NGC 6357 (Lobster Nebula) ( Dean Carr )

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NGC 6357 (Lobster Nebula)

Imaging Telescopes Or Lenses: Orion EON 130mm APO
Imaging Cameras: QSI 683wsg-8
Mounts: Skywatcher EQ8
Filters: Astronomik OIII 6nm 1.25" · Astronomik SII 6nm 1.25" · Astronomik Ha 6nm 1.25"
Software: Simulation Curriculum Starry Night Pro Plus · PixInsight · Sequence Generator Pro · Simulation Curriculum Sky Safari Plus
Guiding Telescopes Or Lenses: Orion EON 130mm APO

Dates:: June 24, 2017
Frames:: Astronomik Ha 6nm 1.25": 39×900″(9h 45′) -20°C bin 1×1
Astronomik OIII 6nm 1.25": 22×1200″(7h 20′) -20°C bin 1×1
Astronomik SII 6nm 1.25": 21×1200″(7h) -20°C bin 1×1
Integration:: 24h 5′
Avg. Moon age:: 0.45 days
Avg. Moon phase:: 0.23%

RA center: 17h24m59s.99

DEC center: -34°08′40″.6

Pixel scale: 1.016 arcsec/pixel

Orientation: 178.704 degrees

Field radius: 0.696 degrees

More info:Open

Resolution: 3954x2953

File size: 4.1 MB

Locations: Wiruna, Ilford, New South Wales, Australia

Data source: Traveller

NGC 6357 is a diffuse nebula spanning about 400 light years, approximately 6,000-8,000 light years from Earth, and can be seen in the constellation Scorpius. It is also known as the ‘Lobster Nebula’ or the ‘War and Peace Nebula’.

The central blue region in this image is home to Pismis 24, a star cluster that includes some of the most massive stars in our galaxy, some hundreds of times more massive than our own sun.

The picture was formed by combing individual images taken with three different filters that allow imaging of ionised Hydrogen (Ha), Oxygen (OIII) and Sulphur (SII). It was processed in PixInsight using the Hubble Space Telescope palette (Red = SII, Green = Ha, Blue = OIII). The final image was re-sampled by 120% for aesthetic reasons.

Original
Final
H

	Distinct awarded users	Total awarded images
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Deep sky
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Star trails
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
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Mix of multiple sources
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Unknown

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Status	Advanced success
Started	...
Astrometry.net job	2140705
PixInsight job	K5YBP412Z3CXUACNXWUYFRMWDI73MQDJ
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	17h24m59s.99
RA (top/left)	17h22m20s.11
RA (top/right)	17h27m44s.92
RA (bottom/right)	17h27m37s.87
RA (bottom/left)	17h22m16s.42

Dec (center)	-34°08′40″.6
Dec (top/left)	-34°34′17″.4
Dec (top/right)	-34°32′46″.6
Dec (bottom/right)	-33°42′50″.8
Dec (bottom/left)	-33°44′20″.6

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NGC 6357 (Lobster Nebula)

NGC 6357 (Lobster Nebula)

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NGC 6357 (Lobster Nebula)

NGC 6357 (Lobster Nebula)

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