20014+0657 STF2612AB

Coord 2000	20014+0657		Discov num	STF2612		Comp	AB		Coord arcsec 2000	20 01 23.22 +06 56 49.7
Date first	1827		Date last	2016		Obs	40
Pa first	53		Pa last	54		P.A. Now (θ)	54°
Sep first	36.6		Sep last	42.5		Sep. Now (ρ)	42.5"
Mag pri	8.29		Mag sec	9.87		delta mag (ΔM)	1.58		Spectral class	F5 (yellow-white)
Pri motion ra	+008		Sec motion ra	+038
Pri motion dec	-023		Sec motion dec	-006
Notes	N U (See Notes, Proper motion indicates non-physical)

Visually invisible, K-band or other infrared star rPM=0.896 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20014+0657	STF2612	AB	1827	2016	40	54	42.5	8.29	9.87	1.58		<===
Show			20014+0657	STF2612	BC	2000	2016	5	41	26.9	9.90	12.30	2.40
Show			20014+0657	J 2568	CD	1943	2015	5	310	3.6	12.30	13.30	1.00

Quadruple system
4 visible stars in this system

Precise pa	54		Precise sep	42.52		Constellation	Aquila		Tycho2	0506-01557-1
Gaia DR2	03813478528		HD	189757

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20014+0657	STF2612	AB	2008	28	54	42.6	8.29	9.87	F5	NLD	200123.22+065649.7
20014+0657	STF2612	AB	2010	29	54	42.3	8.29	9.87	F5	NLD	200123.22+065649.7
20014+0657	STF2612	AB	2013	32	55	42.3	8.29	9.87	F5	NL	200123.22+065649.7
20014+0657	STF2612	AB	2016	33	54	42.5	8.29	9.87	F5	NL	200123.22+065649.7

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