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

HR4637

HR4637 is a giant star in the constellation of Centaurus.

HR4637 visual magnitude is 6.23. Because of its reltive faintness, HR4637 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 HR4637:

6.23
Giant
HR4637 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4637

HR4637 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 HR4637 are provided in the following table:

12h 11m 31s
-51° 21’ 33”
296.61°
11.02°
Centaurus

The simplified sky map below shows the position of HR4637 in the sky:

Finder chart HR4637 star
Simplified finder chart for HR4637.

Visibility of HR4637 from your location

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

HR4637 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR4637

The image below is a photograph of HR4637 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 HR4637 is -0.208 arcsec per year in Right Ascension and -0.067 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR4637 star
DSS2 image of HR4637. The red arrow shows the motion of HR4637 during the next 1000 years (-3.47 arcmin in Right Ascension and -1.12 arcmin in declination);

Distance of HR4637 from the Sun and relative movement

HR4637 is distant 174.05 light years from the Sun and it is moving far from the Sun at the speed of 26 kilometers per second.

53.39 pc
174.05 ly
26 km/s
-0.208 arcsec/year
-0.067 arcsec/year

Spectral properties of HR4637

HR4637 belongs to spectral class G6 and has a luminosity class of III corresponding to a giant star.

2.59
G6III
5221K

The red dot in the diagram below shows where HR4637 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4637. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4637

SAO239735
SAO239735