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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: 6:35  
clear_day Transit: 12:10  
SunsetSet: 17:45
sunny DaytimeWhat's Visible Now?
All Constellations » Microscopium » 


Altitude: 2.4°   Azimuth: 178.8°   Direction: South

HR8031 is a main-sequence star in the constellation of Microscopium.

HR8031 visual magnitude is 6.11. Because of its reltive faintness, HR8031 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 HR8031 is 0.106 arcsec per year in Right Ascension and -0.061 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR8031 star
DSS2 image of HR8031. The red arrow shows the motion of HR8031 during the next 1000 years (1.77 arcmin in Right Ascension and -1.02 arcmin in declination);

Key facts about HR8031


HR8031 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 2.4°
Azimuth: 178.8°
Direction: South

Celestial coordinates and finder chart of HR8031

HR8031 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR8031 are provided in the following table:

20h 59m 59s
-36° 07’ 46”

The simplified sky map below shows the position of HR8031 in the sky:

Finder chart HR8031 star
Simplified finder chart for HR8031.

Visibility of HR8031 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 HR8031 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: 126.1°
Max altitude: 2.4°
Azimuth: 233.9°

Distance of HR8031 from the Sun and relative movement

HR8031 is distant 135.21 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

41.48 pc
135.21 ly
16 km/s
0.106 arcsec/year
-0.061 arcsec/year

Spectral properties of HR8031

HR8031 belongs to spectral class F5 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR8031 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8031. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8031