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: 6:43  
clear_day Transit: 12:51  
SunsetSet: 18:59 south
sunny DaytimeWhat's Visible Now
All Constellations » Cygnus » 


Altitude: 31.7°   Azimuth: 59.7°   Direction: East-North-East

HR8144 is a main-sequence star in the constellation of Cygnus.

HR8144 visual magnitude is 6.19. Because of its reltive faintness, HR8144 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 HR8144:


HR8144 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 31.7°
Azimuth: 59.7°
Direction: East-North-East

Celestial coordinates and finder chart of HR8144

HR8144 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 HR8144 are provided in the following table:

21h 17m 23s
+42° 40’ 59”

The simplified sky map below shows the position of HR8144 in the sky:

Finder chart HR8144 star
Simplified finder chart for HR8144.

Visibility of HR8144 from your location

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

HR8144 is circumpolar and transits at 21:15 UTC (altitude: 81.2°)

Digitized Sky Survey image of HR8144

The image below is a photograph of HR8144 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 HR8144 is 0.015 arcsec per year in Right Ascension and -0.008 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR8144 star
DSS2 image of HR8144. The red arrow shows the motion of HR8144 during the next 10000 years (2.50 arcmin in Right Ascension and -1.33 arcmin in declination);

Distance of HR8144 from the Sun and relative movement

HR8144 is distant 1,151.94 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.

353.36 pc
1,151.94 ly
-20 km/s
0.015 arcsec/year
-0.008 arcsec/year

Spectral properties of HR8144

HR8144 belongs to spectral class B7 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR8144 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8144. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8144