Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  The star 12Cas
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Sh2-173 | Phantom of the Opera, 



    
        

            Marco Prelini
Sh2-173 | Phantom of the Opera
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Sh2-173 | Phantom of the Opera

Technical card

Imaging telescopes or lenses: Sky-Watcher 200/1000 PDS

Imaging cameras: ZWO ASI 294MC Pro

Mounts: Sky-Watcher AZ EQ6-GT

Guiding telescopes or lenses: Artesky Ultraguide 60/240 mm

Guiding cameras: ZWO ASI 120 MM Mini

Focal reducers: Baader MPCC Mark III

Software: Photoshop CC  ·  Sequence Generator Pro  ·  PixInsight

Filters: Baader UV/IR Cut  ·  Baader Ha 2" 7nm CCD


Dates:Sept. 20, 2020Sept. 23, 2020

Frames:
Baader Ha 2" 7nm CCD: 16x480" (gain: 120.00) 0C bin 1x1
Baader UV/IR Cut: 26x600" (gain: 120.00) -10C bin 1x1

Integration: 6.5 hours

Darks: ~31

Flats: ~31

Flat darks: ~31

Avg. Moon age: 5.14 days

Avg. Moon phase: 28.45%

Bortle Dark-Sky Scale: 5.50

Mean SQM: 20.05

Temperature: 15.00


Basic astrometry details

Astrometry.net job: 3960386

RA center: 0h 22' 24"

DEC center: +61° 44' 9"

Pixel scale: 0.946 arcsec/pixel

Orientation: 6.329 degrees

Field radius: 0.642 degrees


Resolution: 4070x2700

Locations: Home Backyard, Meda, Milano, Italy; Osservatorio di Febbio, Febbio, Reggio Emilia, Italy

Data source: Backyard

Description

Shot in RGB from a very dark sky and HA from the opposite: a very light polluted region. This little bastard is hard and RGB was half a failure.
Luckly narrowband version gave me enough light to complete the picture.

Comments

Revisions

  • Final
    Sh2-173 | Phantom of the Opera, 



    
        

            Marco Prelini
    Original
    Sh2-173 | Phantom of the Opera, 



    
        

            Marco Prelini
    B

B

Description: Shot in RGB from a very dark sky and HA from the opposite: a very light polluted region. This little bastard is hard and RGB half a failure. Luckly narrowband version gave me enough light complete the picture.

Uploaded: ...

Sky plot

Sky plot

Histogram

Sh2-173 | Phantom of the Opera, 



    
        

            Marco Prelini