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
Donate Now! Help keep this site free and ads-free!
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:04  
clear_day Transit: 12:06  
SunsetSet: 18:09
sunny DaytimeWhat's Visible Now?
All Constellations » Sagittarius » 

HR6798

Altitude: 17.6°   Azimuth: 193.8°   Direction: South-South-West

HR6798 is a multiple main-sequence star in the constellation of Sagittarius.

HR6798 visual magnitude is 6.36. Because of its reltive faintness, HR6798 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 HR6798 is -0.002 arcsec per year in Right Ascension and -0.028 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR6798 star
DSS2 image of HR6798. The red arrow shows the motion of HR6798 during the next 10000 years (-0.33 arcmin in Right Ascension and -4.67 arcmin in declination);

Key facts about HR6798

6.36
Main-sequence

HR6798 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 17.6°
Azimuth: 193.8°
Direction: South-South-West

Celestial coordinates and finder chart of HR6798

HR6798 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 HR6798 are provided in the following table:

18h 11m 14s
-19° 50’ 31”
10.79°
-0.5°
Sagittarius

The simplified sky map below shows the position of HR6798 in the sky:

Finder chart HR6798 star
Simplified finder chart for HR6798.

Visibility of HR6798 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 HR6798 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: 109.8°
Max altitude: 18.7°
Azimuth: 250.2°

Distance of HR6798 from the Sun and relative movement

HR6798 is distant 364.65 light years from the Sun and it is moving towards the Sun at the speed of 32 kilometers per second.

111.86 pc
364.65 ly
-32 km/s
-0.002 arcsec/year
-0.028 arcsec/year

Spectral properties of HR6798

HR6798 belongs to spectral class A4 and has a luminosity class of V corresponding to a main-sequence star.

1.12
A4V
8486K

The red dot in the diagram below shows where HR6798 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6798. Attribution: Richard Powell / CC BY-SA

HR6798 star system properties

HR6798 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR6798 double sysyem:

6.36
6.76
0.4
1.2 arcsec

Alternative designations of HR6798

SAO161153
SAO161153