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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:45 
Transit: 12:59 
Sunset: 21:13
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All Constellations »  Octans »  Deep Sky Objects » 

IC 4912 - Galaxy in Octans

Below the horizon.  Never rises today
Alt: -39.26°   Az: 185.06°   Direction: South

IC 4912 is a Galaxy in the Octans constellation. IC 4912 is situated close to the southern celestial pole and, as such, it is easilty visible for most part of the year from the southern hemisphere. Given its B magnitude of 15.29, IC 4912 is visible with the help of a telescope having an aperture of 20 inches (500mm) or more.

The image below is a photograph of IC 4912 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 0.5000x0.5000 degrees (30.00x30.00 arcmins).

Image of IC 4912 -  Galaxy in Octans star
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DSS2 image of IC 4912 in the Red band. The green region on the image is a representation of the major (1 arcmin) and minor (0.39 arcmin) axes of the object's apparent size.

Celestial Coordinates

Apparent

20h 10m 16s
-77° 16’ 55”
01h 12m 13s
21h 22m 29s

J2000

20h 06m 50s
-77° 21’ 27”

Finder Chart

The simplified sky charts below show the position of IC 4912 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.

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Finder chart for IC 4912 - Galaxy in Octans.

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Finder chart for IC 4912 - Galaxy in Octans.

Photometric Information

The following table lists the magnitude of IC 4912 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).

15.29
13.04
12.75
12.1

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 4912.

23.49 mag/arcsec2

Apparent Size

The following table reports IC 4912 apparent angular size. The green area displayed on top of the DSS2 image of IC 4912 is a visual representation of it.
1 arcmin
0.39 arcmin
41°

Morphological Classification

IC 4912 - Galaxy in Octans 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 4912 - Galaxy in Octans in the Hubble de Vaucouleurs sequence.

IC 4912 - Galaxy in Octans
Visualization of the morphological classification of IC 4912 - Galaxy in Octans, .
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Rise and Set Times

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

IC 4912 - Galaxy in Octans is currently not visible from Greenwich, UK