RCW 58 - Ring Nebula in Carina (HRGB) (James Tickner)

Celestial hemisphere: Southern · Constellation: Carina (Car) · Contains: HD310419 · HD310420 · HD96265 · HD96309 · HD96448 · HD96548

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RCW 58 - Ring Nebula in Carina (HRGB)

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RCW 58 - Ring Nebula in Carina (HRGB)

RCW 58 (from the Rodgers, Campbell and Whiteoak catalogue of galactic HII regions) is a beautifully detailed ring nebula in the southern constellation of Carina. The central star HD96548 (or WR40) is a massive Wolf-Rayet star that ejects material at a high rate. The intense radiation pressure from the hot and extremely luminous central star leads to the elaborate structures that can be observed.

I came across this object by accident whilst imaging various dark nebula in the vicinity. Using an unmodified Nikon camera, the hydrogen emission was barely visible, but it was enough to prompt a repeat visit using a monochrome camera and H-alpha filter.

For an attractive object, RCW 58 seems to have been relatively rarely imaged on Astrobin. Whilst having a relatively low surface-brightness, it is large enough (8 x 5') to be rewarding target even with a small 'scope. I did try for some OIII data as other images show a nice oxygen outer shell, but with my setup even after a full night of imaging this was barely perceptible and hasn't been included.

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Unknown

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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Status	Advanced success
Started	...
Astrometry.net job	7148868
PixInsight job	XA810MZ9KMIZSLFZ25F1XFBD61PKRLOU
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	11h06m13s.528
RA (top/left)	11h09m13s.563
RA (top/right)	11h06m24s.749
RA (bottom/right)	11h03m15s.856
RA (bottom/left)	11h06m02s.208

Dec (center)	-65°29′32″.15
Dec (top/left)	-65°39′35″.60
Dec (top/right)	-65°08′25″.30
Dec (bottom/right)	-65°19′15″.47
Dec (bottom/left)	-65°50′38″.95

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RCW 58 - Ring Nebula in Carina (HRGB)

RCW 58 - Ring Nebula in Carina (HRGB)

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RCW 58 - Ring Nebula in Carina (HRGB)

RCW 58 - Ring Nebula in Carina (HRGB)

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