Henize 70 Superbubble [Archive]

sjastro

31-08-2009, 07:01 AM

One of my favorite objects despite being faint and obscure.

120 m L=R, 60m R, 60m G, 60m B BRC-250 ST-X10ME.

http://users.westconnect.com.au/~sjastro/hen70c.html (http://users.westconnect.com.au/%7Esjastro/hen70c.html)

Regards

Steven

AdrianF

31-08-2009, 07:20 AM

Nice image.

Adrian

renormalised

31-08-2009, 09:14 AM

Nice shot Steven...you've got a few tight clusters in the shot as well.

atalas

31-08-2009, 12:10 PM

A complex planetary neb Steve,top work mate!

citivolus

31-08-2009, 05:05 PM

An interesting object, which it would seem is hard to find information on. I guess I could do a plate solve to get image scale :)

Based on the exposure time and aperture used, the lack of information available on the object would be explainable.

Edit: http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=lha+120-n+70&submit=SIMBAD+search , very vague

sjastro

31-08-2009, 05:06 PM

Thanks Carl.

The LMC is awash with these open clusters. Most of my LMC shots show these.

Thanks Adrian.

Much appreciated Louie.

Regards

Steven

sjastro

31-08-2009, 05:38 PM

According to my tattered Sky Catalogue 2000.0 book this object which doesn't even have a name but is located at the correct co-ordinates is 7 arcminutes in diameter which looks about right for my cropped 40 X 27 arcminute FOV.

Regards

Steven

citivolus

31-08-2009, 05:40 PM

OK, I analysed the image using Pixy. The HII region is 8.15x8.15 arc minutes, centred roughly on 05h43m26 -67 51' 12". Now I can add it to my future targets list :)

citivolus

31-08-2009, 05:41 PM

Thanks, that agrees fairly well with my measured size so I guess my technique wasn't too off :lol:

Regards,
Eric

renormalised

31-08-2009, 06:14 PM

At the given distance of the LMC, that makes Henize70 426.73ly in diameter. Definitely not a PN. Probably formed by multiple supernovae or a hypernova. Also, if you take the average ejecta velocity for a supernova (or series of supernova) explosion of, say, 6000kms, then the original explosion event took place about 21,700 years ago (21,675.18 years to be exact).

Hagar

31-08-2009, 06:19 PM

Very nice Steven. Again the unusual captured very nicely.

sjastro

31-08-2009, 06:25 PM

Henize 70 is an example of a Superbubble.

http://en.wikipedia.org/wiki/Superbubble

Steven

renormalised

31-08-2009, 06:28 PM

Yes, I know. The reason why I mentioned the PN is because Louie mentioned it in his post. I knew it wasn't...it's too big for a start.

h0ughy

31-08-2009, 07:14 PM

well done what an excellent image with plenty of detail.

spearo

31-08-2009, 08:11 PM

Well done Steven
great detail
frank

sjastro

01-09-2009, 06:51 AM

Thanks Doug, David, Frank.

Steven

iceman

01-09-2009, 06:59 AM

That's beautiful, Steven. Lovely result.

seeker372011

01-09-2009, 06:25 PM

awesome

strongmanmike

01-09-2009, 07:13 PM

Beans Means Henize :P

Great capture Steve :thumbsup:

Mike

Alchemy

02-09-2009, 06:01 AM

youre the one doing all the new and unusual stuff, look forward to more little known objects.:thumbsup:

sjastro

02-09-2009, 01:14 PM

Thanks to Mike, Narayan, Mike, and Clive.

Clear skies

Steven

glenc

03-09-2009, 06:43 AM

Steven, that image is superb.

sjastro

04-09-2009, 07:36 AM

Thanks Glen.

I wonder if there is going to be Henize 70 shooting season like M42.

Clear skies

Steven

tornado33

04-09-2009, 02:22 PM

Lovely shot, of a nice southern sky gem.
Scott

sjastro

05-09-2009, 07:56 AM

Thanks Scott.

Clear skies

Steven

gregbradley

05-09-2009, 08:14 AM

Nice capture of an interesting object Steven.

Greg.

Octane

06-09-2009, 12:27 AM

Steven,

That is awesome work.

Agreed with the others, you're doing some really obscure stuff and it's great to see. What's next on your list? :)

Regards,
Humayun

06-09-2009, 01:42 AM

Beautiful shot indeed Steven !

sjastro

06-09-2009, 07:33 AM

Thanks Andrew much appreciated.

Humayun if the weather improves it's the very common NGC 6744.

Thanks Greg.

Clear skies to all.

Steven