20124-1237 TDT2085AC

Coord 2000	20124-1237		Discov num	TDT2085		Comp	AC		Coord arcsec 2000	20 12 25.87 -12 37 03.0
Date first	1991		Date last	2015		Obs	9
Pa first	194		Pa last	194		P.A. Now (θ)	194°
Sep first	999.9		Sep last	999.9		Sep. Now (ρ)	999.9"
Mag pri	5.89		Mag sec	11.20		delta mag (ΔM)	5.31		Spectral class	F7V+M0Vk (yellow-white/red)
Pri motion ra	+192		Sec motion ra	+193
Pri motion dec	-196		Sec motion dec	-190
Notes	N V (See Notes, Proper motion indicates physical)

Visually invisible, K-band or other infrared star rPM=0.022 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	Xi Cap	163337	20124-1237	BUP 206	AB	1909	2014	8	272	90.5	5.89	12.75	6.86
Show		163337	20124-1237	TDT2085	AC	1991	2015	9	194	999.9	5.89	11.20	5.31		<===
Show			20124-1237	RAO 88	CD	2000	2015	3	273	18.0	11.20	15.59	4.39

Quadruple system
4 visible stars in this system

Precise pa	193.6		Precise sep	1021.022		Constellation	Capricornus		SAO	163337
HIP	99572		Tycho2	5748-02599-1		Gaia DR2	52737781888		HD	191862
HR	7715		GC	28035		GL	NN 4139		BD	BD-13 5608
Bayer	Xi Capricorni		Bayer name	Xi Cap		Flamsteed	2 Capricorni		Flamsteed name	2 Cap
Distance	27.7		Distance ly	90.36

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20124-1237	TDT2085	AC	1991	1	194	999.9	5.89	11.20			201225.76-123701.3
20124-1237	TDT2085	AC	1998	2	194	999.9	5.89	11.20		D	201225.76-123701.3
20124-1237	TDT2085	AC	2000	3	194	999.9	5.89	11.20		NVD	201225.76-123701.3
20124-1237	TDT2085	AC	2015	5	194	999.9	5.89	11.20	F7V+M0Vk	NV	201225.87-123703.0

If you need more information about this double, apply for a data request form to the WDS.