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Old 07-01-2019, 03:51 PM
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Andy01 (Andy)
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New Year, New targets - Works in Progress...

Hi Team,

With 'er indoors permission I ran away for a couple of clear nights imaging in the country under dark skies. Although the wind was a killer on the first night - even with the makeshift auto windbreak it was gusty and it was coming in from two different directions!

Anyway, two new targets (for me anyway) both need a second night's data to really pop & clean up the remaining noise, weather permitting, I should be able to get that done late this week.

(Descriptions below borrowed from APOD)

NGC 2736 - Hershel's Ray
The thin, bright, braided filaments are actually long ripples in a sheet of glowing gas seen almost edge on. The interstellar shock wave plows through space at over 500,000 kilometers per hour. Cataloged as NGC 2736, its elongated appearance suggests its popular name, the Pencil Nebula. The Pencil Nebula is about 5 light-years long and 800 light-years away, but represents only a small part of the Vela supernova remnant.

Taken from Suburban Melbourne & Rural Victoria -
HaO3RGB 180:120:40:40:40

NGC 2359 - Thor's Helmet
This helmet-shaped cosmic cloud with wing-like appendages is popularly called Thor's Helmet. Heroically sized even for a Norse god, Thor's Helmet spans about 30 light-years across. In fact, the helmet is more like an interstellar bubble, blown as a fast wind -- from the bright star near the center of the bubble's blue-hued region -- sweeps through a surrounding molecular cloud. This star, a Wolf-Rayet star, is a massive and extremely hot giant star thought to be in a brief, pre-supernova stage of evolution. Cataloged as NGC 2359, the emission nebula is located about 12,000 light-years away toward the constellation of the Big Dog (Canis Major). This image, made using broadband (RG&B) and narrowband (O3 & Ha) filters, shows the nebula's filamentary gas and dust structures. The blue color originates from strong emission from oxygen atoms in the nebula.

Taken in rural Victoria -
HaO3O3RGB 100:70:70:20:20:20

Both images taken using the 10" f4 CF Newt/Tak NJP/QSI683wsg8.
C&C welcome as always..
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Old 07-01-2019, 06:11 PM
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Atmos (Colin)
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I had always thought that Hershel’s Ray was larger than that but I’m happy to be corrected!

Both are showing good depth and detail so far Andy but more data is always wanted
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Old 07-01-2019, 07:11 PM
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multiweb (Marc)
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Very neat and sharp as.
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Old 07-01-2019, 08:02 PM
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Nice work, Andy!
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Old 09-01-2019, 11:29 AM
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Both looking very good Andy

One thing though, without a Moon you can get pretty good results in NB, especially relatively bright objects like these, from suburbia . Dark sites make a big difference for deep Lum gathering and deep RGB (as apposed to when just gathering RGB largely for star colour only). Since you have to travel (and get permission to leave ) I'd be saving trips to dark sites for deep gradient free LRGB shooting

Mike
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Old 09-01-2019, 12:19 PM
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Andy01 (Andy)
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Quote:
I had always thought that Hershel’s Ray was larger than that but I’m happy to be corrected!

Both are showing good depth and detail so far Andy but more data is always wanted

Very neat and sharp as.

Nice work, Andy!
Colin, Marc & Rick, thanks for the encouragement - hoping to finish these off as soon as Melbourne's weather permits

Quote:
Originally Posted by strongmanmike View Post
Both looking very good Andy

One thing though, without a Moon you can get pretty good results in NB, especially relatively bright objects like these, from suburbia . Dark sites make a big difference for deep Lum gathering and deep RGB (as apposed to when just gathering RGB largely for star colour only). Since you have to travel (and get permission to leave ) I'd be saving trips to dark sites for deep gradient free LRGB shooting

Mike
Cheers Mike - you're correct of course.
Unfortunately I have large trees in my neighbour's backyard that block the views NE-NW so Thor's is harder to image from home - and it's been on the bucket list for a long, long time, so...

Hopefully the Sombrero & M83 can be targeted next trip away.
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Old 09-01-2019, 12:28 PM
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Quote:
Originally Posted by Andy01 View Post
Cheers Mike - you're correct of course.
Unfortunately I have large trees in my neighbour's backyard that block the views NE-NW so Thor's is harder to image from home - and it's been on the bucket list for a long, long time, so...

Hopefully the Sombrero & M83 can be targeted next trip away.
Yes, good sky access is usually another advantage of most good dark sky sites too

Fun times....

Mike
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Old 09-01-2019, 03:19 PM
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Love the Herschels Ray image. I have never seen those tendrils coming off it raining down on the left before.

That's a good image scale for that object. A shot of Herschel's Ray can mean only one thing - Its Vela SNR time!! Yeah.

Thors Helmet colour looks a little off. Its more a teal object.

Greg.
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Old 09-01-2019, 04:03 PM
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I take it the weather down Mexico way has been pretty good

Progressing well. ....so, can you get that Indian north of the border to stop the rain dance?
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Old 09-01-2019, 05:18 PM
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Nice work, Andy, looking good so far. Will look excellent once you can get some more data to improve the SNR.
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Old 09-01-2019, 05:56 PM
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Really good looking images already Andy. I'm looking forward to the final versions.

Steve
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Old 09-01-2019, 08:54 PM
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Quote:
Originally Posted by gregbradley View Post
Love the Herschels Ray image. I have never seen those tendrils coming off it raining down on the left before.

That's a good image scale for that object. A shot of Herschel's Ray can mean only one thing - Its Vela SNR time!! Yeah.

Thors Helmet colour looks a little off. Its more a teal object.

Greg.
Cheers Greg, Lots of imaging goodness to be found in Vela

Quote:
Originally Posted by Peter Ward View Post
I take it the weather down Mexico way has been pretty good

Progressing well. ....so, can you get that Indian north of the border to stop the rain dance?
Thanks Peter, you wouldn’t want to see my 80’s dance moves then!

Quote:
Originally Posted by codemonkey View Post
Nice work, Andy, looking good so far. Will look excellent once you can get some more data to improve the SNR.
Cheers Lee, yes hopefully just one, maybe two more decent clear nights at f4 - loving the speed of this beast!

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Originally Posted by Stevec35 View Post
Really good looking images already Andy. I'm looking forward to the final versions.

Steve
Thanks Steve, no pressure now then hey
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Old 11-01-2019, 09:31 AM
Placidus (Mike and Trish)
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Both really good Andy. You're getting some impressively faint material there.
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Old 18-01-2019, 09:08 AM
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Not bad Andy, at least your Newtonian has most of the bugs worked out of it. I bet you cannot wait to grab some more data on them.
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Old 18-01-2019, 10:01 AM
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Quote:
Originally Posted by Placidus View Post
Both really good Andy. You're getting some impressively faint material there.
Cheers M&T- considering the relatively short integration time, there’s a fair bit going on already- makes me wonder about those Tak newts that image at f2.8!
Bet you’re keen to get your camera working again

Quote:
Originally Posted by Paul Haese View Post
Not bad Andy, at least your Newtonian has most of the bugs worked out of it. I bet you cannot wait to grab some more data on them.
Thanks Paul! Diego loaned it to me & I used it once and immediately ‘saw the light’ was very impressed and promptly purchased it from him. Guess he sorted it out prior so now it just works
Sorry to hear of your issues with OOUK, I’d happily recommend having a chat with Diego & Paul from Sidereal Trading if you want one of their hand built fast newts that work well out of the box

I’m still gathering data on Hershel’s Ray, but Thor was finally finished last week. There’s a thread for it in this section already.
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Old 20-01-2019, 04:50 PM
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Very nice Andy I like it a lot.
Martin
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