Warning: session_start() [function.session-start]: open(/home/content/96/12521296/tmp/sess_menvakb8b41bneri673appahd7, O_RDWR) failed: No such file or directory (2) in /home/content/96/12521296/html/display_article.php on line 2

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/content/96/12521296/html/display_article.php:2) in /home/content/96/12521296/html/display_article.php on line 2

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/content/96/12521296/html/display_article.php:2) in /home/content/96/12521296/html/display_article.php on line 2
NGC 2264, The Christmas Tree Cluster  @psychohistorian.org

NGC 2264, The Christmas Tree Cluster

posted: 3380 days ago, on Tuesday, 2009 Sep 15 at 08:05
tags: astronomy, astrophotography, deep sky, Dany Duprez.

NGC 2264, The Christmas Tree Cluster

Contributor: Dany Duprez

This detail cropped from the main image is centred on NGC 2264. The view is 1.48 across. The brightest star in the field is 15 Mon (V=4.7).
This cluster-nebula combination was discovered by William Herschel. The open cluster, later logged as Collinder 112, was found by him on the night of 18 January 1784. The associated nebulosity was only noted on 26 December 1785. Herschel recorded that 'some pretty bright stars 7' or 8' south-preceding 15th Monocerotis are involved in extremely faint milky nebulosity which loses itself imperceptibly.'
The famous Cone Nebula lies to the south of the cluster.

nothing more to see. please move along.


Warning: Unknown: open(/home/content/96/12521296/tmp/sess_menvakb8b41bneri673appahd7, O_RDWR) failed: No such file or directory (2) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct () in Unknown on line 0