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Old 13-08-2017, 08:34 AM
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gregbradley
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The Tidal Tail of the SMC

After seeing Colin's SMC showing a tidal tail of stars I had not seen before I wanted to image the area to see what it takes to show it.

This image is just luminance and showed with some pushing. I am not showing it as a finished image as it was more an experiment but it lays the ground for a future image showing the area and with more exposure.

http://www.pbase.com/gregbradley/image/166007076/large

Greg.
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  #2  
Old 13-08-2017, 08:43 AM
Martin Pugh
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Look at that! How interesting. Nice one Greg.

Cheers
Martin
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Old 13-08-2017, 09:09 AM
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Atmos (Colin)
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That's fantastic Greg! I do want to revisit this again once I get my widefield mono setup setup. Just waiting for some rings and things so that I can mount everything securely.

Your FOV is pretty much perfect. I have wondered if there was a fainter tail that could be picked up in more than 2 hours with a DSLR.
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Old 13-08-2017, 09:16 AM
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Quote:
Originally Posted by Martin Pugh View Post
Look at that! How interesting. Nice one Greg.

Cheers
Martin
Thanks Martin. Though its really Colin who started this project. I was wondering how well it would show up with a sensitive CCD. It probably needs 8 hours to show easily without excessive pushing.

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Originally Posted by Atmos View Post
That's fantastic Greg! I do want to revisit this again once I get my widefield mono setup setup. Just waiting for some rings and things so that I can mount everything securely.

Your FOV is pretty much perfect. I have wondered if there was a fainter tail that could be picked up in more than 2 hours with a DSLR.
I looked at your image to get the orientation right as its a bit of guess as to which part it was from.

Greg.
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Old 13-08-2017, 10:26 AM
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Peter Ward
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Great rendition of a difficult target. Nice one.
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  #6  
Old 13-08-2017, 10:36 AM
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Awesome Greg!
It will be great to go super deep on this....

Cheers,
Tim
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  #7  
Old 13-08-2017, 10:37 AM
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Have you had a chance to try Ha yet Greg? I'm not entirely sure on my colour balance as I had a filter on the lens that night that caused some CA. The tidal tail looks quite blue which makes sense. Gravitational interaction causes star formation so there should be a bit of ionised Ha down in that region. I may have to look and see if I can find some of the 21cm line in that area.
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  #8  
Old 13-08-2017, 12:04 PM
Placidus (Mike and Trish)
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Bravo, Greg. Totally tight and convincing.
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Old 13-08-2017, 12:59 PM
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Yeah great stuff Greg good to see some different rarely revealed things too.

Sure it can be niiiice ...but fair suck, enough M8's and M20's already

Of course... if I ever get this FSQ up and running... I am sure to shoot the pair too at some stage


Mike
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  #10  
Old 13-08-2017, 03:34 PM
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Quote:
Originally Posted by Peter Ward View Post
Great rendition of a difficult target. Nice one.
Cheers Peter

Quote:
Originally Posted by topheart View Post
Awesome Greg!
It will be great to go super deep on this....

Cheers,
Tim
I wanted to see if it was worth the effort before I commited valuable imaging time.

Quote:
Originally Posted by Atmos View Post
Have you had a chance to try Ha yet Greg? I'm not entirely sure on my colour balance as I had a filter on the lens that night that caused some CA. The tidal tail looks quite blue which makes sense. Gravitational interaction causes star formation so there should be a bit of ionised Ha down in that region. I may have to look and see if I can find some of the 21cm line in that area.
There is very little Ha in the SMC Colin. I have done Ha in the area before, there are patches of Ha in the SMC but its not like the LMC that way.

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Bravo, Greg. Totally tight and convincing.
Cheers Mike.

Quote:
Originally Posted by strongmanmike View Post
Yeah great stuff Greg good to see some different rarely revealed things too.

Thanks Mike.

Sure it can be niiiice ...but fair suck, enough M8's and M20's already

Of course... if I ever get this FSQ up and running... I am sure to shoot the pair too at some stage


Mike
Let me keep this quote when we see your M8/M20 FSQ shot eh?

Greg.
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  #11  
Old 13-08-2017, 03:56 PM
croweater (Richard)
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Really interesting stuff. Hope some of you guys can take it further. Is it known what is causing such tidal effects? Cheers, Richard
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  #12  
Old 14-08-2017, 08:44 AM
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Really interesting stuff. Hope some of you guys can take it further. Is it known what is causing such tidal effects? Cheers, Richard
Thanks Richard.

Its most likely an interaction with the LMC at some point.

Greg.
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  #13  
Old 14-08-2017, 08:49 AM
DJT (David)
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Nicely done Greg. Interesting stuff indeed.
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  #14  
Old 14-08-2017, 09:30 AM
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graham.hobart (Graham stevens)
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tidal tail

gorgeous !!
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  #15  
Old 14-08-2017, 09:52 AM
willik (Willik)
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Very interesting and not a easy image to take nice shot Greg
Martin
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  #16  
Old 14-08-2017, 01:01 PM
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Quote:
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Nicely done Greg. Interesting stuff indeed.
Thanks David. I'm encouraged to do a more full on exposure with colour.

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Originally Posted by graham.hobart View Post
gorgeous !!
Thanks Graham.

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Very interesting and not a easy image to take nice shot Greg
Martin
Cheers Martin.

Greg.
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  #17  
Old 14-08-2017, 01:02 PM
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marc4darkskies (Marcus)
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Interesting! Nicely done Greg!
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  #18  
Old 14-08-2017, 01:05 PM
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Interesting! Nicely done Greg!
It is interesting isn't it. Thanks Marcus.

Greg.
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  #19  
Old 14-08-2017, 02:00 PM
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Very cool Greg should be a great project.
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  #20  
Old 14-08-2017, 03:54 PM
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Very cool Greg should be a great project.
Thanks Louie. I'm sufficiently encouraged to invest the imaging time at my dark site.

Greg.
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