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: 6:59  
clear_day Transit: 12:48  
SunsetSet: 18:36 south
sunny DaytimeWhat's Visible Now
All Constellations » Sagittarius » 


Altitude: -42.9°   Azimuth: 70.9°   Direction: East-North-East

HR7159 is a main-sequence star in the constellation of Sagittarius.

HR7159 visual magnitude is 6.14. Because of its reltive faintness, HR7159 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 HR7159:


HR7159 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -42.9°
Azimuth: 70.9°
Direction: East-North-East

Celestial coordinates and finder chart of HR7159

HR7159 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR7159 are provided in the following table:

18h 58m 24s
-22° 31’ 45”

The simplified sky map below shows the position of HR7159 in the sky:

Finder chart HR7159 star
Simplified finder chart for HR7159.

Visibility of HR7159 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 HR7159 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: 112.5°
Max altitude: 16.0°
Azimuth: 247.5°

Digitized Sky Survey image of HR7159

The image below is a photograph of HR7159 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 HR7159 is -0.022 arcsec per year in Right Ascension and 0.017 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7159 star
DSS2 image of HR7159. The red arrow shows the motion of HR7159 during the next 10000 years (-3.67 arcmin in Right Ascension and 2.83 arcmin in declination);

Distance of HR7159 from the Sun and relative movement

HR7159 is distant 254.89 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

78.19 pc
254.89 ly
-7 km/s
-0.022 arcsec/year
0.017 arcsec/year

Spectral properties of HR7159

HR7159 belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR7159 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7159. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7159