photo sharing and upload picture albums photo forums search pictures popular photos photography help login
Kfir Simon | all galleries >> narrowband > The Swan nebula
previous | next
The Swan nebula

The Swan nebula

The Omega Nebula, also known as the Swan Nebula, Checkmark Nebula, Lobster Nebula, and the Horseshoe Nebula
(catalogued as Messier 17 or M17 and as NGC 6618) is an H II region in the constellation Sagittarius. It is located in the rich starfields of the Sagittarius area of the Milky Way.
The Omega Nebula is between 5,000 and 6,000 light-years from Earth and it spans some 15 light-years in diameter.
The cloud of interstellar matter of which this nebula is a part is roughly 40 light-years in diameter and has a mass of 30,000 solar masses.
The total mass of the Omega Nebula is an estimated 800 solar masses.
It is considered one of the brightest and most massive star-forming regions of our galaxy.
Its local geometry is similar to the Orion Nebula except that it is viewed edge-on rather than face-on.
An open cluster of 35 stars lies embedded in the nebulosity and causes the gases of the nebula to shine due to radiation from these hot, young stars.

Imaged with the 16" f3.75 Dream Astrograph.
Apogee Alta U-16M camera.
R-HA-O3 image (mapped as RGB)
RGB for the stars
Ha - 30 min ,O3 - 30 min
RGB 10 minutes each

(Total of 1:30 HRS)

Imaged from Tivoli farm in Namibia June 2012.

Apogee USB/Net
hide exif
Full EXIF Info
Date/Time13-Sep-2012 12:32:12
MakeApogee USB/Net
Model
Flash UsedNo
Focal Length
Exposure Time
Aperture
ISO Equivalent
Exposure Bias
White Balance
Metering Mode
JPEG Quality
Exposure Program
Focus Distance

other sizes: small medium large original
share
Ari Cartun 12-Mar-2014 19:15
Yasher Koach on the Swan Nebula picture, which i saw in Astronomy.
it looked to me like a ghost lion, and i share your leonine name.

Ari Cartun
Type your message and click Add Comment
It is best to login or register first but you may post as a guest.
Enter an optional name and contact email address. Name
Name Email
help private comment