Hemisphere:  Northern  ·  Contains:  Great Nebula in Andromeda  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 221  ·  NGC 224  ·  The star νAnd


            Amir H. Abolfath
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Technical card

Imaging telescopes or lenses: Vixen VSD 100

Imaging cameras: SBIG STF 8300M

Mounts: Paramount MX

Guiding telescopes or lenses: Orion 60mm Guidescope

Guiding cameras: SBIG STi mono

Focal reducers: Vixen VSD reducer 0.79x

Software: The SkyX  ·  Photoshop  ·  Registar  ·  Pixinsight  ·  Images Plus

Filters: Baader H-Alpha 36mm 7nm  ·  Baader L  ·  B  ·  G  ·  R

B: 16x180" -15C bin 1x1
B: 10x20" -15C bin 1x1
B: 10x60" -15C bin 1x1
G: 9x180" -15C bin 1x1
G: 5x20" -15C bin 1x1
G: 5x60" -15C bin 1x1
Baader H-Alpha 36mm 7nm: 5x60" -15C bin 1x1
Baader H-Alpha 36mm 7nm: 10x600" -15C bin 1x1
Baader H-Alpha 36mm 7nm: 10x600" -15C bin 2x2
Baader L: 18x180" -15C bin 1x1
Baader L: 5x20" -15C bin 1x1
Baader L: 5x60" -15C bin 1x1
R: 10x180" -15C bin 1x1
R: 4x20" -15C bin 1x1
R: 4x60" -15C bin 1x1

Integration: 6.6 hours

Basic astrometry details

Astrometry.net job: 3282715

RA center: 0h 42' 37"

DEC center: +41° 15' 32"

Pixel scale: 3.729 arcsec/pixel

Orientation: 205.508 degrees

Field radius: 2.158 degrees

Resolution: 3327x2508

Data source: Traveller


How far can you see? The most distant object easily visible to the unaided eye is M31, the great Andromeda Galaxy, over two million light-years away. Without a telescope, even this immense spiral galaxy appears as an unremarkable, faint, nebulous cloud in the constellation Andromeda. But a bright yellow nucleus, dark winding dust lanes, luminous blue spiral arms, and bright red emission nebulas are recorded in this stunning six-hour telescopic digital mosaic of our closest major galactic neighbor. While even casual skygazers are now inspired by the knowledge that there are many distant galaxies like M31, astronomers seriously debated this fundamental concept only 100 years ago. Were these "spiral nebulae" simply outlying gas clouds in our own Milky Way Galaxy or were they "island universes" -- distant galaxies of stars comparable to the Milky Way itself? This question was central to the famous Shapley-Curtis debate of 1920, which was later resolved by observations favoring Andromeda being just like our Milky Way Galaxy -- a conclusion making the rest of the universe much more vast than many had ever imagined. (APOD)

M31, M32 and M110 galaxy

Optic: Vixen VSD100 at F3
Mount: Software Bisque Paramount MX
Camera: SBIG STF8300M
Filters: Baader Ha(7nm) LRGB
Guider: SBIG Sti on 60mm GuideScope
Exposure: Ha: 5x60s + 10x600s + 10x 600s binning 2x2
L: 5x20s+5x60s+18x180s
R: 4x20s+4x60s+10x180s
G: 5x20s+5x60s+9x180s
B: 10x20s+10x60s+16x180s
Integration: 6.6 hours
Binning: All 1x1 Ha 1x1 and 2x2
Calibration: Flats, Dark, Dark Flat, Bias
CCD Sensor Temp: -15c
Dithering: Yes
Software: TheSkyX, ImagesPlus, Registar, PixInsight, Photoshop



Amir H. Abolfath
License: None (All rights reserved)

Sky plot

Sky plot




            Amir H. Abolfath

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