HR3881

HR3881 is a hypergiant star in the constellation of Ursa Major.

HR3881 visual magnitude is 5.09. Because of its reltive faintness, HR3881 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 HR3881:

Color of HR3881 ⬤

Magnitude of HR3881 5.09

Class Hypergiant

VISIBILITY RIGHT NOW HR3881 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 8°.

Celestial coordinates and finder chart of HR3881

HR3881 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 HR3881 are provided in the following table:

Right Ascension J2000 09h 48m 35s

Declination J2000 +46° 01’ 15”

Galactic Longitude 172.78°

Galactic Latitude 49.43°

Constellation Ursa Major

The simplified sky map below shows the position of HR3881 in the sky:

Simplified finder chart for HR3881.

Visibility of HR3881 from your location

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

HR3881 is circumpolar and transits at 21:48 UTC (altitude: 84.5°)

Digitized Sky Survey image of HR3881

The image below is a photograph of HR3881 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 HR3881 is 0.224 arcsec per year in Right Ascension and -0.092 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of HR3881. The red arrow shows the motion of HR3881 during the next 1000 years (3.73 arcmin in Right Ascension and -1.53 arcmin in declination);

Distance of HR3881 from the Sun and relative movement

HR3881 is distant 60.08 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.

Distance (parsec) 18.43 pc

Distance (light year) 60.08 ly

Heliocentric radial velocity 5 km/s

Proper Motion RA 0.224 arcsec/year

Proper Motion Dec -0.092 arcsec/year

Spectral properties of HR3881

HR3881 belongs to spectral class G0 and has a luminosity class of V corresponding to a hypergiant star.

Absolute magnitude 3.76

Spectral Type G0V

Color Index (B-V) 0.62

Temperature of HR3881 5890K

The red dot in the diagram below shows where HR3881 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3881. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3881

Henry Draper Catalogue HD84737

SAO Catalogue SAO43046

Hipparcos Catalogue HIP48113

Durchmusterung Catalogue BD+46 1551

Gliese Catalogue Gl 368

FK5 Catalogue 1255

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Other stars in Ursa Major