Michael Purcell's Astrophotography

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M17: The Omega Nebula

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

M17 is a bright diffuse nebula that goes under multiple names: The Omega Nebula, The Swan Nebula, or the Horseshoe Nebula. According to Burnam, the bright base of the "swan" is 12 light years across.

I took this picture in New Mexico. It is a new image taken during my 1999 tip to NM.


Constellation Sagittarius
Right Asc (hh:mm:ss) 18:20:48
Declination(deg:sec) -16:11
Magnitude 7
Size (ArcMin) 46x37
Tirion SkyAtlas 2000 #16
Uranometria 2000 #294

CCD Camera Parameters

ST-7 Compressed Image
File_version = 3
Data_version = 1
Exposure = 5 minutes
Focal_length = 80.000
Aperture = 43.0000
Response_factor = 2000.000
Note = Image taken 04/12/99 at 04:31:41
Background = 177
Range = 950
Height = 510
Width = 765
Date = 04/12/99
Time = 04:31:41
Exposure_state = 356
Temperature = -19.98 C
Number_exposures = 1
Each_exposure = 5 minutes
History = 0
Observer = Michael Purcell
X_pixel_size = 0.0090
Y_pixel_size = 0.0090
Pedestal = 0
E_gain = 2.30
User_1 = CCDOPS for DOS Version 3.78
Filter = None
Readout_mode = 0
Track_time = 1 second
Sat_level = 65535

This page last updated on June 9, 2000 Contact Michael Purcell

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