HR6999

Above the horizon. Rise: 22:21 | Tran: 4:07 | Set: 9:49

Alt: 17.17° Az: 118.75° Direction: East-South-East

HR6999 is a multiple sub-giant star of spectral class F9 in the constellation of Serpens.

HR6999 visual magnitude is 6.49. Because of its faintness, HR6999 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 HR6999. The red arrow shows the motion of HR6999 during the next 10000 years (-1.50 arcmin in Right Ascension and 5.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 18h 39m 43s

Declination -03° 10’ 10”

Hour Angle 20h 11m 54s

Sidereal Time 14h 51m 37s

J2000

Right Ascension 18h 38m 23s

Declination -03° 11’ 36”

Galactic Coordinates

Galactic Longitude 28.6°

Galactic Latitude 1.44°

Finder Chart

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Finder chart for HR6999.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.49

Class Sub-giant

Absolute magnitude 3.00

Spectral Type F9IV

Color Index (B-V) 0.55

Temperature 6170K

The red dot in the diagram below shows where HR6999 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6999. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR6999 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 HR6999 double sysyem:

Main star magnitude 6.49

Secondary star magnitude 6.59

Magnitude difference 0.1

Separation 0.1 arcsec

Distance, Radial Speed, Proper Motion

HR6999 is distant 162.92 light years from the Sun and it is moving towards the Sun at the speed of 21 kilometers per second.

Distance (parsec) 49.98

Distance (light year) 162.92

Radial Speed -21 km/s

Proper Motion RA -0.009 arcsec/y

Proper Motion Dec 0.032"/y

Alternative Designations

Henry Draper Catalogue HD172088

SAO Catalogue SAO142461

Hipparcos Catalogue HIP91394

Durchmusterung Catalogue BD-03 4331

Aitken Double Star Catalogue ADS11520

Visibility from Your Location

Today's HR6999 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 93.2° RISE 22:21

Max altitude: 35.4° TRANSIT 4:07

Azimuth: 266.8° SET 9:49

Set Location

Other stars in Serpens