Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent nebula  ·  NGC 6888
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Crescent Nebula, 



    
        

            pterodattilo
Crescent Nebula
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Crescent Nebula

Technical card

Imaging telescopes or lenses: SkyWatcher Newton 200mm f/4

Imaging cameras: Canon 700D

Mounts: EQ6-R

Guiding telescopes or lenses: Orion Shorttube 80A Orion ShortTube

Guiding cameras: Orion Starshoot Autoguider

Software: Startools  ·  PHD2  ·  APT - Astro Photography Tool  ·  Deep Sky Tracker

Filters: Hutech IDAS 2" LPS D1

Accessory: Skywatcher Coma corrector


Dates:June 17, 2017June 29, 2017July 3, 2017

Frames:
226x60" ISO1600 28C
42x240" ISO400 28C
Astronomik 12nm Ha Clip-In Filter: 31x240" ISO1600 28C

Integration: 8.6 hours

Darks: ~23

Flats: ~33

Flat darks: ~30

Bias: ~30

Avg. Moon age: 12.58 days

Avg. Moon phase: 52.50%

Bortle Dark-Sky Scale: 4.67

Temperature: 26.00


Basic astrometry details

Astrometry.net job: 1699913

RA center: 20h 11' 56"

DEC center: +38° 27' 57"

Pixel scale: 1.727 arcsec/pixel

Orientation: 269.148 degrees

Field radius: 0.886 degrees


Resolution: 3052x2332

Locations: Rastignano, Pianoro, Bologna, Italy

Data source: Backyard

Description

FOUR nights to have enough data to sum but result is pretty nice
still, I'm not completely satisfied, I'd like to get crispier images but probably part of the problem is in the nature of my observing site (high IL, low seeing)
Update: added H Alpha data, so proud first time we are using H Alpha ad the result is *way* more better

Comments

Revisions

  • Crescent Nebula, 



    
        

            pterodattilo
    Original
  • Crescent Nebula, 



    
        

            pterodattilo
    B
  • Crescent Nebula, 



    
        

            pterodattilo
    C
  • Crescent Nebula, 



    
        

            pterodattilo
    D
  • Final
    Crescent Nebula, 



    
        

            pterodattilo
    E

B

Description: with H Alpha data

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Sky plot

Sky plot

Histogram

Crescent Nebula, 



    
        

            pterodattilo

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