21172-0414 BU  161AE

Coord 2000	21172-0414		Discov num	BU  161		Comp	AE		Coord arcsec 2000	21 17 10.66 -04 14 22.3
Date first	1899		Date last	2002		Obs	4
Pa first	332		Pa last	329		P.A. Now (θ)	329°
Sep first	40.6		Sep last	39.6		Sep. Now (ρ)	39.6"
Mag pri	8.18		Mag sec	13.10		delta mag (ΔM)	4.92		Spectral class	K0 (yellow-orange)
Pri motion ra	+010		Sec motion ra	-019
Pri motion dec	+002		Sec motion dec	+028
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			21172-0414	BU 161	AB	1873	2003	14	351	100.7	8.18	10.29	2.11
Show			21172-0414	BU 161	AD	1891	2002	5	317	32.2	8.18	13.60	5.42
Show			21172-0414	BU 161	AE	1899	2002	4	329	39.6	8.18	13.10	4.92		<===
Show			21172-0414	BU 161	BC	1873	2015	10	315	8.2	10.29	11.60	1.31
Show			21172-0414	BU 161	DE	1891	2000	4	9	10.7	13.70	13.70	0.00

Quintuple system
5 visible stars in this system

Constellation

Aquarius

last precise pa

329.2

last precise sep

39.62

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21172-0414	BU 161	AE	2002	3	329	39.6	8.18	13.10	K0	N D	211710.66-041422.3

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