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 keeps us free & ad-free » Donate
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:40  
clear_day Transit: 12:10  
SunsetSet: 17:41
wb_twilight Astronomical TwilightWhat's Visible Now?
All Constellations » Lyra » 


Altitude: -10.7°   Azimuth: 343.7°   Direction: North-North-West

HR7181 is a giant star in the constellation of Lyra.

HR7181 visual magnitude is 5.27. Because of its reltive faintness, HR7181 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 HR7181 is 0.088 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 HR7181 star
DSS2 image of HR7181. The red arrow shows the motion of HR7181 during the next 10000 years (14.67 arcmin in Right Ascension and -1.33 arcmin in declination);

Key facts about HR7181


HR7181 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -10.7°
Azimuth: 343.7°
Direction: North-North-West

Celestial coordinates and finder chart of HR7181

HR7181 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 HR7181 are provided in the following table:

18h 59m 45s
+26° 13’ 50”

The simplified sky map below shows the position of HR7181 in the sky:

Finder chart HR7181 star
Simplified finder chart for HR7181.

Visibility of HR7181 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 HR7181 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: 63.8°
Max altitude: 64.8°
Azimuth: 296.2°

Distance of HR7181 from the Sun and relative movement

HR7181 is distant 348.29 light years from the Sun and it is moving towards the Sun at the speed of 24 kilometers per second.

106.84 pc
348.29 ly
-24 km/s
0.088 arcsec/year
-0.008 arcsec/year

Spectral properties of HR7181

HR7181 belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR7181 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR7181. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7181