The Jellyfish Nebula
The Jellyfish Nebula (IC443) is a galactic supernova remnant in the constellation Gemini. These gas structures are from the explosion of a star that went supernova. They are shaped by their shockwave, collecting dust and gases as it expands outward. The Jellyfish Nebula is one of the best-studied examples of supernova remnants interacting with its surrounding molecular clouds.
Specifications:
Designation: IC443
Known As: The Jellyfish Nebula
Apparent Size: 50′ x 40′
Magnitude (lower is brighter): 12.0
Distance from Earth: 5,000 LY
Four Hours of Imaging Using a Duo-Band Filter
The image above was taken in a Bortle 6 sky using the ZWO Duo-Band Filter. This only allows Ha and OIII light through to the sensor, giving rich red and teal colors. However, the Jellyfish Nebula does not have much OIII.
EQUIPMENT
Telescope: Apertura 60EDR
Mount: Skywatcher EQ6R-Pro
Camera: ZWO ASI533MC Pro
Guiding: ZWO ASI120MM Mini
Brain: ZWO ASIair Pro
Filters: ZWO Duo-Band Filter
ACQUISITION
Integration Time: 4 hours
RGB: 48 x 300sec
BIN: 1×1
Gain: 110
Temperature: -10° C
Bortle Scale: 6
CALIBRATION
Darks: 10
Flats: 30
Dark Flats: 30
Offset/Bias: 30
The Gemini Constellation
Gemini (The Twins) is one of the constellations of the zodiac and is located in the northern celestial hemisphere. Its name is Latin for twins, and it is associated with the twins Castor and Pollux in Greek mythology
The Jellyfish Nebula is located in the foot of Caster. Other deep sky objects located in the Gemini constellation include: M35, NGC2392, and the Medusa Nebula.
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*General information regarding constellations, galaxies, nebulae, and planets have been sourced from: AstroBackyard, VisibleDark, Wikipedia, EarthSky, and NASA.