HR4430

HR4430 is a variable giant star in the constellation of Ursa Major.

HR4430 visual magnitude is 6.35. Because of its reltive faintness, HR4430 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 HR4430:

Color of HR4430 ⬤

Magnitude of HR4430 6.35

Class Giant

VISIBILITY RIGHT NOW HR4430 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 46°.

Celestial coordinates and finder chart of HR4430

HR4430 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4430 are provided in the following table:

Right Ascension J2000 11h 30m 24s

Declination J2000 +46° 39’ 26”

Galactic Longitude 156.83°

Galactic Latitude 64.78°

Constellation Ursa Major

The simplified sky map below shows the position of HR4430 in the sky:

Simplified finder chart for HR4430.

Visibility of HR4430 from your location

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

HR4430 is circumpolar and transits at 23:29 UTC (altitude: 85.2°)

Digitized Sky Survey image of HR4430

The image below is a photograph of HR4430 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 HR4430 is 0.011 arcsec per year in Right Ascension and 0.032 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4430. The red arrow shows the motion of HR4430 during the next 10000 years (1.83 arcmin in Right Ascension and 5.33 arcmin in declination);

Distance of HR4430 from the Sun and relative movement

HR4430 is distant 984.89 light years from the Sun and it is moving far from the Sun at the speed of 27 kilometers per second.

Distance (parsec) 302.11 pc

Distance (light year) 984.89 ly

Heliocentric radial velocity 27 km/s

Proper Motion RA 0.011 arcsec/year

Proper Motion Dec 0.032 arcsec/year

Spectral properties of HR4430

HR4430 belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -1.05

Spectral Type K2III

Color Index (B-V) 1.27

Temperature of HR4430 4176K

The red dot in the diagram below shows where HR4430 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4430. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4430

Henry Draper Catalogue HD99967

SAO Catalogue SAO43784

Hipparcos Catalogue HIP56135

Durchmusterung Catalogue BD+47 1880

General Catalogue of Variable Stars EE UMa

How to support us

In Evidence

Other stars in Ursa Major