IC 4291 - Open Cluster in Centaurus
IC 4291 is a Open Cluster in the Centaurus constellation. IC 4291 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere.
See also IC 4291 rise and set times.
Given its visual magnitude of 9.7, IC 4291 is visible with the help of a binocular with a 80mm aperture or a small telescope.
Photometric information of IC 4291
The following table lists the magnitude of IC 4291 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 4291The following table reports IC 4291 apparent angular size. The green area displayed on top of the DSS2 image of IC 4291 is a visual representation of it.
Digitized Sky Survey image of IC 4291
The image below is a photograph of IC 4291 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 0.5x0.5 degrees (30x30 arcmins).
Celestial coordinates and finder chart of IC 4291
Celestial coordinates for the J2000 equinox of IC 4291 are provided in the following table:
The simplified sky charts below show the position of IC 4291 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.