IC 1917 - Lenticular Galaxy in Horologium
IC 1917 is a Lenticular Galaxy in the Horologium constellation. IC 1917 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere.
The image below is a photograph of IC 1917 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).
Key facts about IC 1917
IC 1917 is below the horizon from Greenwich, United Kingdom .
Altitude: -48.5°
Azimuth: 238.7°
Direction: West-South-West
See also IC 1917 rise and set times.
Given its B magnitude of 15.99, IC 1917 is visible only through long exposure photography.
Photometric information of IC 1917
The following table lists the magnitude of IC 1917 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 1917.
Apparent size of IC 1917
The following table reports IC 1917 apparent angular size. The green area displayed on top of the DSS2 image of IC 1917 is a visual representation of it.IC 1917 - Lenticular Galaxy in Horologium morphological classification
IC 1917 - Lenticular Galaxy in Horologium is classified as Lenticular (S0-Aa) according to the Hubble and de Vaucouleurs galaxy morphological classification. The diagram below shows a visual representation of the position of IC 1917 - Lenticular Galaxy in Horologium in the Hubble de Vaucouleurs sequence.
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY
Celestial coordinates and finder chart of IC 1917
Celestial coordinates for the J2000 equinox of IC 1917 are provided in the following table:
The simplified sky charts below show the position of IC 1917 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.
Rise and set times of IC 1917 from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London
IC 1917 - Lenticular Galaxy in Horologium is currently not visible from Greenwich, United Kingdom