Astronomy

Sunset on [Mountain] from [Viewing Point]

Sunset on [Mountain] from [Viewing Point]

How do I get the days in this year when the sun will set exactly on top of Fuji as viewed from Enoshima.

I shamefully admit that I just want to take a nice picture of Fuji.


You would like to do some Viewing “Diamond Fuji”!

Using Python and Skyfield and the GPS coordinates in your urls:

Mt_Fuji = earth + Topos(latitude_degrees = +35.36304, longitude_degrees = +138.73040, elevation_m = 3776.0) Enoshima = earth + Topos(latitude_degrees = +35.29875, longitude_degrees = +139.47457, elevation_m = 10.0)

I get the following. I make no guarantees!

Mt. Fuji peak from Enoshima azimuth: 276.23 altitude 2.86

import numpy as np import matplotlib.pyplot as plt from skyfield.api import Loader, Topos load = Loader('~/Documents/fishing/SkyData') # single instance for big files ts = load.timescale() de421 = load('de421.bsp') sun = de421['sun'] earth = de421['earth'] moon = de421['moon'] Mt_Fuji = earth + Topos(latitude_degrees = +35.36304, longitude_degrees = +138.73040, elevation_m = 3776.0) Enoshima = earth + Topos(latitude_degrees = +35.29875, longitude_degrees = +139.47457, elevation_m = 10.0) hours = 17 - 9 + np.arange(91)/60. days = np.arange(1, 367) alt_Fuji, az_Fuji, d_Fuji = Enoshima.at(ts.now()).observe(Mt_Fuji).apparent().altaz() alt_Fuji, az_Fuji = [thing.degrees for thing in (alt_Fuji, az_Fuji)] d_Fuji_km = d_Fuji.km Mt_Fuji_obs = Enoshima.at(ts.now()).observe(Mt_Fuji).apparent() if True: seps = [] for day in days: times = ts.utc(2019, 1, day, hours) sunpos = Enoshima.at(times).observe(sun).apparent() Fujipos = Enoshima.at(times).observe(Mt_Fuji) sep = Fujipos.separation_from(sunpos) seps.append(sep) sepz = [x.degrees for x in seps] SEP = np.array(sepz) if True: plt.figure() plt.imshow(SEP, vmin=0, vmax=5) plt.colorbar() plt.xlabel('minutes after 17:00 JST', fontsize=14) plt.ylabel('day number in 2019 JST', fontsize=14) plt.title('Sun sep (deg) from Mt. Fuji from Enoshima', fontsize=14) plt.show() # make a detailed plot if True: days_1 = np.arange( 95, 100) # april 5 thru 9 days_2 = np.arange(246, 251) # sept 3 thru 7 both = [] for days in (days_1, days_2): altazs = [] for day in days: times = ts.utc(2019, 1, day, hours) alt, az, d = Enoshima.at(times).observe(sun).apparent().altaz() alt, az = [thing.degrees for thing in (alt, az)] altazs.append((alt, az)) both.append(altazs) if True: hw_deg = 5.0 altmin, altmax = alt_Fuji - hw_deg, alt_Fuji + hw_deg azmin, azmax = az_Fuji - hw_deg, az_Fuji + hw_deg xFuji = [az_Fuji - 2*alt_Fuji, az_Fuji, az_Fuji + 2*alt_Fuji, az_Fuji - 2*alt_Fuji] yFuji = [0, alt_Fuji, 0, 0 ] plt.figure() for i, altazs in enumerate(both): plt.subplot(2, 1, i+1) for (alt, az) in altazs: plt.plot(az, alt) plt.plot(xFuji, yFuji, '-k', linewidth=2) plt.plot([azmin, azmax], [0, 0], '-k') plt.xlim(azmin, azmax) plt.ylim(altmin, altmax) plt.ylabel('altitude(deg)', fontsize=14) plt.xlabel('azimuth (deg)', fontsize=14) plt.suptitle('Sunset vs Mt. Fuji from Enoshima', fontsize=14) plt.show()

My attempt at an answer of my own question. I have no confidence that it is correct, and I'd like to know whether there's an easier way to do this…

https://www.movable-type.co.uk/scripts/latlong.html tells me that the bearing is 90.3°.

A quick application of middle school trigonometry tells me that the visible elevation of Fuji is about 3413 m or 2.90°.

Next, I went to Stellarium, fixed my position to Enoshima, and exported the Ephemeris (F10 menu) of the Sun in a 5 minute intervals with horizontal coordinates from February till May.

Finally, I used a quick python script to find the line in the Ephimeris export where the sun is closest to my desired coordinates (90.3°, 2.9°)

import re from pprint import pprint height = "Height" azi = "Azimut" # Quick and dirty parser pre = re.compile("([+-])(d+)°(d+)'([0-9.]+)"") def ph(v): m = pre.match(v) if m: sign, *nums = m.groups() return sum([float(s) * 60 ** (-e) for e,s in enumerate(nums)]) * float(sign + "1") try: return float(v) except: pass return v res = [] with open('ephemeris2.csv') as f: head = next(f).split(", ") for line in f: php = [ph(v) for v in line.split(", ")] res.append(dict(zip(head, php))) # This is where the magic happens! filt = [k for k in res if k is not None and height in k and azi in k] filt.sort(key = lambda v: (v[height] - 2.9) ** 2 + (v[azi] - 270.3) ** 2) pprint(filt[:5])

This yielded me

{ 'Azimut': 270.13194444444446, 'Datum and Time': '2019-03-25 17:39:00', 'Height': 3.0792222222222225 }

I'm unsure whether I can just convert the Bearing to Azimuth like that, but I suspect that a simple mathematical mistake is even more likely…


See a sunset on Uranus, other worlds (and a moon, too) in this NASA simulator

If you watched the sun set on Uranus, the sky would start off as a brilliant blue and fade into deeper blues with striking turquoise notes. So how do we know that?

Geronimo Villanueva, a planetary scientist at NASA's Goddard Space Flight Center, visualized what sunsets look like on Uranus (at the 1-minute, 43-second mark in the video above), as well as on Earth, Mars, Venus and Saturn's largest moon Titan while building a computer modeling tool for a potential future mission to Uranus. This tool is being developed with the ultimate goal to perhaps one day carry it through Uranus' atmosphere to study the atmosphere in person, according to a NASA statement.

But for now, because sunsets happen with planets rotate away from the light of their star (in our case, the sun) and during this process photons (light particles) are scattered in different directions depending on the types of molecules in the atmosphere, these simulations are a valuable tool for exploring far-off atmospheres.

Using known information about these worlds' atmospheres, Villanueva created a set of sky simulations that show what sunset would look like on these worlds. In the animations created from these simulations, the view is what you would see if you were looking up at the sky from these worlds through a wide camera lens, with a white dot representing the sun's location.

While, in this simulation, sunset on Uranus is a stunning ombre of blue tones, the sky on Venus shifts from a dull yellow to a muddy brown, the sky on Mars appears as a greyish-brown spectacle and Titan's shifting sky moves from a vibrant orange-yellow to a deep, burnt orange.

These sky simulations are now part of an online tool known as the Planetary Spectrum Generator, which was developed by scientists at NASA Goddard (including Villanueva). With this generator, scientists can simulate how light moves through the atmospheres of objects ranging from planets to comets. With this tool, scientists can explore the atmospheres of far-off worlds and rocky objects and better understand their surfaces and atmospheres, according to the same statement.

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That's impressive, but Mars has a tricky atmosphere. Red light is scattered far more than blue light, hence the caramel color for the atmosphere except near the Sun. Here is a NASA near true color image from Mars.


Earth is the opposite with scattering, where blue light is scattered far more than the longer wavelengths. The extreme visible red light scatters perhaps 8 or 9x more than the far blue light we see.

The reason for the scattering differences is due to what is known as "selective scattering" where the particle sizes in the atmosphere are of a size that closely matches a certain wavelength. For Mars the particle sizes (CO2, IIRC) are about that of red light so red light scatters away leaving blue light adjacent to the Sun.


The breathtaking video

Through the video, NASA shows us a glimpse of what a sunset would look like from the surface of Earth, Venus, Mars, Uranus, and even Titan, the largest moon of Saturn. As these cosmic bodies rotate away from the light of the Sun during a sunset, photons get scattered in different directions depending on their energy as well as the types of molecules in the atmosphere.

The result is a spectacular aurora of colours, each one different than the one before. While we are well versed with sunsets on Earth, the ones on other planets are poised to catch our attention more.

A sunset on Mars, for instance, turns from a brownish to blueish colour because of the Martian dust particles which scatter the blue colour more effectively . One on Uranus is “a rich azure that fades into royal blue with hints of turquoise.”

The Uranian sunset gets its colours from the interaction of sunlight with the planet’s atmosphere that is rich in hydrogen, helium and methane. These elements absorb the longer-wavelength red portion of the light and scatter the shorter-wavelength blue and green portions.


Mauna Kea Summit & Observatory Tours and Activities

Visiting the Mauna Kea Summit and Observatories gives you the feeling of being on top of the world for good reason: You’re actually pretty close. Standing at 13,796 feet (4,138 meters), the mountain is Hawaii's tallest and the highlight of many visitors' trips to the Big Island of Hawaii. The Mauna Kea Observatories (MKO) feature some of the world's largest telescopes, including equipment from Canada, France, and the University of Hawaii, due to its designation as an unparalleled destination for stargazing.

Mauna Kea Summit & Observatory

Visiting the Mauna Kea Summit and Observatories gives you the feeling of being on top of the world for good reason: You’re actually pretty close. Standing at 13,796 feet (4,138 meters), the mountain is Hawaii's tallest and the highlight of many visitors' trips to the Big Island of Hawaii. The Mauna Kea Observatories (MKO) feature some of the world's largest telescopes, including equipment from Canada, France, and the University of Hawaii, due to its designation as an unparalleled destination for stargazing.


Sunrise

The first rays of morning sun on Mount Rainier, as seen from Sunrise.

At an elevation of 6,400 feet, Sunrise is the highest point that can be reached by vehicle at Mount Rainier National Park. In summer, mountain meadows abound with wildflowers. On clear summer days, Sunrise provides breathtaking views of Mount Rainier and Emmons Glacier. Sunrise Point offers nearly 360-degree views of the surrounding valleys, Mount Rainier, and other volcanoes in the Cascade Range such as Mount Adams. These views and an excellent trail system make Sunrise the second most visited location in the park. Sunrise is located 60 miles northeast of the Nisqually Entrance and 14 miles northwest of the Sunrise/White River turnoff on State Route 410. The article, White River and Sunrise: The Captivating Northeast Corner of Mount Rainier National Park , provides an overview of the history of the area.

The Sunrise Road usually opens in late June or early July and closes in late September to early October. Check the road status before setting out.

You might also consider visiting other areas of the park like the Carbon River-Mowich Lake area, Ohanapecosh, Longmire , and Paradise .

The Sunrise area perches on the east side of Mount Rainier in a subalpine meadow.

Services

The Sunrise Visitor Center is open daily from early July to early September and closed in winter. Here visitors will find exhibits, guided interpretive programs, book sales, and a picnic area.

The Sunrise Day Lodge, open from early July to late September, offers food service and a gift shop. There is no overnight lodging at the Sunrise Day Lodge.

NOTE: Many facilities are closed or have limited hours due to COVID-19 health precautions. Learn more about the park's response in the COVID-19 Visitor Guide for Healthy Access.

Camping

The White River Campground and picnic area is located 12 miles from the Sunrise Visitor Center.

Columnar andesite formed from an ancient Mount Rainier lava flow, found along the road to Sunrise.

Roadside Attractions

Tipsoo Lake - Located at Chinook Pass, this subalpine lake is set in a glacier-carved basin amid spectacular wildflower meadows.

White River Patrol Cabin - Located in White River Campground Loop C, this historic patrol cabin was built in the late 1920s and is part of a series of patrol cabins linked by trails that helped the early rangers protect the park.

Columnar Lava - On the drive from White River Campground to Sunrise Point, watch the left-hand road banks for andesite columns that formed from an ancient Mount Rainier lava flow.

Sunrise Point - Sweeping views of the Cascade Range to the east, Sunrise Lake to the north, and Mount Rainier to the southwest.

Sunrise - The fortress and blockade style structures of the Sunrise Visitor Center as well as the rustic Sunrise Day Lodge are part of the National Historic Landmark District. They are set amid colorful subalpine meadows with Emmons Glacier and Mount Rainier as a stunning backdrop.

Yakima Park - The meadows surrounding Sunrise are known collectively as Yakima Park. During the summers, this area was a favorite of the Yakama people for hunting and gathering. For thousands of years, these and other subalpine meadows have been important to indigenous people for their beauty and for the valuable plant and animal resources they provide.

Learn more about the geology of the area by listening to the Sunrise Geology Audio Tour while driving along the Sunrise Road! This audio tour also takes you on a short walk to explore the glaciers and moraines visible from the Emmons Glacier Overlooks.

View lush wildflower meadows around Tipsoo Lake along the Naches Peak Trail.

Hiking

Along State Route 410:

Tipsoo Lake (0.5 mi/0.8 km)
Easy walk around this picturesque subalpine lake surrounded by gorgeous wildflower meadows. Please stay on trails to protect the delicate meadows. Dogs are not allowed on trails.

Crystal Lakes Trail (6.3 mi/10.1 km)
Located 4.5 miles (7.2 km) north of Cayuse Pass. Spectacular meadows highlight this trail in midsummer. Watch for elk and mountain goats. Upper Crystal Lake lies in a basin 0.7 miles (1.1 km) beyond the lower lake.

Naches Peak Loop Trail (3.4 mi/5.5 km)
Starting from Tipsoo Lake, travel clockwise along trail, cross SR 410 on the Pacific Crest Trail bridge going south on the Pacific Crest Trail to keep the mountain in view. This trail features superb wildflower displays in midsummer, huckleberries in early fall, and brilliant autumn colors.

At White River:

Summerland Trail (8.5 mi/13.7 km)
Located 3 miles (4.8 km) west of the White River Entrance, this popular trail features dense forest, subalpine meadows, panoramic views of Mount Rainier and Little Tahoma, mountain goats, and elk herds.

Glacier Basin Trail (6.5 mi/10.5 km)
Beginning from Loop D of the White River Campground, hike through forest and past mining camp remains. Take the 0.5 mile (0.8 km) side-trip to view the terminus of the Emmons Glacier.

At Sunrise Point:

Palisades Lake Trail (7 mi/11.3 km)
A series of beautiful subalpine lakes are found along this trail. There are no views of Mount Rainier.

Sunrise Nature Trail (1.5 mi/2.4 km)
From the upper end of the Sunrise picnic area, follow this self-guided loop tour through subalpine meadows for breathtaking views of Mount Rainier and the Cascades.

Emmons Vista Overlooks (1 mi/1.6 km)
Located on the south side of Sunrise parking area. For spectacular views of Emmons Glacier follow the Sunrise Rim Trail to the two overlooks.

Frozen Lake Loop Trail (3 mi/4.8 km)
Follow the Sunrise Nature Trail to the ridgetop, then head west on the Sourdough Ridge Trail. Return to Sunrise via the Wonderland Trail and Old Campground Trail.

Silver Forest Trail (2 mi/3.2 km)
From the south side of Sunrise parking area, follow the Sunrise Rim Trail to the Silver Forest Trail through an old burned area. The "silvery" color of the charred trees bleached white by the weather give the area its name.

Shadow Lake Loop (3 mi/4.8km)
From south side of Sunrise parking area, hike the Sunrise Rim Trail to Shadow Lake and see colorful meadows along the way. Return via Old Campground Trail.

Mount Fremont Lookout Trail (5.6 mi/9.0 km)
Follow Sourdough Ridge Trail to the Mount Fremont Trail. This trail leads to a historic fire lookout with excellent views of Mount Rainier and its glaciers.

Burroughs Mountain Trail (First Burroughs: 4.7 mi/7.5 km, Second Burroughs: 7 mi/11.2 km)
Access via the Sourdough Ridge Trail. Hike this trail for outstanding mountain views and to visit the most accessible tundra in the Cascade Range. Plants here have a very short growing season. Please stay on the trail. Return via the Sunrise Rim Trail for a change of scenery.

Enjoy further day hikes in the Sunrise area, or learn about more Trails of Mount Rainier.

There are many ways to experience Mount Rainier National Park. Explore the wide variety of terrain in the Sunrise area through this video. Hike through subalpine meadows up to alpine tundra. Play next to glacier-fed rivers, watch wildlife, and camp in the wilderness.


The 5 Best Night Sky Viewing Spots in Orange County

OK, let's face it: Orange County isn't exactly a stargazers' destination of choice. We haven't done the math, but it's likely the second-brightest county in the state (after San Francisco), with its renowned sprawling development and its position nestled between brightly lit Los Angeles and San Diego. But even in Orange County there are places where you can get out and see more than a few stars, especially on new moon nights, and especially if you get into its less-developed southeast end.

Irvine Regional Park
But let's try the north end of the county first. Irvine Regional Park sits just where the 24/7 glare of the southern L.A. Basin starts to slacken a bit, just at the foothills of the Santa Ana Mountains. You will generally be able to make out the major constellations here along with perhaps a few other objects. The stargazing window here is brief: The park closes at 9:00 pm in summer and 6:00 pm in winter, but their "summer" starts on April Fool's Day and ends on Halloween. There's also a (somewhat pricey) private campground on Irvine Lake not far away.

An exploration of SoCal's astronomical gems isn't complete without a visit to Mount Wilson Observatory. Take a peek inside with KCET "SoCal Connected."

Crescent Bay, Laguna Beach
The city of Laguna Beach is a trifle darker at night than its neighbors, as it's hemmed in by the undeveloped San Joaquin Hills that block some of the glare from the I-5 corridor. Crescent Bay Beach at the north end of town offers a quarter mile of sheltered cove perfect for horizontal lounging and skywatching, and it's beneath a bluff that serves to block out the headlights on the Pacific Coast Highway. There are houses on the ridge that face the beach, so don't expect pitch black skies. Still the beach is open until midnight, which allows a good amount of time to watch the stars wheel overhead. Beach cautions apply: be careful of the water — this is not a beach for poor swimmers — and don't bother the seals.

Caspers Wilderness Park, San Juan Capistrano area
When you start getting into the Santa Ana Mountains and away from the suburban glare, the skies get darker at night. The Orange County Parks district (OC Parks) makes the most of this in promoting the 8,000-acre Ronald W. Caspers Wilderness Park northeast of San Juan Capistrano: one of their catchphrases for this out-of-the-way oak woodland is "See the night sky in a different way." You won't get much night sky there if you visit on a day use basis, as the park closes at sunset. But bring your camping gear to one of its 23 sites and the night is yours. If campfires and the occasional headlights harsh your stargazing buzz, consider a flashlight hike up the Bell Canyon Trail to get into darker country. And if you cover your flashlight with a red lens as you hike, you won't wait as long for your night vision to kick in.

Silverado, Cleveland National Forest
Just 7.5 miles from the lights of North Tustin, this 19th century silver mining town is now a laid back unincorporated community with a roadside cafe and a biker bar in Silverado Canyon, just inside the Cleveland National Forest. There are spots on either end of town where you can park without bothering the locals: a highway pullout near Silverado Creek just past the ridge at the west end of town, and the Mountain View Trail just shy of 4 miles east of town along Silverado Canyon Road. Parking at night in the Cleveland National Forest will require an Adventure Pass, so make sure you've got one.

Holy Jim Falls trailhead parking, Cleveland National Forest
Now we're talking. This spot is about as deep as you can get into the Santa Anas without strapping on a backpack. In fact, certain times of year this isn't the best place to try to get to with a low-slung sedan, unless you don't like it very much. If you've got a high-clearance car or truck, the road all the way to the trailhead shouldn't be a challenge. If you don't, you can use the large parking area at the junction of Trabuco Canyon and Holy Jim Canyon Road. The area is wooded, but you should be able to find good, expansive views through the trees. Two things to keep in mind: this is Cleveland National Forest land, so a ranger may ding you for an Adventure Pass, and there are a lot of locals nearby, so respect their need for night-time quiet, as hard as that may be when you see that really bright meteor.

Note: This article has been updated. Please check the status of all recommended areas before heading out.


NASA simulations provide tantalizing taste of sunsets on other planets

NASA has released a video showing what sunsets might look like on a number of different planets. The simulations were created by Geronimo Villanueva, a planetary scientist from NASA's Goddard Space Flight Center, using a computer modeling tool being developed for a possible future mission to Uranus.

If you watched a sunset on the Moon, it would be a bit anticlimactic. It would consist of the Sun simply winking out as it dropped below the horizon. There wouldn't be any twilight or dusk, and certainly not any of the spectacular colors associated with sunsets on Earth. This is because the Moon lacks one vital ingredient – an atmosphere. Our familiar sunsets are the result of sunlight passing through the atmosphere and changing angles, where it interacts with the gases, water vapor, and dust to produce the different shades and colors.

This interplay between light and different molecules is of interest to space scientists because it can reveal a lot about the composition and properties of a planet's atmosphere. In the case of Uranus, NASA says that a sunset there would be marked by a rich azure tone that fades into royal blue with hints of turquoise as the Uranian atmosphere's hydrogen, helium and methane absorb the longer-wavelength red portion of the light and scatter the shorter-wavelength blue and green sections of the spectrum as they collide with gas molecules and dust particles.

It's a process similar to what makes the terrestrial sky blue. It's also one that could be a valuable tool to study the atmosphere of Uranus when visited by some future spacecraft. For testing reasons, Villanueva simulated sunsets on Uranus and other worlds using an online tool called the Planetary Spectrum Generator, which was developed to give scientists an understanding of the atmosphere and surface composition of different planets, exoplanets, moons, and comets by replicating the way light travels through their atmospheres.

In the first video below, the Sun is shown moving as if seen from the surface by a wide-angle lens on Uranus, Earth, Mars, Titan, and Venus, while the second provides a different perspective.


Sunset on [Mountain] from [Viewing Point] - Astronomy

Welcome to the website of the Central Valley Astronomers! Astronomy is a wonderful hobby and profession, focusing on the study of the vastness of space beyond our planet. Depending on your level of expertise, it can be intimidating to wade through the variety of information and equipment available.

That, however, is exactly why we are here! Whether you just want to learn a few star and constellation names, or you want to photograph the heavens in their beauty, or anything in between, we can help you explore the options and make this fun hobby your own. Our membership comprises amateurs, professionals, and even teachers and professors. We have arranged a variety of activities to help you get to know us and learn about astronomy.

Our club meetings are a great way to meet our most active members face to face. Most meetings have an educational element, with a presentation by one of our members or a guest speaker, followed by coming events and general club business. Our dark sky star parties, typically at Eastman Lake, are the best way to learn about the various types of equipment available to amateur astronomers, be it a basic pair of binoculars or the many types of optics available today. We even do camping star parties up at Courtright Reservoir, for those who want to experience the darkest skies available in the area for multiple nights.

If you are wondering how to get started, please give one of us a call or send us an E-Mail. If you have an interest in space, we want to help you achieve your goals! Astronomy is a rewarding hobby and a wonderful adventure – we hope to see you soon!


Observatory Public Night Program

Leander McCormick Observatory is normally open on the FIRST and THIRD Friday nights of every month (except holidays) year round ( see COVID update above ). Visitors can view celestial objects through the historic 26-inch McCormick Refractor and other smaller telescopes (weather permitting), tour the Observatory, hear a presentation by an astronomer, and see the exhibits. All faculty, postdocs and graduate students participate through a rotating schedule.

No tickets are required and advanced reservations are not necessary.

The Observatory is normally open from 9:00-11:00 p.m. during daylight saving time (mid March to early November) and 7:00-9:00 p.m. during eastern standard time (early November to mid March) ( see COVID update above ).

McCormick Observatory is located in Charlottesville on the western edge of the UVA grounds (click here for directions).

Please Note: Owing to the crowd size, groups cannot be accommodated at McCormick Public Nights. If you would like to bring an edcuational group to McCormick Observatory, please read the section below concerning group visits.

Fan Mountain Observatory Public Nights

Fan Mountain Observatory is normally open to the public twice a year, once in April and once in October ( see COVID update above ). The Fan Mountain Observing Station is located 13 miles south of Charlottesville at the end of a 3 mile long gravel road (click here for directions). See the calendar above for the exact dates for a particular year. Tickets, which are free, are required for Fan Mountain public nights (except for Friends of the Leander McCormick Observatory).

To request tickets for Fan Mountain Observatory Public Nights, send a self-addressed stamped envelope, along with the number of tickets requested (up to 6), to ( no ticket requests are being fulfilled see COVID update above ):

Fan Mountain Public Night
P.O. Box 400325
Charlottesville, VA 22904-4325

Requests for Tickets are only accepted at certain times of the year:

  • For the April Fan Mountain Public Night, send requests starting March 1st (the supply of tickets is usually exhausted by the 3 rd week of March).
  • For the October Fan Mountain Public Night, send requests starting September 1st (the supply of tickets is usually exhausted by the 3 rd week of September).

Please Note: Owing to the demand for tickets, groups cannot be accommodated at Fan Mountain.

All requests must be accompanied by a self-addressed stamped envelope or tickets cannot be sent. You must also list the number of tickets (up to 6) that you need (individual groups larger than 6 cannot be accommodated at Fan Mountain Public Nights).

Friends of the Leander McCormick Observatory do NOT need tickets for Fan Mountain Public Nights. The staff will have a list of Friends at the Observatory.

Tickets will be mailed out 2-3 weeks prior to the public night, on a first come, first served basis until the supply is exhausted. Again, only requests with a self-address stamped envelope, and a number (up to 6) of tickets requested can be accommodated.

Group visits to McCormick Observatory

The Leander McCormick Observatory is open to educational groups with advanced reservations on the SECOND and FOURTH Friday nights of every month. Groups must call (434) 924-7494 to schedule a visit. Group nights are reserved quickly it is advisable to reserve a group night at least several months in advance.


Watch the video: Sunset Speedrun Top to Bottom #Hanggliding (January 2022).