M101 by Jeff Wolff

ASN member Jeff Wolff created this beautiful photo of the spiral galaxy M101 on June 3rd with his new ASI1600MC-cool, a color 16 megapixel camera with set-point cooling.  The cooler was set to -20 degrees C.  The camera was attached to his 10 inch f4 newtonian scope with a ParaCorr II coma corrector in his home observatory (SW Reno!).  The image is a stack of thirteen 60-second exposures, which greatly reduces the effects of ambient artificial light.  No light-pollution filter was used.

M101 is 27 million light years away, about half the distance of the Virgo Cluster.  It is about twice the diameter of the Milky Way and is thus among the largest spiral galaxies.  M101 can be found just above the Big Dipper's handle and has a visual magnitude of +7.9. 

M101 Jeff Wolff 060316 dk

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Mercury Transit, Blair Observatory, May 9, 2016

ASN member Jay Lawson recorded the May 9 Mercury Transit using the restored Carl Wells telescope at the Blair Observatory in Sparks NV.

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Occultation of Venus December 7, 2015

The Moon covered Venus about 70 minutes after ASN member Ray Bertucci took this photo.  Reno's sky was cloudy when Venus disappeared.

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Girl Scouts Star Party 2015

Girl Scouts Star Party 2015

The ASN was invited back to the Girl Scouts of America's Camp Wasiu II for stargazing on the night of August 15, 2015. Camp Wasiu II is near Bassetts in the Gold Lakes area of the California foothills, at an elevation of 5,900 ft. About 70 scouts of all ages and 30 adults…

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Lassen Star Party 2015

Lassen Star Party 2015

For the third consecutive year, the ASN participated in the Lassen Volcanic Dark Sky Festival. The 2015 event was held in Lassen National Park from August 7 through 9. Shown are some of the many ASN telescopes set up at the Bumpass Hell parking lot, at an elevation of 8,200 ft. The…

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