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🌎  Greenwich, United Kingdom [change]

IC 918 - Spiral Galaxy in Ursa Major

IC 918 is a Spiral Galaxy in the Ursa Major constellation. IC 918 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere.

IC 918
Galaxy
Ursa Major
  • IC 918 is above the horizon from Greenwich, United Kingdom [change]. Its current altitude is 56° above the horizon. See also rise and set times.
  • Given its B magnitude of 17.97, IC 918 is visible only through long exposure photography.
Available Resources for IC 918 - Spiral Galaxy in Ursa Major

Photometric information of IC 918

The following table lists the magnitude of IC 918 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).

17.97

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 918.

23.8 mag/arcsec2

Apparent size of IC 918

The following table reports IC 918 apparent angular size. The green area displayed on top of the DSS2 image of IC 918 is a visual representation of it.
0.63 arcmin
0.23 arcmin
102°

Digitized Sky Survey image of IC 918

The image below is a photograph of IC 918 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 918 - Spiral Galaxy in Ursa Major star
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DSS2 image of IC 918 in the Red band. The green region on the image is a representation of the major (0.63 arcmin) and minor (0.23 arcmin) axes of the object's apparent size.

IC 918 - Spiral Galaxy in Ursa Major morphological classification

IC 918 - Spiral Galaxy in Ursa Major is classified as Spiral (SAb) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of IC 918 - Spiral Galaxy in Ursa Major in the Hubble de Vaucouleurs sequence.

IC 918 - Spiral Galaxy in Ursa Major
Visualization of the morphological classification of IC 918 - Spiral Galaxy in Ursa Major, Spiral (SAb).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Celestial coordinates and finder chart of IC 918

Celestial coordinates for the J2000 equinox of IC 918 are provided in the following table:

13h 42m 38s
+55° 31’ 46”

The simplified sky charts below show the position of IC 918 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 918 - Spiral Galaxy in Ursa Major star
Simplified finder chart for IC 918 - Spiral Galaxy in Ursa Major.

Finder chart IC 918 - Spiral Galaxy in Ursa Major star
Simplified finder chart for IC 918 - Spiral Galaxy in Ursa Major.

Rise ans set times of IC 918 from your location

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

IC 918 - Spiral Galaxy in Ursa Major is circumpolar and transits at 17:12 UTC (altitude: 86.0°)