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G206.9+2.3 supernova remnant


Tom How
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http://astro.neutral.org/imagehtml/20160215-supernova-g206.9+2.3-positive.html

Another one of the obscure supernova remnants, G206.9+2.3, following my recent visit to https://stargazerslounge.com/topic/263027-g182443-supernova-remnant/

This one is just east of the Rosette, so probably crops up on a few wide fields of the area, but here it is a bit closer, showing the nice filament structire. almost a mini Veil nebula :)

Lots and lots of milky way fluff in the frame, but the supernova parts are pretty obvious.

24x1200s with Astrodon 3nm Ha.

Takahashi Sky 90 
Atik 490 CCD Camera
Takahashi F4.5 reducer/flattener
Astrodon 3nm Ha filter
Off axis guider with SX Lodestar.
Homemade telescope mount.
Homemade telescope observatory dome.

20160215_g206.9+2.3-1024.jpg
 

Edited by Tom How
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17 hours ago, wimvb said:

Another amazing image. What made you start chasing these faint objects?

I ran across a paper related to G156.2+5.7 last Jan, and picked up almost nothing from that. In the autumn whilst imaging the well known CTB1 remnant I ran across its sibbling, CTA1, and imaged that. Well, you know how one thing leads to another.

I enjoy taking an unconventional approach to many aspects of this hobby. I guess after spending a few years gathering about a third of the Sharpless Catalog, it was time to find something "beyond Sharpless" :)

It is kinda exciting when you shoot something with no reference except survey plates - at least I could see the filaments on the DSS plates. The earlier G182.4+4.3 was so dim it was just "shoot and hope" - I had no idea what I was going too see.

Edited by Tom How
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Fantastic image!

Great to see new stuff. Apparently you are well beyond the go-to stage of AP, and it is comforting for us at the go-to stage to know that there are much more to explore when we feel ready.

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3 hours ago, Tom How said:

[...]

I enjoy taking an unconventional approach to many aspects of this hobby. I guess after spending a few years gathering about a third of the Sharpless Catalog, it was time to find something "beyond Sharpless" :)

[...]

I spent a few moments at your website, and I understand what you mean by "unconventional". Your approach may be unconventional, but the results, mechanical as well as photographical, are certainly impressive.

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Amazing image! I've never heard of this nebula before and of course never seen it either. It almost reminds of some kind of larvae :icon_biggrin:. I also had a look at your website and saw among all the other fantastic images CTB1. Really great stuff far from the mainstream road.

/Lars

Edited by Lars
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23 hours ago, wimvb said:

I spent a few moments at your website, and I understand what you mean by "unconventional". Your approach may be unconventional, but the results, mechanical as well as photographical, are certainly impressive.

I have been doing this since the "webcam revolution" in 2002/2003, and after all these years you do find yourself up some peculiar avenues.

Some members may remember the QCUIAG yahoo group which started off the whole webcam imaging trend. Perhaps this is from where I borrow the "unconventional" label :)

 

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