Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Roberto on Apr 15, 2020, 14:44:21

Title: M3 and Virgo galaxies
Post by: Roberto on Apr 15, 2020, 14:44:21
Hello All

I trust you are well and making the most out of the lemons we've been handed!

I completed the attached M3 last week and am now working on the Eastern part of the Virgo cluster (did the Markarian Chain a few years ago) in the first half of the night and a region in Vulpecula in the second half.  M3 is only 7hrs worth of colour exposure so I decided to combine the RGB files to create a synthetic luminance to deconvolve and stretch. The annotated Virgo Cluster image is 3hrs worth of exposure; hope to do more over the next few nights.  Nothing to show for Vulpecula yet!

Last night's seeing was some of the best I've had in England for double star observation; get out there tonight if clear!

Best wishes

Roberto

M3 - wide field https://www.astrobin.com/q697mv/D/?real=&nc=user (https://www.astrobin.com/q697mv/D/?real=&nc=user)
(https://cdn.astrobin.com/thumbs/Jd42s87it3R2_16536x16536_BhGLtlq6.jpg)

M3 - Annotated
(https://cdn.astrobin.com/thumbs/FoKECe2Ms8uW_16536x16536_2kAqTVsf.jpg)

M88 and friends - work in progress
(https://cdn.astrobin.com/thumbs/oPEz9zXkkzzi_16536x16536_b9cgN99y.jpg)

https://en.wikipedia.org/wiki/Messier_88 (https://en.wikipedia.org/wiki/Messier_88)
Title: Re: M3 and Virgo galaxies
Post by: Carole on Apr 15, 2020, 18:15:56
Some nice targets there Roberto.

Carole
Title: Re: M3 and Virgo galaxies
Post by: Roberto on Apr 15, 2020, 19:44:19
Thank you Carole! Hope you are well.
Title: Re: M3 and Virgo galaxies
Post by: NoelC on Apr 16, 2020, 11:16:19
Really nice Roberto.
Excellent tracking and resolution.
Noel
Title: Re: M3 and Virgo galaxies
Post by: Roberto on Apr 16, 2020, 12:12:11
Thank you Noel.
Title: Re: M3 and Virgo galaxies
Post by: The Thing on Apr 16, 2020, 13:37:22
That is one sharp well resolved M3. Fantastic Roberto. The galaxies are not shoddy either!
Title: Re: M3 and Virgo galaxies
Post by: Roberto on Apr 16, 2020, 13:43:16
Thank you Duncan - the wonders of deconvolution!

Roberto
Title: Re: M3 and Virgo galaxies
Post by: RobertM on Apr 16, 2020, 19:39:36
Just goes to prove that not all lemons are created equal :)

Lovely images as ever but... I can only ever see half of it full res on my monitor any one time :(

Robert
Title: Re: M3 and Virgo galaxies
Post by: ApophisAstros on Apr 19, 2020, 19:04:58
Wonderful images Roberto , how do you annotate them, great when you zoom in.
Roger
Title: Re: M3 and Virgo galaxies
Post by: Roberto on Apr 19, 2020, 19:27:32
Robert, many thanks.

Roger, there's a script in PixInsight that does this (semi)automatically. The image must be astrometrically solved and then catalogues are loaded to place markers on objects by coordinates. It's very impressive.

Thanks

Roberto
Title: Re: M3 and Virgo galaxies
Post by: ApophisAstros on Apr 19, 2020, 20:00:06
Cheers for that heads up,
Roger