08458+4853 SDK   2AB

Coord 2000	08458+4853		Discov num	SDK   2		Comp	AB		Coord arcsec 2000	08 45 46.93 +48 52 43.6
Date first	1953		Date last	2016		Obs	10
Pa first	79		Pa last	84		P.A. Now (θ)	84°
Sep first	22.0		Sep last	20.2		Sep. Now (ρ)	20.2"
Mag pri	7.50		Mag sec	15.00		delta mag (ΔM)	7.5		Spectral class	A2V+DA1.3 (white/white dwarf)
Pri motion ra	-002		Sec motion ra	-001
Pri motion dec	+008		Sec motion dec	+008
Notes	T (Parallax indicates physical)

rPM=0.121 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		42532	08 45 47 +48 52 44	SDK 2 AB	2016	10	84	20.2	7.50	15.00	7.50		<===
Show		42532	08 45 47 +48 52 44	SKF 2821 AC	2015	3	151	4.3	7.50	15.00	7.50

Triple system
3 visible stars in this system

Precise pa	83.9		Precise sep	20.202		Constellation	Ursa Major		SAO	42532
HIP	42994		Tycho2	3420-01971-1		Gaia DR2	1015082573717077504		HD	74389
BD	BD+49 1766		Distance	111.48		Distance ly	363.65

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
08458+4853	SDK 2	AB	2013	8	84	20.2	7.50	15.00	A2V+DA		084546.93+485243.6
08458+4853	SDK 2	AB	2015	9	84	20.2	7.50	15.00	A2V+DA1.3	T	084546.93+485243.6

If you need more information about this double, apply for a data request form to the WDS.