HR4657

Below the horizon. Rise: 6:57 | Tran: 12:02 | Set: 17:06

Alt: -34.86° Az: 301.34° Direction: West-North-West

HR4657 is a double main-sequence star of spectral class F5 in the constellation of Virgo.

HR4657 visual magnitude is 6.11. Because of its faintness, HR4657 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

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);

Celestial Coordinates

Apparent

Right Ascension 12h 16m 27s

Declination -10° 27’ 00”

Hour Angle 08h 58m 10s

Sideral Time 21h 14m 38s

J2000

Right Ascension 12h 15m 10s

Declination -10° 18’ 45”

Galactic Coordinates

Galactic Longitude 288.49°

Galactic Latitude 51.55°

Finder Chart

Simplified finder chart for HR4657.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.11

Class Main-sequence

Absolute magnitude 4.34

Spectral Type F5V

Color Index (B-V) 0.46

Temperature 6576K

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

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

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:

Main star magnitude 6.11

Secondary star magnitude 12.91

Magnitude difference 6.8

Separation 73.3 arcsec

Distance, Radial Speed, Proper Motion

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.

Distance (parsec) 22.55

Distance (light year) 73.52

Radial Speed 8 km/s

Proper Motion RA 0.034 arcsec/y

Proper Motion Dec -1.017"/y

Alternative Designations

Henry Draper Catalogue HD106516

SAO Catalogue SAO157168

Hipparcos Catalogue HIP59750

Durchmusterung Catalogue BD-09 3468

Visibility from Your Location

Today's HR4657 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 100.5° RISE 6:57

Max altitude: 28.1° TRANSIT 12:02

Azimuth: 259.5° SET 17:06

Set Location

Other stars in Virgo