Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1795  ·  NGC 896
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Fish Head Nebula (IC 1795) SHO, 



    
        

            Jian Yuan Peng
Fish Head Nebula (IC 1795) SHO
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Fish Head Nebula (IC 1795) SHO

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)
Getting plate-solving status, please wait...
Fish Head Nebula (IC 1795) SHO, 



    
        

            Jian Yuan Peng
Fish Head Nebula (IC 1795) SHO
Powered byPixInsight

Fish Head Nebula (IC 1795) SHO

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Technical card

Imaging telescopes or lenses: TEC 160FL

Imaging cameras: ZWO ASI6200MM Pro

Mounts: Astro-Physics Mach 2 GTO

Guiding telescopes or lenses: TEC 160FL

Guiding cameras: ZWO ASI290MM Guide Camera

Focal reducers: Tec frc 0.9x Tec frc

Software: PHD2, Pixinsight, Lightroom, Sequence Generator Pro, Lightroom

Filters: Astrodon Tru-Balance Gen 2 - E-Series LRGB  ·  Astrodon 3nm Narrowband filters

Accessory: ZWO Off-Axis Guider


Dates:Nov. 9, 2020Nov. 12, 2020Nov. 19, 2020Nov. 27, 2020

Frames:
Astrodon 3nm Ha: 98x900" (24h 30') (gain: 0.00) -10C bin 2x2
Astrodon 3nm OIII: 81x900" (20h 15') (gain: 0.00) -10C bin 2x2
Astrodon 3nm SII: 74x900" (18h 30') (gain: 0.00) -10C bin 2x2
Astrodon Gen2 Blue: 74x60" (1h 14') (gain: 0.00) -10C bin 2x2
Astrodon Gen2 Green: 74x60" (1h 14') (gain: 0.00) -10C bin 2x2
Astrodon Gen2 Red: 74x60" (1h 14') (gain: 0.00) -10C

Integration: 66h 57'

Darks: ~32

Flats: ~32

Flat darks: ~32

Bias: ~128

Avg. Moon age: 16.59 days

Avg. Moon phase: 41.62%

Bortle Dark-Sky Scale: 7.00

Mean SQM: 20.00


Basic astrometry details

Astrometry.net job: 4049276

RA center: 2h 27' 12"

DEC center: +62° 1' 37"

Pixel scale: 0.784 arcsec/pixel

Orientation: 108.892 degrees

Field radius: 0.648 degrees


Resolution: 4724x3612

Locations: CourtYard, Palo Alto, CA, United States

Data source: Backyard

Description

Fish Head Nebula is located in a star-forming region in the northern constellation Cassiopeia and is about 6,000 light-years away. This colorful cosmic glowing gas and obscuring dust clouds look like the head of a fish.

This is a Hubble Palette (SHO) narrowband imaging that NASA tends to use RGB mapping with Sulphur II, Ha, OIII filter data. The stars are recorded through broadband filters.

Technical details:

Telescope: TEC 160FL + TEC FRC 0.9x

Mount: Astro-Physics Mach 2 GTO

Imaging cameras:ZWO ASI6200MM

Software: PHD2, PixInsight, Lightroom 6.4, Sequence Generator Pro, Photoshop CS6

Location: Palo Alto, California, USA

Resolution ............... 0.783 arcsec/px

Rotation ................. -89.906 deg

Observation start time ... 2020-11-09 03:55:28 UTC

Observation end time ..... 2020-11-27 11:00:38 UTC

Focal distance ........... 989.88 mm

Pixel size ............... 3.76 um

Field of view ............ 2d 5' 2.6" x 1d 23' 24.9" (before corp)

Image center ............. RA: 2 27 02.160 Dec: +61 51 13.98

Filters: Astrodon 50mm Unmounted LRGB Gen2 E-Series Filter Sets

Astrodon 50mm Unmounted 3nm Narrowband Ha, SII, OIII filters

Blue 74x60" 1 hour 14 Minutes Bin2x2 11/19/2020

Green 74x60" 1 Hour 14 Minutes Bin2x2 11/19/2020

Red 74x60" 1 Hour 14 Minutes Bin2x2 11/19/2020

Ha 98x900" 24 Hours 30 minutes Bin2x2 11/09 ~ 11/27/2020

OIII 81*900" 20 Hours 15 Minutes Bin2x2 11/09 ~ 11/27/2020

SII 74*900" 18 Hours 30Minutes Bin2x2 11/09 ~ 11/27/2020

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Fish Head Nebula (IC 1795) SHO, 



    
        

            Jian Yuan Peng

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