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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: 7:48  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
sleep NighttimeWhat's Visible Now?
All Constellations » Andromeda » 


Altitude: 50.5°   Azimuth: 285.4°   Direction: West-North-West

HR8870 is a main-sequence star in the constellation of Andromeda.

HR8870 visual magnitude is 6.5. Because of its reltive faintness, HR8870 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 HR8870:


HR8870 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 50.5°
Azimuth: 285.4°
Direction: West-North-West

Celestial coordinates and finder chart of HR8870

HR8870 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR8870 are provided in the following table:

23h 19m 02s
+45° 08’ 13”

The simplified sky map below shows the position of HR8870 in the sky:

Finder chart HR8870 star
Simplified finder chart for HR8870.

Visibility of HR8870 from your location

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

HR8870 is circumpolar and transits at 18:17 UTC (altitude: 83.7°)

Digitized Sky Survey image of HR8870

The image below is a photograph of HR8870 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 HR8870 is 0.058 arcsec per year in Right Ascension and 0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR8870 star
DSS2 image of HR8870. The red arrow shows the motion of HR8870 during the next 10000 years (9.67 arcmin in Right Ascension and 1.00 arcmin in declination);

Distance of HR8870 from the Sun and relative movement

HR8870 is distant 409.55 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

125.63 pc
409.55 ly
7 km/s
0.058 arcsec/year
0.006 arcsec/year

Spectral properties of HR8870

HR8870 belongs to spectral class A5 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR8870 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8870. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8870