* Astronomy

Members Login
Username 
 
Password 
    Remember Me  
Post Info TOPIC: NGC 1807


L

Posts: 131433
Date:
NGC 1807
Permalink  
 


NGC 1807 (als OCL 462, Lund 154, Mel 29 and Cr 59) is a magnitude +7.0 asterism located in the constellation Taurus, near the border with Orion, about 8° east of the star Aldebaran.

The asterism consists of a chain of 6-7 yellow-orange stars with magnitudes between 8.9 and 10.2 lying a few arcminutes away from the cluster NGC 1817. The chain of stars are visible with binoculars, but a small telescope will reveal twice as many stars.
NGC 1807 had long been considered an open cluster, but recent studies indicate that it consists of random arrangement of stars unrelated to each other.
The best time to observe the asterism is in the evening is between October and March.

The asterism was discovered by the British astronomer John Herschel at Windsor Road, Slough, using a 47.5 cm (18.7 inch) reflecting telescope that belonged to his father, William Herschel, on the 25th January 1832. 

Right Ascension 05h 10m 46.0s, Declination +16° 30' 48"

See more

 



__________________
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.



Create your own FREE Forum
Report Abuse
Powered by ActiveBoard