Lower's Nebula SH2-261 in Orion (Steve Argereow)

Celestial hemisphere: Northern · Constellation: Orion (Ori) · Contains: 67 nu. Ori · 69 f01 Ori · LBN 862 · LBN 863 · LBN 864 · LDN 1586 · LDN 1587 · Sh2-261 · The star 69Ori · The star νOri

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Lower's Nebula SH2-261 in Orion

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Lower's Nebula SH2-261 in Orion

Sh2-261 (Sharpless 261) also known as Lower’s Nebula has only been discovered in 1939. The Lowers (father and son) were amateur astronomers and found this nebula on one of their photgraphic plates taken in 1939.It is a relatively faint region emitting doubly ionized hydrogen, the nebula has an apparent diameter of about 50 arcminutes. There is no accurate measurement as to the distance of this nebula, although best estimation is about 3.300 light years.

Information Credits: Corius Astronomy

Telescope: Meade 6000 80mm APO Refractor f/6.0
Meade X0.8 Reducer f/4.8
X0.63 Reducer f/6.3

Mount IOptron CEM40

Camera ZWOASI6200MC-Pro Temp -10C, Binning 1 x 1, Gain 100 Offset 50
ZWO-EFW

56 X 300 Second Exposures W/Optolong L-Extreme Filter (6nm)
30 Dark Frames
Total Integration Time: 4 Hours 40 Minutes
Acquisition with SharpCap
Stacked with Astro Pixel Processor
Guiding PHD2
Processed with Astra Image

Photo taken from Seven Lakes, NC Bortle 4.5

Original
D
Final
E

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Status	Advanced success
Started	...
Astrometry.net job	5435022
PixInsight job	DPRG5PXIAMX1M2APR22P52Z01FVN0DM5
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h09m19s.31
RA (top/left)	06h04m48s.43
RA (top/right)	06h05m46s.89
RA (bottom/right)	06h13m48s.14
RA (bottom/left)	06h12m54s.50

Dec (center)	+15°45′15″.4
Dec (top/left)	+16°41′42″.4
Dec (top/right)	+14°36′07″.6
Dec (bottom/right)	+14°48′34″.5
Dec (bottom/left)	+16°54′15″.7

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Lower's Nebula SH2-261 in Orion

Lower's Nebula SH2-261 in Orion

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Lower's Nebula SH2-261 in Orion

Lower's Nebula SH2-261 in Orion

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