HR6690

Below the horizon. Rise: 13:14 | Tran: 19:44 | Set: 2:19

Alt: -32.03° Az: 1.34° Direction: North

HR6690 is a giant star of spectral class B9 in the constellation of Ophiuchus.

HR6690 visual magnitude is 6.29. Because of its faintness, HR6690 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 HR6690. The red arrow shows the motion of HR6690 during the next 10000 years (4.33 arcmin in Right Ascension and 0.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 17h 58m 08s

Declination +06° 29’ 10”

Hour Angle 12h 04m 35s

Sideral Time 06h 02m 43s

J2000

Right Ascension 17h 56m 56s

Declination +06° 29’ 16”

Galactic Coordinates

Galactic Longitude 32.57°

Galactic Latitude 15.06°

Finder Chart

Simplified finder chart for HR6690.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.29

Class Giant

Absolute magnitude -0.31

Spectral Type B9III

Color Index (B-V) 0

Temperature 10125K

The red dot in the diagram below shows where HR6690 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6690. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR6690 is distant 680.58 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.

Distance (parsec) 208.77

Distance (light year) 680.58

Radial Speed -14 km/s

Proper Motion RA 0.026 arcsec/y

Proper Motion Dec 0.002"/y

Alternative Designations

Henry Draper Catalogue HD163641

SAO Catalogue SAO122949

Hipparcos Catalogue HIP87866

Durchmusterung Catalogue BD+06 3578

Visibility from Your Location

Today's HR6690 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 83.5° RISE 13:14

Max altitude: 45.0° TRANSIT 19:44

Azimuth: 276.5° SET 2:19

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

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Location

Other stars in Ophiuchus