20129+1548 CHE 201AB

Coord 2000	20129+1548		Discov num	CHE 201		Comp	AB		Coord arcsec 2000	20 12 51.31 +15 47 50.7
Date first	1910		Date last	2018		Obs	10
Pa first	321		Pa last	322		P.A. Now (θ)	322°
Sep first	29.2		Sep last	27.8		Sep. Now (ρ)	27.8"
Mag pri	11.11		Mag sec	14.03		delta mag (ΔM)	2.92		Spectral class
Pri motion ra	+001		Sec motion ra	+005
Pri motion dec	-014		Sec motion dec	+018
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=1.726 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20129+1548	CHE 201	AB	1910	2018	10	322	27.8	11.11	14.03	2.92		<===
Show			20129+1548	CHE 201	AC	1991	2018	10	63	51.2	11.11	10.56	0.55
Show			20129+1548	CHE 201	AE	1982	2018	5	270	27.9	11.11	12.00	0.89
Show			20129+1548	CHE 202	CD	1910	2018	14	347	11.0	10.56	13.40	2.84
Show			20129+1548	CHE 202	EF	1998	2018	5	35	4.9	12.00	12.50	0.50

Sextuple system
6 visible stars in this system

Precise pa	321.6		Precise sep	27.8		Constellation	Aquila		Tycho2	1618-00829-1
HD	355090

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20129+1548	CHE 201	AB	1998	3	269	31.4	11.11	12.84		D	201251.31+154750.8
20129+1548	CHE 201	AB	2008	4	322	28.0	11.11	12.84		D	201251.31+154750.8
20129+1548	CHE 201	AB	2018	5	322	27.8	11.11	14.03		N	201251.31+154750.7

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