IC 443 - Jellyfish Nebula
Above image awarded APOD by Astronomia.com on 16Jan23
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.
IC 444 is in the upper section of the image. It is a small, 32 square arcminute reflection nebula - that holds a little secret.
When data is processed in Hubble Pallet an interesting blue cloud pops up and stimulates the imagination - see upper left quadrant. A possible planetary nebula? I have yet to find out for sure. (First noted by Howell & Crisp in 2006).
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: ASI 2600MM
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor & PixInsight,
Filters: Astrodon Ha (3nm), Astrodon OIII (3nm), Astrodon SII (3nm),
Accessories: ATIK EFW3, SeleTEK2 controlling Robofocus Focuser.
Original Image : 6130 x 4080
This Image (Max) : 3600 x 2400
Dates: 9th - 13th Jan 2023
Frames:
Astrodon Ha 72 x 5'
Astrodon OIII 72 x 5'
Astrodon SII 72 x 5'
Total integration = 18 Hours.
Center (RA, Dec):(94.834, 22.812)
Center (RA, hms):06h 19m 20.176s
Center (Dec, dms):+22° 48' 43.135"
Size:2.03 x 1.35 deg
Radius:1.222 deg
Pixel scale:1.2 arcsec/pixel
Orientation:Up is 20.3 degrees E of N
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.
IC 444 is in the upper section of the image. It is a small, 32 square arcminute reflection nebula - that holds a little secret.
When data is processed in Hubble Pallet an interesting blue cloud pops up and stimulates the imagination - see upper left quadrant. A possible planetary nebula? I have yet to find out for sure. (First noted by Howell & Crisp in 2006).
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: ASI 2600MM
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor & PixInsight,
Filters: Astrodon Ha (3nm), Astrodon OIII (3nm), Astrodon SII (3nm),
Accessories: ATIK EFW3, SeleTEK2 controlling Robofocus Focuser.
Original Image : 6130 x 4080
This Image (Max) : 3600 x 2400
Dates: 9th - 13th Jan 2023
Frames:
Astrodon Ha 72 x 5'
Astrodon OIII 72 x 5'
Astrodon SII 72 x 5'
Total integration = 18 Hours.
Center (RA, Dec):(94.834, 22.812)
Center (RA, hms):06h 19m 20.176s
Center (Dec, dms):+22° 48' 43.135"
Size:2.03 x 1.35 deg
Radius:1.222 deg
Pixel scale:1.2 arcsec/pixel
Orientation:Up is 20.3 degrees E of N
SII, Ha & OIII in the image:
Sky Map & Finder Chart
Annotated Image
