Hemisphere:  Northern  ·  Constellation: Perseus (Per)  ·  Contains:  Extremely wide field
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CA Nebula, Perseus Molecular Cloud and Pleiades, 



    
        

            S. Stirling
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CA Nebula, Perseus Molecular Cloud and Pleiades

Getting plate-solving status, please wait...
CA Nebula, Perseus Molecular Cloud and Pleiades, 



    
        

            S. Stirling
Powered byPixInsight

CA Nebula, Perseus Molecular Cloud and Pleiades

Technical card

Imaging telescopes or lenses: Samyang 135mm T2.2 ED UMC

Imaging cameras: Canon 6D Modified Hutech Canon 6D

Mounts: iOptron SkyGuider Pro

Software: PixInsight 1.8

Accessory: Dew-Not 3" Dew Heater  ·  Celestron Power Tank Celestron PowerTank Lithium Pro


Dates:Sept. 29, 2019Oct. 24, 2019

Frames:
30x120" (1h) ISO800
34x180" (1h 42') ISO800

Integration: 2h 42'

Darks: ~25

Flats: ~38

Bias: ~61

Avg. Moon age: 13.11 days

Avg. Moon phase: 9.58%

Bortle Dark-Sky Scale: 2.00

Temperature: 4.50


Astrometry.net job: 3012191

RA center: 3h 46' 10"

DEC center: +31° 7' 57"

Pixel scale: 10.379 arcsec/pixel

Orientation: -65.547 degrees

Field radius: 9.406 degrees


Resolution: 5466x3580

Locations: Staunton River State Park, Scottsburg, VA, United States; Pettigrew State Park, Cresswell, NC, United States

Data source: Traveller

Description

Inspired by RBA's From California to the Pleiades from 2013 (a mosaic using a Takahashi FSQ), using 135mm and Canon 6D (full frame sensor) to see how much can fit in the field of view. The first hour result is from part of the night during a new moon at a dark sky site in NC (Pettigrew State Park) 9/29/2019. The second result adds 1.7 hrs more data from another dark sky site in NC (Staunton River State Park) 10/24/2019.

In the first set, all the subframes were at f/2.2 and ISO 800. I learned after that trip that the Samyang wide open at f/2.2 results in somewhat butterfly shaped artifacts around bright stars up close.

So the second set is at f/2.8 and ISO 1800. I used GradientMergeMosaic after aligning the masters from the two nights.

Comments

Revisions

  • CA Nebula, Perseus Molecular Cloud and Pleiades, 



    
        

            S. Stirling
    Original
  • CA Nebula, Perseus Molecular Cloud and Pleiades, 



    
        

            S. Stirling
    B
  • Final
    CA Nebula, Perseus Molecular Cloud and Pleiades, 



    
        

            S. Stirling
    D

B

Description: HDRMT, ACDNR

Uploaded: ...

D

Description: More data, combined with earlier data.

Uploaded: ...

Sky plot

Sky plot

Histogram

CA Nebula, Perseus Molecular Cloud and Pleiades, 



    
        

            S. Stirling