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Contains:  IC 3311, M 84, M 86, M 87, NGC 4374, NGC 4387, NGC 4388, NGC 4402, NGC 4406, NGC 4413, NGC 4425, NGC 4431, NGC 4435, NGC 4436, NGC 4438, NGC 4440, NGC 4458, NGC 4461, NGC 4473, NGC 4476, NGC 4478, NGC 4486, The Eyes
Getting plate-solving status, please wait...

Markarian's Chain and M87 (Reloaded :) )

Technical card

Dates:Jan. 27, 2018Jan. 28, 2018Feb. 11, 2018Feb. 17, 2018

Astronomik Deep-Sky B Filter: 1x600" bin 1x1
Astronomik Deep-Sky G Filter: 7x600" bin 1x1
Astronomik Deep-Sky R Filter: 12x600" bin 1x1
Astronomik L2 Lum: 19x600" bin 1x1

Integration: 6.5 hours

Avg. Moon age: 12.12 days

Avg. Moon phase: 45.88%

Basic astrometry details job: 1936135

RA center: 12h 27' 47"

DEC center: +12° 52' 26"

Pixel scale: 1.857 arcsec/pixel

Orientation: 1.182 degrees

Field radius: 1.049 degrees

Resolution: 3248x2451

Locations: Image The Universe Remote Telescopes, Fregenal de la Sierra, Extremadura, Spain


Reloaded after last nights data loss

Always found this area very challenging to process - so, being impatient I thought I would have a go with a partial data set, not the best logic!! However, the trump came up trumps and delivered the photons required :)
On previous attempts, I have found the background is quite difficult to 'make nice'. So here I used the Lum element of the RGB frames and applied back to a processed lum frame background. Results are quite pleasing - A four pane mosaic will follow of the extended area out to M89 and the two panes below as soon as I can find the time.



Paddy Gilliland
License: None (All rights reserved)



Description: A few minor tweaks

Sky plot

Sky plot


Markarian's Chain and M87 (Reloaded :) ), 


            Paddy Gilliland