RCW 105 Gum 51 - A faint Emission Nebula in Norma (Steeve Body)

Celestial hemisphere: Southern · Constellation: Norma (Nor) · Contains: HD144198 · HD144796 · HD144813 · HD144828 · HD144900 · HD144918 · HD144969 · HD144970 · HD145038 · HD145106 · HD145282 · HD145360 · HD145395 · HD145410 · HD145487 · HD330325 · HD330326 · HD330384 · HD330385 · HD330387 · HD330388 · HD330428 · HD330429 · HD330430 · HD330445 · HD330446 · HD330447 · HD330448 · HD330449 · HD330450 · And 1 more.

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RCW 105 Gum 51 - A faint Emission Nebula in Norma

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RCW 105 Gum 51 - A faint Emission Nebula in Norma

A little while back now I set out to snap a shot of something a little off the beaten track this time, something that doesn't usually get the limelight. So, let me introduce you to RCW 105, or as named Gum 51. It's a pretty but sort of under-the-radar, emission nebula hanging out in the constellation Norma.

You won't stumble across too many pictures of this object online or on Astrobin, which is kinda surprising given how beautiful it looks.

Peering into its cosmic makeup, there's a healthy dash of Ha, a pinch of Sii, and just a smidge of Oiii. These Oiii and Sii emissions may be faint, but they sure do contribute to the nebula's beauty in processing.

Now, the Oiii might be playing hard to get, but when it's mixed into the SHO palette, it serves up this really neat color contrast that evels up the nebula's charm. Sure, it's not adding tons to the detail of the image, but it's definitely worth acquiring.

So, when I was getting down to the image processing, I decided to let the Hydrogen-alpha (Ha) emission take the wheel as for the luminance layer for details. I hope you appreciate the end result of this often overlooked nebula, a nod to the under appreciated gems of the cosmos.

tags: RCW105 GUM51

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ZWO ASI1600MM/QHY163M
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Status	Advanced success
Started	...
Astrometry.net job	7862392
PixInsight job	419ZOD7TDZ573R3SWOMMVUGTQCMTHF2Z
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h10m01s.10
RA (top/left)	16h13m43s.39
RA (top/right)	16h06m20s.83
RA (bottom/right)	16h06m14s.82
RA (bottom/left)	16h13m45s.17

Dec (center)	-49°06′08″.7
Dec (top/left)	-48°39′20″.9
Dec (top/right)	-48°38′54″.9
Dec (bottom/right)	-49°32′28″.7
Dec (bottom/left)	-49°32′55″.8

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RCW 105 Gum 51 - A faint Emission Nebula in Norma

RCW 105 Gum 51 - A faint Emission Nebula in Norma

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RCW 105 Gum 51 - A faint Emission Nebula in Norma

RCW 105 Gum 51 - A faint Emission Nebula in Norma

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