3C 58 (SN 1181) in Cassiopeia

3C 58 is a small obscure super­nova whose optic­al com­pon­ent was dis­covered in 1977 by Sid­ney van den Bergh on long exposed plates from the 5m reflect­or at Mt. Palo­mar. It is the rem­nant of SN 1181 mak­ing it young­er than the Crab Neb­ula but older than Cas­si­opeia A. The size is about 6x10 arcminutes and required long Ha and OIII exposures.

The small plan­et­ary neb­ula to the right of the image is G130.4+03.1 (PN K 3–92) dis­covered by Kohoutek 1972. North is up in this image.

The ori­gin­al paper about the dis­cov­ery of the optic­al com­pon­ent of 3C 58 can be found here.

[descrip­tion from Sakib Rasool]

Details

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RCOS 14.5″ f/​8
ASA DDM85
Apo­gee U16M
Astro­don Gen2
HaOIIIR­GB 1880:2080:180:100:220 min.
ROSA Remote Obser­vat­or­ies South­ern Alps
© Mar­tin Ruster­holz, Astrophotographer

Find­er Chart 3C 58 (SN 1181) in Cassiopeia

LBN 380 Region Sky Chart - Astrophotography Martin Rusterholz

Image cre­ated by Skychart