Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: MarkS on Jun 27, 2017, 20:40:07

Title: M81, M82 and IFN
Post by: MarkS on Jun 27, 2017, 20:40:07
Seeing today's APOD (https://apod.nasa.gov/apod/ap170627.html) has reminded me that I haven't posted one of the images I took in France.

It's the usual Sony A7S on the Tak Epsilon. 4 hours of data in 30sec subs at ISO 10000.

(http://www.markshelley.co.uk/Astronomy/2017/M81M82IFN_20170525_medium.jpg)

Larger version here:
http://www.markshelley.co.uk/Astronomy/2017/M81M82IFN_20170525.jpg

I'm pretty pleased that in the lower left of the image, the brown dust colour is definitely beginning to show.  You won't find that in the average LRGB image of the same area. 

Mark
Title: Re: M81, M82 and IFN
Post by: Carole on Jun 27, 2017, 21:46:09
Lovely image Mark, lots of dust showing.  You certainly seem to have found ways around the problems with that camera.

I have to say though I am sure I have seen this image before, or was it a previous attempt at this area?
Hopefully Doug will pick this up in time for tomorrow's meeting. 

Carole
Title: Re: M81, M82 and IFN
Post by: MarkS on Jun 27, 2017, 22:38:18
Quote from: Carole
I have to say though I am sure I have seen this image before, or was it a previous attempt at this area?

I posted it on SGL and forgot to post it here :)

Mark
Title: Re: M81, M82 and IFN
Post by: Hugh on Jun 28, 2017, 15:04:59
Hi Mark and Carole

A great pic Mark!  Doug is away and I'm doing the presentation this evening (supplied by Doug).  As this month's PoTM has been selected and this could be a candidate I'll leave it to Doug to make a choice for the July Society Meeting.

Best

Hugh
Title: Re: M81, M82 and IFN
Post by: MarkS on Aug 16, 2017, 19:08:36
It's just won a competition :)

https://stargazerslounge.com/topic/298244-imaging-challenge-3-30-second-exposures-winners/

Mark
Title: Re: M81, M82 and IFN
Post by: Carole on Aug 16, 2017, 20:05:54
Yes I saw that on SGL, congratulations Mark.  A great image.

Carole
Title: Re: M81, M82 and IFN
Post by: JohnP on Aug 16, 2017, 22:31:00
Not surprised..  it's a top image... well done.
Title: Re: M81, M82 and IFN
Post by: The Thing on Aug 17, 2017, 09:05:20
Amazing Mark, well done on the competition! Incredible depth and even rendering of the IFN across the field of view.

BTW reminded me I have 150x300s of this area to process! That's 300s not 30s ;(
Title: Re: M81, M82 and IFN
Post by: Fay on Aug 17, 2017, 19:47:18
well done Mark, great image!!

Fay
Title: Re: M81, M82 and IFN
Post by: Kenny on Aug 22, 2017, 16:15:57
Fantastic image Mark and well done on winning the competition. Very well deserved.
Title: Re: M81, M82 and IFN
Post by: MarkH on Aug 22, 2017, 20:32:57
Congratulations Mark great image
Title: Re: M81, M82 and IFN
Post by: MarkS on Aug 23, 2017, 06:41:05
Thanks Mark, Kenny, Fay, Duncan, John and Carole.

Mark