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M17 - TSA102S
M17 - Swan Nebula
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The Omega Nebula (also known as the
Swan Nebula, Messier 17 or 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. Earth's distance to the
Omega Nebula is between 5,000 and 6,000
light-years 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. The total mass of the
Omega Nebula is an estimated 800 solar masses.
A cluster of 35 stars lies
embedded in the nebulosity and it is these hot,
young stars' radiation that excites the gases in
the nebula to shine.
(From Wikipedia, the free encyclopaedia)
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Exposure Data
 | Instrument: Takahashi TSA102S (TOA Reducer/
Flattener) |
| F/stop: 5.6 |
| Exposure: |
| Camera: Hutech Canon EOS 40D DSLR |
| Sensitivity: ISO 1600 |
| Date: August 28, 2008 |
| Exposure start: |
| Location: Albury, New South Wales |
| Autoguider: None |
| Enhancement: Registar 1.0, Adobe Photoshop CS2,
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| Notes: Piggy backed on LX200 8" GPS, using
Meade Field de-rotator |
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Public Viewing
Nights |
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Just to let
everyone know, public viewing nights are held
every first Friday of the month. Clear or cloudy
nights the public viewing night goes ahead.
Members man a number of telescopes of various
sizes and types, and for those nights where the
sky is cloudy, extended astronomical presentations
are presented in the MPAS Viewing Centre.
So please come
along and enjoy our nights sky.
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