20117+0146 HJ  906AB

Coord 2000	20117+0146		Discov num	HJ  906		Comp	AB		Coord arcsec 2000	20 11 37.31 +01 45 06.7
Date first	1905		Date last	2015		Obs	15
Pa first	155		Pa last	156		P.A. Now (θ)	156°
Sep first	11.8		Sep last	13.3		Sep. Now (ρ)	13.3"
Mag pri	11.23		Mag sec	11.80		delta mag (ΔM)	0.57		Spectral class	B6V (blue-white)
Pri motion ra	-002		Sec motion ra	-003
Pri motion dec	+005		Sec motion dec	-010
Notes	U (Proper motion indicates non-physical)

Visually invisible, K-band or other infrared star rPM=1.44 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20117+0146	HJ 906	AB	1905	2015	15	156	13.3	11.23	11.80	0.57		<===
Show			20117+0146	HJ 906	AC	1827	2015	11	348	34.7	11.23	13.75	2.52
Show			20117+0146	ABH 132	AD	1987	2015	10	142	60.1	11.23	15.46	4.23
Show			20117+0146	ABH 132	AE	1987	2015	10	132	78.8	11.23	15.20	3.97
Show			20117+0146	ABH 132	AF	1987	2015	10	40	86.7	11.23	14.70	3.47
Show			20117+0146	ABH 132	AG	1987	2015	9	32	62.0	11.23	15.90	4.67
Show			20117+0146	ABH 132	AH	1987	2015	9	235	57.4	11.23	15.02	3.79

Octuple system
8 visible stars in this system

Precise pa	156.4		Precise sep	13.28		Constellation	Aquila		Tycho2	0495-02766-1
Gaia DR2	54722905600

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20117+0146	HJ 906	AB	2000	5	156	13.1	11.23	11.80	B6V	D	201137.31+014506.7
20117+0146	HJ 906	AB	2014	8	156	13.3	11.23	11.80	B6V	U	201137.31+014506.7
20117+0146	HJ 906	AB	2015	11	156	13.3	11.23	11.80	B6V	U	201137.31+014506.7

If you need more information about this double, apply for a data request form to the WDS.