π2 Ursae Majoris (pi2 Ursae Majoris)

π2 Ursae Majoris is a giant star in the constellation of Ursa Major.

π2 Ursae Majoris visual magnitude is 4.6. Because of its moderate brightness, π2 Ursae Majoris should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about π2 Ursae Majoris:

Color of π2 Ursae Majoris ⬤

Magnitude of π2 Ursae Majoris 4.6

Class Giant

VISIBILITY RIGHT NOW π2 Ursae Majoris (pi2 Ursae Majoris) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 44°.

Celestial coordinates and finder chart of π2 Ursae Majoris

π2 Ursae Majoris 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 π2 Ursae Majoris are provided in the following table:

Right Ascension J2000 08h 40m 12s

Declination J2000 +64° 19’ 40”

Galactic Longitude 151.36°

Galactic Latitude 35.96°

Constellation Ursa Major

The simplified sky map below shows the position of π2 Ursae Majoris in the sky:

Finder chart π2 Ursae Majoris (pi2 Ursae Majoris) star

Simplified finder chart for π2 Ursae Majoris (pi2 Ursae Majoris).

Visibility of π2 Ursae Majoris from your location

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

π2 Ursae Majoris (pi2 Ursae Majoris) is circumpolar and transits at 20:39 UTC (altitude: 77.2°)

Digitized Sky Survey image of π2 Ursae Majoris

The image below is a photograph of π2 Ursae Majoris 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 π2 Ursae Majoris is -0.06 arcsec per year in Right Ascension and 0.023 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of π2 Ursae Majoris (pi2 Ursae Majoris) star

DSS2 image of π2 Ursae Majoris. The red arrow shows the motion of π2 Ursae Majoris during the next 10000 years (-10.00 arcmin in Right Ascension and 3.83 arcmin in declination);

Distance of π2 Ursae Majoris from the Sun and relative movement

π2 Ursae Majoris is distant 252.32 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.

Distance (parsec) 77.40 pc

Distance (light year) 252.32 ly

Heliocentric radial velocity 15 km/s

Proper Motion RA -0.06 arcsec/year

Proper Motion Dec 0.023 arcsec/year

Spectral properties of π2 Ursae Majoris

π2 Ursae Majoris belongs to spectral class K1 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude 0.16

Spectral Type K1III

Color Index (B-V) 1.17

Temperature of π2 Ursae Majoris 4368K

The red dot in the diagram below shows where π2 Ursae Majoris is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of π2 Ursae Majoris. Attribution: Richard Powell / CC BY-SA

Alternative designations of π2 Ursae Majoris

Bayer designation π2 Ursae Majoris
(pi2 Ursae Majoris)

Flamsteed designation 4 Ursae Majoris

Henry Draper Catalogue HD73108

SAO Catalogue SAO14616

Hipparcos Catalogue HIP42527

Durchmusterung Catalogue BD+64 698

FK5 Catalogue 2677

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In Evidence

Other stars in Ursa Major