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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:45  
clear_day Transit: 12:57  
SunsetSet: 21:09 south
sunny  • Daytime • What's Visible Now

In Evidence

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Other deep sky objects in Coma Berenices
All Constellations »  Coma Berenices »  Deep Sky Objects » 

IC 857 - Spiral Galaxy in Coma Berenices

Altitude: 34.4°   Azimuth: 106.8°   Direction: East-South-East

IC 857 is a Spiral Galaxy in the Coma Berenices constellation. IC 857 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 857
Galaxy
Coma Berenices

IC 857 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 34.4°
Azimuth: 106.8°
Direction: East-South-East

See also IC 857 rise and set times.

Given its B magnitude of 14.7, IC 857 is visible with the help of a telescope having an aperture of 20 inches (500mm) or more.

Available Resources for IC 857 - Spiral Galaxy in Coma Berenices

Photometric information of IC 857

The following table lists the magnitude of IC 857 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).

14.7
11.91
11.23
10.75

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 857.

23.03 mag/arcsec2

Apparent size of IC 857

The following table reports IC 857 apparent angular size. The green area displayed on top of the DSS2 image of IC 857 is a visual representation of it.
0.99 arcmin
0.74 arcmin
100°

Digitized Sky Survey image of IC 857

The image below is a photograph of IC 857 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 857 - Spiral Galaxy in Coma Berenices star
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DSS2 image of IC 857 in the Red band. The green region on the image is a representation of the major (0.99 arcmin) and minor (0.74 arcmin) axes of the object's apparent size.

IC 857 - Spiral Galaxy in Coma Berenices morphological classification

IC 857 - Spiral Galaxy in Coma Berenices 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 857 - Spiral Galaxy in Coma Berenices in the Hubble de Vaucouleurs sequence.

IC 857 - Spiral Galaxy in Coma Berenices
Visualization of the morphological classification of IC 857 - Spiral Galaxy in Coma Berenices, Spiral (SAb).
Credits for the background image: Antonio Ciccolella / M. De Leo / CC BY

Celestial coordinates and finder chart of IC 857

Celestial coordinates for the J2000 equinox of IC 857 are provided in the following table:

13h 13m 50s
+17° 04’ 34”

The simplified sky charts below show the position of IC 857 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 857 - Spiral Galaxy in Coma Berenices star
Simplified finder chart for IC 857 - Spiral Galaxy in Coma Berenices.

Finder chart IC 857 - Spiral Galaxy in Coma Berenices star
Simplified finder chart for IC 857 - Spiral Galaxy in Coma Berenices.

Rise ans set times of IC 857 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 857 - Spiral Galaxy in Coma Berenices 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: 72.9°
Max altitude: 55.6°
Azimuth: 287.1°
IC 857 - Spiral Galaxy in Coma Berenices is below the horizon from Greenwich, United Kingdom