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Astronomy

Looking for an astronomy fix? We have you covered.

Photo of a full moon in the early evening with birds flying in the sky Credit: NASA/Aubrey Gemignani
Last Full Moon of 2021

Dec. 18, 2021

Enjoy the last full Moon of 2021 tonight! You’ll find the Frost or Winter Moon in between the horns of Taurus, the Bull. Does it appear slightly smaller than average? The Moon is at apogee, meaning at its furthest point in orbit from the Earth — making it a mini-moon...

Read more about Last Full Moon of 2021

Graphic from Sky & Telescope magazine showing the eastern horizon with the constellation of Gemini above the horizon and the radiant of the meteor shower
Geminid Meteor Shower

Dec. 13, 2021

Meteor shower alert! Fingers crossed for clear skies tonight & into tomorrow morning. The Geminid meteor shower will be at its best after the Moon sets through sunrise. For those living under dark skies, expect to observe 2-3 per minute. City dwellers can expect to see 1 per minute. Bundle...

Read more about Geminid Meteor Shower

Graphic from Stellarium showing the eastern sky on December 7 at 9pm shows winter constellations rising
The Winter Sky

Dec. 7, 2021

The wonders of the winter sky have arrived! Look to the east for a magnificent display of very bright stars — more than any other season. The iconic constellation Orion is fully above the horizon by 9pm. His companions Canis Major and Canis Minor are not far behind. The twins...

Read more about The Winter Sky

A glass block marks Saturn's spot in the solar system in a new scale model on the CU Boulder campus. (Credit: CU Boulder)
Hear planets sing as you ‘walk’ through space in new solar system model

Dec. 7, 2021

Have you ever wanted to travel to Neptune? Thanks to an updated solar system model on campus, you can “visit” the planet as you stroll from the Fiske Planetarium north to Colorado Avenue—just a few minutes if you hustle. You can also catch the sounds of Neptune and other planets...

Read more about Hear planets sing as you ‘walk’ through space in new solar system model

Graphic from Stellarium showing the glow of sunset along the southwest horizon with Jupiter, Saturn and Venus along the ecliptic
Three Planets in a Row

Dec. 4, 2021

Check out Saturn tonight in the southwestern sky! The ringed-planet appears half way between Jupiter to the upper left and crazy-bright Venus down to the lower right. The three planets help us trace out the ecliptic (the imaginary line in our sky which marks the Sun’s path, plus this is...

Read more about Three Planets in a Row

Graphic from Sky Safari app showing the Moon in Cancer the Crab with Leon down to the left and Hydra to the lower right
The Moon and the Beehive

Nov. 24, 2021

The Moon is beachside tonight and hanging out in Cancer the Crab. Grab your binos to it check out! Pan about 3 degrees (6 full moon widths) to the right and buzz right into the famous Beehive cluster, otherwise known as Messier 44. Graphic credit: SkySafari app

Read more about The Moon and the Beehive

Graphic from Sky & Telescope showing the Moon at mid-eclipse with the Pleiades open cluster 6.8 degrees away
Deep Partial Lunar Eclipse

Nov. 18, 2021

Tonight starting at 11:45pm MST, observers across the Americas, the Pacific, Australia, eastern Asia, and northern Europe will be treated to the beginning of a deep partial lunar eclipse. The celestial event takes place right next to the beautiful and very bright Pleiades open cluster (M45). Mid-eclipse occurs at 2:03am...

Read more about Deep Partial Lunar Eclipse

Graphic from Sky and Telescope showing the Leonid meteor shower radiant in the constellation of Leo, just to the east of the Big Dipper
Leonids

Nov. 17, 2021

The almost full Moon will make the Leonid meteor shower challenging to watch this year, but it only takes 1 fireball to create a magical memory. So, grab your sleeping bag, a mug of cocoa & watch the debris trail of leftover bits from Comet 55P/Tempel-Tuttle put on a celestial...

Read more about Leonids

Graphic from Sky Safari showing Jupiter, the Moon and Saturn within the constellation of Capricornus
Triangle in the Sky

Nov. 10, 2021

Check out tonight’s triangle in the southern sky! The Moon, Jupiter and Saturn are all gathered within the constellation of Capricornus, the mythical sea goat. Image credit: SkySafari app

Read more about Triangle in the Sky

Screen shot from Stellarium showing all of the four large planets in the sky as of October 27 2011 also included nasa image of planets and voyagers logo
Voyager Planets

Oct. 27, 2021

Got a telescope? Explore the largest planets in our solar system - all of which are featured in VOYAGERS! Fiske’s space musical . Just look to the southern sky to observe Jupiter, Saturn, Uranus & Neptune - all in the same night! Graphic credit: Stellarium

Read more about Voyager Planets

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More Astronomy Resources

Photo of the Andromeda galaxy by Stephan Abraas Stargate Observatory in Canon City

Astronomy-related websites

Enjoy our favorite astronomy-related websites for up-to-date information on what’s up in the sky, NASA news, beautiful astronomy images, eclipses, satellites, plus more.

  • Astronomy magazine - The Sky this Week
  • Astronomy Picture of the Day - Each day a different image or photograph of our fascinating universe
  • Heavens-Above - Information about artificial satellites, ISS, HST, and Iridium flares
  • International Dark Sky Association - Videos about Light Pollution
  • NASA - News and mission information
  • NASA - eClips: Bringing STEM alive through NASA real-world connections and a Special Edition newsletter for Earth Day
  • NASA Jet Propulsion Laboratory videos - What’s Up, Mars Report, etc.
  • NASA Eclipse Information - Eclipses of the Sun and Moon
  • Origin of the Constellations from the International Astronomical Union 
  • Sky & Telescope magazine - This Week’s Sky at a Glance
Losing the Dark still image from film of bright sky, trees and buildings

Learn about light pollution

You can learn more about light pollution and how you can help save our starry skies watch "Losing the Dark" from the International Dark Sky Association and Loch Ness Productions. Starry skies are a vanishing treasure because light pollution is washing away our view of the cosmos. It not only threatens astronomy but also disrupts wildlife, and affects human health. The glows over cities and towns — seen so clearly from space — are testament to the billions of dollars spent in wasted energy by lighting up the sky. The video introduces and illustrates some of the issues regarding light pollution and suggests three simple actions people can take to help mitigate it.

To learn more about local efforts to mitigate light pollution check out the Homeowner's Guide to Boulder's Outdoor Lighting Ordinance.

Hubble photo of a galaxy edge on

Got an astro question?

Email us! We'd love to hear from you.

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Fiske Planetarium

  303.492.5002  

  fiske@colorado.edu  

  2414 Regent Drive, Boulder, CO 80309

  Find Fiske and parking info: CU Interactive Map

 

 

 

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