Your guide to the Solar System and the night sky
By donating now you help keep this site alive and free from ads. Please consider supporting this project.
🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:50  ☀️ Transit: 13:04  🌅 Sunset: 19:19


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 skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR7729:

HR7729 is below the horizon from Greenwich, United Kingdom [change].

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 emisphere. 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 [change]
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 [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 125.2°
Max altitude: 3.3°
Azimuth: 234.8°
HR7729 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR7729

The image below is a photograph of HR7729 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 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);

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