IC 443 Jellyfish nebula

[cml_media_alt id='1311']IC 443 Jellyfish[/cml_media_alt]

ExplanationNormally faint and elusive, the Jellyfish Nebula is caught in this alluring telescopic view. Drifting near bright star Eta Geminorum, at the foot of a celestial twin, the Jellyfish Nebula is seen dangling tentacles from the bright arcing ridge of emission left of center. In fact, the cosmic jellyfish is part of bubble-shaped supernova remnant IC 443, the expanding debris cloud from a massive star that exploded. Light from the explosion first reached planet Earth over 30,000 years ago. Like its cousin in astrophysical waters the Crab Nebula supernova remnant, IC 443 is known to harbor a neutron star, the remnant of the collapsed stellar core. The Jellyfish Nebula is about 5,000 light-years away. At that distance, this image would be about 100 light-years across. . Credit: APOD, NASA.

Optics:Celestron 11 HD f: 2 (Hyperstar )
Mount:Avalon M1 Fast Reverse
Camera:SX H694 unbinning (-15°)
Filters: Baader SII, OIII, Halpha
Guiding Systems:
Dates/Times: July 2014
Location: W.Herschel obs.Viterbo.
Exposure Details: lum halpha 7.8 hours, Sulfur 154 min, Oxigen 132 min
Cooling Details: – 15 °
Acquisition: Astroart, PHD Guiding, Chartes Du Ciel, Avalon Star Go
Processing: Astroart,PS
Mean FWHM: 3,8
SQM-L: 21.1






OTA: Celestron C11 HD Edge f:1,9
Oxigen : 132min ; Hydrogen : 7,8 hours ; Sulfur : 154 min

CCD : Starlight Xpress H694 (cooled – 5° C. unb)

Mount: Avalon M-Uno Fast Reverse

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