20156+1526 HDS2887AB

Coord 2000	20156+1526		Discov num	HDS2887		Comp	AB		Coord arcsec 2000	20 15 33.68 +15 26 12.9
Date first	1991		Date last	1991		Obs	2
Pa first	244		Pa last	244		P.A. Now (θ)	244°
Sep first	4.7		Sep last	4.7		Sep. Now (ρ)	4.7"
Mag pri	8.85		Mag sec	13.18		delta mag (ΔM)	4.33		Spectral class	A0p... (white)
Pri motion ra	-001		Sec motion ra	-001
Pri motion dec	-011		Sec motion dec	-011
Notes

Nature of this double is uncertain.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		105902	20156+1526	HDS2887	AB	1991	1991	2	244	4.7	8.85	13.18	4.33		<===
Show		105902	20156+1526	CHE 246	AC	1910	2016	11	87	15.9	8.85	11.00	2.15
Show		105902	20156+1526	CVP 1	AD	1998	2016	8	340	39.7	8.85	12.75	3.90

Quadruple system
4 visible stars in this system

Precise pa	243.8		Precise sep	4.72		Constellation	Delphinus		SAO	105902
HIP	99857		Tycho2	1618-01698-1		Gaia DR2	44571397760		HD	192686
BD	BD+14 4240		Distance	699.3		Distance ly	2281.12

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20156+1526	HDS2887	AB	1991	2	244	4.7	8.85	13.18	A0p...		201533.68+152612.9

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