20136+0717 TOB 308AB

Coord 2000	20136+0717		Discov num	TOB 308		Comp	AB		Coord arcsec 2000	20 13 37.30 +07 16 53.4
Date first	1919		Date last	2016		Obs	8
Pa first	52		Pa last	50		P.A. Now (θ)	50°
Sep first	19.3		Sep last	18.9		Sep. Now (ρ)	18.9"
Mag pri	10.80		Mag sec	12.30		delta mag (ΔM)	1.5		Spectral class
Pri motion ra	-083		Sec motion ra	-057
Pri motion dec	-044		Sec motion dec	-051
Notes

rPM=0.287 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 13 37 +07 16 53	TOB 308 AB	2016	8	50	18.9	10.80	12.30	1.50		<===
Show			20 13 38 +07 17 05	TOB 308 BC	2015	5	63	15.6	12.30	12.40	0.10

Triple system
3 visible stars in this system

Precise pa	49.8		Precise sep	18.906		Constellation	Aquila		Tycho2	0507-01976-1
Gaia DR2	4250476215115519744

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20136+0717	TOB 308	AB	2000	3	50	18.9	10.80	12.30		D	201337.30+071653.4
20136+0717	TOB 308	AB	2015	5	50	18.9	10.80	12.30			201337.30+071653.4

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