Contains: M 87, NGC 4486, NGC 4479, NGC 4478, NGC 4477, NGC 4476, NGC 4473, NGC 4461, NGC 4458, NGC 4440, NGC 4438, NGC 4436, The Eyes, NGC 4435, NGC 4431, NGC 4425, NGC 4413, M 86, NGC 4406, NGC 4402, NGC 4388, NGC 4387, IC 3311, M 84, NGC 4374
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markarian's chain

Technical card

Imaging telescope or lens: TMB-92SS

Imaging camera: SBIG STT 8300M

Mount: Astro-Physics Mach1 GTO

Guiding telescope or lens: TMB-92SS

Guiding camera: SBIG STT 8300M

Software: Main Sequence Software Sequence Generator ProPixInsightPHD guidingAstrometry.net

Filters: Astrodon Blue G2EAstrodon Green G2EAstrodon Red G2E

Resolution: 3212x2372

Dates: April 12, 2017April 26, 2017May 31, 2017

Frames:
Astrodon Blue G2E: 149x240" -30C bin 1x1
Astrodon Green G2E: 163x240" -30C bin 1x1
Astrodon Red G2E: 130x240" -30C bin 1x1

Integration: 29.5 hours

Darks: ~30

Flats: ~30

Bias: ~200

Avg. Moon age: 17.27 days

Avg. Moon phase: 45.86%

Bortle Dark-Sky Scale: 7.00

Mean SQM: 19.50

Astrometry.net job: 1615697

RA center: 186.991 degrees

DEC center: 12.966 degrees

Pixel scale: 2.188 arcsec/pixel

Orientation: -179.989 degrees

Field radius: 1.214 degrees

Locations: Casa de Rob, Oakland, CA, United States

Description

markarian's chain - april/may 2017

130x240s R (8h40m)
163x240s G (10h52m)
149x240s B (9h56m)

total 29h28m

TMB92ss + orion flattener (f/5.5) + STT-8300M + FW8G-STT, astrodon gen2e filters
mach1gto
captured with Sequence Generator Pro
processing in pixinsight

Comments

Author

pfile
Like

Revisions

B

remove slight green cast and had forgotten to transform to sRGB color space

C

pulled reds back a little

D

color calibration with PI 1.8.5 PhotometricColorCalibration module; reprocessed

Sky plot

Sky plot

Histogram

markarian's chain, 






    pfile