Tania Borealis

Also known as λ UMa · HR 4033

Tania Borealis is a high proper motion star in the constellation Ursa Major, about 230 light-years from Earth.

Open it on the live sky map Plan Night Exploration

Tania Borealis: a sky-survey photograph of its field — Sky survey view (DSS2 colour, or a backup survey)

Facts

Type	High proper motion star (spectral type A1IV)
Constellation	Ursa Major
Position (J2000)	10h 17m 05s, +42° 54′
Distance	230 light-years (its light set off about 230 years ago)
Brightness	magnitude 3.45 (smaller is brighter; the faintest stars the eye sees are about 6)
Studied in	199 scientific papers (SIMBAD)

When and how to see it

Tania Borealis is highest in the sky at midnight in February. From India (about 20° N) it climbs to about 67° above the horizon; from 50° N, to about 83°. To see it you need the naked eye, even from a town.

Heights are worked out for India and for 50° N. Set your location in Settings to see them for where you are.

For tonight's best time from your own town, the darkness and the Moon, open it on the map and see its "Tonight from your location" card.

More in Ursa Major

Everything in Ursa Major · All 88 constellations · All sky objects

Data: SIMBAD (CDS, Strasbourg; the site's weekly copy) · Data sources & credits