16509+3556 JNN 110Ca,Cb

Coord 2000	16509+3556		Discov num	JNN 110		Comp	Ca,Cb		Coord arcsec 2000	16 51 09.95 +35 55 07.5
Date first	2008		Date last	2009		Obs	4
Pa first	316		Pa last	316		P.A. Now (θ)	316°
Sep first	1.0		Sep last	1.0		Sep. Now (ρ)	1"
Mag pri	15.00		Mag sec	16.80		delta mag (ΔM)	1.8		Spectral class	M4+M5.5 (red/red)
Pri motion ra	-069		Sec motion ra
Pri motion dec	+171		Sec motion dec
Notes	V (Proper motion indicates physical)

This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			16 50 57 +35 55 58	SKF 1351 AB	2015	15	245	12.6	11.40	15.80	4.40
Show			16 50 57 +35 55 58	SKF 1351 AC	2015	11	108	167.7	11.36	15.00	3.64
Show			16 50 56 +35 55 53	SKF 1351 BC	2015	5	105	177.1	15.30	14.70	0.60
Show			16 51 10 +35 55 08	JNN 110 Ca,Cb	2009	4	316	1.0	15.00	16.80	1.80		<===

Quadruple system
3 visible stars in this system

Precise pa

316.4

Precise sep

1.035

Constellation

Hercules

Gaia DR2

1327082157878467328

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
16509+3556	JNN 110	Ca,Cb	2009	4	316	1.0	15.00	16.80	M4 M5.5	N	165109.95+355507.5

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