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

HR4634

HR4634 is a sub-giant star in the constellation of Crux.

HR4634 visual magnitude is 6.08. Because of its reltive faintness, HR4634 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 HR4634:

6.08
Sub-giant
HR4634 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4634

HR4634 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 HR4634 are provided in the following table:

12h 11m 04s
-61° 16’ 39”
298.1°
1.22°
Crux

The simplified sky map below shows the position of HR4634 in the sky:

Finder chart HR4634 star
Simplified finder chart for HR4634.

Visibility of HR4634 from your location

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

HR4634 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR4634

The image below is a photograph of HR4634 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 HR4634 is -0.134 arcsec per year in Right Ascension and -0.018 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR4634 star
DSS2 image of HR4634. The red arrow shows the motion of HR4634 during the next 1000 years (-2.23 arcmin in Right Ascension and -0.30 arcmin in declination);

Distance of HR4634 from the Sun and relative movement

HR4634 is distant 289.52 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

88.81 pc
289.52 ly
-3 km/s
-0.134 arcsec/year
-0.018 arcsec/year

Spectral properties of HR4634

HR4634 belongs to spectral class F2 and has a luminosity class of IV corresponding to a sub-giant star.

1.34
F2IV
6934K

The red dot in the diagram below shows where HR4634 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR4634. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4634

SAO251778
SAO251778