Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:52  
clear_day Transit: 12:49  
SunsetSet: 18:46 south
sunny DaytimeWhat's Visible Now
All Constellations » Microscopium » 


Altitude: -18.1°   Azimuth: 112.0°   Direction: East-South-East

HR8050 is a double hypergiant star in the constellation of Microscopium.

HR8050 visual magnitude is 6.25. Because of its reltive faintness, HR8050 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 HR8050:


HR8050 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -18.1°
Azimuth: 112.0°
Direction: East-South-East

Celestial coordinates and finder chart of HR8050

HR8050 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 HR8050 are provided in the following table:

21h 03m 10s
-27° 43’ 54”

The simplified sky map below shows the position of HR8050 in the sky:

Finder chart HR8050 star
Simplified finder chart for HR8050.

Visibility of HR8050 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 HR8050 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: 117.7°
Max altitude: 10.8°
Azimuth: 242.3°

Digitized Sky Survey image of HR8050

The image below is a photograph of HR8050 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 HR8050 is 0.035 arcsec per year in Right Ascension and -0.044 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR8050 star
DSS2 image of HR8050. The red arrow shows the motion of HR8050 during the next 10000 years (5.83 arcmin in Right Ascension and -7.33 arcmin in declination);

Distance of HR8050 from the Sun and relative movement

HR8050 is distant 1,263.57 light years from the Sun and it is moving towards the Sun at the speed of 30 kilometers per second.

387.60 pc
1,263.57 ly
-30 km/s
0.035 arcsec/year
-0.044 arcsec/year

Spectral properties of HR8050

HR8050 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.


The red dot in the diagram below shows where HR8050 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR8050. Attribution: Richard Powell / CC BY-SA

HR8050 star system properties

HR8050 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR8050 double sysyem:

0.1 arcsec

Alternative designations of HR8050