HR4122

Above the horizon. Rise: 14:10 | Tran: 19:29 | Set: 0:48

Alt: 6.11° Az: 249.35° Direction: West-South-West

HR4122 is a multiple giant star of spectral class K5 in the constellation of Sextans.

HR4122 visual magnitude is 6.2. Because of its faintness, HR4122 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 HR4122. The red arrow shows the motion of HR4122 during the next 10000 years (-6.50 arcmin in Right Ascension and 0.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 10h 32m 15s

Declination -07° 46’ 06”

Hour Angle 04h 39m 34s

Sidereal Time 15h 11m 49s

J2000

Right Ascension 10h 30m 58s

Declination -07° 38’ 15”

Galactic Coordinates

Galactic Longitude 253.49°

Galactic Latitude 41.37°

Finder Chart

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Finder chart for HR4122.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.2

Class Giant

Absolute magnitude -0.66

Spectral Type K5III

Color Index (B-V) 1.38

Temperature 3983K

The red dot in the diagram below shows where HR4122 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4122. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4122 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR4122 double sysyem:

Main star magnitude 6.2

Secondary star magnitude 8.5

Magnitude difference 2.3

Separation 2.8 arcsec

Distance, Radial Speed, Proper Motion

HR4122 is distant 767.06 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

Distance (parsec) 235.29

Distance (light year) 767.06

Radial Speed 7 km/s

Proper Motion RA -0.039 arcsec/y

Proper Motion Dec 0.005"/y

Alternative Designations

Henry Draper Catalogue HD91106

SAO Catalogue SAO137614

Hipparcos Catalogue HIP51490

Durchmusterung Catalogue BD-06 3173

Aitken Double Star Catalogue ADS7808

Visibility from Your Location

Today's HR4122 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 97.8° RISE 14:10

Max altitude: 30.8° TRANSIT 19:29

Azimuth: 262.2° SET 0:48

Set Location

Other stars in Sextans