Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: MarkS on Jan 17, 2015, 02:15:21

Title: Lovejoy accidental 5 minute exposure
Post by: MarkS on Jan 17, 2015, 02:15:21
I accidentally took a 5 minute exposure with the Canon 350D on the Tak Epsilon.  It completely burnt out the core but otherwise I really like it:

(http://www.markshelley.co.uk/Astronomy/2015/lovejoy20150116.jpg)

No noise reduction has been applied, nor Canon "banding" removal.

Mark
Title: Re: Lovejoy accidental 5 minute exposure
Post by: Kenny on Jan 17, 2015, 03:10:31
I really like the detail and the bright core adds to the picture.
Title: Re: Lovejoy accidental 5 minute exposure
Post by: Rick on Jan 17, 2015, 08:51:04
Interesting detail in the tail there.
Title: Re: Lovejoy accidental 5 minute exposure
Post by: Carole on Jan 17, 2015, 08:59:29
Yes it's shown up the tail very well.

Carole
Title: Re: Lovejoy accidental 5 minute exposure
Post by: The Thing on Jan 17, 2015, 11:17:14
'Lucky' Mark strikes again. Amazing detail in the tail.
Title: Re: Lovejoy accidental 5 minute exposure
Post by: Fay on Jan 17, 2015, 13:41:01
very good Mark
Title: Re: Lovejoy accidental 5 minute exposure
Post by: RobertM on Jan 17, 2015, 14:15:21
All I can say is ... What a mistaka to maka !!!

I wish all my accidents turned out that well !!!
Title: Re: Lovejoy accidental 5 minute exposure
Post by: Mac on Jan 19, 2015, 09:38:19
Nice,

So was that guided on the comet or the stars?

Mac.
Title: Re: Lovejoy accidental 5 minute exposure
Post by: MarkS on Jan 19, 2015, 19:45:17
Quote from: Mac
So was that guided on the comet or the stars?

Yes, because otherwise you would see trailing stars. The comet features are slightly blurred by trailing but that is not nearly so obvious.
Title: Re: Lovejoy accidental 5 minute exposure
Post by: MarkH on Jan 19, 2015, 20:06:49
I think there's a lot to be said for burning out the centre if you get that much detail elsewhere.
Title: Re: Lovejoy accidental 5 minute exposure
Post by: Fay on Jan 19, 2015, 20:09:34
my mistake was thinking i was on the comet and i was not!!!!!! waste of time! looks like a big star, i put co ordinates in as well
Title: Re: Lovejoy accidental 5 minute exposure
Post by: MarkS on Jan 19, 2015, 20:33:44
Quote from: Fay
my mistake was thinking i was on the comet and i was not!!!!!! waste of time! looks like a big star, i put co ordinates in as well

What a pain! However, if you can't see a big fuzzy blob in the finderscope then you are not on the comet.
Title: Re: Lovejoy accidental 5 minute exposure
Post by: JohnP on Jan 21, 2015, 10:49:13
Mark, you been posting on A POD again....

http://apod.nasa.gov/apod/image/1501/lovejoy_popov_1100.jpg (http://apod.nasa.gov/apod/image/1501/lovejoy_popov_1100.jpg)
Title: Re: Lovejoy accidental 5 minute exposure
Post by: MarkS on Jan 21, 2015, 22:45:22
Quote from: JohnP
Mark, you been posting on A POD again....
http://apod.nasa.gov/apod/image/1501/lovejoy_popov_1100.jpg (http://apod.nasa.gov/apod/image/1501/lovejoy_popov_1100.jpg)

No, but they really should have waited for the latest version of my image. Here it is - I've now combined six accidental 5 minute exposures.  It has blurred the tail slightly but has enabled me to bring out more detail:

(http://www.markshelley.co.uk/Astronomy/2015/lovejoy20150116v2.jpg)

You might just be able to see another fan going out between 7 and 8 o'clock.  It's also in the APOD image and I've noticed the same on other images also.  The extra data has also started to bring out a bluish tint to parts of the tail.  It's genuine - I've performed no colour saturation on it.

Mark
Title: Re: Lovejoy accidental 5 minute exposure
Post by: Carole on Jan 21, 2015, 22:52:51
Fantastic Mark.

Carole
Title: Re: Lovejoy accidental 5 minute exposure
Post by: Fay on Jan 22, 2015, 09:04:32
extremely good Mark!!
Title: Re: Lovejoy accidental 5 minute exposure
Post by: Mike on Jan 22, 2015, 13:31:43
That is spectacular Mark.
Title: Re: Lovejoy accidental 5 minute exposure
Post by: RobertM on Jan 22, 2015, 16:20:57
Yep, no other words to describe it, truly excellent !