Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  Bubble nebula  ·  IC 1470  ·  M 52  ·  NGC 7538  ·  NGC 7635  ·  NGC 7654  ·  The star 1Cas  ·  The star 2Cas  ·  The star 4Cas
"Another two nights in the garden of Cepheus  - NGC 7538 region", 



    
        

            carl0s
"Another two nights in the garden of Cepheus  - NGC 7538 region"
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"Another two nights in the garden of Cepheus - NGC 7538 region"

Technical card

Imaging telescopes or lenses: Nikon NIKKOR 180mm f/2.8 ED AI-S

Imaging cameras: Canon, Baader modified Eos M

Mounts: iOptron SmartEQ Pro

Guiding telescopes or lenses: TS Optics 60mm Guidescope

Guiding cameras: Lacerta MGEN2

Software: PixInsight  ·  Magic Lantern  ·  Darktable

Filters: Optolong UHC 77mm


Dates:Aug. 25, 2016Aug. 31, 2016

Frames:Optolong UHC 77mm: 61x300" (5h 5') ISO320

Integration: 5h 5'

Darks: 8

Flats: 50

Bias: 50

Avg. Moon age: 25.60 days

Avg. Moon phase: 23.45%


Basic astrometry details

Astrometry.net job: 1226270

RA center: 23h12m42s

DEC center: +61°3625

Pixel scale: 4.895 arcsec/pixel

Orientation: 90.797 degrees

Field radius: 4.257 degrees


Resolution: 620x414

Description

After two nights of imaging the NGC7538 region , I found lot of red star halos and strange colors on my hardrive. A UHC filter and an older lens gave me the opportunity to train my image processing skills. Some focusing issues have eaten 3h of the overall 8h data. But the rich Cepheus region is worth all the efforts :-) I probably should acquire some proper RGB and reprocess the image.

Revision A shows the integrated and stretched image.

Comments

Revisions

  • "Another two nights in the garden of Cepheus  - NGC 7538 region", 



    
        

            carl0s
    Original
  • Final
    "Another two nights in the garden of Cepheus  - NGC 7538 region", 



    
        

            carl0s
    B

Sky plot

Sky plot

Histogram

"Another two nights in the garden of Cepheus  - NGC 7538 region", 



    
        

            carl0s