20302+1925 S   752AC

Coord 2000	20302+1925		Discov num	S   752		Comp	AC		Coord arcsec 2000	20 30 14.44 +19 25 15.7
Date first	1824		Date last	2015		Obs	31
Pa first	288		Pa last	288		P.A. Now (θ)	288°
Sep first	105.9		Sep last	106.3		Sep. Now (ρ)	106.3"
Mag pri	6.80		Mag sec	7.30		delta mag (ΔM)	0.5		Spectral class	B7IV (blue-white)
Pri motion ra	+003		Sec motion ra	+003
Pri motion dec	-005		Sec motion dec	-005
Notes	N (See Notes)

Visually invisible, K-band or other infrared star 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		106177	20302+1925	BU 987	AB	1880	2018	12	128	2.5	6.80	11.10	4.30
Show		106177	20302+1925	S 752	AC	1824	2015	31	288	106.3	6.80	7.30	0.50		<===
Show		106177	20302+1925	FOX 254	AE	1913	2013	8	70	21.2	6.80	13.00	6.20
Show		106171	20302+1925	FOX 254	CD	1913	2015	8	301	35.0	7.30	15.30	8.00

Quintuple system
5 visible stars in this system

Precise pa	287.9		Precise sep	106.32		Constellation	Delphinus		SAO	106177
HIP	101154		Tycho2	1640-01818-1		Gaia DR2	92083365120		HD	195358
BD	BD+18 4517		Distance	386.1		Distance ly	1259.46

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20302+1925	S 752	AC	2001	25	288	106.7	6.80	7.30	B7IV	N D	203014.44+192515.8
20302+1925	S 752	AC	2011	26	288	106.7	6.80	7.30	B7IV	N D	203014.44+192515.7
20302+1925	S 752	AC	2012	28	288	106.5	6.80	7.30	B7IV	N	203014.44+192515.7
20302+1925	S 752	AC	2015	31	288	106.3	6.80	7.30	B7IV	N	203014.44+192515.7

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