20060+3545 SEI 858AB

Coord 2000	20060+3545		Discov num	SEI 858		Comp	AB		Coord arcsec 2000	20 05 56.71 +35 45 21.4
Date first	1895		Date last	2015		Obs	14
Pa first	29		Pa last	28		P.A. Now (θ)	28°
Sep first	19.8		Sep last	19.8		Sep. Now (ρ)	19.8"
Mag pri	11.75		Mag sec	11.90		delta mag (ΔM)	0.15		Spectral class
Pri motion ra	-005		Sec motion ra	-004
Pri motion dec	-008		Sec motion dec	-007
Notes

rPM=0.15 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		69404	20060+3545	SEI 858	AB	1895	2015	14	28	19.8	11.75	11.90	0.15		<===
Show		69404	20060+3545	SEI 857	AC	1895	2015	13	323	27.6	11.75	12.90	1.15

Triple system
3 visible stars in this system

Precise pa	28.1		Precise sep	19.812		Constellation	Cygnus		SAO	69404
Tycho2	2683-03048-1		Gaia DR2	41181622144

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20060+3545	SEI 858	AB	2002	7	28	19.8	9.70	9.80		D	200556.74+354521.9
20060+3545	SEI 858	AB	2012	9	29	19.8	11.75	11.90			200556.71+354521.4
20060+3545	SEI 858	AB	2015	10	28	19.8	11.75	11.90			200556.71+354521.4

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