Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)
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"Cave Nebula" with modified Newtonian reflector, 



    
        

            Michael S.
"Cave Nebula" with modified Newtonian reflector
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"Cave Nebula" with modified Newtonian reflector

Getting plate-solving status, please wait...
"Cave Nebula" with modified Newtonian reflector, 



    
        

            Michael S.
"Cave Nebula" with modified Newtonian reflector
Powered byPixInsight

"Cave Nebula" with modified Newtonian reflector

Technical card

Imaging telescopes or lenses: Lacerta Carbon Photonewton 254/1200

Imaging cameras: NIKON D810a

Mounts: Skywatcher EQ8 Pro

Guiding telescopes or lenses: Skywatcher EvoGuide 50ED

Guiding cameras: Lacerta MGEN 3 Camera

Focal reducers: Pal Gyulai GPU Koma Korrector

Software: PixInsight 1.8

Accessory: Lacerta MGEN 3 autoguider


Dates:July 12, 2020July 14, 2020

Frames: 36x600"

Integration: 6.0 hours

Darks: ~30

Flats: ~30

Bias: ~70

Avg. Moon age: 22.61 days

Avg. Moon phase: 45.19%

Bortle Dark-Sky Scale: 5.00

Mean SQM: 20.70

Mean FWHM: 3.00

Temperature: 14.00


Basic astrometry details

Astrometry.net job: 3673112

RA center: 22h 57' 33"

DEC center: +62° 27' 10"

Pixel scale: 2.260 arcsec/pixel

Orientation: 356.841 degrees

Field radius: 0.952 degrees


Resolution: 2500x1719

Locations: My lovely garden, J-City, Burgenland, Austria

Data source: Backyard

Description

Ok, got my old Newtonian modified, edition 2020 you may say. And the "Cave Nebula" is a lovely object - mix of 3 different types of nebulae - emission, reflection and dark nebula.

The following modifications have been made:
+) new velor covering the inside of the tube
+) main mirror got an aperture ring on the outside to improve the star spikes
+) second mirror got new (black) colour to suppress reflections
+) new, improved focuser with steel inlays
+) the "spider" holding the secondary mirror is now in a matte finish

Comments

Revisions

    "Cave Nebula" with modified Newtonian reflector, 



    
        

            Michael S.
    Original
  • Final
    "Cave Nebula" with modified Newtonian reflector, 



    
        

            Michael S.
    B

B

Description: Glad I could add data from a second night and therefore double the total exposure time. ;-)

Uploaded: ...

Sky plot

Sky plot

Histogram

"Cave Nebula" with modified Newtonian reflector, 



    
        

            Michael S.