The Jellyfish Nebula in HOO
IC 443
IC 443 (also known as the Jellyfish Nebula and Sharpless 248 (Sh2-248) is a galactic supernova remnant (SNR) in the constellation Gemini. On the plane of the sky, it is located near the star Eta Geminorum. Its distance is roughly 5,000 light years from Earth.
IC 443 may be the remains of a supernova that occurred 3,000 - 30,000 years ago. The same supernova event likely created the neutron star CXOU J061705.3+222127, the collapsed remnant of the stellar core. IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds.
This is an alternate bicolor version using the H-Alpha and Oxygen III signal. RGB data was only used for processing the stars.
IC 443 may be the remains of a supernova that occurred 3,000 - 30,000 years ago. The same supernova event likely created the neutron star CXOU J061705.3+222127, the collapsed remnant of the stellar core. IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds.
This is an alternate bicolor version using the H-Alpha and Oxygen III signal. RGB data was only used for processing the stars.
Awarded Amateur Astronomy Photo of the Day on AAPOD2.com
Image Details
| Date |
February 26 & 27, 2022 |
| LOCATion |
Hannover (Germany) |
| Sky Quality |
Bortle 5 |
| Telescope |
Celestron RASA 8 (203/400 f/2) |
| Mount |
Skywatcher EQ6-R Pro |
| Main Camera |
ZWO ASI 2600 MC Pro Gain 100, Offset 18, -10° |
| Focuser |
Celestron Motorfocus |
| Processing | Astropixelprocessor, Photoshop, Pixinsight |
| Filter |
IDAS NBZ
|
| Exposure |
Ha & OIII: 73 × 240″ (4h 52′) RGB (stars): 53 × 120″ (1h 46′) Total: 6h 38′ |
| Guiding |
ZWO ASI 120MM, PHD2 |
| Calibration |
Flats, Darks, Darkflats |
| Software |
N.I.N.A., EQMod |
| Other |
Artesky Filter Holder |
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M 44
