IC 443 (Gem A) - Supernova Remnant
IC 443 is a Supernova Remnant in the Gemini constellation. IC 443 is situated close to the celestial equator and, as such, it is at least partly visible from both hemispheres in certain times of the year.
Photometric information of IC 443
The following table lists the magnitude of IC 443 in different bands of the electomagnetic spectrum (when available), from the B band (445nm wavelength, corresponding to the Blue color), to the V band ( 551nm wavelength, corresponding to Green/Yellow color), to the J, H, K bands (corresponding to 1220nm, 1630nm, 2190nm wavelengths respectively, which are colors not visible to the human eye).
For more information about photometry in astronomy, check the photometric system article on Wikipedia.
Apparent size of IC 443The following table reports IC 443 apparent angular size. The green area displayed on top of the DSS2 image of IC 443 is a visual representation of it.
Digitized Sky Survey image of IC 443
The image below is a photograph of IC 443 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 1.6666666666667x1.6666666666667 degrees (100x100 arcmins).
Celestial coordinates and finder chart of IC 443
Celestial coordinates for the J2000 equinox of IC 443 are provided in the following table:
The simplified sky charts below show the position of IC 443 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.