HR6780

Below the horizon. Rise: 19:33 | Tran: 0:09 | Set: 4:46

Alt: -16.71° Az: 116.25° Direction: East-South-East

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.

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

Right Ascension 18h 11m 44s

Declination -30° 43’ 18”

Hour Angle 17h 51m 04s

Sidereal Time 12h 02m 49s

J2000

Right Ascension 18h 10m 05s

Declination -30° 43’ 42”

Galactic Coordinates

Galactic Longitude 1.1°

Galactic Latitude -5.49°

Finder Chart

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Finder chart for HR6780.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.53

Class Bright giant

Absolute magnitude 0.31

Spectral Type K1II

Color Index (B-V) 0.97

Temperature 4816K

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

Main star magnitude 5.53

Secondary star magnitude 7.83

Magnitude difference 2.3

Separation 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.

Distance (parsec) 110.50

Distance (light year) 360.22

Radial Speed -22 km/s

Proper Motion RA 0.003 arcsec/y

Proper Motion Dec -0.027"/y

Alternative Designations

Henry Draper Catalogue HD166023

SAO Catalogue SAO209803

Hipparcos Catalogue HIP89020

Durchmusterung Catalogue CD-3015316

Visibility from Your Location

Today's HR6780 rise, transit and set times from Zhoujia, China are the following (all times relative to the local timezone Asia/Shanghai):

Azimuth: 120.7° RISE 19:33

Max altitude: 28.9° TRANSIT 0:09

Azimuth: 239.3° SET 4:46

Name:	Zhoujia, China
Latitude:	30° 25' 8.8" N
Longitude:	107° 32' 16.8" E
Timezone:	Asia/Shanghai

Set Location

Other stars in Sagittarius