HR1721

Above the horizon. Rise: 12:44 | Tran: 14:21 | Set: 15:58

Alt: 2.53° Az: 177.67° Direction: South

HR1721 is a giant star of spectral class G8 in the constellation of Columba.

HR1721 visual magnitude is 5.76. Because of its faintness, HR1721 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 HR1721. The red arrow shows the motion of HR1721 during the next 10000 years (2.67 arcmin in Right Ascension and 0.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 05h 15m 22s

Declination -35° 56’ 58”

Hour Angle 23h 48m 30s

Sidereal Time 05h 03m 52s

J2000

Right Ascension 05h 14m 28s

Declination -35° 58’ 37”

Galactic Coordinates

Galactic Longitude 239.65°

Galactic Latitude -34.3°

Finder Chart

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Finder chart for HR1721.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.76

Class Giant

Absolute magnitude -0.10

Spectral Type G8III

Color Index (B-V) 1.01

Temperature 4719K

The red dot in the diagram below shows where HR1721 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1721. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR1721 is distant 484.40 light years from the Sun and it is moving far from the Sun at the speed of 13 kilometers per second.

Distance (parsec) 148.59

Distance (light year) 484.40

Radial Speed 13 km/s

Proper Motion RA 0.016 arcsec/y

Proper Motion Dec 0.004"/y

Alternative Designations

Henry Draper Catalogue HD34266

SAO Catalogue SAO195683

Hipparcos Catalogue HIP24426

Durchmusterung Catalogue CD-36 2127

Visibility from Your Location

Today's HR1721 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 125.9° RISE 12:44

Max altitude: 2.6° TRANSIT 14:21

Azimuth: 234.1° SET 15:58

Set Location

Other stars in Columba