Hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Andromeda galaxy  ·  Great Nebula in Andromeda  ·  M 110  ·  M 31  ·  M 32  ·  M110  ·  M31  ·  M32  ·  NGC 205  ·  NGC 221  ·  NGC 224  ·  NGC206
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M31 Andromeda Mosaic, 


            Sven Hoffmann
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M31 Andromeda Mosaic

Technical card

Imaging telescopes or lenses: SkyWatcher Esprit 100ED Super APO Triplet

Imaging cameras: ZWO ASI1600MM-Cool

Mounts: SkyWatcher AZ-EQ5 GT

Guiding telescopes or lenses: Orion 50mm GuideScope

Guiding cameras: QHYCCD QHY5L-IIm

Software: Pleaides Astrophoto PixInsight 1.8 Ripley  ·  Sequence Generator Pro  ·  Photoshop CC

Filters: Baader L

Accessory: ZWO EFWmini 5x 1.25"  ·  Intel Compute Stick  ·  Skywatcher Field Flattener for Esprit 100

Dates:Aug. 30, 2016

B: 22x300" (gain: 0.00) -10C bin 1x1
G: 28x300" (gain: 0.00) -10C bin 1x1
Baader L: 46x240" (gain: 0.00) -10C bin 1x1
R: 26x300" (gain: 0.00) -10C bin 1x1

Integration: 9.4 hours

Darks: ~16

Flats: ~16

Bias: ~16

Avg. Moon age: 27.69 days

Avg. Moon phase: 3.78%

Bortle Dark-Sky Scale: 5.00

Mean FWHM: 3.50

Temperature: 20.00

Astrometry.net job: 1224782

RA center: 0h 42' 43"

DEC center: +41° 16' 26"

Pixel scale: 1.411 arcsec/pixel

Orientation: 64.552 degrees

Field radius: 1.453 degrees

Resolution: 3642x6466

Data source: Backyard


This is a 2 panel Mosaic I took. First mosaic and first LRGB image for me - I must be crazy to try both "firsts" at the same time :D
I'm very pleased with how it turned out.
Taken at gain 0.
Also a big shoutout to Jason Guenzel who helped me to understand how I needed to process RGB from L separately to retain the galaxy colors.


Sky plot

Sky plot


M31 Andromeda Mosaic, 


            Sven Hoffmann

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