20057+2320 POU4209AB

Coord 2000	20057+2320		Discov num	POU4209		Comp	AB		Coord arcsec 2000	20 05 40.29 +23 20 26.9
Date first	1894		Date last	2015		Obs	7
Pa first	55		Pa last	51		P.A. Now (θ)	51°
Sep first	17.5		Sep last	15.1		Sep. Now (ρ)	15.1"
Mag pri	11.10		Mag sec	12.70		delta mag (ΔM)	1.6		Spectral class
Pri motion ra	-001		Sec motion ra	-022
Pri motion dec	-007		Sec motion dec	-010
Notes

rPM=0.878 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 05 40 +23 20 27	POU 4209 AB	2015	7	51	15.1	11.10	12.70	1.60		<===
Show			20 05 40 +23 20 27	POU 4210 AC	2015	5	286	13.8	11.10	13.30	2.20
Show			20 05 40 +23 20 27	BKO 759 AD	2009	1	222	1.6	11.10	12.00	0.90

Quadruple system
4 visible stars in this system

Precise pa	51		Precise sep	15.11		Constellation	Vulpecula		Tycho2	2154-02441-1
Gaia DR2	1833190379504456064

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20057+2320	POU4209	AB	2000	4	51	15.7	11.10	12.70		D	200540.30+232027.0
20057+2320	POU4209	AB	2009	5	51	15.6	11.10	12.70		D	200540.30+232027.0
20057+2320	POU4209	AB	2015	7	51	15.1	11.10	12.70			200540.29+232026.9

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