86 Ursae Majoris, a blue main-sequence star in Ursa Major

86 Ursae Majoris (HIP 67848)

86 Ursae Majoris is a blue main-sequence star in the constellation Ursa Major. At 478 light years away, it shines at an apparent visual magnitude of 5.70. It is moving through the Galaxy at a speed of 26 km/s relative to the Sun. Its projected Galactic orbit carries it between 20,700 and 24,200 light years from the center of the Galaxy. It will come closest to the Sun 3.4 million years from now when it will brighten to magnitude 5.18 from a distance of 377 light years.

Sky position: RA 13h 53.9m, Dec +53° 43.8'

Common designations: 86 Ursae Majoris, HIP 67848, HD 121409, HR 5238

Galactic Orbit of 86 Ursae Majoris
(compared to the Sun)

E

ccentricity: 7.8% vs. 16.0%

Angle φ : 172.4°vs. 26.0°

Semi-major axis : 6,888 pc vs. 8,686 pc

Semi-minor axis: 6,867 pc vs. 8,574 pc

Focus-to-center

: 536 pcvs. 1,388 pc

Semilatus rectum : 6,847 pc vs. 8,464 pc

Perigalacticon: 6,352 pc vs. 7,297 pc

Apogalacticon

: 7,424 pcvs. 10,074 pc
  Some Tabulated XHIP Data for 86 Ursae Majoris
(see also: SIMBAD)

Astrometry
2007A&A...474..653V

Position	Proper Motion
Right Ascension:	208.46267598° ±0.17 mas	-28.64 ±0.21 mas/yr.
Declination:	53.72869224° ±0.19 mas	-7.08 ±0.21 mas/yr.
Galactic Longitude:	103.76131959°	21.40 mas/yr.
Galactic Latitude:	61.01505165°	20.30 mas/yr.

Parallax: 6.81 ± 0.22 mas

Spectrography

Spectral Type: B9.5Vnp 1995ApJS...99..135A.

Radial Velocity: -16.00 ±3.70 km/s [B rating] 2007AN....328..889K.

Iron Abundance [Fe/H]: n/a

Photometry
 

band	magnitude	Abs. Mag.
U
B	5.67	-0.16
V	5.70	-0.13
R
I	5.71	-0.13
J	5.65	-0.18
H	5.71	-0.12
K	5.68	-0.15

B-V: -0.03 V-I: -0.01

Derivations

Heliocentric distance: 146.66 pc (3.2% margin of error)

Galactocentric distance: 7,419 pc

Transverse velocity: 20.5 km/s

3D heliocentric position and motion:

toward:	Galactic center	Galactic rotation	North Galactic Pole
Position ( X, Y, Z)	-16.9 pc	69.0 pc	128.3 pc
Velocity (U, V, W)	-9.7 km/s	-23.1 km/s	-7.2 km/s