20052+4923 ARN9002BC

Coord 2000	20052+4923		Discov num	ARN9002		Comp	BC		Coord arcsec 2000	20 05 17.27 +49 24 13.2
Date first	1828		Date last	2015		Obs	15
Pa first	240		Pa last	240		P.A. Now (θ)	240°
Sep first	25.1		Sep last	33.8		Sep. Now (ρ)	33.8"
Mag pri	10.76		Mag sec	10.53		delta mag (ΔM)	0.23		Spectral class
Pri motion ra	-006		Sec motion ra	-002
Pri motion dec	-007		Sec motion dec	+006
Notes

rPM=1.475 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20052+4923	HJ 1481	AB	1828	2015	18	6	18.1	10.87	10.76	0.11
Show			20052+4923	HJ 1481	AC	1901	2015	16	272	27.4	10.87	10.53	0.34
Show			20052+4923	ABH 128	AD	1987	2015	8	104	118.5	10.87	14.17	3.30
Show			20052+4923	ABH 128	AE	1987	2015	8	104	104.9	10.87	14.10	3.23
Show			20052+4923	ABH 128	AF	1987	2015	8	38	78.2	10.87	15.13	4.26
Show			20052+4923	ABH 128	AG	1987	2015	8	318	81.1	10.87	15.50	4.63
Show			20052+4923	ABH 128	AH	1987	2015	8	256	100.8	10.87	15.20	4.33
Show			20052+4923	ABH 128	AI	1987	2015	8	250	103.4	10.87	15.20	4.33
Show			20052+4923	ARN9002	BC	1828	2015	15	240	33.8	10.76	10.53	0.23		<===

Ninefold system
9 visible stars in this system

Precise pa	240.1		Precise sep	33.819		Constellation	Cygnus		Tycho2	3567-01782-1
Gaia DR2	27890309760

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20052+4923	ARN9002	BC	2005	8	240	34.1	10.76	10.53			200517.27+492413.2
20052+4923	ARN9002	BC	2009	9	240	34.1	10.76	10.53		D	200517.27+492413.2
20052+4923	ARN9002	BC	2015	12	240	33.8	10.76	10.53			200517.27+492413.2

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