Blog Archives

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.

Image | Posted on by | Tagged , , | Leave a comment

The Trapezium in M42

by Robert Vanderbei

Image | Posted on by | Tagged , , , | Leave a comment

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

Image | Posted on by | Tagged , , , , , | Leave a comment

M27, the Dumb Bell Nebula

by Robert Vanderbei

Image | Posted on by | Tagged , , | Leave a comment

The Best of Sidereal Times

by Michael Wright, Co-editor When we scanned back issues of Sidereal Times for the 50th Anniversary Dinner, Surabhi and I found many lost gems buried in the archive. Occasionally, we will republish some. This is the first installment. In December … Continue reading

Image | Posted on by | Tagged , , | Leave a comment