Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:36  ☀️ Transit: 13:02  🌅 Sunset: 19:29


HR8161 is a main-sequence star in the constellation of Cygnus.

HR8161 visual magnitude is 5.76. Because of its reltive faintness, HR8161 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 HR8161:

HR8161 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 87°.

Celestial coordinates and finder chart of HR8161

HR8161 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 HR8161 are provided in the following table:

21h 19m 28s
+49° 30’ 37”

The simplified sky map below shows the position of HR8161 in the sky:

Finder chart HR8161 star
Simplified finder chart for HR8161.

Visibility of HR8161 from your location

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

HR8161 is circumpolar and transits at 08:41 UTC (altitude: 88.0°)

Digitized Sky Survey image of HR8161

The image below is a photograph of HR8161 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 HR8161 is 0.017 arcsec per year in Right Ascension and 0.002 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR8161 star
DSS2 image of HR8161. The red arrow shows the motion of HR8161 during the next 10000 years (2.83 arcmin in Right Ascension and 0.33 arcmin in declination);

Distance of HR8161 from the Sun and relative movement

HR8161 is distant 536.18 light years from the Sun and it is moving towards the Sun at the speed of 23 kilometers per second.

164.47 pc
536.18 ly
-23 km/s
0.017 arcsec/year
0.002 arcsec/year

Spectral properties of HR8161

HR8161 belongs to spectral class B6 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR8161 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8161. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8161