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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:43  
clear_day Transit: 11:47  
SunsetSet: 15:52 south
sunny DaytimeWhat's Visible Now?
All Constellations » Eridanus » 


Altitude: -23.1°   Azimuth: 81.3°   Direction: East

HR857 is a variable main-sequence star in the constellation of Eridanus.

HR857 visual magnitude is 6.04. Because of its reltive faintness, HR857 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR857:


HR857 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -23.1°
Azimuth: 81.3°
Direction: East

Celestial coordinates and finder chart of HR857

HR857 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR857 are provided in the following table:

02h 52m 32s
-12° 46’ 09”

The simplified sky map below shows the position of HR857 in the sky:

Finder chart HR857 star
Simplified finder chart for HR857.

Visibility of HR857 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 HR857 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: 102.8°
Max altitude: 25.8°
Azimuth: 257.2°

Digitized Sky Survey image of HR857

The image below is a photograph of HR857 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). The proper motion of HR857 is 0.394 arcsec per year in Right Ascension and -0.175 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR857 star
DSS2 image of HR857. The red arrow shows the motion of HR857 during the next 1000 years (6.57 arcmin in Right Ascension and -2.92 arcmin in declination);

Distance of HR857 from the Sun and relative movement

HR857 is distant 33.84 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.

10.38 pc
33.84 ly
19 km/s
0.394 arcsec/year
-0.175 arcsec/year

Spectral properties of HR857

HR857 belongs to spectral class K2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR857 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR857. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR857