ANZAC Day
Go Back   IceInSpace > Beginners Start Here > Beginners Astrophotography
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rate Thread
  #1  
Old 15-01-2020, 03:40 PM
casstony
Registered User

casstony is offline
 
Join Date: Feb 2006
Location: Warragul, Vic
Posts: 4,494
Sh2-308

Sharpless 2-308 is a bubble blown out by a star thought to be in it's pre-supernova phase.
I took this image through thin smoke and with a rising full moon, about 2.5 hours of 6 min exposures with the L-Enhance filter.
I hope to get quite a nice image under better conditions.
Attached Thumbnails
Click for full-size image (sh2_308_120120_DBE10% - Copy.jpg)
124.5 KB202 views
Click for full-size image (sh2_308_120120_DBE2_DBE_ABE11%.jpg)
198.4 KB209 views
Reply With Quote
  #2  
Old 15-01-2020, 04:04 PM
Paulyman (Paul)
Registered User

Paulyman is offline
 
Join Date: Nov 2017
Location: Woronora
Posts: 180
Very nice.
Reply With Quote
  #3  
Old 15-01-2020, 04:38 PM
Outcast's Avatar
Outcast (Carlton)
Always gonna be a NOOB...

Outcast is offline
 
Join Date: Oct 2008
Location: Cairns, Qld
Posts: 1,285
That is very cool Tony...
Reply With Quote
  #4  
Old 15-01-2020, 10:26 PM
Zubenel's Avatar
Zubenel (Wes)
Awe and Wonder

Zubenel is offline
 
Join Date: Aug 2005
Location: SE QLD
Posts: 585
Good One Tony. AKA the Dolphin Head neb in Canis Major, Not far from M41.
Reply With Quote
  #5  
Old 16-01-2020, 12:00 AM
carlstronomy (Carl)
Registered User

carlstronomy is offline
 
Join Date: May 2012
Location: Brisbane
Posts: 442
Super image, love the detail you have in there
Reply With Quote
  #6  
Old 16-01-2020, 04:46 AM
skysurfer's Avatar
skysurfer
Dark sky rules !

skysurfer is offline
 
Join Date: Dec 2011
Location: 52N 6E (EU)
Posts: 1,152
Amazing pic, particularly when taken at a full moon with smoke haze which exacerbates the light pollution effect !


Which telescope / lens did you use ?
Reply With Quote
  #7  
Old 16-01-2020, 12:06 PM
casstony
Registered User

casstony is offline
 
Join Date: Feb 2006
Location: Warragul, Vic
Posts: 4,494
Thanks everyone for the kind comments.
This was taken with the TS115 and 0.8 reducer. I've just received a Starizona Apex 0.65 reducer which will bring the f/7 scope to f/4.6 so I might try that next time, given the faintness of the bubble.

It's a fabulous object in nature and appearance - I'd really like to get a clear image.
Reply With Quote
  #8  
Old 17-01-2020, 12:14 PM
LostInSp_ce's Avatar
LostInSp_ce
Unregistered User

LostInSp_ce is offline
 
Join Date: Mar 2017
Posts: 754
Very impressive Tony, especially during these times.
Reply With Quote
  #9  
Old 17-01-2020, 01:05 PM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,176
Given the sort of conditions around in recent times , thats a really nice result Tony Its a fascinating object, I had hoped to hit it this season too with the FSQ but I'm not holding my breath....well then again,actually, I am doing a fair bit of that lately

Mike
Reply With Quote
  #10  
Old 17-01-2020, 03:31 PM
casstony
Registered User

casstony is offline
 
Join Date: Feb 2006
Location: Warragul, Vic
Posts: 4,494
Thanks Lost and Mike. We might still get lucky with the rain that's forecast dampening the fires down.

For anyone wondering how to find sh2-308 you can go-to the brightest star in the image, SAO 172542.
Reply With Quote
  #11  
Old 22-01-2020, 08:12 PM
casstony
Registered User

casstony is offline
 
Join Date: Feb 2006
Location: Warragul, Vic
Posts: 4,494
Had another go at this one last night with the Apex 0.65 reducer on the TS115 - the object exceeds my processing skills though - need to do some reading.
Attached Thumbnails
Click for full-size image (sh2-308.220120final14%.jpg)
160.0 KB202 views
Reply With Quote
  #12  
Old 23-01-2020, 10:33 AM
xelasnave's Avatar
xelasnave
Gravity does not Suck

xelasnave is offline
 
Join Date: Mar 2005
Location: Tabulam
Posts: 16,930
I now have gear that is beyond my ability ... But enjoy trying to get all I can out of it...anything at all is good..I am 73 and need a walking frame ..it is a challenge...and then you realise there is just so much more to learn..
I still don't 2 star align and find objects manually through a finder..I some how enjoy the challenge of finding simething...and those times you have trouble finding it for whatever reason.. mmm it should be here but it's not..I Remember those stars..??? And I guess I would prefer to move manually to save battery power ..actually main reason besides the earlier reflection. Comes from feeding torch batteries to my first eq mount..it started as a money thing but I just don't bother with Goto oddly.
My trouble is I do so much to get ahead of myself...still I am old I can't wait around...not much time left for doing this you could think.
Alex
Reply With Quote
  #13  
Old 23-01-2020, 12:59 PM
casstony
Registered User

casstony is offline
 
Join Date: Feb 2006
Location: Warragul, Vic
Posts: 4,494
Quote:
Originally Posted by xelasnave View Post
...anything at all is good..
Alex
Yeah it's all good fun Alex. I go in and out to the imaging rig and enjoy just sitting looking at the sky while I wait for an exposure to finish.

It's looking mostly clear tonight so I might try adding a few hours to the image, then hopefully have to stretch less.
Reply With Quote
  #14  
Old 28-01-2020, 09:28 PM
LostInSp_ce's Avatar
LostInSp_ce
Unregistered User

LostInSp_ce is offline
 
Join Date: Mar 2017
Posts: 754
Quote:
Originally Posted by casstony View Post
Had another go at this one last night with the Apex 0.65 reducer on the TS115 - the object exceeds my processing skills though - need to do some reading.
It still looks amazing!
Reply With Quote
  #15  
Old 30-01-2020, 05:19 PM
etill (Elliot)
Registered User

etill is offline
 
Join Date: Oct 2019
Location: Melbourne
Posts: 140
I tried this with my setup a few nights ago on quite a clear night. 2 hours of subs barely showed up the outline of one side of it. This looks like a great start.

It's on top of my list to go back and try again, perhaps after a little more practice or from somewhere further from the city.
Reply With Quote
  #16  
Old 30-01-2020, 05:31 PM
casstony
Registered User

casstony is offline
 
Join Date: Feb 2006
Location: Warragul, Vic
Posts: 4,494
One of the dual narrow-band filters or better still separate NB filters are a big help for this one Elliot.
Reply With Quote
  #17  
Old 30-01-2020, 11:08 PM
Ant0nio's Avatar
Ant0nio (Tony)
Quid Clarius Astris

Ant0nio is offline
 
Join Date: Apr 2018
Location: Gympie,Qld. Australia
Posts: 434
Beautiful shot of this amazing DSO with the Starizona reducer Tony. It puts just the right amount of space around it IMO. The reducer seems to be a winner too, nice stars corner to corner. Thank you for posting this Tony, I've been wanting to image this one myself but had trouble finding it, I used your SAO reference & got it center frame first go.
Cheers,
Tony
Reply With Quote
  #18  
Old 31-01-2020, 08:59 AM
casstony
Registered User

casstony is offline
 
Join Date: Feb 2006
Location: Warragul, Vic
Posts: 4,494
You're welcome Tony.
The Apex reducer is pretty good though there are astigmatic looking stars around the edge of field in the full APSc frame (easily seen in my recent Seagull image, also visible in Carina image).
Since it's such a strong reducer it's fussy about distance from the chip so hopefully I can improve the outer field with more experimenting.
Reply With Quote
  #19  
Old 31-01-2020, 06:32 PM
Sunfish's Avatar
Sunfish (Ray)
Registered User

Sunfish is offline
 
Join Date: Mar 2018
Location: Wollongong
Posts: 1,909
Outstanding Dolphin Head.
Reply With Quote
  #20  
Old 01-02-2020, 10:18 AM
ChrisV's Avatar
ChrisV (Chris)
Registered User

ChrisV is offline
 
Join Date: Aug 2015
Location: Sydney
Posts: 1,738
That's really nice Tony!
Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 12:22 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Advertisement
Bintel
Advertisement
Testar
Advertisement