HR5815

Below the horizon. Rise: 11:46 | Tran: 16:59 | Set: 22:12

Alt: -25.22° Az: 288.53° Direction: West-North-West

HR5815 is a double sub-giant star of spectral class F6 in the constellation of Libra.

HR5815 visual magnitude is 6.5. Because of its faintness, HR5815 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 HR5815. The red arrow shows the motion of HR5815 during the next 10000 years (3.67 arcmin in Right Ascension and -2.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 15h 40m 00s

Declination -08° 52’ 25”

Hour Angle 07h 58m 59s

Sideral Time 23h 38m 59s

J2000

Right Ascension 15h 38m 39s

Declination -08° 47’ 39”

Galactic Coordinates

Galactic Longitude 357.31°

Galactic Latitude 35.87°

Finder Chart

Simplified finder chart for HR5815.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.5

Class Sub-giant

Absolute magnitude 4.73

Spectral Type F6IV

Color Index (B-V) 0.53

Temperature 6256K

The red dot in the diagram below shows where HR5815 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR5815. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR5815 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 HR5815 double sysyem:

Main star magnitude 6.5

Secondary star magnitude 6.7

Magnitude difference 0.2

Separation 11.9 arcsec

Distance, Radial Speed, Proper Motion

HR5815 is distant 73.74 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

Distance (parsec) 22.62

Distance (light year) 73.74

Radial Speed 4 km/s

Proper Motion RA 0.022 arcsec/y

Proper Motion Dec -0.014"/y

Alternative Designations

Henry Draper Catalogue HD139460

SAO Catalogue SAO140671

Hipparcos Catalogue HIP76602

Durchmusterung Catalogue BD-08 4031

Aitken Double Star Catalogue ADS9728

Visibility from Your Location

Today's HR5815 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 98.9° RISE 11:46

Max altitude: 29.6° TRANSIT 16:59

Azimuth: 261.1° SET 22:12

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

Location

Other stars in Libra