We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Your support helps us pay the server bills » Donate
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:38  
clear_day Transit: 12:10  
SunsetSet: 17:43
wb_twilight Nautical TwilightWhat's Visible Now?
All Constellations » Cygnus » 


Altitude: 26.3°   Azimuth: 316.4°   Direction: North-West

HR8377 is a main-sequence star in the constellation of Cygnus.

HR8377 visual magnitude is 6.42. Because of its reltive faintness, HR8377 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 HR8377 is 0.005 arcsec per year in Right Ascension and 0.002 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR8377 star
DSS2 image of HR8377. The red arrow shows the motion of HR8377 during the next 100000 years (8.33 arcmin in Right Ascension and 3.33 arcmin in declination);

Key facts about HR8377


HR8377 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 26.3°
Azimuth: 316.4°
Direction: North-West

Celestial coordinates and finder chart of HR8377

HR8377 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 HR8377 are provided in the following table:

21h 57m 02s
+48° 40’ 06”

The simplified sky map below shows the position of HR8377 in the sky:

Finder chart HR8377 star
Simplified finder chart for HR8377.

Visibility of HR8377 from your location

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

HR8377 is circumpolar and transits at 11:06 UTC (altitude: 87.2°)

Distance of HR8377 from the Sun and relative movement

HR8377 is distant 984.89 light years from the Sun and it is moving towards the Sun at the speed of 16 kilometers per second.

302.11 pc
984.89 ly
-16 km/s
0.005 arcsec/year
0.002 arcsec/year

Spectral properties of HR8377

HR8377 belongs to spectral class B8 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR8377 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8377. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8377