The Great Orion Nebula    M 42                                     Click on photo to return to 'Diffuse Nebulae'             Home

M 42    NGC 1976    Great Nebula in Orion, Orion Nebula

Other description: Nebula.
Constellation:  Ori
Dreyer description: A magnificent (or otherwise interesting) object! Theta1 Ori and the great nebula; = M42.
Magnitude:  4.0
RA: 05h 35m 24.0s  Dec: -05°27'00"  (Epoch 2000)
Rise: 17:21  Transit: 23:05  Set: 04:53
Size:66.0'

SEDS description;
The Orion Nebula is famous for a number of reasons. It is the nearest bright nebula to us and can be seen with the naked eye. Its brightness led to it being the first nebula ever photographed (in 1882) and its proximity (1500 light years) means that we know more about it than any other star-forming region. It is also in a very active stage of star formation and it is perfectly placed for us to explore the intimate details of the birth of stars.

The inner regions are glowing mainly in the red light of excited hydrogen, which together with some green emission from oxygen give the centre of the nebula a yellowish colour. The energy for this spectacular display comes from the small cluster of stars in the brightest part of the nebula.


Photo Specifications:

      TELESCOPE:  8" Newtonian  F/5
            CAMERA:  'SBIG' ST-8XE & CFW8 color filter wheel
CAMERA TEMP:  Temp. = -19 C
                   DATE:  3/11/07

Filter
Exposure time
Number of exposures
Binning
Luminance
100 sec
20
1x1
Red
200 sec
20
1x1
Green
200 sec
20
1x1
Blue
320 sec
20
1x1
Other








Processing;    MaxIm, DDP,  align, color combine;