Your Guide to the Solar System and the Night Sky
This site is free and ad-free thanks to the support of our users. If you can, please consider a donation.
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:54  
clear_day Transit: 12:49  
SunsetSet: 18:43 south
sunny DaytimeWhat's Visible Now
All Constellations » Cygnus » 


Altitude: 16.7°   Azimuth: 348.4°   Direction: North-North-West

HR8147 is a main-sequence star in the constellation of Cygnus.

HR8147 visual magnitude is 6.13. Because of its reltive faintness, HR8147 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 HR8147:


HR8147 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 16.7°
Azimuth: 348.4°
Direction: North-North-West

Celestial coordinates and finder chart of HR8147

HR8147 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 HR8147 are provided in the following table:

21h 17m 02s
+53° 59’ 51”

The simplified sky map below shows the position of HR8147 in the sky:

Finder chart HR8147 star
Simplified finder chart for HR8147.

Visibility of HR8147 from your location

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

HR8147 is circumpolar and transits at 20:47 UTC (altitude: 87.5°)

Digitized Sky Survey image of HR8147

The image below is a photograph of HR8147 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 HR8147 is 0.031 arcsec per year in Right Ascension and 0.033 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR8147 star
DSS2 image of HR8147. The red arrow shows the motion of HR8147 during the next 10000 years (5.17 arcmin in Right Ascension and 5.50 arcmin in declination);

Distance of HR8147 from the Sun and relative movement

HR8147 is distant 401.48 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

123.15 pc
401.48 ly
-8 km/s
0.031 arcsec/year
0.033 arcsec/year

Spectral properties of HR8147

HR8147 belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR8147 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8147. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8147