Planetary Nebula Abell 31 (Dave Boddington)

Celestial hemisphere: Northern · Constellation: Cancer (Cnc) · Contains: HD75880 · HD76037 · IC 523 · PK219+31.1 · Sh2-290

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Planetary Nebula Abell 31

Revision title: Reprocess using BXT, SXT and NXT

Powered byPixInsight

Planetary Nebula Abell 31

Revision title: Reprocess using BXT, SXT and NXT

Abell 31 (also known as Sh2-290) is a large (angular extent 17 arc min) dim planetary nebula in Cancer. It is about 2000 light years distant and about 10 light years in diameter. The central star is a tiny white dwarf 4 times the size of earth and with a surface temperature of 85000 deg C and is believed to have started dying about 130000 years ago. The nebula is moving through space at a relatively high speed. The direction of motion being toward the right of the image. This side is sharply defined by a wide bow shock where the nebular gas and dust is compressed by the interaction with the surrounding interstellar medium. Gas heading in the opposite direction is moving downwind and remains relatively untouched, making this boundary of the nebula rather diffuse. (source/credit Anne's Astronomy News). Imaged in late March through Esprit150SX46 2hrs each RGB plus 11 hrs Ha and Esprit100ASI1600 5hrs Ha and 10hrs Oiii. Processed in Pixinsight and Photoshop with Topaz de-noise used on the extremely dim ha and Oiii.

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Title: Abell 31

Description: More aggressive stretch and noise reduction

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Title: Reprocess using BXT, SXT and NXT

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Narrowband imaging
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Status	Advanced success
Started	...
Astrometry.net job	9471116
PixInsight job	J8JX28GI05TYKFL83KLF019MK154YCQY
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	08h54m10s.27
RA (top/left)	08h52m28s.86
RA (top/right)	08h52m29s.63
RA (bottom/right)	08h55m51s.18
RA (bottom/left)	08h55m51s.19

Dec (center)	+08°53′56″.8
Dec (top/left)	+09°24′35″.3
Dec (top/right)	+08°23′12″.6
Dec (bottom/right)	+08°23′16″.5
Dec (bottom/left)	+09°24′39″.3

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Planetary Nebula Abell 31

Revision title: Reprocess using BXT, SXT and NXT

Planetary Nebula Abell 31

Revision title: Reprocess using BXT, SXT and NXT

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Planetary Nebula Abell 31

Revision title: Reprocess using BXT, SXT and NXT

Planetary Nebula Abell 31

Revision title: Reprocess using BXT, SXT and NXT

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