Trapezium (M42 - Orion) (Gary Imm)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 41 the01 Ori · 43 the02 Ori · De Mairan's nebula · Great Orion Nebula · M 42 · M 43 · Mairan's Nebula · NGC 1976 · NGC 1982 · Orion Nebula · Sh2-281 · The star θ1Ori · The star θ2Ori

Trapezium (M42 - Orion)

This famous open cluster was discovered by Galileo in 1617. It is located 1400 light years away and is, naturally, in the Orion constellation. It is at a declination of -5 degrees. The stars span about 30 arc-seconds in our apparent view, which corresponds to an actual span of about 0.2 light years.

The stars of the Trapezium are labelled in the mouseover. The four main stars of the Trapezium, starting at 12 o’clock and proceeding clockwise, are C, D, B and A. E (small orange star) is visible just below A, and F (small blue star) is visible just above and right of C. I struggle to see these 2 stars (E and F) visually in my 130mm scope. Other stars that are part of the Trapezium are G, H1, H2, and I, all barely visible in the image.

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C

C

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Status	Advanced success
Started	...
Astrometry.net job	4067530
PixInsight job	AHP0LDIQ3BGXHDVAQ611D59U9PTNG6OC
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h35m16s.272
RA (top/left)	05h34m36s.503
RA (top/right)	05h36m00s.315
RA (bottom/right)	05h35m56s.200
RA (bottom/left)	05h34m32s.243

Dec (center)	-05°23′17″.17
Dec (top/left)	-05°31′44″.16
Dec (top/right)	-05°30′18″.11
Dec (bottom/right)	-05°14′49″.92
Dec (bottom/left)	-05°16′16″.10

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Trapezium (M42 - Orion)

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