λ Hydrae (lambda Hydrae)

Below the horizon. Rise: 12:25 | Tran: 17:45 | Set: 23:06

Alt: -52.23° Az: 301.50° Direction: West-North-West

λ Hydrae is a multiple hypergiant star of spectral class K0 in the constellation of Hydra.

λ Hydrae visual magnitude is 3.61. Because of its moderate brightness, λ 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.

DSS2 image of λ Hydrae. The red arrow shows the motion of λ Hydrae during the next 1000 years (-3.37 arcmin in Right Ascension and -1.48 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 10h 11m 50s

Declination -12° 28’ 49”

Hour Angle 09h 50m 40s

Sidereal Time 20h 02m 30s

J2000

Right Ascension 10h 10m 35s

Declination -12° 21’ 15”

Galactic Coordinates

Galactic Longitude 253.01°

Galactic Latitude 34.5°

Finder Chart

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Finder chart for λ Hydrae (lambda Hydrae).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 3.61

Class Hypergiant

Absolute magnitude 0.88

Spectral Type K0III

Color Index (B-V) 1.01

Temperature 4719K

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

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

Star System Properties

λ Hydrae is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the λ Hydrae double sysyem:

Main star magnitude 3.61

Secondary star magnitude 11.31

Magnitude difference 7.7

Separation 112.2 arcsec

Distance, Radial Speed, Proper Motion

λ Hydrae is distant 114.63 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.

Distance (parsec) 35.16

Distance (light year) 114.63

Radial Speed 19 km/s

Proper Motion RA -0.202 arcsec/y

Proper Motion Dec -0.089"/y

Alternative Designations

Bayer designation λ Hydrae
(lambda Hydrae)

Flamsteed designation 41 Hydrae

Henry Draper Catalogue HD88284

SAO Catalogue SAO155785

Hipparcos Catalogue HIP49841

Durchmusterung Catalogue BD-11 2820

FK5 Catalogue 381

Aitken Double Star Catalogue ADS7671

Visibility from Your Location

Today's λ Hydrae (lambda Hydrae) rise, transit and set times from Málaga MA (ES) are the following (all times relative to the local timezone Europe/Madrid):

Azimuth: 102.5° RISE 12:25

Max altitude: 40.8° TRANSIT 17:45

Azimuth: 257.5° SET 23:06

Name:	Málaga MA (ES)
Latitude:	36° 43' 12.6" N
Longitude:	4° 25' 13.2" W
Timezone:	Europe/Madrid

Set Location

Other stars in Hydra