Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]


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

HR1023 visual magnitude is 6.38. Because of its reltive faintness, HR1023 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR1023:

HR1023 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 34°.

Celestial coordinates and finder chart of HR1023

HR1023 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR1023 are provided in the following table:

03h 23m 39s
+04° 52’ 54”

The simplified sky map below shows the position of HR1023 in the sky:

Finder chart HR1023 star
Simplified finder chart for HR1023.

Visibility of HR1023 from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

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

Azimuth: 85.1°
Max altitude: 43.4°
Azimuth: 274.9°
HR1023 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR1023

The image below is a photograph of HR1023 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR1023 is 0.006 arcsec per year in Right Ascension and -0.008 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR1023 star
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);

Distance of HR1023 from the Sun and relative movement

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.

342.47 pc
1,116.44 ly
3 km/s
0.006 arcsec/year
-0.008 arcsec/year

Spectral properties of HR1023

HR1023 belongs to spectral class G5 and has a luminosity class of III corresponding to a giant star.


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

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

HR1023 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:

0.9 arcsec

Alternative designations of HR1023