Simeis 147 (Graham Roberts)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: LBN 822 · Sh2-240

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Simeis 147

Link: https://watchthisspaceman.wordpress.com/2022/01/25/cosmic-spaghetti/

Powered byPixInsight

Simeis 147

Link: https://watchthisspaceman.wordpress.com/2022/01/25/cosmic-spaghetti/

Long on my to-do list has been the spectacular Simeis 147, also known as SH2-240 or the Spaghetti Nebula. A supernova remnant (SNR) spanning the border of the Taurus and Auriga constellations, which despite its large size is one of the faintest objects in the night sky and therefore not an easy astrophotography target. Moreover, with my equipment’s field-of-view the large size of the SNR would require a mosaic to fully image, which is generally out of the question here at Fairvale Observatory due the lack of clear skies that prevail here[i]. [/i]Therefore, for the moment I’ve concentrated on a close-up area of the southern lobe, imaged in HOO narrowband to highlight the beautiful complexity of this cosmic cataclysm that is the product of a massive stellar explosion that took place some 40,000 years ago.

Total Integration 12 hours 10 mins:
39 x 600 secs Ha
234 x 600 secs OIII
Gain 139 Offset 21

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Status	Advanced success
Started	...
Astrometry.net job	5432592
PixInsight job	VANXTOJRUGDQ0XPN0Q0X67ZBZZ8J5ECR
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h41m28s.65
RA (top/left)	05h37m08s.48
RA (top/right)	05h37m10s.51
RA (bottom/right)	05h45m43s.17
RA (bottom/left)	05h45m53s.26

Dec (center)	+28°01′50″.2
Dec (top/left)	+29°18′10″.2
Dec (top/right)	+26°45′45″.3
Dec (bottom/right)	+26°45′04″.1
Dec (bottom/left)	+29°17′27″.9

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