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A Complete Guide to the Solar System and the Night Sky
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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 » 

HR6680

Altitude: 8.2°   Azimuth: 199.4°   Direction: South-South-West

HR6680 is a giant star in the constellation of Sagittarius.

HR6680 visual magnitude is 5.8. Because of its reltive faintness, HR6680 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 HR6680 is 0.04 arcsec per year in Right Ascension and -0.017 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR6680 star
DSS2 image of HR6680. The red arrow shows the motion of HR6680 during the next 10000 years (6.67 arcmin in Right Ascension and -2.83 arcmin in declination);

Key facts about HR6680

5.8
Giant

HR6680 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 8.2°
Azimuth: 199.4°
Direction: South-South-West

Celestial coordinates and finder chart of HR6680

HR6680 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 HR6680 are provided in the following table:

17h 56m 41s
-28° 03’ 55”
1.99°
-1.65°
Sagittarius

The simplified sky map below shows the position of HR6680 in the sky:

Finder chart HR6680 star
Simplified finder chart for HR6680.

Visibility of HR6680 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 HR6680 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: 118.1°
Max altitude: 10.5°
Azimuth: 241.9°

Distance of HR6680 from the Sun and relative movement

HR6680 is distant 164.07 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

50.33 pc
164.07 ly
7 km/s
0.04 arcsec/year
-0.017 arcsec/year

Spectral properties of HR6680

HR6680 belongs to spectral class A7 and has a luminosity class of III corresponding to a giant star.

2.29
A7III
8086K

The red dot in the diagram below shows where HR6680 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6680. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6680

SAO185975
SAO185975