M51 galaxy, a LHa,RHa,BOIII,GOIII picture (Niels V. Christensen)

M51 galaxy, a LHa,RHa,BOIII,GOIII picture

April-2016: Another reprocessed version of M51 that now consist of 221 min. Lum data/subs.

Total exposure is now more than 7 hours.

-------------------------------------

A reprocessed version of this one,

http://www.cloudynights.com/topic/460423-m51-galaxy-a-6-hours-lhargboiii-picture/

Just to have it here, raw data like this:

I use the Lepus 0.62X reducer to get F10 down to F6.2.

Exposure for L=132min., 66*2min.

For RGB it was 20min. each color in 2min. subs.

For Ha and OIII it was 18*5min. each NB filter and Bin was 2*2 for all filters.

My home build observatory is placed in my front yard/in the "red light" polution zone, have a look here,

Red Zone

On request I will be happy to share/show tif/fit files/stack info, please just let me know, thanks.

Kind regards Niels

Original
B
C
D
Final
E

D

Description: Added Jan-Febr-2017 LRGB exposure data to the existing picture. In total for 2017, 150min. exposure. First time I used my new camera, the ZWO asi1600MM cool type.
Kind regards Niels

Uploaded: ...

E

Description: Slightly increased the contrast in the colors. Kind regards Niels

Uploaded: ...

Light Polluted skies
CMOS Imagers
Schmidt-Cassegrain Telescope (SCT) Imagers
Messier Objects
"Nordish by nature"

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Status	Basic failed
Started	...
Astrometry.net job	1478596
PixInsight job	n/a
PixInsight queue size	n/a
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