Celestial hemisphere:  Southern  ·  Constellation: Canis Major (CMa)  ·  Contains:  NGC 2359
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NGC2359 Thor's Helmet (H+S)OO + RGB stars, Jian Yuan Peng
NGC2359 Thor's Helmet (H+S)OO + RGB stars
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NGC2359 Thor's Helmet (H+S)OO + RGB stars

Getting plate-solving status, please wait...
NGC2359 Thor's Helmet (H+S)OO + RGB stars, Jian Yuan Peng
NGC2359 Thor's Helmet (H+S)OO + RGB stars
Powered byPixInsight

NGC2359 Thor's Helmet (H+S)OO + RGB stars

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Description

This image is a modified HOO image where the red channel is combined Ha and 0.25*SII to increase the red color of the curved bow on the helmet. Stars are from RGB data.

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NGC2359, aka Thor's Helmet, is an emission nebula in the constellation Canis Major, the Great Dog. The nebula is approximately 11.96 thousand light-years away and 30 light-years in size. Its core, WR7, is an extremely hot Wolf-Rayet star estimated 2800,000 times brighter than Sun and 16 times more massive.

Technical details:

Telescope: Celestron Edge HD11 + Reducer 0.7x

Mount: Ioptron CEM60

Imaging cameras:ZWO ASI1600MM

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

Location: Palo Alto, California, USA

PhotometricColorCalibration data:

Resolution ............... 0.200 arcsec/px

Rotation ................. -67.669 deg

Observation start time ... 2021-01-01 06:45:16 UTC

Observation end time ..... 2021-02-06 08:13:02 UTC

Focal distance ........... 1961.04 mm

Pixel size ............... 1.90 um

Field of view ............ 29' 57.6" x 22' 31.9"

Image center ............. RA: 7 18 33.370 Dec: -13 12 54.63

Filters: Astrodon 1.25" LRGB Gen2 E-Series Filter Sets

Astrodon 1.25" 3nm Narrowband Ha, SII, OIII filters

Blue 40x60" 40 Minutes Bin1x1

Green 39x60" 39 Minutes Bin1x1

Red 42x60" 42 Minutes Bin1x1

Ha 35x600" 37x900" 15.08 Hours Bin1x1

OIII 30x600" 36x900" 14 Hours Bin1x1

SII 35x600" 34x900" 14.3 Hours Bin1x1

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NGC2359 Thor's Helmet (H+S)OO + RGB stars, Jian Yuan Peng