HR5990

Below the horizon. Rise: 17:31 | Tran: 22:58 | Set: 4:28

Alt: -44.70° Az: 2.52° Direction: South-West

HR5990 is a double hypergiant star of spectral class K0 in the constellation of Ophiuchus.

HR5990 visual magnitude is 6.41. Because of its faintness, HR5990 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 HR5990. The red arrow shows the motion of HR5990 during the next 10000 years (-5.00 arcmin in Right Ascension and 0.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 16h 07m 21s

Declination -06° 12’ 24”

Hour Angle 12h 07m 12s

Sidereal Time 04h 14m 33s

J2000

Right Ascension 16h 05m 59s

Declination -06° 08’ 21”

Galactic Coordinates

Galactic Longitude 5.05°

Galactic Latitude 32.41°

Finder Chart

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Finder chart for HR5990.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.41

Class Hypergiant

Absolute magnitude 1.27

Spectral Type K0

Color Index (B-V) 1.03

Temperature 4672K

The red dot in the diagram below shows where HR5990 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR5990. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR5990 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR5990 double sysyem:

Main star magnitude 6.41

Secondary star magnitude 12.21

Magnitude difference 5.8

Separation 9.3 arcsec

Distance, Radial Speed, Proper Motion

HR5990 is distant 347.18 light years from the Sun and it is moving towards the Sun at the speed of 32 kilometers per second.

Distance (parsec) 106.50

Distance (light year) 347.18

Radial Speed -32 km/s

Proper Motion RA -0.03 arcsec/y

Proper Motion Dec 0.004"/y

Alternative Designations

Henry Draper Catalogue HD144390

SAO Catalogue SAO140947

Hipparcos Catalogue HIP78870

Durchmusterung Catalogue BD-05 4235

Visibility from Your Location

Today's HR5990 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 96.2° RISE 17:31

Max altitude: 32.3° TRANSIT 22:58

Azimuth: 263.8° SET 4:28

Set Location

Other stars in Ophiuchus