HR4610

Altitude: 77.5° Azimuth: 340.1° Direction: North-North-West

HR4610 is a variable and double giant star in the constellation of Ursa Major.

HR4610 visual magnitude is 6.13. Because of its reltive faintness, HR4610 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 HR4610:

Color of HR4610 ⬤

Magnitude of HR4610 6.13

Class Giant

VISIBILITY RIGHT NOW

HR4610 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 77.5°
Azimuth: 340.1°
Direction: North-North-West

Celestial coordinates and finder chart of HR4610

HR4610 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4610 are provided in the following table:

Right Ascension J2000 12h 05m 39s

Declination J2000 +62° 55’ 59”

Galactic Longitude 131.64°

Galactic Latitude 53.41°

Constellation Ursa Major

The simplified sky map below shows the position of HR4610 in the sky:

Simplified finder chart for HR4610.

Visibility of HR4610 from your location

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

HR4610 is circumpolar and transits at 07:33 UTC (altitude: 78.5°)

Digitized Sky Survey image of HR4610

The image below is a photograph of HR4610 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 HR4610 is -0.05 arcsec per year in Right Ascension and -0.075 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4610. The red arrow shows the motion of HR4610 during the next 10000 years (-8.33 arcmin in Right Ascension and -12.50 arcmin in declination);

Distance of HR4610 from the Sun and relative movement

HR4610 is distant 373.42 light years from the Sun and it is moving towards the Sun at the speed of 26 kilometers per second.

Distance (parsec) 114.55 pc

Distance (light year) 373.42 ly

Heliocentric radial velocity -26 km/s

Proper Motion RA -0.05 arcsec/year

Proper Motion Dec -0.075 arcsec/year

Spectral properties of HR4610

HR4610 belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude 0.84

Spectral Type K2III

Color Index (B-V) 1.17

Temperature of HR4610 4368K

The red dot in the diagram below shows where HR4610 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4610. Attribution: Richard Powell / CC BY-SA

HR4610 star system properties

HR4610 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR4610 double sysyem:

Main star magnitude 6.13

Secondary star magnitude 11.53

Magnitude difference 5.4

Separation 2.3 arcsec

Alternative designations of HR4610

Henry Draper Catalogue HD105043

SAO Catalogue SAO15710

Hipparcos Catalogue HIP58989

Durchmusterung Catalogue BD+63 999

General Catalogue of Variable Stars 5452

Aitken Double Star Catalogue ADS8417

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In Evidence

Other stars in Ursa Major