υ2 Hydrae (upsilon2 Hydrae)

Below the horizon. Rise: 11:13 | Tran: 16:46 | Set: 22:22

Alt: -64.21° Az: 65.60° Direction: South-West

υ2 Hydrae is a variable giant star of spectral class B9 in the constellation of Hydra.

υ2 Hydrae visual magnitude is 4.6. Because of its moderate brightness, υ2 Hydrae is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of υ2 Hydrae (upsilon2 Hydrae) star

DSS2 image of υ2 Hydrae. The red arrow shows the motion of υ2 Hydrae during the next 10000 years (-6.17 arcmin in Right Ascension and 3.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 10h 06m 22s

Declination -13° 11’ 21”

Hour Angle 13h 36m 02s

Sidereal Time 23h 42m 24s

J2000

Right Ascension 10h 05m 07s

Declination -13° 03’ 52”

Galactic Coordinates

Galactic Longitude 252.46°

Galactic Latitude 33.06°

Finder Chart

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Finder chart for υ2 Hydrae (upsilon2 Hydrae).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.6

Class Giant

Absolute magnitude -0.05

Spectral Type B9III

Color Index (B-V) -0.09

Temperature 11407K

The red dot in the diagram below shows where υ2 Hydrae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of υ2 Hydrae. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

υ2 Hydrae is distant 276.98 light years from the Sun and it is moving far from the Sun at the speed of 28 kilometers per second.

Distance (parsec) 84.96

Distance (light year) 276.98

Radial Speed 28 km/s

Proper Motion RA -0.037 arcsec/y

Proper Motion Dec 0.018"/y

Alternative Designations

Bayer designation υ2 Hydrae
(upsilon2 Hydrae)

Flamsteed designation 40 Hydrae

Henry Draper Catalogue HD87504

SAO Catalogue SAO155713

Hipparcos Catalogue HIP49402

Durchmusterung Catalogue BD-12 3073

FK5 Catalogue 1261

General Catalogue of Variable Stars 4725

Visibility from Your Location

Today's υ2 Hydrae (upsilon2 Hydrae) rise, transit and set times from Monterrey, México are the following (all times relative to the local timezone America/Monterrey):

Azimuth: 103.2° RISE 11:13

Max altitude: 51.1° TRANSIT 16:46

Azimuth: 256.8° SET 22:22

Name:	Monterrey, México
Latitude:	25° 40' 30.4" N
Longitude:	100° 19' 4.8" W
Timezone:	America/Monterrey

Set Location

Other stars in Hydra