20186-0146 BAL 258AB

Coord 2000	20186-0146		Discov num	BAL 258		Comp	AB		Coord arcsec 2000	20 18 36.12 -01 46 11.7
Date first	1896		Date last	2015		Obs	7
Pa first	49		Pa last	46		P.A. Now (θ)	46°
Sep first	6.7		Sep last	5.8		Sep. Now (ρ)	5.8"
Mag pri	11.67		Mag sec	12.40		delta mag (ΔM)	0.73		Spectral class
Pri motion ra	-003		Sec motion ra	+019
Pri motion dec	-003		Sec motion dec	-003
Notes

rPM=1.144 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 18 36 -01 46 12	BAL 258 AB	2015	7	46	5.8	11.67	12.40	0.73		<===
Show			20 18 36 -01 46 12	J 1702 AC	2015	7	289	11.7	11.67	13.30	1.63

Triple system
3 visible stars in this system

Precise pa	45.8		Precise sep	5.832		Constellation	Aquila		Tycho2	5162-00207-1
Gaia DR2	4223204508517286912

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20186-0146	BAL 258	AB	1941	3	50	4.0	12.79	12.90			201836.13-014611.3
20186-0146	BAL 258	AB	2000	4	46	5.9	12.79	12.90			201836.13-014611.3
20186-0146	BAL 258	AB	2015	7	46	5.8	11.67	12.40			201836.12-014611.7

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