HR6989

Below the horizon. Rise: 20:52 | Tran: 1:41 | Set: 6:27

Alt: -51.79° Az: 14.34° Direction: South

HR6989 is a multiple sub-giant star of spectral class B9 in the constellation of Scutum.

HR6989 visual magnitude is 6.47. Because of its faintness, HR6989 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 HR6989. The red arrow shows the motion of HR6989 during the next 10000 years (3.17 arcmin in Right Ascension and 0.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 18h 39m 31s

Declination -13° 58’ 50”

Hour Angle 12h 36m 19s

Sidereal Time 07h 15m 50s

J2000

Right Ascension 18h 38m 04s

Declination -14° 00’ 16”

Galactic Coordinates

Galactic Longitude 18.95°

Galactic Latitude -3.44°

Finder Chart

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Finder chart for HR6989.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.47

Class Sub-giant

Absolute magnitude -0.17

Spectral Type B9IV

Color Index (B-V) 0.21

Temperature 8086K

The red dot in the diagram below shows where HR6989 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6989. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR6989 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR6989 double sysyem:

Main star magnitude 6.47

Secondary star magnitude 11.27

Magnitude difference 4.8

Separation 2 arcsec

Distance, Radial Speed, Proper Motion

HR6989 is distant 693.62 light years from the Sun and it is moving towards the Sun at the speed of 19 kilometers per second.

Distance (parsec) 212.77

Distance (light year) 693.62

Radial Speed -19 km/s

Proper Motion RA 0.019 arcsec/y

Proper Motion Dec 0.002"/y

Alternative Designations

Henry Draper Catalogue HD171957

SAO Catalogue SAO161687

Hipparcos Catalogue HIP91369

Durchmusterung Catalogue BD-14 5139

Aitken Double Star Catalogue ADS11512

Visibility from Your Location

Today's HR6989 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 104.0° RISE 20:52

Max altitude: 24.5° TRANSIT 1:41

Azimuth: 256.0° SET 6:27

Set Location

Other stars in Scutum