19 Hydrae

Above the horizon. Rise: 10:55 | Tran: 16:09 | Set: 21:23

Alt: 24.15° Az: 146.01° Direction: South-West

19 Hydrae is a double giant star of spectral class B9 in the constellation of Hydra.

19 Hydrae visual magnitude is 5.6. Because of its faintness, 19 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 19 Hydrae. The red arrow shows the motion of 19 Hydrae during the next 10000 years (-3.17 arcmin in Right Ascension and -0.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 09h 09m 57s

Declination -08° 41’ 37”

Hour Angle 21h 55m 43s

Sidereal Time 07h 05m 40s

J2000

Right Ascension 09h 08m 42s

Declination -08° 35’ 21”

Galactic Coordinates

Galactic Longitude 238.29°

Galactic Latitude 25.34°

Finder Chart

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Finder chart for 19 Hydrae.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.6

Class Giant

Absolute magnitude -1.60

Spectral Type B9III

Color Index (B-V) -0.06

Temperature 10941K

The red dot in the diagram below shows where 19 Hydrae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 19 Hydrae. Attribution: Richard Powell / CC BY-SA

Star System Properties

19 Hydrae is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the 19 Hydrae double sysyem:

Main star magnitude 5.6

Secondary star magnitude 10.6

Magnitude difference 5

Separation 1 arcsec

Distance, Radial Speed, Proper Motion

19 Hydrae is distant 898.07 light years from the Sun and it is moving far from the Sun at the speed of 23 kilometers per second.

Distance (parsec) 275.48

Distance (light year) 898.07

Radial Speed 23 km/s

Proper Motion RA -0.019 arcsec/y

Proper Motion Dec -0.002"/y

Alternative Designations

Flamsteed designation 19 Hydrae

Henry Draper Catalogue HD78556

SAO Catalogue SAO136604

Hipparcos Catalogue HIP44883

Durchmusterung Catalogue BD-08 2588

FK5 Catalogue 2725

Visibility from Your Location

Today's 19 Hydrae rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 98.7° RISE 10:55

Max altitude: 29.8° TRANSIT 16:09

Azimuth: 261.3° SET 21:23

Set Location

Other stars in Hydra