Hemisphere:  Northern  ·  Contains:  The star Alderamin (αCep)
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Flying Bat Nebula, 



    
        

            sergio.diaz
Flying Bat Nebula, 



    
        

            sergio.diaz

Flying Bat Nebula

Technical card

Imaging telescopes or lenses: Canon 200 mm f/2.8 L II USM

Imaging cameras: Moravian Instruments G2-8300FW

Mounts: SkyWatcher AZ-EQ6 GT

Guiding telescopes or lenses: Orion Guidescope 60mm

Guiding cameras: ZWO ASI 120 MM-S

Software: PixInsight 1.8  ·  INDILib  ·  Kstars team Kstars/Ekos

Filters: Baader Planetarium LRGB


Dates:Aug. 23, 2020

Frames: 56x300"

Integration: 4.7 hours

Avg. Moon age: 4.94 days

Avg. Moon phase: 25.17%


Basic astrometry details

Astrometry.net job: 3900444

RA center: 21h 6' 46"

DEC center: +60° 33' 39"

Pixel scale: 5.727 arcsec/pixel

Orientation: 2.070 degrees

Field radius: 3.318 degrees


Resolution: 2506x3334

Locations: Sierra de Hornachos, Hornachos, Badajoz, Spain

Data source: Traveller

Description

At the southwest of Alderamin (top left), in Cepheus, lies this faint (fainter than I though, at least) HII nebula, catalogued as Sh2-129 . Also interesting are the few black patches that surround the nebula, especially LDN1082, for a longer focal length.

To me, the most prominent feature are eyes of the bat, the two stars that look similar in magnitude but have strikingly different colors. The bluish one is indeed embedded in the Squid Nebula (Ou4), that is not visible in this image, needing very deep exposures with [O III] filters to show up.

So maybe I guess this is again the same old 'work in progress/needs more data' story. Yeah, you know exactly what I'm talking about, don't you?

200mm, f/4
L: 26x 300s
R: 10x 300s
G: 10x 300s
B: 10x 300s

Comments

Author

sergio.diaz
sergio.diaz
License: None (All rights reserved)
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Revisions

  • Final
    Flying Bat Nebula, 



    
        

            sergio.diaz
    Original
  • Flying Bat Nebula, 



    
        

            sergio.diaz
    B

B

Description: Annotated version (PixInsight)

Sky plot

Sky plot

Histogram

Flying Bat Nebula, 



    
        

            sergio.diaz