20047+6353 STF2640AC

Coord 2000	20047+6353		Discov num	STF2640		Comp	AC		Coord arcsec 2000	20 04 44.51 +63 53 24.4
Date first	1880		Date last	2003		Obs	9
Pa first	81		Pa last	81		P.A. Now (θ)	81°
Sep first	153.4		Sep last	153.0		Sep. Now (ρ)	153"
Mag pri	6.29		Mag sec	11.42		delta mag (ΔM)	5.13		Spectral class	A2II-III (white)
Pri motion ra	+003		Sec motion ra	+000
Pri motion dec	+038		Sec motion dec	+015
Notes

rPM=0.608 Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		18692	20 04 45 +63 53 24	STF 2640 AB	2019	78	14	5.7	6.29	9.54	3.25
Show		18692	20 04 45 +63 53 24	STF 2640 AC	2003	9	81	153.0	6.29	11.42	5.13		<===

Triple system
3 visible stars in this system

Precise pa	80.8		Precise sep	153.025		Constellation	Draco		SAO	18692
HIP	98872		Tycho2	4240-01067-1		Gaia DR2	2244320802453812992		HD	191174
HR	7695		BD	BD+63 1593		Distance	79.18		Distance ly	258.29

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20047+6353	STF2640	AC	1999	8	81	153.1	6.29	11.42		D	200444.51+635324.4
20047+6353	STF2640	AC	2003	9	81	153.0	6.29	11.42		D	200444.51+635324.4

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