21164-0003 LYS 42 AB

Coord 2000	21164-0003		Discov num	LYS  42		Comp	AB		Coord arcsec 2000	21 16 23.89 -00 02 18.6
Date first	1984		Date last	2016		Obs	10
Pa first	185		Pa last	188.1		P.A. Now (θ)	188.1°
Sep first	6.1		Sep last	6.172		Sep. Now (ρ)	6.172"
Mag pri	10.86		Mag sec	13.40		delta mag (ΔM)	2.54		Spectral class
Pri motion ra	+016		Sec motion ra	+007
Pri motion dec	-006		Sec motion dec	-011
Notes

rPM=0.603 Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			21 16 24 -00 02 19	LYS 42 AB	2016	10	188	6.2	10.86	13.40	2.54		<===
Show			21 16 24 -00 02 19	LYS 42 AC	2014	11	108	55.7	10.86	11.37	0.51
Show			21 16 24 -00 02 19	LYS 42 AD	2015	8	170	69.9	10.86	12.81	1.95

Quadruple system
4 estimated visually detectable stars in this system

Constellation

Aquarius

Gaia DR2

2689541574824948096

No records found.

refcode	metd	author	reference
Lys1987a	Pa ?	Louys, L.	1987BAORB..10..129L
Lys1987a		Bull. R. Astron. Obs. Belgium 10, 129, 1987
Lys1987b	Pa ?	Louys, L.	1987BAORB..10..136L
Lys1987b		Bull. R. Astron. Obs. Belgium 10, 136, 1987

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21164-0003	LYS 42	AB	1998	2	188	6.2	10.86	13.40		D	211623.89-000218.6
21164-0003	LYS 42	AB	2000	3	188	6.2	10.86	13.40		D	211623.89-000218.6
21164-0003	LYS 42	AB	2010	5	186	5.3	10.86	13.40			211623.89-000218.6
21164-0003	LYS 42	AB	2015	5	188	6.2	10.86	13.40			211623.89-000218.6
21164-0003	LYS 42	AB	2016	10	188	6.2	10.86	13.40			211623.89-000218.6

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No records found.


No records found.

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS