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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: 7:47  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
sunny DaytimeWhat's Visible Now?
All Constellations » Cepheus » 


Altitude: 42.4°   Azimuth: 8.0°   Direction: North

HR881 is a double giant star in the constellation of Cepheus.

HR881 visual magnitude is 5.49. Because of its reltive faintness, HR881 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 HR881:


HR881 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 42.4°
Azimuth: 8.0°
Direction: North

Celestial coordinates and finder chart of HR881

HR881 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR881 are provided in the following table:

03h 06m 07s
+79° 25’ 06”

The simplified sky map below shows the position of HR881 in the sky:

Finder chart HR881 star
Simplified finder chart for HR881.

Visibility of HR881 from your location

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

HR881 is circumpolar and transits at 22:08 UTC (altitude: 62.1°)

Digitized Sky Survey image of HR881

The image below is a photograph of HR881 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 HR881 is -0.039 arcsec per year in Right Ascension and 0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR881 star
DSS2 image of HR881. The red arrow shows the motion of HR881 during the next 10000 years (-6.50 arcmin in Right Ascension and 1.50 arcmin in declination);

Distance of HR881 from the Sun and relative movement

HR881 is distant 695.10 light years from the Sun and it is moving towards the Sun at the speed of 38 kilometers per second.

213.22 pc
695.10 ly
-38 km/s
-0.039 arcsec/year
0.009 arcsec/year

Spectral properties of HR881

HR881 belongs to spectral class M1 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR881 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR881. Attribution: Richard Powell / CC BY-SA

HR881 star system properties

HR881 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR881 double sysyem:

4.7 arcsec

Alternative designations of HR881