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 and help us to keep this site free and ad-free!
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:44  
clear_day Transit: 11:48  
SunsetSet: 15:51 south
wb_twilight Nautical TwilightWhat's Visible Now?
All Constellations » Sagittarius » 


Altitude: -27.5°   Azimuth: 99.8°   Direction: East

HR6842 is a bright giant star in the constellation of Sagittarius.

HR6842 visual magnitude is 4.65. Because of its moderate brightness, HR6842 should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about HR6842:

Bright giant

HR6842 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -27.5°
Azimuth: 99.8°
Direction: East

Celestial coordinates and finder chart of HR6842

HR6842 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 HR6842 are provided in the following table:

18h 18m 03s
-27° 02’ 33”

The simplified sky map below shows the position of HR6842 in the sky:

Finder chart HR6842 star
Simplified finder chart for HR6842.

Visibility of HR6842 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 HR6842 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: 117.0°
Max altitude: 11.5°
Azimuth: 243.0°

Digitized Sky Survey image of HR6842

The image below is a photograph of HR6842 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 HR6842 is 0.008 arcsec per year in Right Ascension and 0.005 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR6842 star
DSS2 image of HR6842. The red arrow shows the motion of HR6842 during the next 100000 years (13.33 arcmin in Right Ascension and 8.33 arcmin in declination);

Distance of HR6842 from the Sun and relative movement

HR6842 is distant 699.57 light years from the Sun and it is moving towards the Sun at the speed of 17 kilometers per second.

214.59 pc
699.57 ly
-17 km/s
0.008 arcsec/year
0.005 arcsec/year

Spectral properties of HR6842

HR6842 belongs to spectral class K3 and has a luminosity class of II corresponding to a bright giant star.


The red dot in the diagram below shows where HR6842 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6842. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6842