Waid Observatory

Object: M35 & NGC 2158
Date: April 03, 2006      -      Location: Margate, FL
Telescope: MK-69   Mount: MI-250   Camera: ST-10XME   
Filters: Astrodon TruBalance / Baader Neodymium LPR
Exposure:   R G & B = 16 min. each - 2 min sub-exposures (Bin 2X2)
Click on the image below to view at higher resolution.


M35 & NGC 2158


M35 & NGC 2158 1

  Discovered by Philippe Loys de Chéseaux 1745-46.

M35 is an open star cluster of roughly circular shape covering an area approximately the size of the full moon.  It consists of several hundred stars of which over a hundred are brighter than magnitude 13.  The density of stars in the center of the cluster is about 6 per cubit parsec.  The distance across the cluster is about 24 light years and its distance from the earth is estimated to be 2,800 light years.  The age of the cluster is approximately 100 million years. M35 is approaching us at 5 km/sec.

Located in the upper left of the image above is the much more distant open cluster, NGC 2158.  It is over 10 times older than M35 and its is composed of older, yellower, stars.  Its distance is estimated to be about 16,000 light years.


Copyright Donald P. Waid