G182.4+4.3 Supernova remnant optical emission

  

Curdridge Observatory, Southampton,UK
Object name: G182.4+4.3 Supernova remnant
Apparent RA: 06 08 10  Apparent Dec:+29 00
Constellation: Auriga
10 Feb 2016
Here we present one of the first amateur images of the G182.4+4.3 supernova remnant.
G182.4+4.3 a very faint galactic supernova nova in Auriga, about 50 arc minutes in diameter. Not unlike the well known Sharpless 224, G182.4+4.3 shows a lot of interesting filamentary structure. G182.4+4.3 is estimated to be quite young, around 4400 years old but with a large, 22pc radius.
This image is a combination of 25x1500s, around 10 hours integration time using an Atik 490 CCD Camera and a Sky 90 telescope with an Astrodon 3nm Hydrogen Alpha filter. Note: The narrowness of the filter will attenuate any NII emission.
Due to the very faint nature of G182.4+4.3, it is hard to visualise the supernova remnant amongst the Milky Way starfield. Three images are presented here. The simple stretched version. A second version with the stars aggressively removed, and finally a negative image, which best shows the extent of the emission.
The background further complicated by general backgound fluff.
Reference Sezer, A.; Gok, F.; Aktekin, E.

This image contains the optical counterpart of a supernova remnant


G182.4+4.3 Supernova remnant
Click for full sized image of G182.4+4.3 Supernova remnant
G182.4+4.3 Supernova remnant no stars
G182.4+4.3 Supernova remnant negative

This image was autoguided using my homemade off axis guider with Lodestar.
Imaged with my homemade telescope mount

Exposure Details :

Astrodon 3nm Ha 25x1500s on 90 @ F4 f.l. 409 with Atik 490 camera

Equipment:


Sky 90 Refractor
Homemade focus motor
Atik filterwheel / OAG combo with Lodestar guide camera
Atik 490 CCD camera
Homemade Telescope mount and Dome

Tom How, tomh@tomhow.me.uk Curdridge Observatory, Southampton,UK

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