HR4580

Altitude: 13.2° Azimuth: 106.2° Direction: East-South-East

HR4580 is a double sub-giant star in the constellation of Virgo.

HR4580 visual magnitude is 6.17. Because of its reltive faintness, HR4580 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 HR4580:

Color of HR4580 ⬤

Magnitude of HR4580 6.17

Class Sub-giant

VISIBILITY RIGHT NOW

HR4580 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 13.2°
Azimuth: 106.2°
Direction: East-South-East

Celestial coordinates and finder chart of HR4580

HR4580 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 HR4580 are provided in the following table:

Right Ascension J2000 11h 59m 03s

Declination J2000 +00° 31’ 50”

Galactic Longitude 275.47°

Galactic Latitude 60.58°

Constellation Virgo

The simplified sky map below shows the position of HR4580 in the sky:

Simplified finder chart for HR4580.

Visibility of HR4580 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 HR4580 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: 89.5° RISE 13:42

Max altitude: 39.1° TRANSIT 19:43

Azimuth: 270.5° SET 1:48

RIGHT NOW HR4580 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4580

The image below is a photograph of HR4580 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 HR4580 is -0.061 arcsec per year in Right Ascension and 0.027 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4580. The red arrow shows the motion of HR4580 during the next 10000 years (-10.17 arcmin in Right Ascension and 4.50 arcmin in declination);

Distance of HR4580 from the Sun and relative movement

HR4580 is distant 597.07 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

Distance (parsec) 183.15 pc

Distance (light year) 597.07 ly

Heliocentric radial velocity 12 km/s

Proper Motion RA -0.061 arcsec/year

Proper Motion Dec 0.027 arcsec/year

Spectral properties of HR4580

HR4580 belongs to spectral class K2 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude -0.14

Spectral Type K2IV

Color Index (B-V) 1.26

Temperature of HR4580 4194K

The red dot in the diagram below shows where HR4580 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4580. Attribution: Richard Powell / CC BY-SA

HR4580 star system properties

HR4580 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 HR4580 double sysyem:

Main star magnitude 6.17

Secondary star magnitude 13.87

Magnitude difference 7.7

Separation 14.2 arcsec

Alternative designations of HR4580

Henry Draper Catalogue HD104055

SAO Catalogue SAO119147

Hipparcos Catalogue HIP58445

Durchmusterung Catalogue BD+01 2636

Aitken Double Star Catalogue ADS8372

In Evidence

Other stars in Virgo