HR4131

Altitude: 21.9° Azimuth: 332.5° Direction: North-North-West

HR4131 is a main-sequence star in the constellation of Ursa Major.

HR4131 visual magnitude is 6.45. Because of its reltive faintness, HR4131 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 HR4131:

Color of HR4131 ⬤

Magnitude of HR4131 6.45

Class Main-sequence

VISIBILITY RIGHT NOW

HR4131 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 21.9°
Azimuth: 332.5°
Direction: North-North-West

Celestial coordinates and finder chart of HR4131

HR4131 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 HR4131 are provided in the following table:

Right Ascension J2000 10h 33m 43s

Declination J2000 +53° 29’ 51”

Galactic Longitude 157.3°

Galactic Latitude 53.44°

Constellation Ursa Major

The simplified sky map below shows the position of HR4131 in the sky:

Simplified finder chart for HR4131.

Visibility of HR4131 from your location

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

HR4131 is circumpolar and transits at 10:17 UTC (altitude: 88.0°)

Digitized Sky Survey image of HR4131

The image below is a photograph of HR4131 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 HR4131 is -0.047 arcsec per year in Right Ascension and -0.025 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4131. The red arrow shows the motion of HR4131 during the next 10000 years (-7.83 arcmin in Right Ascension and -4.17 arcmin in declination);

Distance of HR4131 from the Sun and relative movement

HR4131 is distant 735.89 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

Distance (parsec) 225.73 pc

Distance (light year) 735.89 ly

Heliocentric radial velocity 2 km/s

Proper Motion RA -0.047 arcsec/year

Proper Motion Dec -0.025 arcsec/year

Spectral properties of HR4131

HR4131 belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -0.32

Spectral Type A1V

Color Index (B-V)

Temperature of HR4131 10125K

The red dot in the diagram below shows where HR4131 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4131. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4131

Henry Draper Catalogue HD91311

SAO Catalogue SAO27682

Hipparcos Catalogue HIP51697

Durchmusterung Catalogue BD+54 1381

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In Evidence

Other stars in Ursa Major