55 Hydrae

Below the horizon. Rise: 20:07 | Tran: 23:37 | Set: 3:11

Alt: -57.59° Az: 312.72° Direction: North-West

55 Hydrae is a hypergiant star of spectral class A0 in the constellation of Hydra.

55 Hydrae visual magnitude is 5.63. Because of its faintness, 55 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 55 Hydrae. The red arrow shows the motion of 55 Hydrae during the next 10000 years (-1.33 arcmin in Right Ascension and -2.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 14h 48m 51s

Declination -25° 43’ 46”

Hour Angle 10h 16m 19s

Sidereal Time 01h 05m 11s

J2000

Right Ascension 14h 47m 22s

Declination -25° 37’ 27”

Galactic Coordinates

Galactic Longitude 333.34°

Galactic Latitude 30.32°

Finder Chart

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Finder chart for 55 Hydrae.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.63

Class Hypergiant

Absolute magnitude -0.74

Spectral Type A0III

Color Index (B-V)

Temperature 10125K

The red dot in the diagram below shows where 55 Hydrae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 55 Hydrae. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

55 Hydrae is distant 612.78 light years from the Sun and it is moving towards the Sun at the speed of 18 kilometers per second.

Distance (parsec) 187.97

Distance (light year) 612.78

Radial Speed -18 km/s

Proper Motion RA -0.008 arcsec/y

Proper Motion Dec -0.016"/y

Alternative Designations

Flamsteed designation 55 Hydrae

Henry Draper Catalogue HD130158

SAO Catalogue SAO182875

Hipparcos Catalogue HIP72323

Durchmusterung Catalogue CD-2510534

Visibility from Your Location

Today's 55 Hydrae rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 115.7° RISE 20:07

Max altitude: 12.8° TRANSIT 23:37

Azimuth: 244.3° SET 3:11

Set Location

Other stars in Hydra