Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  Checkmark Nebula  ·  HD168163  ·  HD168164  ·  HD168276  ·  HD168302  ·  HD168415  ·  HD168446  ·  HD168447  ·  HD168462  ·  HD168521  ·  HD168569  ·  HD168585  ·  HD168607  ·  HD168625  ·  HD168700  ·  HD168701  ·  HD168816  ·  HD168857  ·  HD168859  ·  HD168934  ·  IC 4706  ·  IC 4707  ·  LBN 60  ·  LDN 359  ·  Lobster Nebula  ·  M 17  ·  NGC 6618  ·  Sh2-45  ·  Swan Nebula  ·  omega Nebula
Messier 17 – The Omega Nebula, Tom Wildoner
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Messier 17 – The Omega Nebula

Messier 17 – The Omega Nebula, Tom Wildoner
Powered byPixInsight

Messier 17 – The Omega Nebula

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Description

The Omega Nebula (Swan Nebula, M17, NGC 6618) is an H II region between 5000 and 6000 light years away in the constellation Sagittarius. An open star cluster, NGC 6618, lies embedded in the nebulosity and, due to radiation, causes the gasses of the nebula to shine.

Observation data: J2000 epoch
Right ascension: 18h 20m 26s
Declination: −16° 10′ 36″
Distance: 5,000–6,000 ly
Apparent magnitude (V): 6.0
Apparent dimensions (V): 11 arcmins
Constellation: Sagittarius

Tech Specs: Sky-Watcher Esprit 120ED Telescope,  ZWO AS2600mc-Pro running at 0C, Sky-Watcher EQ6R-Pro mount, Optolong L-eXtreme filter (2”), 12 x 300 second exposures, guided using a ZWO 30mm f/4 mini guide scope and ZWO 120 Mini, focus with a ZWO EAF, controlled with a ZWO ASIAir Pro. Processed using PixInsight and DSS. Image Date: August 24, 2022. Location: GHAAS Dark Site, Eckley, PA, USA (Bortle Class 4).

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Messier 17 – The Omega Nebula, Tom Wildoner

In these public groups

Northeast Imagers
Messier Objects