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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:15 
Transit: 13:06 
Sunset: 20:56
wb_twilight   (Nautical Twilight)   What's Visible Now?
All Constellations » Sagittarius » 

HR6780

Below the horizon.  Rise: 20:09 | Tran: 22:55 | Set: 1:45
Alt: -18.57°   Az: 243.68°   Direction: West-South-West

HR6780 is a double bright giant star of spectral class K1 in the constellation of Sagittarius.

HR6780 visual magnitude is 5.53. Because of its faintness, HR6780 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of HR6780 star
DSS2 image of HR6780. The red arrow shows the motion of HR6780 during the next 10000 years (0.50 arcmin in Right Ascension and -4.50 arcmin in declination);

Celestial Coordinates

Apparent

18h 11m 40s
-30° 43’ 19”
05h 25m 04s
23h 36m 45s

J2000

18h 10m 05s
-30° 43’ 42”

Galactic Coordinates

1.1°
-5.49°

Finder Chart

Finder chart HR6780 star
Simplified finder chart for HR6780.

Magnitude, Color, Spectral Class

5.53
Bright giant

0.31
K1II
4816K

The red dot in the diagram below shows where HR6780 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6780. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR6780 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR6780 double sysyem:

5.53
7.83
2.3
3.9 arcsec

Distance, Radial Speed, Proper Motion

HR6780 is distant 360.22 light years from the Sun and it is moving towards the Sun at the speed of 22 kilometers per second.

110.50
360.22
-22 km/s
0.003 arcsec/y
-0.027"/y

Alternative Designations

SAO209803
SAO209803

Visibility from Your Location

Today's HR6780 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 120.7°
Max altitude: 7.8°
Azimuth: 239.3°