HR8158

Above the horizon. Rise: 3:42 | Tran: 11:42 | Set: 19:42

Alt: 13.96° Az: 288.12° Direction: West-North-West

HR8158 is a sub-giant star of spectral class B6 in the constellation of Vulpecula.

HR8158 visual magnitude is 6.29. Because of its faintness, HR8158 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 HR8158. The red arrow shows the motion of HR8158 during the next 10000 years (0.50 arcmin in Right Ascension and 1.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 21h 21m 22s

Declination +22° 08’ 01”

Hour Angle 06h 21m 16s

Sidereal Time 03h 42m 39s

J2000

Right Ascension 21h 20m 13s

Declination +22° 01’ 35”

Galactic Coordinates

Galactic Longitude 71.53°

Galactic Latitude -19.13°

Finder Chart

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Finder chart for HR8158.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.29

Class Sub-giant

Absolute magnitude 0.20

Spectral Type B6IV

Color Index (B-V) -0.08

Temperature 11247K

The red dot in the diagram below shows where HR8158 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8158. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR8158 is distant 538.84 light years from the Sun and it is moving towards the Sun at the speed of 17 kilometers per second.

Distance (parsec) 165.29

Distance (light year) 538.84

Radial Speed -17 km/s

Proper Motion RA 0.003 arcsec/y

Proper Motion Dec 0.01"/y

Alternative Designations

Henry Draper Catalogue HD203206

SAO Catalogue SAO89628

Hipparcos Catalogue HIP105344

Durchmusterung Catalogue BD+21 4521

Visibility from Your Location

Today's HR8158 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 67.9° RISE 3:42

Max altitude: 60.7° TRANSIT 11:42

Azimuth: 292.1° SET 19:42

Set Location

Other stars in Vulpecula