3 Hydrae

Below the horizon. Rise: 12:52 | Tran: 18:09 | Set: 23:27

Alt: -15.80° Az: 83.04° Direction: East

3 Hydrae is a variable star of spectral class A1 in the constellation of Hydra.

3 Hydrae visual magnitude is 5.72. Because of its faintness, 3 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 3 Hydrae. The red arrow shows the motion of 3 Hydrae during the next 10000 years (-3.33 arcmin in Right Ascension and 2.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 08h 36m 42s

Declination -08° 04’ 16”

Hour Angle 16h 58m 55s

Sidereal Time 01h 35m 38s

J2000

Right Ascension 08h 35m 28s

Declination -07° 58’ 55”

Galactic Coordinates

Galactic Longitude 232.8°

Galactic Latitude 18.85°

Finder Chart

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Finder chart for 3 Hydrae.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.72

Class

3 Hydrae is also a SrCrEu chemically peculiar star.

Absolute magnitude 1.14

Spectral Type A1

Color Index (B-V) -0.03

Temperature 10516K

The red dot in the diagram below shows where 3 Hydrae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 3 Hydrae. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

3 Hydrae is distant 268.31 light years from the Sun and it is moving far from the Sun at the speed of 24 kilometers per second.

Distance (parsec) 82.30

Distance (light year) 268.31

Radial Speed 24 km/s

Proper Motion RA -0.02 arcsec/y

Proper Motion Dec 0.013"/y

Alternative Designations

Flamsteed designation 3 Hydrae

Henry Draper Catalogue HD72968

SAO Catalogue SAO136076

Hipparcos Catalogue HIP42146

Durchmusterung Catalogue BD-07 2540

FK5 Catalogue 2672

General Catalogue of Variable Stars HV Hya

Visibility from Your Location

Today's 3 Hydrae rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 98.1° RISE 12:52

Max altitude: 30.4° TRANSIT 18:09

Azimuth: 261.9° SET 23:27

Set Location

Other stars in Hydra