Hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Great Nebula in Andromeda  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 221  ·  NGC 224
Getting plate-solving status, please wait...
M31, 



    
        

            Nikhil Joshi
M31
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M31

Getting plate-solving status, please wait...
M31, 



    
        

            Nikhil Joshi
M31
Powered byPixInsight

M31

Technical card

Imaging telescopes or lenses: Takahashi FS-60C

Imaging cameras: SBIG 8300M

Mounts: Astro-Physics Mach-1 GTO

Guiding telescopes or lenses: Takahashi FS-60C

Guiding cameras: SBIG OAG8300 with ST-i

Software: Seqence Generator Pro  ·  PixInsight

Filters: Astrodon E-Series Tru-Balance [B]  ·  Astrodon E-Series Tru-Balance [Lum]  ·  Astrodon E-Series Tru-Balance [G]  ·  Astrodon E-Series Tru-Balance [R]


Dates:Oct. 1, 2016

Frames: 39x300" (3h 15')

Integration: 3h 15'

Avg. Moon age: 0.46 days

Avg. Moon phase: 0.24%


Basic astrometry details

Astrometry.net job: 1270108

RA center: 00h42m12s.7

DEC center: +41°1333

Pixel scale: 2.961 arcsec/pixel

Orientation: -80.140 degrees

Field radius: 1.704 degrees


Resolution: 3302x2502

Description

Working my way through Warren Keller's "Inside Pixinsight" with this project.

A: Had some blooming problems on the brighter stars, which I managed to reduce with a starmask and MorphologicalTranformation. Still a few color artifacts. Need to add HDR data and explore noise reduction.

B: Figured out RangeSelection and played with saturation using CurvesTransformation.

C: Version B had a greenish halo around the galaxy b/c the mask wasn't constrained well. Used a tighter mask in C and adjusted saturation, CIE-L, and contrast with CT as in version B.

Comments

Revisions

  • M31, 



    
        

            Nikhil Joshi
    Original
  • M31, 



    
        

            Nikhil Joshi
    B
  • Final
    M31, 



    
        

            Nikhil Joshi
    C

Sky plot

Sky plot

Histogram

M31, 



    
        

            Nikhil Joshi

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