Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  10 Cas  ·  9 Cas  ·  NGC7788  ·  PK116+00.1  ·  PK118+02.1  ·  Sh2-170  ·  The star 10Cas  ·  The star 9Cas
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CTB1 & LITTLE ROSETTE, 



    
        

            Anis Abdul
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CTB1 & LITTLE ROSETTE

Imaging telescopes or lenses: Takahashi FSQ 106ED

Imaging cameras: QHYCCD QHY600m

Mounts: Astro-Physics AP 900 GTO CP3

Guiding telescopes or lenses: Takahashi FSQ 106ED

Guiding cameras: QHYCCD QHY5-L-II-M

Filters: Chroma 3nm OIII 50mm  ·  Chroma SII 50mm 3nm  ·  Chroma H-alpha 50mm 3nm

Accessory: QHYCCD OAG-M  ·  QHYCCD CFW3-L 7-position  ·  Gerd Neumann CTU-M68


Dates:Dec. 25, 2020

Frames: 67x900"

Integration: 16.8 hours

Avg. Moon age: 10.50 days

Avg. Moon phase: 80.76%


Astrometry.net job: 4145364

RA center: 23h 59' 52"

DEC center: +63° 16' 34"

Pixel scale: 3.474 arcsec/pixel

Orientation: -90.260 degrees

Field radius: 2.309 degrees


Resolution: 4000x2628

Data source: Own remote observatory

Remote source: Stellar Skies LLC

Description

This field has so many things going on. I have shot CTB1 (A super nova remnant) before, but with this FOV, I could get the little rosette in the field as well. The interesting thing is the fainter shock wave type object between the two. I tried to push for getting more structure on that but I think the integration time is not enough for that. The overall field contains lot of faint signal. It is not clear if the central faint structure is related to the CTB1 or is a different SNR. It will be interesting to try and go deep on that object to see if any more structure can be seen. It is similar to the spaghetti nebula (another SNR)

This is a modified SHO (With mix of S and O in G channel). The SII and Ha have similar signals with OIII having signal in top half of CTB1 and in the core of the little rosette.

Ha - 41*15 minutes
SII - 13*15 minutes
OIII - 13 * 15 minutes.

Comments

Revisions

    CTB1 & LITTLE ROSETTE, 



    
        

            Anis Abdul
    Original
  • Final
    CTB1 & LITTLE ROSETTE, 



    
        

            Anis Abdul
    B

B

Description: Reprocessed to a higher contrast style. Overall I think this needs more data. Pushing to get more detail on the CTB1 shell isnt working..

Uploaded: ...

Sky plot

Sky plot

Histogram

CTB1 & LITTLE ROSETTE, 



    
        

            Anis Abdul