Hemisphere:  Northern  ·  Contains:  PK083-08.1  ·  Sh2-113
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Sh2 113 H-alpha RGB, 



    
        

            jerryyyyy
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Sh2 113 H-alpha RGB

Imaging telescopes or lenses: Stellarvue SVT 130T

Imaging cameras: SBIG STT 8300M

Mounts: Astro-Physics Mach1AP GTO CP4

Guiding telescopes or lenses: Stellarvue SVT 130T

Guiding cameras: SBIG STT 8300M

Software: CCDWare FocusMax V.4  ·  PixInsight  ·  Software Bisque TheSky X Professional  ·  Maxim DL  ·  EQMOD  ·  DC-3 Dreams ACP Observatory Control Software  ·  Astro-Physics Command Center (APCC) Software

Filters: Astrodon Red Tru-Balance E-Series Generation 2  ·  Astrodon Blue Tru-Balance E-Series Gen 2  ·  Astrodon Green Tru-Balance E-Series Gen 2  ·  AstroDon 5nm Ha filter

Accessory: Moonlite Nitecrawler 3.5  ·  Tolga Astro Alnitak Flat-Man Electroluminescent Flat Fielding Device


Dates:Nov. 8, 2019

Frames:
Astrodon Blue Tru-Balance E-Series Gen 2: 15x240" bin 1x1
Astrodon Green Tru-Balance E-Series Gen 2: 15x240" ISO-1
Astrodon H-alpha 5nm: 16x1800" bin 1x1
Astrodon Red Tru-Balance E-Series Generation 2: 15x240" bin 1x1

Integration: 11.0 hours

Avg. Moon age: 11.01 days

Avg. Moon phase: 84.86%


Astrometry.net job: 3041433

RA center: 21h 20' 54"

DEC center: +38° 5' 28"

Pixel scale: 1.220 arcsec/pixel

Orientation: -0.020 degrees

Field radius: 0.675 degrees


Resolution: 3145x2443

Locations: Stanford Faculty Observatory, Stanford, California, United States

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

Sh 2-113 and Sh 2-114 form, respectively, the southern and northern portions of a filamentary circle that resembles a supernova remnant. However, no supernova remnant appears to be recorded for this location.

Examining this region in hydrogen-alpha suggests that these nebulae are joined to the equally mysterious Sh 2-118 and Sh 2-123 in a long ridge of nebulosity south and south-east of Sh 2-117, the North American nebula. Sh 2-113, Sh 2-118 and Sh 2-123 have distance estimates of about 4000 parsecs. If this ridge is also at 4000 parsecs, it must be enormous.

From:

http://galaxymap.org/cat/list/sharpless/111

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Sh2 113 H-alpha RGB, 



    
        

            jerryyyyy