η Librae (eta Librae)

Below the horizon. Rise: 12:09 | Tran: 16:45 | Set: 21:20

Alt: -35.38° Az: 290.94° Direction: West-North-West

η Librae is a hypergiant star of spectral class F0 in the constellation of Libra.

η Librae visual magnitude is 5.41. Because of its faintness, η Librae 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 η Librae. The red arrow shows the motion of η Librae during the next 10000 years (-5.67 arcmin in Right Ascension and -11.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 15h 45m 28s

Declination -15° 44’ 57”

Hour Angle 08h 30m 48s

Sideral Time 00h 16m 16s

J2000

Right Ascension 15h 44m 04s

Declination -15° 40’ 22”

Galactic Coordinates

Galactic Longitude 352.52°

Galactic Latitude 30.13°

Finder Chart

Simplified finder chart for η Librae (eta Librae).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.41

Class Hypergiant

Absolute magnitude 2.14

Spectral Type F0IV

Color Index (B-V) 0.23

Temperature 7938K

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

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

Distance, Radial Speed, Proper Motion

η Librae is distant 146.78 light years from the Sun and it is moving towards the Sun at the speed of 31 kilometers per second.

Distance (parsec) 45.02

Distance (light year) 146.78

Radial Speed -31 km/s

Proper Motion RA -0.034 arcsec/y

Proper Motion Dec -0.066"/y

Alternative Designations

Bayer designation η Librae
(eta Librae)

Flamsteed designation 44 Librae

Henry Draper Catalogue HD140417

SAO Catalogue SAO159466

Hipparcos Catalogue HIP77060

Durchmusterung Catalogue BD-15 4171

FK5 Catalogue 3246

Visibility from Your Location

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

Azimuth: 105.7° RISE 12:09

Max altitude: 22.8° TRANSIT 16:45

Azimuth: 254.3° SET 21:20

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

Location

Other stars in Libra