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Hemisphere:  Northern
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Sh2-216 and 221 in Auriga with Astrel8300, 



    
        

            tommy_nawratil
Sh2-216 and 221 in Auriga with Astrel8300, 



    
        

            tommy_nawratil

Sh2-216 and 221 in Auriga with Astrel8300

Technical card

Imaging telescopes or lenses: Sigma 180 mm F2,8 EX APO Macro OS HSM

Imaging cameras: Astrel Instruments AST8300

Mounts: HEQ5 Pro

Guiding telescopes or lenses: Skywatcher 9x50 finder

Guiding cameras: Lacerta MGEN

Software: Photoshop  ·  Pleiades Astrophoto, S.L. Pix Insight

Filters: Astronomik H-Alpha 12nm  ·  Astronomik LRGB 31mm


Dates:Dec. 3, 2016

Frames: 148x480"

Integration: 19.7 hours

Avg. Moon age: 3.63 days

Avg. Moon phase: 14.16%


Basic astrometry details

Astrometry.net job: 3265677

RA center: 4h 52' 3"

DEC center: +46° 54' 3"

Pixel scale: 6.334 arcsec/pixel

Orientation: 12.003 degrees

Field radius: 3.602 degrees


Resolution: 3273x2461

Locations: my lovely garden, near Vienna, Austria

Data source: Traveller

Description

Sharpless 216 is a huge and dim planetary nebula, the bubble at right in this picture. Sharpless 221 is an ancient Supernova remnant, even dimmer at left, typically built up of lots of filaments. Both are glowing at Hydrogen and Oxygen lines, and their distinctly different appearance make for a great motiv. The intense red blob north of 221 is Sh2-217 and the smaller one next to 221 is Sh2-219. Between the two majors here sits another medium size H-Alpha region without Sharpless number, dubbed BFS44, that contains a dark nebula called B25. The whole region is very near to bright Capella, which resides just left of the field.

Lots of numbers, but nothing in the mouseover :-)

17+8+13+9 LRGB each 8min subs and 37x15min Ha and 17x15min OIII
Sigma 180 Macro at f/2,8
Astrel 8300 mono controlled by a Android tablet,
Astronomik L2/RGB Deepsky/Ha12nm/OIII12nm.

Comments

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tommy_nawratil
tommy_nawratil
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  • Final
    Sh2-216 and 221 in Auriga with Astrel8300, 



    
        

            tommy_nawratil
    Original
    Sh2-216 and 221 in Auriga with Astrel8300, 



    
        

            tommy_nawratil
    B

B

Description: annotated image

Sky plot

Sky plot

Histogram

Sh2-216 and 221 in Auriga with Astrel8300, 



    
        

            tommy_nawratil