Tag Archives: vanderbei

Eta Carinae

by Robert Vanderbei Two images of Eta Carinae taken on February 7, 2016. SBIG Universal on Takahashi FSQ-104D H-alpha = 40 min, OIII = 6 min Two-minute unguided exposures. Richardson-Lucy deconvolution, Gaussian blur, Log. Advertisements

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The Trapezium in M42

by Robert Vanderbei

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Moon Occults Venus in the Daytime

by Michael Wright On December 7, 2015, a daytime occultation of Venus by the Moon was visible from most of North and Central America. I observed from my office parking lot at lunchtime using IS binoculars, but member Robert Vanderbei created … Continue reading

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M27, the Dumb Bell Nebula

by Robert Vanderbei

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July 2015 Blue Moon

Blue Moon by Member Robert Vanderbei July 30, 2014, 22:35 EDT (8 hours before actual full fullness) Canon 450D on 10″ RC Four-image Mosaic of 8-image stacks. Exposure: 1/2400 sec at ISO 800.

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Summertime Favorites: Messier 13 and 92

Member Robert Vanberbei captured these stunning images of two favorite summertime deep sky objects: Messier 13 – the Great Globular Cluster in Hercules and Messier 92 another globular in the same constellation. For M13 and M92’s H-R diagrams and more of … Continue reading

Posted in September 2014, Sidereal Times | Tagged , , , | Leave a comment

Imaging the Universe

by Surabhi Agarwal, Co-editor Spring is finally here. Amateur astronomers can now rejoice in the fact that they can look up at the sky without being part of the film “Frozen”. It is time to take out your cameras and … Continue reading

Posted in April 2014, Sidereal Times | Tagged , , , , | Leave a comment

Observing Barnard’s Star

by Robert J. Vanderbei Barnard’s Star is one of the closest stars to us. It is also the star that has the fastest apparent motion across the sky moving about 11 arcseconds per year. With a right ascension of 17h … Continue reading

Posted in October 2013, Sidereal Times | Tagged , | 1 Comment

Messier M15

by Robert Vanderbei I find it amazing how accurate the Clear Sky website is at predicting in advance the quality of an observing session. I am signed up for their email alerts. A few days ago, I started getting alerts … Continue reading

Posted in Mid-Summer 2013, Sidereal Times | Tagged , | Leave a comment