Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Contains:  IC 59, IC 63, The star Navi (γCas), gamma Cas nebula
Getting plate-solving status, please wait...
The Ghost of Cassiopeia - IC 63 & 59, 



    
        

            Luca Marinelli
The Ghost of Cassiopeia - IC 63 & 59
Powered byPixInsight

The Ghost of Cassiopeia - IC 63 & 59

Technical card


Resolution: 3202x2584

Dates:Aug. 30, 2019Aug. 31, 2019Sept. 1, 2019Sept. 12, 2019

Frames:
Hutech IDAS LPS-P2 36mm Filter: 566x60" (gain: 120.00) -15C bin 1x1
Astrodon Narrowband 5nm Ha: 50x360" (gain: 139.00) -20C bin 1x1

Integration: 14.4 hours

Darks: ~50

Flats: ~20

Flat darks: ~50

Bias: 0

Avg. Moon age: 4.25 days

Avg. Moon phase: 26.43%

Bortle Dark-Sky Scale: 5.00


Basic astrometry details

Astrometry.net job: 2925053

RA center: 0h 59' 55"

DEC center: +60° 52' 48"

Pixel scale: 1.797 arcsec/pixel

Orientation: 162.381 degrees

Field radius: 1.027 degrees


Locations: Home Observatory, Schenectady, New York, United States

Data source: Backyard

Description

Gamma Cassiopeiae or Navi is a blue-white, sub-giant, eruptive variable star with a magnitude that changes between +1.6 and +3.0 erratically. Both Navi and the reflection-emission nebula IC 63 are located at a distance of roughly 550 light years from us. The Ghost of Cassiopeia (IC 63) and its neighbor IC 59 are rich in hydrogen and glow red due to the intense ultraviolet radiation from Gamma Cass. The blue signal from the nebula is indicative of presence of cold interstellar dust, which reflects the strong light from Navi.

This image is a first light with the ZWO ASI294MC Pro for me. The camera has impressive dynamic range and was able to tame Gamma Cass with no ugly sensor pattern and very little in terms of reflections. After I finished processing the RGB data, I decided I wanted to pull more detail from the Ha nebulosity and collected an additional 5 hours of data with the Ha filter and a mono camera. Ha data was used to strengthen the red channel and to improve the detail in the luminance channel.

ZWO ASI294MC Pro @ -15C
Gain: 120, Offset: Not set (default)
IDAS LPS-P2 filter

ZWO ASI1600MM Pro @ -20C
Gain:139, Offset: 50
Astrodon Ha 5nm filter

Comments

Author

lucam_astro
Luca Marinelli
License: None (All rights reserved)
4712
Like

Revisions

  • The Ghost of Cassiopeia - IC 63 & 59, 



    
        

            Luca Marinelli
    Original
  • The Ghost of Cassiopeia - IC 63 & 59, 



    
        

            Luca Marinelli
    E
  • Final
    The Ghost of Cassiopeia - IC 63 & 59, 



    
        

            Luca Marinelli
    F

E

Description: Adjusted Navi brightness and color.

F

Description: Added 5 hours of Ha with the ASI1600 camera. Ha was added both to the red channel and to luminance.

Sky plot

Sky plot

Histogram

The Ghost of Cassiopeia - IC 63 & 59, 



    
        

            Luca Marinelli