My Astrophotography – Messier 17 (Swan Nebula)

Messier 17 (Swan / Omega Nebula)

• M17 (Swan Nebula) is one of the brightest and most massive star-forming regions in the Milky Way.
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• People also call it the Horseshoe Nebula, Lobster Nebula, and Checkmark Nebula because of its distinct shape.
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• Ultraviolet light from hot young stars inside the gas cloud causes the hydrogen to glow red.
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• Region in the summer Milky Way.

• Object Name
  M17

• Object Type
  Diffuse Emission Nebula

• Constellation
  Sagittarius

• Magnitude
  +7.0

• Distance
  5,500 light-years

• Age
  1 million years

Telescope:

Mount:

Accessories:

Sky-Watcher Esprint 80ED Triplet

Sky-Watcher AZ-EQ6 GT

ZWO ASIair Plus / PixInsight

Camera:

Guiding:

Filter:

ZWO ASI585MC Pro cooling

ZWO ASI1200MM

2″ Optolong eXtreme

• Date:
  Friday 11th September 2026
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• Time:
  23:45 / 11.45 pm (BST)
  

• Moonlit:
  Waxing Crescent 0.8 days old
  Magnitude: -5
  Moonlit: 1%

• Total:
  180’s x 13 subs = 39 minutes
  
  (After 39 minutes M17 disappeared behind the trees.)

Object :-

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M17

NGC 6618 / Swan Nebula / Omega Nebula /
Horseshoe Nebula / Lobster Nebula

Diffuse Emission Nebula

+7.0

5,500 light years / 15 light years in diameter.

Sgr (Sagittarius / The Archer)

18h 20m 07s

-16° 11′ 01″

Enlarge on click the map.

(Click the map above for a large view.)