18335+3934 SLE 208AB

Coord 2000	18335+3934		Discov num	SLE 208		Comp	AB		Coord arcsec 2000	18 33 29.23 +39 34 17.0
Date first	1982		Date last	2015		Obs	9
Pa first	74		Pa last	81		P.A. Now (θ)	81°
Sep first	13.1		Sep last	13.2		Sep. Now (ρ)	13.2"
Mag pri	9.10		Mag sec	12.00		delta mag (ΔM)	2.9		Spectral class	G5 (yellow)
Pri motion ra	-001		Sec motion ra	+035
Pri motion dec	-002		Sec motion dec	-035
Notes

rPM=0.987 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		67108	18 33 29 +39 34 17	SLE 208 AB	2015	9	81	13.2	9.10	12.00	2.90		<===
Show		67108	18 33 29 +39 34 17	SLE 208 A,CD	2013	9	3	63.5	8.69	12.11	3.42
Show		67108	18 33 30 +39 35 20	COU 1606 CD	2012	3	130	1.9	12.30	13.00	0.70

Quadruple system
5 visible stars in this system

Precise pa	80.8		Precise sep	13.187		Constellation	Lyra		SAO	67108
HIP	90980		Tycho2	3109-02356-1		Gaia DR2	2110043460307197696		HD	171518
BD	BD+39 3455		Distance	250.63		Distance ly	817.56

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18335+3934	SLE 208	AB	2006	4	80	13.0	9.10	12.00	G5	D	183329.23+393417.0
18335+3934	SLE 208	AB	2013	6	82	12.8	9.10	12.00	G5		183329.23+393417.0
18335+3934	SLE 208	AB	2015	7	81	13.1	9.10	12.00	G5		183329.23+393417.0

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