Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  M 17  ·  NGC 6618  ·  Omega nebula
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Messier 17 - Omega Nebula, Israel Barbosa de Brito
Messier 17 - Omega Nebula
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Messier 17 - Omega Nebula

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Messier 17 - Omega Nebula, Israel Barbosa de Brito
Messier 17 - Omega Nebula
Powered byPixInsight

Messier 17 - Omega Nebula

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Description

The Omega Nebula is an H II region in the constellation Sagittarius. It is located in the rich starfields of the Sagittarius area of the Milky Way. It is between 5,000 and 6,000 light-years from Earth and 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.

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

Designations M17, NGC 6618, Swan Nebula, Sharpless 45, RCW 160, Gum 81

Source: Wikipedia

This image was captured during the 7th Brazilian Meeting of Astrophotography.

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ISO 800, total exposure time of 12 min (3 subs), only lights.

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Messier 17 - Omega Nebula, Israel Barbosa de Brito