19194-0136 HDS 2734 Aa,Ab

Coord 2000	19194-0136		Discov num	HDS2734		Comp	Aa,Ab		Coord arcsec 2000	19 19 26.50 -01 36 57.7
Date first	1991		Date last	2021		Obs	17
Pa first	165		Pa last	92.2		P.A. Now (θ)	119.3°
Sep first	0.4		Sep last	0.155		Sep. Now (ρ)	0.201"
Mag pri	10.97		Mag sec	11.37		delta mag (ΔM)	0.4		Spectral class	M0 (red)
Pri motion ra	+157		Sec motion ra
Pri motion dec	+098		Sec motion dec
Notes	O (Orbital solution)

This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			19 19 26 -01 36 58	HDS 2734 Aa,Ab	2021	17	92	0.2	10.97	11.37	0.40	Y	<===
Show			19 19 26 -01 36 58	WOR 8 AB	2000	5	253	13.7	10.35	14.29	3.94

Triple system
2 estimated visually detectable stars in this system

Constellation	Aquila		HIP	94960		Tycho2	5130-02249-1		Gaia DR2	4262771503914847616
HD	181148		Distance	59.03		Distance ly	192.56

Period (P)	36.83y	± 0.29	Periastron (T)	2020.1y	± 0.03	Semi-major axis (a)	0.296a	± 0.001
Eccentricity (e)	0.625	± 0.012	Inclination (i)	0°		Longitude of periastron (ω)	0°
Node (Ω)	19.85°	± 0.4	Notes			Reference	Tok2019c
Equinox			Last observation	2018		Grade	3	(1=Definitive, 9=Indet.)

label theta rho 2000 195.0 0.478 2001 197.9 0.481 2002 200.8 0.481 2003 203.7 0.479 2004 206.6 0.476 2005 209.6 0.470 2006 212.7 0.462 2007 215.9 0.452 2008 219.2 0.440 2009 222.8 0.425 2010 226.7 0.408 2011 230.9 0.388 2012 235.6 0.366 2013 240.9 0.341 2014 247.2 0.313 2015 254.7 0.282 2016 264.3 0.247 2017 277.3 0.209 2018 296.2 0.169 2019 326.7 0.131 2020 14.4 0.111 2021 64.8 0.125 2022 98.5 0.161 2023 119.3 0.201 2024 133.1 0.240 2025 143.2 0.275 2026 151.2 0.307 2027 157.6 0.336 2028 163.1 0.361 2029 167.9 0.384 2030 172.2 0.404		Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic

No records found.

refcode	metd	author	reference
Tok2019c	St j	Tokovinin, A., Mason, B.D., Mendez, R.A., Horch, E.P. & Briceno, C.	2019AJ....158...48T
Tok2019c	+orb	AJ 158, 48, 2019

idgroup	discov	author
1	HDS	Hipparcos Double Star (from additional DD list)
1	WOR	Worley, C.E.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19194-0136	HDS2734	Aa,Ab	2001	3	200	0.5	10.97	11.37	M0	D	191926.50-013657.7
19194-0136	HDS2734	Aa,Ab	2008	4	220	0.4	10.97	11.37	M0	D	191926.50-013657.7
19194-0136	HDS2734	Aa,Ab	2014	6	249	0.3	10.97	11.37	M0	O	191926.50-013657.7
19194-0136	HDS2734	Aa,Ab	2017	10	284	0.2	10.97	11.37	M0	O	191926.50-013657.7
19194-0136	HDS2734	Aa,Ab	2018	11	310	0.1	10.97	11.37	M0	O	191926.50-013657.7
19194-0136	HDS2734	Aa,Ab	2019	12	345	0.1	10.97	11.37	M0	O	191926.50-013657.7
19194-0136	HDS2734	Aa,Ab	2020	14	58	0.1	10.97	11.37	M0	O	191926.50-013657.7
19194-0136	HDS2734	Aa,Ab	2021	16	92	0.2	10.97	11.37	M0	O	191926.50-013657.7

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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