20 Hydrae

Above the horizon. Rise: 3:40 | Tran: 8:53 | Set: 14:06

Alt: 14.68° Az: 125.85° Direction: South-East

20 Hydrae is a bright giant star of spectral class G8 in the constellation of Hydra.

20 Hydrae visual magnitude is 5.46. Because of its faintness, 20 Hydrae 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 20 Hydrae. The red arrow shows the motion of 20 Hydrae during the next 10000 years (-3.17 arcmin in Right Ascension and -1.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 09h 10m 48s

Declination -08° 53’ 22”

Hour Angle 20h 29m 53s

Sideral Time 05h 40m 41s

J2000

Right Ascension 09h 09m 35s

Declination -08° 47’ 16”

Galactic Coordinates

Galactic Longitude 238.61°

Galactic Latitude 25.4°

Finder Chart

Simplified finder chart for 20 Hydrae.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.46

Class Bright giant

Absolute magnitude -1.01

Spectral Type G8II

Color Index (B-V) 1.01

Temperature 4719K

The red dot in the diagram below shows where 20 Hydrae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 20 Hydrae. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

20 Hydrae is distant 641.73 light years from the Sun and it is moving far from the Sun at the speed of 26 kilometers per second.

Distance (parsec) 196.85

Distance (light year) 641.73

Radial Speed 26 km/s

Proper Motion RA -0.019 arcsec/y

Proper Motion Dec -0.01"/y

Alternative Designations

Flamsteed designation 20 Hydrae

Henry Draper Catalogue HD78732

SAO Catalogue SAO136622

Hipparcos Catalogue HIP44961

Durchmusterung Catalogue BD-08 2593

Visibility from Your Location

Today's 20 Hydrae rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 98.9° RISE 3:40

Max altitude: 29.6° TRANSIT 8:53

Azimuth: 261.1° SET 14:06

Set Location

Other stars in Hydra