20136+1537 CHE 215AB

Coord 2000	20136+1537		Discov num	CHE 215		Comp	AB		Coord arcsec 2000	20 13 35.15 +15 36 42.7
Date first	1910		Date last	2017		Obs	11
Pa first	95		Pa last	95		P.A. Now (θ)	95°
Sep first	30.9		Sep last	32.4		Sep. Now (ρ)	32.4"
Mag pri	11.82		Mag sec	13.79		delta mag (ΔM)	1.97		Spectral class
Pri motion ra	-015		Sec motion ra	+010
Pri motion dec	+004		Sec motion dec	-012
Notes	N (See Notes)

rPM=1.9 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 13 35 +15 36 43	CHE 215 AB	2017	11	95	32.4	11.82	13.79	1.97		<===
Show			20 13 37 +15 36 40	BKO 535 BC	2015	8	325	5.5	12.60	12.70	0.10

Triple system
3 visible stars in this system

Precise pa	94.6		Precise sep	32.4		Constellation	Aquila		Tycho2	1618-01383-1
Gaia DR2	1808518923435724672

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20136+1537	CHE 215	AB	2008	3	95	32.8	9.94	10.39			201335.16+153642.7
20136+1537	CHE 215	AB	2017	7	95	32.4	11.82	13.79		N	201335.15+153642.7

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