HR3946

Below the horizon. Rise: 15:35 | Tran: 19:17 | Set: 22:59

Alt: -62.59° Az: 0.70° Direction: North

HR3946 is a variable main-sequence star of spectral class B4 in the constellation of Hydra.

HR3946 visual magnitude is 6.21. Because of its faintness, HR3946 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 HR3946. The red arrow shows the motion of HR3946 during the next 10000 years (-8.17 arcmin in Right Ascension and 3.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 10h 00m 16s

Declination -24° 04’ 21”

Hour Angle 12h 01m 24s

Sidereal Time 22h 01m 41s

J2000

Right Ascension 09h 59m 06s

Declination -23° 57’ 01”

Galactic Coordinates

Galactic Longitude 259.77°

Galactic Latitude 24.14°

Finder Chart

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Finder chart for HR3946.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.21

Class Main-sequence

Absolute magnitude -0.21

Spectral Type B4V

Color Index (B-V) -0.1

Temperature 11573K

The red dot in the diagram below shows where HR3946 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3946. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR3946 is distant 628.13 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.

Distance (parsec) 192.68

Distance (light year) 628.13

Radial Speed 15 km/s

Proper Motion RA -0.049 arcsec/y

Proper Motion Dec 0.023"/y

Alternative Designations

Henry Draper Catalogue HD86612

SAO Catalogue SAO178271

Hipparcos Catalogue HIP48943

Durchmusterung Catalogue CD-23 8898

General Catalogue of Variable Stars Var?

Visibility from Your Location

Today's HR3946 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 114.1° RISE 15:35

Max altitude: 14.4° TRANSIT 19:17

Azimuth: 245.9° SET 22:59

Set Location

Other stars in Hydra