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🌎 Location: Greenwich, United Kingdom [change]

IC 721 - Galaxy

IC 721 is a Galaxy in the Crater constellation. IC 721 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.

IC 721
  • IC 721 is above the horizon from Greenwich, United Kingdom [change]. Its current altitude is 12° above the horizon. See also rise and set times.
  • Given its B magnitude of 15.5, IC 721 is visible only through long exposure photography.
Available Resources for IC 721 - Galaxy

Photometric information of IC 721

The following table lists the magnitude of IC 721 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.

The surface brightess reported below is an indication of the brightness per unit of angular area of IC 721.

23.57 mag/arcsec2

Apparent size of IC 721

The following table reports IC 721 apparent angular size. The green area displayed on top of the DSS2 image of IC 721 is a visual representation of it.
1.63 arcmin
0.29 arcmin

Digitized Sky Survey image of IC 721

The image below is a photograph of IC 721 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).

Image of IC 721 -  Galaxy star
DSS2 image of IC 721 in the Red band. The green region on the image is a representation of the major (1.63 arcmin) and minor (0.29 arcmin) axes of the object's apparent size.

IC 721 - Galaxy morphological classification

IC 721 - Galaxy is classified as according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of IC 721 - Galaxy in the Hubble de Vaucouleurs sequence.

IC 721 - Galaxy
Visualization of the morphological classification of IC 721 - Galaxy, .
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Celestial coordinates and finder chart of IC 721

Celestial coordinates for the J2000 equinox of IC 721 are provided in the following table:

11h 42m 29s
-08° 20’ 25”

The simplified sky charts below show the position of IC 721 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.

Finder chart IC 721 -  Galaxy star
Simplified finder chart for IC 721 - Galaxy.

Finder chart IC 721 -  Galaxy star
Simplified finder chart for IC 721 - Galaxy.

Rise ans set times of IC 721 from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's IC 721 - Galaxy rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 98.3°
Max altitude: 30.2°
Azimuth: 261.7°
IC 721 - Galaxy is below the horizon from Greenwich, United Kingdom