20169+1303 ABH 137AF

Coord 2000	20169+1303		Discov num	ABH 137		Comp	AF		Coord arcsec 2000	20 16 56.72 +13 02 42.6
Date first	1987		Date last	2015		Obs	10
Pa first	38		Pa last	38		P.A. Now (θ)	38°
Sep first	82.0		Sep last	81.8		Sep. Now (ρ)	81.8"
Mag pri	11.83		Mag sec	15.60		delta mag (ΔM)	3.77		Spectral class	G8IIIb (yellow)
Pri motion ra	+002		Sec motion ra	+004
Pri motion dec	+001		Sec motion dec	-005
Notes	U (Proper motion indicates non-physical)

Visually invisible, K-band or other infrared star rPM=0.988 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20169+1303	J 1879	AB	1903	2016	14	233	11.4	11.83	11.95	0.12
Show			20169+1303	J 1879	AC	1941	2016	11	272	13.7	11.83	14.00	2.17
Show			20169+1303	ABH 137	AD	1987	2015	10	43	25.6	11.83	15.70	3.87
Show			20169+1303	ABH 137	AE	1987	2015	10	289	86.0	11.83	13.91	2.08
Show			20169+1303	ABH 137	AF	1987	2015	10	38	81.8	11.83	15.60	3.77		<===
Show			20169+1303	ABH 137	AG	1987	2015	10	112	118.0	11.83	15.13	3.30

Septuple system
7 visible stars in this system

Precise pa

37.9

Precise sep

81.757

Constellation

Delphinus

Gaia DR2

42462462080

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20169+1303	ABH 137	AF	2006	3	38	81.7	12.22	15.60	G8IIIb		201656.72+130242.6
20169+1303	ABH 137	AF	2015	6	38	81.8	11.83	15.60	G8IIIb	U	201656.72+130242.6

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