<< Back to gallery


Jon Greif

Location of Photo:

La Jolla, CA, USA

Date/Time of photo:

November 15-16, 2022, from 8 pm to 3 am PST


Takahashi FSQ-85ED with 1.01x flattener/reducer. ZWO ASI533MC Pro imaging camera. Optolong L-Pro filter. Rainbow Astro RST-135 Mount. ZWO 30mm Mini Guide Scope with ZWO ASI290 Mini guide camera. ASIAIR Plus controller. Processed in Pixinsight 1.8.9.


The Pleiades, also known as The Seven Sisters, Messier 45 and other names by different cultures (Suburu in Japan), is an asterism and an open star cluster, containing middle-aged, hot stars in the north-west of the constellation Taurus. At a distance of about 444 light years, it is among the nearest star clusters to Earth, and is visible to the naked eye in the night sky, even amongst city lights. The cluster is dominated by hot blue luminous stars that have formed within the last 100 million years. Reflection nebulae around the brightest stars were once thought to be left over material from their formation, but are now considered likely to be an unrelated dust cloud in the interstellar medium through which the stars are passing. We've had a few clear nights this past week, and this image, from a few nights ago, is an integration of 49 five-minute exposures taken from our deck in La Jolla.