- Please enable JavaScript for a more complete user experience.
Links
- ABC's of Distances
- Algol minima calculator
- Asteroid impact simulator
- Astronomy Picture of the Day
- Atmospheric optics – halos, rainbows and sundogs
- Aurora oval activity
- Aurora tonight? Check the Kp index to find out
- Black holes FAQ
- Christopher Go's Jupiter site
- Clear Sky Clock – anywhere
- Clear Sky Clock – Duluth, MN area
- Heavens Above — see the space station
- JPL-HORIZONS — locate anything celestial
- Jupiter's Great Red Spot visibility times
- Jupiter's moons – where are they tonight?
- Moon Atlas – free software
- Moon atlases – mother lode
- Moon Globe for iPhone
- Moonrise, moonset, sunrise, sunset for anywhere
- Official U.S. time
- Road to Endeavour – Mars rover blog
- Space weather forecast
- Stellarium – free sky charting software
- The Nine Planets – A tour of the solar system
- The Ultimate Almanac of 21st century sky events
- Weekly updates on bright comets
-
Recent Posts
Recent Comments
- astrobob on Morning crescent moon anticipates weekend solar eclipse
- Doug on Morning crescent moon anticipates weekend solar eclipse
- astrobob on Complete viewing guide to Sunday’s annular solar eclipse
- astrobob on Complete viewing guide to Sunday’s annular solar eclipse
- Carolina on Complete viewing guide to Sunday’s annular solar eclipse
Archives
- May 2012
- April 2012
- March 2012
- February 2012
- January 2012
- December 2011
- November 2011
- October 2011
- September 2011
- August 2011
- July 2011
- June 2011
- May 2011
- April 2011
- March 2011
- February 2011
- January 2011
- December 2010
- November 2010
- October 2010
- September 2010
- August 2010
- July 2010
- June 2010
- May 2010
- April 2010
- March 2010
- February 2010
- January 2010
- December 2009
- November 2009
- October 2009
- September 2009
- August 2009
- July 2009
- June 2009
- May 2009
- April 2009
- March 2009
- February 2009
- January 2009
- December 2008
- November 2008
- October 2008
- September 2008
- August 2008
- July 2008
- June 2008
- May 2008
- April 2008
- March 2008
- February 2008
Meta
Monthly Archives: August 2009
Jupiter’s children go into hiding
The plump moon will stroll by Jupiter tonight and Wednesday night making the planet particularly easy to find. Binoculars and small telescopes will show all four moons tonight but you’ll seek them in vain during part of tomorrow night. This … Continue reading
Join me for a lunar challenge tonight
The waxing gibbous moon shines between the leaflets of a fern during twilight yesterday. Photo: Bob King The sky was hazy last night and the moon low. These two factors combined to give it a pleasing orange color like a ripe peach … Continue reading
We laud you Henrietta
The three top stars of the Great Square crown the rooftop of a neighborhood house lit by moonlight last night. Details: 24mm lens at f/2.8, 25-second exposure at ISO 800. Photo: Bob King Chilly last night and great to be … Continue reading
A star that just won’t settle down
The shuttle Discovery launched successfully last night and is now chasing the International Space Station (ISS). It will rendevous and dock with the ISS on Sunday but I don’t have times yet when you might see the two crossing the … Continue reading
COLBERT keeps astronauts in good humor
The C.O.L.B.E.R.T decal is placed on the Combined Operational Load Bearing External Resistance Treadmill. Credit: NASA/Jim Grossmann At 10:59 p.m. Central time tonight the space shuttle Discovery will launch on its next mission to the International Space Station (ISS). In … Continue reading
Polka dots and a suicidal planet
The waxing first quarter moon will shine very close to Antares Thursday evening in twilight. This map shows them at around 8:30-9 p.m. as you look southwest. Created with Stellarium. The moon will cover the star Antares, the bright red-colored … Continue reading
Jump on the Jupiter wagon
As August looks to September, the familiar figure of Orion the Hunter gains prominence for early morning skywatchers. This photo was taken today at about 5 a.m. Details: 35mm lens at f/2.8, 25-second time exposure at ISO 800. Photo: Bob … Continue reading
Working on the lunar chain gang
Grey clouds skewer the crescent moon around 8:30 Monday night. Photo: Bob King I caught sight of the thick crescent moon last night just before a mass of grey cloud covered it for good. Our weather tonight looks much more … Continue reading
Step into the red triangle
Mars, Aldebaran and Betelgeuse form a triangle of similarly-colored stellar orbs in the morning sky just before dawn. This map shows the sky as you look east around 4 a.m. Created with Stellarium. Early risers can see a red triangle … Continue reading
Stalled stars and footpaths on the moon
The past two nights have been great for meteor and satellite watching. While there are no regular meteor showers on tap until the Orionids of October, they’re always falling from unpredictable places in the sky. The Earth travels at 18 … Continue reading