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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
SunriseRise: 6:44  
clear_day Transit: 12:10  
SunsetSet: 17:38
sunny DaytimeWhat's Visible Now?
All Constellations » Virgo » 


Altitude: -45.1°   Azimuth: 31.3°   Direction: North-North-East

HR4657 is a double main-sequence star in the constellation of Virgo.

HR4657 visual magnitude is 6.11. Because of its reltive faintness, HR4657 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR4657 is 0.034 arcsec per year in Right Ascension and -1.017 arcsec per year in Declination and the associated displacement for the next 100 years is represented with the red arrow.

Image of HR4657 star
DSS2 image of HR4657. The red arrow shows the motion of HR4657 during the next 100 years (0.06 arcmin in Right Ascension and -1.70 arcmin in declination);

Key facts about HR4657


HR4657 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -45.1°
Azimuth: 31.3°
Direction: North-North-East

Celestial coordinates and finder chart of HR4657

HR4657 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 HR4657 are provided in the following table:

12h 15m 10s
-10° 18’ 45”

The simplified sky map below shows the position of HR4657 in the sky:

Finder chart HR4657 star
Simplified finder chart for HR4657.

Visibility of HR4657 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 HR4657 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: 100.3°
Max altitude: 28.2°
Azimuth: 259.7°

Distance of HR4657 from the Sun and relative movement

HR4657 is distant 73.52 light years from the Sun and it is moving far from the Sun at the speed of 8 kilometers per second.

22.55 pc
73.52 ly
8 km/s
0.034 arcsec/year
-1.017 arcsec/year

Spectral properties of HR4657

HR4657 belongs to spectral class F5 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR4657 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4657. Attribution: Richard Powell / CC BY-SA

HR4657 star system properties

HR4657 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR4657 double sysyem:

73.3 arcsec

Alternative designations of HR4657