HR1023

Above the horizon. Rise: 6:28 | Tran: 12:51 | Set: 19:14

Alt: 38.30° Az: 144.59° Direction: South-East

HR1023 is a variable and double giant star of spectral class G5 in the constellation of Cetus.

HR1023 visual magnitude is 6.38. Because of its faintness, HR1023 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 HR1023. The red arrow shows the motion of HR1023 during the next 100000 years (10.00 arcmin in Right Ascension and -13.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 03h 24m 59s

Declination +04° 58’ 14”

Hour Angle 22h 11m 21s

Sidereal Time 01h 36m 21s

J2000

Right Ascension 03h 23m 39s

Declination +04° 52’ 54”

Galactic Coordinates

Galactic Longitude 177.72°

Galactic Latitude -41.26°

Finder Chart

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Finder chart for HR1023.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.38

Class Giant

Absolute magnitude -1.29

Spectral Type G5III

Color Index (B-V) 0.86

Temperature 5106K

The red dot in the diagram below shows where HR1023 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1023. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR1023 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR1023 double sysyem:

Main star magnitude 6.38

Secondary star magnitude 9.58

Magnitude difference 3.2

Separation 0.9 arcsec

Distance, Radial Speed, Proper Motion

HR1023 is distant 1,116.44 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

Distance (parsec) 342.47

Distance (light year) 1,116.44

Radial Speed 3 km/s

Proper Motion RA 0.006 arcsec/y

Proper Motion Dec -0.008"/y

Alternative Designations

Henry Draper Catalogue HD21018

SAO Catalogue SAO111161

Hipparcos Catalogue HIP15807

Durchmusterung Catalogue BD+04 532

General Catalogue of Variable Stars Var?

Aitken Double Star Catalogue ADS2509

Visibility from Your Location

Today's HR1023 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 85.0° RISE 6:28

Max altitude: 43.5° TRANSIT 12:51

Azimuth: 275.0° SET 19:14

Set Location

Other stars in Cetus