HR4739

Below the horizon. Rise: 13:15 | Tran: 17:47 | Set: 22:20

Alt: -7.77° Az: 211.02° Direction: South-South-West

HR4739 is a variable giant star of spectral class M4 in the constellation of Crux.

HR4739 visual magnitude is 5.5. Because of its faintness, HR4739 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 HR4739. The red arrow shows the motion of HR4739 during the next 10000 years (-5.17 arcmin in Right Ascension and 0.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 12h 28m 54s

Declination -59° 07’ 58”

Hour Angle 05h 37m 51s

Sidereal Time 18h 06m 45s

J2000

Right Ascension 12h 27m 28s

Declination -58° 59’ 30”

Galactic Coordinates

Galactic Longitude 299.84°

Galactic Latitude 3.74°

Finder Chart

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Finder chart for HR4739.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.5

Class Giant

Absolute magnitude -0.70

Spectral Type M4III

Color Index (B-V) 1.45

Temperature 3870K

The red dot in the diagram below shows where HR4739 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4739. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR4739 is distant 565.97 light years from the Sun and it is moving far from the Sun at the speed of 72 kilometers per second.

Distance (parsec) 173.61

Distance (light year) 565.97

Radial Speed 72 km/s

Proper Motion RA -0.031 arcsec/y

Proper Motion Dec 0.005"/y

Alternative Designations

Henry Draper Catalogue HD108396

SAO Catalogue SAO239960

Hipparcos Catalogue HIP60781

Durchmusterung Catalogue CP-58 4289

General Catalogue of Variable Stars BL Cru

Visibility from Your Location

Today's HR4739 rise, transit and set times from Cheyyur, India are the following (all times relative to the local timezone Asia/Kolkata):

Azimuth: 149.1° RISE 13:15

Max altitude: 18.5° TRANSIT 17:47

Azimuth: 210.9° SET 22:20

Name:	Cheyyur, India
Latitude:	12° 20' 58.2" N
Longitude:	80° 0' 10.8" E
Timezone:	Asia/Kolkata

Set Location

Other stars in Crux