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NGC2359

Thor’s Helmet, or by it’s formal categorisation NGC2359, is located in the constellation Canis Major (The Great Dog) and is an emission nebula. The energy powering the emissions is sourced from a central, extremely hot, Wolf Rayet star WR7. WR7 is believed to be in a pre-supernova stage.

The nebula has a central bubble shape which is formed by the energy pressure from WR7, however as it is only several hundred solar masses of ionised gas out of several thousand solar masses of gas in the region, the interactions with the dark molecular cloud it is enclosed within has formed the additional complex filament structures.

Right Ascension : 07h 18′ 30″
Declination : -13d 13.8′
Constellation : Canis Major
Apparent Magnitude: +11.45
Distance : 11,960 ly
Radius : 15 ly
Apparent Size : 8′ x 8′

Thors Helmet

NGC2359 – Thor’s Helmet

My first attempt at Thor’s Helmet (NGC2359) with a HOO bi colour image taken through the start of January 2021.

January 11, 2021 in ASI1600mm-C, GSO RC10 Truss, NGC2359, Skywatcher EQ8.

Gallery

Full moon Aug 14 moon_2015_05_23 Cat's Paw colorised 1_M16 M20_DC HOO Obs-CEM60 20200801_155711

Current Moon Phase


Waning Gibbous Moon
Waning Gibbous Moon

The moon is currently in Capricorn
The moon is 18 days old

Distance: 61 earth radii
Ecliptic latitude: -3 degrees
Ecliptic longitude: 299 degrees
Joe's

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