19508+0852 DAL  27AD

Coord 2000	19508+0852		Discov num	DAL  27		Comp	AD		Coord arcsec 2000	19 50 46.99 +08 52 05.9
Date first	2005		Date last	2015		Obs	11
Pa first	96		Pa last	105		P.A. Now (θ)	105°
Sep first	32.1		Sep last	26.8		Sep. Now (ρ)	26.8"
Mag pri	0.95		Mag sec	11.90		delta mag (ΔM)	10.95		Spectral class	A7V (white)
Pri motion ra	+537		Sec motion ra
Pri motion dec	+386		Sec motion dec
Notes	N U (See Notes, Proper motion indicates non-physical)

This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	Altair	125122	19508+0852	STFB 10	AB	1781	2015	42	286	195.8	0.95	9.82	8.87
Show		125122	19508+0852	STFB 10	AC	1905	2015	15	110	186.4	0.95	10.30	9.35
Show		125122	19508+0852	DAL 27	AD	2005	2015	11	105	26.8	0.95	11.90	10.95		<===
Show		125122	19508+0852	SMR 5	AE	2000	2015	8	354	151.3	0.95	11.00	10.05
Show		125122	19508+0852	SMR 5	AF	2000	2015	7	48	292.4	0.95	10.30	9.35
Show		125122	19508+0852	GMC 5	AG	2000	2012	3	121	185.1	0.95	13.00	12.05

Septuple system
7 visible stars in this system

Precise pa	104.9		Precise sep	26.83		Constellation	Aquila		SAO	125122
HIP	97649		HD	187642		HR	7557		GC	27470
GL	Gl 768		BD	BD+08 4236		Bayer	Alpha Aquilae		Bayer name	Alp Aql
Flamsteed	53 Aquilae		Flamsteed name	53 Aql		Distance	5.13		Distance ly	16.73
last precise pa	104.9		last precise sep	26.83

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19508+0852	DAL 27	AD	2007	3	97	31.7	0.95	11.90	A7V	N	195046.99+085205.9
19508+0852	DAL 27	AD	2008	5	98	31.2	0.95	11.90	A7V	N	195046.99+085205.9
19508+0852	DAL 27	AD	2009	6	99	30.6	0.95	11.90	A7V	NU	195046.99+085205.9
19508+0852	DAL 27	AD	2011	7	100	29.6	0.95	11.90	A7V	NU	195046.99+085205.9
19508+0852	DAL 27	AD	2013	9	100	29.4	0.95	11.90	A7V	NU	195046.99+085205.9
19508+0852	DAL 27	AD	2015	11	105	26.8	0.95	11.90	A7V	NU	195046.99+085205.9

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