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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
SunriseRise: 6:38  
clear_day Transit: 12:10  
SunsetSet: 17:43
sleep NighttimeWhat's Visible Now?
All Constellations » Cetus » 


Altitude: -3.8°   Azimuth: 282.1°   Direction: West-North-West

HR877 is a variable giant star in the constellation of Cetus.

HR877 visual magnitude is 6.11. Because of its reltive faintness, HR877 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR877 is 0.017 arcsec per year in Right Ascension and 0.023 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR877 star
DSS2 image of HR877. The red arrow shows the motion of HR877 during the next 10000 years (2.83 arcmin in Right Ascension and 3.83 arcmin in declination);

Key facts about HR877


HR877 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -3.8°
Azimuth: 282.1°
Direction: West-North-West

Celestial coordinates and finder chart of HR877

HR877 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 HR877 are provided in the following table:

02h 57m 04s
+04° 30’ 03”

The simplified sky map below shows the position of HR877 in the sky:

Finder chart HR877 star
Simplified finder chart for HR877.

Visibility of HR877 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 HR877 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: 85.5°
Max altitude: 43.0°
Azimuth: 274.5°

Distance of HR877 from the Sun and relative movement

HR877 is distant 556.31 light years from the Sun and it is moving far from the Sun at the speed of 52 kilometers per second.

170.65 pc
556.31 ly
52 km/s
0.017 arcsec/year
0.023 arcsec/year

Spectral properties of HR877

HR877 belongs to spectral class M4 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR877 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR877. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR877