Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  Checkmark Nebula  ·  IC 4706  ·  IC 4707  ·  Lobster Nebula  ·  M 17  ·  NGC 6596  ·  NGC 6618  ·  Swan Nebula  ·  omega Nebula
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M17 The Swan Nebula, Chuck Manges
M17 The Swan Nebula
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M17 The Swan Nebula

Getting plate-solving status, please wait...
M17 The Swan Nebula, Chuck Manges
M17 The Swan Nebula
Powered byPixInsight

M17 The Swan Nebula

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Description

M17 The Swan Nebula in HST Palette

M17 The Swan Nebula(NGC 6618) is also known as the Omega, Checkmark or Horseshoe Nebula. It is an HII region in the constellation of Sagittarius, 5000-6000 light years away.

I used 2 different setups to capture this:

11" Celestron Edge HD w/Hyperstar V4 (setup#1)

QHY163M

HDX-110

HA:30x120 sec (Red/50% blend)

OIII:30x120 sec (Blue/Blue 50% blend)

HA+OIII- as 50% Lum

Setup#2

RGB:17x300 sec(from widefield image): flic.kr/p/2jyPSEL

Center (RA, Dec)275.215, -16.195)

Center (RA, hms):18h 20m 51.654s

Center (Dec, dms):-16° 11' 42.834"

Size:1.75 x 1.31 deg

Radius:1.091 deg

Pixel scale:1.45 arcsec/pixel

Orientation:Up is 172 degrees E of N

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