Getting plate-solving status, please wait...
The Pleiades (M45), 



    
        

            Luca Marinelli

The Pleiades (M45)

Imaging telescopes or lenses: Takahashi FSQ 106 EDX4

Imaging cameras: Atik 383L+ Monochrome

Mounts: SkyWatcher EQ6-R Pro (EQMOD)

Guiding telescopes or lenses: Baader Planetarium Baader Vario 60mm F4.1

Guiding cameras: ZWO ASI 290 MM MINI

Focal reducers: Takahashi CR Reducer 0.73x

Software: Photoshop CC  ·  PIXINSIGHT 1.8  ·  Seqence Generator Pro  ·  PHD2 Guiding PHD2 v2.6.5

Filters: Astrodon Tru-Balance Gen2 E-Series - B 36mm  ·  Astrodon Tru-Balance Gen2 E-Series - G 36mm  ·  Astrodon Tru-Balance Gen2 E-Series - R 36mm  ·  Astrodon Tru-Balance Gen2 E-Series - L 36mm

Accessory: ZWO EFW 7 x 36mm  ·  Optec FocusLynx QuickSync FSQ Motor


Dates:Jan. 5, 2019Jan. 6, 2019Jan. 7, 2019Jan. 11, 2019Jan. 12, 2019

Frames:
Astrodon Tru-Balance Gen2 E-Series - B 36mm: 47x120" -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - B 36mm: 30x60" -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - G 36mm: 70x120" -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - L 36mm: 43x45" -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - L 36mm: 151x60" -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - R 36mm: 30x120" -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - R 36mm: 30x180" -20C bin 1x1

Integration: 10.0 hours

Darks: ~50

Flats: ~20

Bias: ~100

Avg. Moon age: 8.26 days

Avg. Moon phase: 11.94%

Bortle Dark-Sky Scale: 5.00


Basic astrometry details

Astrometry.net job: 2471366


Resolution: 2454x3067

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

Data source: Backyard

Description

The Pleiades (M45) is an open cluster in Taurus and a jewel box of the Winter sky in the United States.

I went back to the Atik 383L+ for this image, in spite of the lower resolution, to avoid artifacts around the bright stars in the cluster. The little old CCD camera delivered once more.

I imaged the cluster with the Takahashi FSQ106EDX4 with the CR x0.73 reducer (focal length 385mm at f/3.6). The image scale is 2.9 arc-sec/pixel, which is quite undersampled even for the Northeastern USA. I drizzle integrated the color and luminance data and ultimately downsampled back to native sensor resolution.

Comments

Revisions

  • The Pleiades (M45), 



    
        

            Luca Marinelli
    Original
  • The Pleiades (M45), 



    
        

            Luca Marinelli
    B
  • The Pleiades (M45), 



    
        

            Luca Marinelli
    C
  • Final
    The Pleiades (M45), 



    
        

            Luca Marinelli
    D

B

Description: Adjusted contrast, saturation, and black point.

Uploaded: ...

C

Description: Adjusted bright star processing.

Uploaded: ...

D

Description: Adjusted bright star processing and saturation of emission component of Merope nebula (red).

Uploaded: ...

Sky plot

Sky plot

Histogram

The Pleiades (M45), 



    
        

            Luca Marinelli