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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:40  
clear_day Transit: 12:10  
SunsetSet: 17:41
sunny DaytimeWhat's Visible Now?
All Constellations » Sagittarius » 


Altitude: -10.2°   Azimuth: 224.4°   Direction: South-West

HR7729 is a main-sequence star in the constellation of Sagittarius.

HR7729 visual magnitude is 6.53. Because of its reltive faintness, HR7729 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 HR7729 is 0.009 arcsec per year in Right Ascension and 0.081 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7729 star
DSS2 image of HR7729. The red arrow shows the motion of HR7729 during the next 10000 years (1.50 arcmin in Right Ascension and 13.50 arcmin in declination);

Key facts about HR7729


HR7729 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -10.2°
Azimuth: 224.4°
Direction: South-West

Celestial coordinates and finder chart of HR7729

HR7729 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR7729 are provided in the following table:

20h 16m 26s
-35° 11’ 52”

The simplified sky map below shows the position of HR7729 in the sky:

Finder chart HR7729 star
Simplified finder chart for HR7729.

Visibility of HR7729 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 HR7729 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: 125.2°
Max altitude: 3.3°
Azimuth: 234.8°

Distance of HR7729 from the Sun and relative movement

HR7729 is distant 138.84 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

42.59 pc
138.84 ly
-8 km/s
0.009 arcsec/year
0.081 arcsec/year

Spectral properties of HR7729

HR7729 belongs to spectral class F2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR7729 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7729. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7729