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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:52  
clear_day Transit: 11:51  
SunsetSet: 15:49 south
sunny DaytimeWhat's Visible Now?
All Constellations » Puppis » 


Altitude: -39.9°   Azimuth: 284.4°   Direction: West-North-West

HR3023 is a variable sub-giant star in the constellation of Puppis.

HR3023 visual magnitude is 5.9. Because of its reltive faintness, HR3023 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 HR3023:


HR3023 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -39.9°
Azimuth: 284.4°
Direction: West-North-West

Celestial coordinates and finder chart of HR3023

HR3023 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 HR3023 are provided in the following table:

07h 47m 12s
-22° 31’ 10”

The simplified sky map below shows the position of HR3023 in the sky:

Finder chart HR3023 star
Simplified finder chart for HR3023.

Visibility of HR3023 from your location

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

Today's HR3023 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 112.5°
Max altitude: 16.0°
Azimuth: 247.5°

Digitized Sky Survey image of HR3023

The image below is a photograph of HR3023 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 HR3023 is -0.013 arcsec per year in Right Ascension and 0.007 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3023 star
DSS2 image of HR3023. The red arrow shows the motion of HR3023 during the next 10000 years (-2.17 arcmin in Right Ascension and 1.17 arcmin in declination);

Distance of HR3023 from the Sun and relative movement

HR3023 is distant 987.88 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

303.03 pc
987.88 ly
7 km/s
-0.013 arcsec/year
0.007 arcsec/year

Spectral properties of HR3023

HR3023 belongs to spectral class B2 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR3023 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3023. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3023