Hemisphere:  Northern  ·  Constellation: Aquila (Aql)  ·  Contains:  HD176651  ·  LBN 103  ·  PK036-01.1  ·  Sh2-71
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Sh2-71 Planetary Nebula (Ha(RGB+HaO3)), 



    
        

            Ruediger
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Sh2-71 Planetary Nebula (Ha(RGB+HaO3))

Getting plate-solving status, please wait...
Sh2-71 Planetary Nebula (Ha(RGB+HaO3)), 



    
        

            Ruediger
Powered byPixInsight

Sh2-71 Planetary Nebula (Ha(RGB+HaO3))

Acquisition details

Dates:
June 19, 2022
Frames:
Baader Blue (CMOS-Optimized): 9×120(18′) (gain: 0.00) -15°C bin 2×2
Baader Green (CMOS-Optimized): 10×120(20′) (gain: 0.00) -15°C bin 2×2
Baader H-alpha Ultra-Narrowband 3.5nm (CMOS-Optimized) 50.4 mm: 30×600(5h) (gain: 100.00) -15°C bin 2×2
Baader O-III Ultra-Narrowband 4nm (CMOS-Optimized) 50.4 mm: 29×600(4h 50′) (gain: 100.00) -15°C bin 2×2
Baader Red (CMOS-Optimized): 8×120(16′) (gain: 0.00) -15°C bin 2×2
Integration:
10h 44′
Darks:
30
Flats:
15
Flat darks:
15
Avg. Moon age:
20.46 days
Avg. Moon phase:
67.61%
Bortle Dark-Sky Scale:
6.00
Mean SQM:
20.20
Mean FWHM:
3.50
Temperature:
22.00

RA center: 19h01m35s.524

DEC center: +02°0633.50

Pixel scale: 0.601 arcsec/pixel

Orientation: -0.129 degrees

Field radius: 0.265 degrees

WCS transformation: thin plate spline

More info:Open 

Resolution: 2760x1553

File size: 16.2 MB

Locations: Balcony observatory, Ansbach, Bavaria, Germany

Data source: Backyard

Description

Hello Friends,

again I was going for a rarely imaged object: Sh2-71

Probably of its size, it is out of reach for smaller setups. There are only around a dozen images of Sh2-71 on AB. But I wonder, why it is not imaged more often by the larger setups, since it is outstanding nice.

SH2-71 is a very structured and complex Planetary Nebula emitting strongly in Ha. The complex structure can be seen in Ha only. Therefore I have added the Ha-stack too. Unfortunately it is not so obvious and noticeable in the final composite, though I used the Ha stack as lum-layer. Processing was tricky and I have discarded many approaches, but I have learned a lot again.

I hope you enjoy this unusal and rare object

Please enjoy!
Rüdiger

Comments

Revisions

  • Final
    Sh2-71 Planetary Nebula (Ha(RGB+HaO3)), 



    
        

            Ruediger
    Original
  • Sh2-71 Planetary Nebula (Ha(RGB+HaO3)), 



    
        

            Ruediger
    B

B

Title: HA Stack

Description: Just to illustrate the complex structure of the PN

Uploaded: ...

Sky plot

Sky plot

Histogram

Sh2-71 Planetary Nebula (Ha(RGB+HaO3)), 



    
        

            Ruediger