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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: 6:42  
clear_day Transit: 12:10  
SunsetSet: 17:40
sunny DaytimeWhat's Visible Now?
All Constellations » Lacerta » 

HR8712

Altitude: 68.5°   Azimuth: 110.6°   Direction: East-South-East

HR8712 is a hypergiant star in the constellation of Lacerta.

HR8712 visual magnitude is 5.81. Because of its reltive faintness, HR8712 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 HR8712 is 0.103 arcsec per year in Right Ascension and 0.036 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR8712 star
DSS2 image of HR8712. The red arrow shows the motion of HR8712 during the next 1000 years (1.72 arcmin in Right Ascension and 0.60 arcmin in declination);

Key facts about HR8712

5.81
Hypergiant

HR8712 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 68.5°
Azimuth: 110.6°
Direction: East-South-East

Celestial coordinates and finder chart of HR8712

HR8712 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 HR8712 are provided in the following table:

22h 54m 06s
+40° 22’ 36”
99.94°
-17.2°
Lacerta

The simplified sky map below shows the position of HR8712 in the sky:

Finder chart HR8712 star
Simplified finder chart for HR8712.

Visibility of HR8712 from your location

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

HR8712 is circumpolar and transits at 12:11 UTC (altitude: 78.9°)

Distance of HR8712 from the Sun and relative movement

HR8712 is distant 338.53 light years from the Sun and it is moving towards the Sun at the speed of 6 kilometers per second.

103.84 pc
338.53 ly
-6 km/s
0.103 arcsec/year
0.036 arcsec/year

Spectral properties of HR8712

HR8712 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

0.73
K0III
4451K

The red dot in the diagram below shows where HR8712 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR8712. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8712

SAO52471
SAO52471