Vela SNR - Twin Crescents & Bypass (Gary Imm)

Celestial hemisphere: Southern · Constellation: Vela (Vel) · Contains: NGC 2659 · g Vel

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Vela SNR - Twin Crescents & Bypass

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Vela SNR - Twin Crescents & Bypass

This object captures one of the dimmer portions of the Vela supernova remnant. This SNR is 8 degrees wide and is located 800 light years away in the southern constellation of Vela at a declination of -45 degrees. It is estimated that the supernova exploded approximately 12,000 years ago. The Vela supernova remnant overlaps the Gum supernova remnant, and the two are among the largest and brightest features in the X-ray sky. The Vela SNR is one of the closest supernova remnants to earth.

The region captured in this image has the nickname of Twin Crescents and the Bypass, as described in the book, Imaging the Southern Sky. The Twin Crescents are obvious, while the Bypass refers to the fairly straight gas front structure which can be seen throughout the entire nebula and is referred to overall as the "Highway". The weak strength of these emissions, combined with the low declination of the target from my viewing site, makes this a tough object for me to capture.

NGC 2653 is the star cluster in the center of the image. The cluster is located 5600 light years away, far past the SNR, although it visually looks as if it is in front of the SNR. The cluster consists of over 1000 stars (most not visible here) and is about 25 light years across.

Narrowband imaging
Takahashi Refractors
ZWO ASI183/QHY183
Unique or Unusal Deep Sky Targets
The refractors!
Cloudy Nights

SNR
Vela SNR

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Status	Advanced success
Started	...
Astrometry.net job	3102961
PixInsight job	QWCCZS2LSTBXLZUX89JKCPWAFQQ2TU48
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	08h44m24s.40
RA (top/left)	08h50m40s.60
RA (top/right)	08h38m18s.97
RA (bottom/right)	08h37m57s.13
RA (bottom/left)	08h50m40s.28

Dec (center)	-44°57′24″.9
Dec (top/left)	-44°07′44″.8
Dec (top/right)	-44°05′08″.5
Dec (bottom/right)	-45°45′47″.4
Dec (bottom/left)	-45°48′27″.8

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Vela SNR - Twin Crescents & Bypass

Vela SNR - Twin Crescents & Bypass

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Vela SNR - Twin Crescents & Bypass

Vela SNR - Twin Crescents & Bypass

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