SH2-261 (Lower's Nebula) SHO (Almos Balasi)

Celestial hemisphere: Northern · Constellation: Orion (Ori) · Contains: LBN 862 · LBN 863 · LBN 864 · LDN 1587 · PGC 136275 · PGC 3097154 · PGC 3097156 · Sh2-261

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SH2-261 (Lower's Nebula) SHO

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SH2-261 (Lower's Nebula) SHO

Sh 2-261 is a HII region in the northern part os the constellation Orion. It is often called Lower's nebula because it appears on a photographic plate taken by the Harold and Charles Lower in 1939. The distance of this nebula is not known with certainty, but estimated to be about 3000 light years away.

When photographed in RGB, the Ha region can be seen nicely, but it does not show too many details, as it is a rather faint nebula. On the other hand, with ultra-narrowband filters, the details are very nice with all three filters, giving you the opportunity to make very spectacular HOO and SHO false color photos. But we can use it in combination with RGB to highlight its colours better.

This image is result of the SHO combination with RGB stars.

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Description: SHO

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Title: HOO

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	9193283
PixInsight job	Q6TCOP96MFM3LV2V8D0ZJYU0P41MRUSV
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h09m33s.90
RA (top/left)	06h05m37s.82
RA (top/right)	06h11m44s.89
RA (bottom/right)	06h13m30s.11
RA (bottom/left)	06h07m21s.63

Dec (center)	+15°40′18″.9
Dec (top/left)	+15°27′09″.8
Dec (top/right)	+14°51′22″.3
Dec (bottom/right)	+15°53′13″.1
Dec (bottom/left)	+16°29′14″.9

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SH2-261 (Lower's Nebula) SHO

SH2-261 (Lower's Nebula) SHO

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SH2-261 (Lower's Nebula) SHO

SH2-261 (Lower's Nebula) SHO

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