The Night Sky

Monthly Sky Calendar/Maps

Tonights Sky - Hubblesite video

All Sky Camera at DMNS
Check out the Perseid meteor shower movie taken from our DMNS All Sky camera system.
Perseids 2009
If you would like to help collect data for the All Sky Project, contact Kim Evans at 303-370-6073.

Comet ISON 2013
Comet ISON began its trip from the Oort cloud region of our solar system and is now travelling toward the sun. The comet will reach its closest approach to the sun on Thanksgiving Day -- 28 Nov 2013 -- skimming just 730,000 miles above the sun's surface. If it comes around the sun without breaking up, the comet will be visible in the Northern Hemisphere with the naked eye.

Reminder: email links to visitors

The Sky from Different Places on Earth
The appearance of the daily motions of the sky depends upon where you are on Earth.

Stars and Stars of the Week
Stars, constellations, zodiac

Mars Opposition
The distance to Mars varies from about 56 million kilometers (about 35 million miles) to 400 million kilometers (about 249 million miles). Why the difference? And why so close now?

Mars Retrograde
When Mars is close, it appears to move backwards from night to night! Find out why.

Mars Close Approaches
Close is a relative term. At its closest, Mars is still tens of millions of miles away from Earth. Still, the decreased distance during "closest approach" allows for fuel-conserving flights to Mars every 26 months and a good view of Mars once or twice every 15 to 17 years for Earth-bound sky watchers.

Click on image/link for larger view


MOVIES ___________________

WhyDarkAtNight-tn.png Why is it Dark at Night?



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