Tag Archives: Swan Nebula

The Omega Nebula, or 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 was discovered by Philippe Loys de Chéseaux in 1745. Charles Messier catalogued it in 1764. It is located in the rich starfields of the Sagittarius area of the Milky Way.

Imaging telescopes or lenses: GSO RC8

Imaging cameras: Magzero MZ9M

Mounts: Mountain Instruments MI-250

Guiding telescopes or lenses: GSO RC8

Software: PixInsight

Filters: SII, Baader Planetarium OIII, Baader Planetarium H-Alpha Filter

Accessories: QHYCCD Filter Wheel QHY 2″

Resolution: 1600×1333

Dates: June 27, 2011, June 28, 2011, June 29, 2011

Frames:
Baader Planetarium H-Alpha Filter: 24×300″ -30C bin 1×1
Baader Planetarium OIII: 22×360″ -30C bin 1×1
SII: 22×300″ -30C bin 1×1

Integration: 6.0 hours

Avg. Moon age: 26.23 days

Avg. Moon phase: 12.31%

RA center: 275.260 degrees

DEC center: -16.171 degrees

Pixel scale: 1.206 arcsec/pixel

Orientation: 88.760 degrees

Field radius: 0.349 degrees

Author: OsservatorioMonteSanGiovanni

Omega Nebula in Sagittarius

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 was discovered by Philippe Loys de Chéseaux in 1745. Charles Messier catalogued it in 1764. 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 ofinterstellar 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.

Imaging telescopes or lenses: GSO Newton 12″ f/4
Imaging cameras: ATIK 11000m
Mounts: Skywatcher EQ8
Guiding telescopes or lenses: Orion 50 mm mini guider
Guiding cameras: Orion Star Shoot Planetary Imager & Autoguider
Focal reducers: ASA Wynne 3″ Corrector 0.95x
Software: photoshop, Startools 1.3.5, CCDStack, Maxim DL
Filters: Orion 2” LRGB filter set, Baader Ha 2″
Dates: June 6, 2014
Frames:
Orion 2” LRGB filter set: 9×300″ -15C bin 2×2
Baader Ha 2″: 4×600″ -15C bin 1×1
Integration: 1.4 hours

Author: Paul Storey
AstroPhotography of the day by SPONLI 18 July 2014

NGC 6618: the Swan Nebula

The Omega Nebula, also known as the Swan Nebula, Checkmark Nebula, Lobster Nebula, and the Horseshoe Nebula (catalogued asMessier 17 or M17 and as NGC 6618) is an H II region in the constellation Sagittarius. It was discovered by Philippe Loys de Chéseaux in 1745.Charles Messier catalogued it in 1764. 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 matterof 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.

Imaging telescopes or lenses: Celestron C8 SCT
Imaging cameras: Nikon D5000
Mounts: Skywatcher HEQ5 Pro Goto
Guiding telescopes or lenses: Orion ShortTube 80
Guiding cameras: QHYCCD QHY5L-II Mono
Focal reducers: Celestron f/6.3 Focal Reducer/Corrector
Software: DeepSkyStacker, photoshop
Dates: July 7, 2013
Frames: 20×60″
Integration: 0.3 hours

Autor: Leandro Fornaziero

AstroPhotography of the day by SPONLI

26 February 2014

We select the best works of amateur astrophotographers with details of equipment, shooting processing etc.

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