Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)
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Sh2-188 (Firefox Nebula / Dolphin Nebula /  PK128-04.1 / LBN 633 / Simeis 22), 



    
        

            Chris Sullivan
Sh2-188 (Firefox Nebula / Dolphin Nebula /  PK128-04.1 / LBN 633 / Simeis 22)
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Sh2-188 (Firefox Nebula / Dolphin Nebula / PK128-04.1 / LBN 633 / Simeis 22)

Getting plate-solving status, please wait...
Sh2-188 (Firefox Nebula / Dolphin Nebula /  PK128-04.1 / LBN 633 / Simeis 22), 



    
        

            Chris Sullivan
Sh2-188 (Firefox Nebula / Dolphin Nebula /  PK128-04.1 / LBN 633 / Simeis 22)
Powered byPixInsight

Sh2-188 (Firefox Nebula / Dolphin Nebula / PK128-04.1 / LBN 633 / Simeis 22)

Technical card

Imaging telescopes or lenses: Explore Scientific PN-208/812 Carbon Fiber OTA

Imaging cameras: ZWO ASI 1600MM Cool

Mounts: SkyWatcher EQ6-R Pro

Guiding telescopes or lenses: ZWO Off Axis Guider

Guiding cameras: Starlight Xpress Lodestar Autoguider X2

Filters: Chroma OIII 3nm  ·  ZWO H-alpha 7nm  ·  Optolong H-alpha 7nm 1.25"  ·  Green  ·  Blue  ·  OIII  ·  Red

Accessory: Explore Scientific HR Coma Corrector


Dates:Oct. 24, 2018Oct. 25, 2018Jan. 6, 2019Jan. 11, 2019Jan. 14, 2019Oct. 4, 2020Nov. 4, 2020Nov. 5, 2020Nov. 6, 2020Nov. 7, 2020Nov. 8, 2020Nov. 9, 2020Nov. 10, 2020Nov. 11, 2020

Frames:
Blue: 78x60" (1h 18')
Green: 59x60" (59')
Optolong H-alpha 7nm 1.25": 83x300" (6h 55')
ZWO H-alpha 7nm: 87x300" (7h 15')
Chroma OIII 3nm: 183x300" (15h 15')
OIII: 35x300" (2h 55')
Red: 61x60" (1h 1')

Integration: 35h 38'

Avg. Moon age: 16.67 days

Avg. Moon phase: 57.67%

Bortle Dark-Sky Scale: 7.50


Basic astrometry details

Astrometry.net job: 4122647

RA center: 1h 30' 26"

DEC center: +58° 25' 51"

Pixel scale: 0.914 arcsec/pixel

Orientation: 3.943 degrees

Field radius: 0.530 degrees


Resolution: 3329x2517

Locations: Home Roof (Bortle 7-8 / Est. Sky Quality: 18.53), Springfield, PA, United States

Data source: Backyard

Description

This is going to be my last image for a while. In addition to not being able to do astrophotography due to work obligations, I also broke a push screw on my Ritchey-Chretien and can't get it out, so that scope is out of commission for the foreseeable future (there's literally no way to collimate it). I got a Moonlite for my Newt, but I have no idea when I'll be able to attach it, so unless I just want to put up with the focuser tilt that's been annoying me for ages, that scope is also out of commission until I can find the time to drill. I still haven't got replacement parts for my AZ-EQ5 and I have issues balancing smaller scopes on the EQ6-R, so the Sharpstar and ES80 are out of commission as well. I miss this hobby like crazy.

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