HR4839

Below the horizon. Rise: 10:54 | Tran: 14:01 | Set: 17:08

Alt: -2.35° Az: 135.59° Direction: South-East

HR4839 is a giant star of spectral class K4 in the constellation of Hydra.

HR4839 visual magnitude is 5.48. Because of its faintness, HR4839 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 HR4839. The red arrow shows the motion of HR4839 during the next 10000 years (-4.50 arcmin in Right Ascension and -6.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 12h 45m 19s

Declination -28° 27’ 31”

Hour Angle 20h 29m 15s

Sideral Time 09h 14m 35s

J2000

Right Ascension 12h 44m 00s

Declination -28° 19’ 26”

Galactic Coordinates

Galactic Longitude 300.95°

Galactic Latitude 34.52°

Finder Chart

Simplified finder chart for HR4839.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.48

Class Giant

Absolute magnitude 0.05

Spectral Type K4III

Color Index (B-V) 1.34

Temperature 4051K

The red dot in the diagram below shows where HR4839 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4839. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR4839 is distant 396.59 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

Distance (parsec) 121.65

Distance (light year) 396.59

Radial Speed 7 km/s

Proper Motion RA -0.027 arcsec/y

Proper Motion Dec -0.038"/y

Alternative Designations

Henry Draper Catalogue HD110666

SAO Catalogue SAO181063

Hipparcos Catalogue HIP62131

Durchmusterung Catalogue CD-27 8832

FK5 Catalogue 479

Visibility from Your Location

Today's HR4839 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 118.5° RISE 10:54

Max altitude: 10.1° TRANSIT 14:01

Azimuth: 241.5° SET 17:08

Name:	Greenwich, UK
Latitude:	51° 28' 48.0" N
Longitude:	0° 0' 0.0" E
Timezone:	Europe/London

Location

Other stars in Hydra