HR6689

Above the horizon. Rise: 13:03 | Tran: 19:01 | Set: 1:04

Alt: 17.27° Az: 247.13° Direction: West-South-West

HR6689 is a double main-sequence star of spectral class A3 in the constellation of Ophiuchus.

HR6689 visual magnitude is 5.97. Because of its faintness, HR6689 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 HR6689. The red arrow shows the motion of HR6689 during the next 10000 years (4.67 arcmin in Right Ascension and -2.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 17h 58m 20s

Declination +00° 03’ 54”

Hour Angle 04h 06m 30s

Sideral Time 22h 04m 51s

J2000

Right Ascension 17h 57m 04s

Declination +00° 03’ 59”

Galactic Coordinates

Galactic Longitude 26.7°

Galactic Latitude 12.1°

Finder Chart

Simplified finder chart for HR6689.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.97

Class Main-sequence

Absolute magnitude 1.07

Spectral Type A3V

Color Index (B-V) 0.1

Temperature 9028K

The red dot in the diagram below shows where HR6689 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6689. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR6689 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR6689 double sysyem:

Main star magnitude 5.97

Secondary star magnitude 6.17

Magnitude difference 0.2

Separation 0.2 arcsec

Distance, Radial Speed, Proper Motion

HR6689 is distant 311.66 light years from the Sun and it is moving towards the Sun at the speed of 11 kilometers per second.

Distance (parsec) 95.60

Distance (light year) 311.66

Radial Speed -11 km/s

Proper Motion RA 0.028 arcsec/y

Proper Motion Dec -0.016"/y

Alternative Designations

Henry Draper Catalogue HD163624

SAO Catalogue SAO122950

Hipparcos Catalogue HIP87875

Durchmusterung Catalogue BD+00 3816

Aitken Double Star Catalogue ADS10912

Visibility from Your Location

Today's HR6689 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 89.9° RISE 13:03

Max altitude: 38.6° TRANSIT 19:01

Azimuth: 270.1° SET 1:04

Name:	Greenwich, UK
Latitude:	51° 28' 48.0" N
Longitude:	0° 0' 0.0" E
Timezone:	Europe/London

Location

Other stars in Ophiuchus