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: 4:44  
clear_day Transit: 12:57  
SunsetSet: 21:11 south
sunny DaytimeWhat's Visible Now
All Constellations » Cygnus » 


Altitude: 9.2°   Azimuth: 318.9°   Direction: North-West

HR8051 is a giant star in the constellation of Cygnus.

HR8051 visual magnitude is 5.97. Because of its reltive faintness, HR8051 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 HR8051:


HR8051 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 9.2°
Azimuth: 318.9°
Direction: North-West

Celestial coordinates and finder chart of HR8051

HR8051 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 HR8051 are provided in the following table:

21h 01m 12s
+36° 01’ 33”

The simplified sky map below shows the position of HR8051 in the sky:

Finder chart HR8051 star
Simplified finder chart for HR8051.

Visibility of HR8051 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 HR8051 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: 54.0°
Max altitude: 74.5°
Azimuth: 306.0°
HR8051 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR8051

The image below is a photograph of HR8051 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 HR8051 is -0.005 arcsec per year in Right Ascension and -0.005 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR8051 star
DSS2 image of HR8051. The red arrow shows the motion of HR8051 during the next 100000 years (-8.33 arcmin in Right Ascension and -8.33 arcmin in declination);

Distance of HR8051 from the Sun and relative movement

HR8051 is distant 657.26 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

201.61 pc
657.26 ly
-10 km/s
-0.005 arcsec/year
-0.005 arcsec/year

Spectral properties of HR8051

HR8051 belongs to spectral class G5 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR8051 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8051. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8051