Michael Purcell's Astrophotography

[ Previous | Top | Thumbnails | MasterList | Next ]

NGC 5139, Omega Centauri

(Click on the picture above to go to the main image.)

Omega Centauri is the largest and brightest globular star cluster in the Milky Way. It contains about 2 million stars, more than twice that of M13, the largest globular in the Northern sky. This object is actually much larger than the field of view in the CCD chip. This is just the core of the cluster.

I took this picture at Grove Creek Observatory.

Constellation	Centaurus
Right Asc (hh:mm:ss)	13:26:48
Declination(deg:sec)	-47:29
Magnitude	2.5
Size (ArcMin)	50x50
Tirion SkyAtlas 2000	#21
Uranometria 2000	#403

CCD Camera Parameters

ST-7E Compressed Image
File_version = 3
Data_version = 1
Exposure = 10 minutes
Focal_length = 98.000
Aperture = 141.3700
Response_factor = 2000.000
Note = Image taken 03/29/00 at 21:52:20
Background = 1000
Range = 10000
Height = 510
Width = 765
Date = 03/29/00
Time = 21:52:20
Exposure_state = 356
Temperature = -14.81 C
Number_exposures = 1
Each_exposure = 10 minutes
History = d
Observer = Michael Purcell at Grove Creek Observatory
X_pixel_size = 0.0090
Y_pixel_size = 0.0090
Pedestal = 0
E_gain = 2.30
User_1 = CCDOPS for DOS Version 3.84
User_4 = Y2KYear = 2000
Filter = None
Readout_mode = 0
Track_time = 100
Sat_level = 65535

This page last updated on September 2, 2000 Contact Michael Purcell