Your guide to the Solar System and the night sky
Please donate now to help keep TheSkyLive ads-free. This site cannot run without your voluntary donations.
🌎  Greenwich, United Kingdom [change]

HR4658

HR4658 is a hypergiant star in the constellation of Centaurus.

HR4658 visual magnitude is 6.26. Because of its reltive faintness, HR4658 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 HR4658:

6.26
Hypergiant
HR4658 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4658

HR4658 is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4658 are provided in the following table:

12h 15m 30s
-41° 54’ 47”
295.81°
20.46°
Centaurus

The simplified sky map below shows the position of HR4658 in the sky:

Finder chart HR4658 star
Simplified finder chart for HR4658.

Visibility of HR4658 from your location

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

HR4658 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR4658

The image below is a photograph of HR4658 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 HR4658 is -0.331 arcsec per year in Right Ascension and -0.175 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR4658 star
DSS2 image of HR4658. The red arrow shows the motion of HR4658 during the next 1000 years (-5.52 arcmin in Right Ascension and -2.92 arcmin in declination);

Distance of HR4658 from the Sun and relative movement

HR4658 is distant 347.18 light years from the Sun and it is moving far from the Sun at the speed of 25 kilometers per second.

106.50 pc
347.18 ly
25 km/s
-0.331 arcsec/year
-0.175 arcsec/year

Spectral properties of HR4658

HR4658 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

1.12
K0III
4719K

The red dot in the diagram below shows where HR4658 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4658. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4658

SAO223309
SAO223309