We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Your support helps us pay the server bills » Donate
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 7:03  
clear_day Transit: 12:12  
SunsetSet: 17:22
sleep NighttimeWhat's Visible Now?
All Constellations »  Sextans »  Deep Sky Objects » 

IC 645 - Galaxy in Sextans

Altitude: 14.3°   Azimuth: 240.4°   Direction: West-South-West

IC 645 is a Galaxy in the Sextans constellation. IC 645 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.

The image below is a photograph of IC 645 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 645 - Galaxy in Sextans star
DSS2 image of IC 645 in the Red band. The green region on the image is a representation of the major (0.48 arcmin) and minor (0.42 arcmin) axes of the object's apparent size.

Key facts about IC 645

IC 645

IC 645 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 14.3°
Azimuth: 240.4°
Direction: West-South-West

See also IC 645 rise and set times.

Given its B magnitude of 15.43, IC 645 is visible with the help of a telescope having an aperture of 20 inches (500mm) or more.

Available Resources for IC 645 - Galaxy in Sextans

Photometric information of IC 645

The following table lists the magnitude of IC 645 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 645

The following table reports IC 645 apparent angular size. The green area displayed on top of the DSS2 image of IC 645 is a visual representation of it.
0.48 arcmin
0.42 arcmin

Celestial coordinates and finder chart of IC 645

Celestial coordinates for the J2000 equinox of IC 645 are provided in the following table:

10h 50m 08s
-06° 02’ 34”

The simplified sky charts below show the position of IC 645 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 645 - Galaxy in Sextans star
Simplified finder chart for IC 645 - Galaxy in Sextans.

Finder chart IC 645 - Galaxy in Sextans star
Simplified finder chart for IC 645 - Galaxy in Sextans.

Rise and set times of IC 645 from your location

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

Today's IC 645 - Galaxy in Sextans rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 96.0°
Max altitude: 32.5°
Azimuth: 264.0°