Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:34  ☀️ Transit: 13:02  🌅 Sunset: 19:31


HR8102 is a variable hypergiant star in the constellation of Aquarius.

HR8102 visual magnitude is 6.48. Because of its reltive faintness, HR8102 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 HR8102:

HR8102 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 10°.

Celestial coordinates and finder chart of HR8102

HR8102 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 HR8102 are provided in the following table:

21h 11m 41s
-14° 28’ 19”

The simplified sky map below shows the position of HR8102 in the sky:

Finder chart HR8102 star
Simplified finder chart for HR8102.

Visibility of HR8102 from your location

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

Today's HR8102 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 104.5°
Max altitude: 24.0°
Azimuth: 255.5°
HR8102 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR8102

The image below is a photograph of HR8102 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 HR8102 is 0.039 arcsec per year in Right Ascension and 0.004 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR8102 star
DSS2 image of HR8102. The red arrow shows the motion of HR8102 during the next 10000 years (6.50 arcmin in Right Ascension and 0.67 arcmin in declination);

Distance of HR8102 from the Sun and relative movement

HR8102 is distant 438.76 light years from the Sun and it is moving towards the Sun at the speed of 39 kilometers per second.

134.59 pc
438.76 ly
-39 km/s
0.039 arcsec/year
0.004 arcsec/year

Spectral properties of HR8102

HR8102 belongs to spectral class F0


The red dot in the diagram below shows where HR8102 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8102. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8102