20140-2808 HJ 5180AC

Coord 2000	20140-2808		Discov num	HJ 5180		Comp	AC		Coord arcsec 2000	20 13 57.83 -28 07 46.7
Date first	1834		Date last	2015		Obs	10
Pa first	221		Pa last	221		P.A. Now (θ)	221°
Sep first	4.0		Sep last	10.2		Sep. Now (ρ)	10.2"
Mag pri	10.81		Mag sec	11.80		delta mag (ΔM)	0.99		Spectral class
Pri motion ra	-030		Sec motion ra	-039
Pri motion dec	+005		Sec motion dec	+003
Notes

rPM=0.236 (< 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		189047	20140-2808	TDT2109	AB	1991	1991	1	27	1.8	10.90	12.00	1.10
Show		189047	20140-2808	HJ 5180	AC	1834	2015	10	221	10.2	10.81	11.80	0.99		<===

Triple system
3 visible stars in this system

Precise pa	220.5		Precise sep	10.163		Constellation	Sagittarius		SAO	189047
Tycho2	6918-00147-1		Gaia DR2	33529449216

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20140-2808	HJ 5180	AC	1999	7	221	10.2	10.81	11.80		D	201357.83-280746.7
20140-2808	HJ 5180	AC	2015	9	221	10.2	10.81	11.80			201357.83-280746.7

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