Hemisphere:  Southern  ·  Constellation: Canis Major (CMa)  ·  Contains:  NGC 2359
Getting plate-solving status, please wait...
NGC 2359 Thor’s Helmet in Canis Major, 



    
        

            Mark Wetzel
NGC 2359 Thor’s Helmet in Canis Major
Powered byPixInsight

NGC 2359 Thor’s Helmet in Canis Major

Getting plate-solving status, please wait...
NGC 2359 Thor’s Helmet in Canis Major, 



    
        

            Mark Wetzel
NGC 2359 Thor’s Helmet in Canis Major
Powered byPixInsight

NGC 2359 Thor’s Helmet in Canis Major

Technical card

Imaging telescopes or lenses: Celestron C9.25 Edge HD

Imaging cameras: ZWO ASI 1600MM-Pro Cool

Mounts: Celestron CGEMⅡ

Guiding telescopes or lenses: Celestron C9.25 Edge HD

Guiding cameras: ZWO 174MM Mini

Focal reducers: Celestron 0.7x Focal Reducer

Software: Celestron CPWI  ·  Main Sequence Software Seqence Generator Pro 3  ·  Pleiades Astrophoto PinInsight  ·  Adobe Photoshop CC 2021 Photoshop 2021  ·  PHD 2

Filters: ZWO 36mm 7nm OIII  ·  ZWO 36mm 7nm Ha

Accessory: Celestron OAG


Dates:Jan. 12, 2021Jan. 14, 2021

Frames:
ZWO 36mm 7nm Ha: 52x600" (8h 40') (gain: 139.00) -10C bin 1x1
ZWO 36mm 7nm OIII: 52x600" (8h 40') (gain: 139.00) -10C bin 1x1

Integration: 17h 20'

Darks: ~25

Flats: ~50

Flat darks: ~50

Avg. Moon age: 15.08 days

Avg. Moon phase: 1.36%

Bortle Dark-Sky Scale: 4.00


Basic astrometry details

Astrometry.net job: 4218529

RA center: 7h 18' 40"

DEC center: -13° 11' 45"

Pixel scale: 0.860 arcsec/pixel

Orientation: 21.362 degrees

Field radius: 0.358 degrees


Resolution: 2400x1800

Locations: Gold Canyon, Gold Canyon, AZ, United States

Data source: Traveller

Description

Gold Canyon and Arizona City, Arizona
January 2-30, 2021

NGC 2359 is an emission nebula in the constellation Canis Major. It was captured with narrowband filters, Hydrogen-alpha (Ha) and Oxygen-III (OIII). Weather permitting, I took 10-minute exposures for each subframe and collected many hours of data over the month of January. This false color image assigns Ha to Red and OIII to the Green and Blue channels.

Thor’s Helmet is an interstellar bubble blown out as a fast wind from the central star as it pushes out through the surrounding molecular cloud at very high velocities. The central Wolf-Rayet star is an extremely massive giant which is in a pre-supernova stage of development. The ionized gas clouds are rich in hydrogen and oxygen which give the red and blue-green colors. NGC 2359 is 15,000 light-years away and it is 30 light years across (SkySafari Pro).

Comments