Contains:The star 24Cep, The star 16Cep
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LDN1235 The Shark Nebula, 




    

        Barry Wilson
LDN1235 The Shark Nebula

LDN1235 The Shark Nebula

Technical card

Resolution: 4364x3053

Dates: July 10, 2018

Frames:
Astrodon E-Series Blue filter: 32x600" bin 1x1
Astrodon E-Series Green filter: 32x600" bin 1x1
Astrodon E-Series Red filter: 32x600" bin 1x1
Astrodon Luminance E-Series: 72x600" bin 1x1

Integration: 28.0 hours

Avg. Moon age: 26.50 days

Avg. Moon phase: 10.05%

Astrometry.net job: 2145311

RA center: 331.271 degrees

DEC center: 73.011 degrees

Pixel scale: 2.094 arcsec/pixel

Orientation: 0.081 degrees

Field radius: 1.549 degrees

Locations: Entre Encinas y Estrellas E-EyE, Fregenal de la Sierra, Extremadura, Spain

Data source: Own remote observatory

Description

This is a two panel mosaic captured by Barry Wilson & Steve Milne; processed by Barry Wilson.

Eerily evocative of its namesake, the Shark Nebula in Cepheus, is described by APOD: "There is no sea on Earth large enough to contain the Shark nebula. This predator apparition poses us no danger, though, as it is composed only of interstellar gas and dust. Dark dust like that featured here is somewhat like cigarette smoke and created in the cool atmospheres of giant stars. After being expelled with gas and gravitationally recondensing, massive stars may carve intricate structures into their birth cloud using their high energy light and fast stellar winds as sculpting tools. The heat they generate evaporates the murky molecular cloud as well as causing ambient hydrogen gas to disperse and glow red. During disintegration, we humans can enjoy imagining these great clouds as common icons, like we do for water clouds on Earth. Including smaller dust nebulae such as Lynds Dark Nebula 1235 and Van den Bergh 149 & 150, the Shark nebula spans about 15 light years and lies about 650 light years away toward the constellation of the King of Aethiopia (Cepheus)".

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LDN1235 The Shark Nebula, 




    

        Barry Wilson