47 Hydrae

Above the horizon. Rise: 19:33 | Tran: 23:08 | Set: 2:47

Alt: 13.02° Az: 171.65° Direction: South

47 Hydrae is a main-sequence star of spectral class B8 in the constellation of Hydra.

47 Hydrae visual magnitude is 5.15. Because of its faintness, 47 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 47 Hydrae. The red arrow shows the motion of 47 Hydrae during the next 10000 years (-8.17 arcmin in Right Ascension and -4.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 13h 59m 57s

Declination -25° 05’ 41”

Hour Angle 23h 24m 03s

Sidereal Time 13h 24m 00s

J2000

Right Ascension 13h 58m 31s

Declination -24° 58’ 19”

Galactic Coordinates

Galactic Longitude 321.66°

Galactic Latitude 35.45°

Finder Chart

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Finder chart for 47 Hydrae.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.15

Class Main-sequence

47 Hydrae is also a Sh chemically peculiar star.

Absolute magnitude 0.06

Spectral Type B8V

Color Index (B-V) -0.1

Temperature 11573K

The red dot in the diagram below shows where 47 Hydrae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 47 Hydrae. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

47 Hydrae is distant 339.23 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.

Distance (parsec) 104.06

Distance (light year) 339.23

Radial Speed 5 km/s

Proper Motion RA -0.049 arcsec/y

Proper Motion Dec -0.029"/y

Alternative Designations

Flamsteed designation 47 Hydrae

Henry Draper Catalogue HD121847

SAO Catalogue SAO182134

Hipparcos Catalogue HIP68269

Durchmusterung Catalogue CD-2411202

FK5 Catalogue 515

Visibility from Your Location

Today's 47 Hydrae rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 115.1° RISE 19:33

Max altitude: 13.4° TRANSIT 23:08

Azimuth: 244.9° SET 2:47

Set Location

Other stars in Hydra