14562+1745 HDS 2108 AB

Coord 2000	14562+1745		Discov num	HDS2108		Comp	AB		Coord arcsec 2000	14 56 12.87 +17 44 53.5
Date first	1991		Date last	2019		Obs	25
Pa first	46		Pa last	170		P.A. Now (θ)	129.5°
Sep first	0.2		Sep last	0.133		Sep. Now (ρ)	0.13"
Mag pri	11.80		Mag sec	12.31		delta mag (ΔM)	0.51		Spectral class	K5V+M0.5V (yellow-orange/red)
Pri motion ra	-188		Sec motion ra
Pri motion dec	+051		Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

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name

SAO

coord

wds_name

last

obs

pa

sep

mag1

mag2

d_mag

orb

current

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14 56 13 +17 44 54

HDS 2108 AB

2019

25

170

0.1

11.80

12.31

0.51

Y

<===

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14 56 13 +17 44 54

GII 61 AC

2016

11

194

1.8

11.80

15.00

3.20

Triple system
3 estimated visually detectable stars in this system

Constellation	Bootes		HIP	73085		Tycho2	1488-00128-3		Gaia DR2	1188311317867057536
Distance	71.99		Distance ly	234.83

Period (P)	43.6y	± 0.6	Periastron (T)	2014.66y	± 0.06	Semi-major axis (a)	216.4m	± 1.6
Eccentricity (e)	0.475	± 0.004	Inclination (i)	123.9°	± 0.8	Longitude of periastron (ω)	136.9°	± 1.3
Node (Ω)	22.6°	± 0.5	Notes			Reference	Mit2020
Equinox			Last observation			Grade	3	(1=Definitive, 9=Indet.)

label theta rho 2000 32.8 0.284 2001 30.4 0.280 2002 28.0 0.275 2003 25.4 0.267 2004 22.6 0.257 2005 19.6 0.244 2006 16.2 0.228 2007 12.2 0.210 2008 7.5 0.188 2009 1.3 0.164 2010 352.8 0.136 2011 339.8 0.107 2012 317.8 0.081 2013 282.7 0.070 2014 247.0 0.080 2015 223.3 0.101 2016 207.7 0.119 2017 195.6 0.130 2018 184.8 0.134 2019 174.2 0.134 2020 163.4 0.132 2021 152.3 0.129 2022 140.9 0.129 2023 129.5 0.130 2024 118.7 0.135 2025 108.7 0.141 2026 99.7 0.150 2027 91.8 0.160 2028 84.9 0.171 2029 78.9 0.183 2030 73.6 0.195		Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic

discov_num	notes	refcode
HDS2108	AB: Cvetkovic et al. (2016) estimate spectral types K5 and K6, masses
	0.65 and 0.60 Msun. Dynamical parallax is 16.63 +/- 1.12 mas.	Cve2016b
GII 61	AC: GII 85AC.

refcode	metd	author	reference
Cve2016b	orb -	Cvetkovic, Z., Pavlovic, R. & Ninkovic, S.	2016AJ....151...83C
Cve2016b	+lin	AJ 151, 83, 2016
Mit2020	S -	Mitrofanova, A., Dyachenko, V., Beskakotov, A., Balega, Y., Maksimov, A.,	2020AJ....159..266M
Mit2020		Rastegaev, D. & Komarinsky, S.
Mit2020		AJ 159, 266, 2020

idgroup	discov	author
1	GII	Gili, R.
22	GII	Gili, R., Prieur, J.-L., Rivet, J.-P., Scardia, M., Pansecchi, L., Argyle, R.W.,
22	GII	Ling, J.F., Piccotti, L., Aristidi, E., Koechlin, L., Bonneau, D. & Maccarini, L.
23	GII	Gili, R., Prieur, J.-L., Rivet, J.-P., Vakili, F., Scardia, M., Pansecchi, L.,
23	GII	Argyle, R.W., Ling, J.F., Piccotti, L., Aristidi, E., Koechlin, L., Bonneau, D.,
23	GII	Maccarini, L. & Serot, J.
24	GII	Gili, R., Prieur, J.-L., Rivet, J.-P., Vakili, F., Scardia, M., Pansecchi, L.,
24	GII	Argyle, R.W., Ling, J.F., Piccotti, L., Aristidi, E., Koechlin, L., Bonneau, D.,
24	GII	Maccarini, L. & Serot, J.
27	HDS	Hipparcos Double Star (from additional DD list)

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
14562+1745	HDS2108	AB	2014	12	235	0.1	11.80	12.31	M0	O	145612.87+174453.5
14562+1745	HDS2108	AB	2019	25	170	0.1	11.80	12.31	K5V+M0.5V	NO	145612.87+174453.5

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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

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