20001+1737 HO  638AE

Coord 2000	20001+1737		Discov num	HO  638		Comp	AE		Coord arcsec 2000	20 00 08.28 +17 36 38.6
Date first	1889		Date last	1928		Obs	4
Pa first	291		Pa last	283		P.A. Now (θ)	283°
Sep first	2.2		Sep last	2.7		Sep. Now (ρ)	2.7"
Mag pri	7.16		Mag sec	10.20		delta mag (ΔM)	3.04		Spectral class	K0 (yellow-orange)
Pri motion ra	+004		Sec motion ra
Pri motion dec	+008		Sec motion dec
Notes	N (See 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			20001+1737	S 730	AB	1825	2014	27	14	112.8	7.16	8.45	1.29
Show			20001+1737	S 730	AC	1879	2014	22	338	78.5	7.16	10.21	3.05
Show			20001+1737	S 730	AD	1879	2014	16	198	40.7	7.16	9.90	2.74
Show			20001+1737	HO 638	AE	1889	1928	4	283	2.7	7.16	10.20	3.04		<===
Show			20001+1737	S 730	BC	1879	2002	13	238	68.4	8.45	10.21	1.76

Quintuple system
5 visible stars in this system

Precise pa	282.6		Precise sep	2.69		Cdsa2 id	HO 638 AE		Constellation	Sagitta
Ra deg	20.0023		De deg	17.610722222222222		last precise pa	282.6		last precise sep	2.69

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20001+1737	HO 638	AE	1928	4	283	2.7	7.16	10.20	K0		200008.28+173638.6

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