19436-1528 BUP 197

Coord 2000	19436-1528		Discov num	BUP 197		Comp			Coord arcsec 2000	19 43 33.45 -15 28 10.8
Date first	1910		Date last	2010		Obs	7
Pa first	129		Pa last	124		P.A. Now (θ)	124°
Sep first	81.8		Sep last	58.6		Sep. Now (ρ)	58.6"
Mag pri	5.49		Mag sec	11.70		delta mag (ΔM)	6.21		Spectral class	F5IV (yellow-white)
Pri motion ra	+156		Sec motion ra
Pri motion dec	-183		Sec motion dec
Notes

Nature of this double is uncertain.

Precise pa	123.5		Precise sep	58.63		Cdsa2 id	BUP 197		Constellation	Sagittarius
SAO	162931		HIP	97063		HD	186185		HR	7496
GL	Wo 9666		Ra deg	19.72595833333333		De deg	-15.469666666666667		Distance	48.92
Distance ly	159.58		last precise pa	123.5		last precise sep	58.63

Period (P)	1297d (3.55y)	± 206	Periastron (T)	48919d (1992.812y)	± 370	Semi-major axis (a)	17.3m	± 2.1
Eccentricity (e)	0.38	± 0.16	Inclination (i)	33°	± 10	Longitude of periastron (ω)	126°	± 102
Node (Ω)	222°	± 122	Note			Grade	9	(1=Definitive, 9=Indet.)
Equinox			Last observation	1991

label rho theta 2000-01-01 0.010 13.1 2001-01-01 0.018 131.2 2002-01-01 0.022 188.3 2003-01-01 0.014 253.8 2004-01-01 0.014 81.0 2005-01-01 0.020 160.0 2006-01-01 0.021 211.1 2007-01-01 0.010 348.7 2008-01-01 0.017 123.4 2009-01-01 0.022 183.3 2010-01-01 0.016 242.8 2011-01-01 0.014 68.9 2012-01-01 0.020 154.1 2013-01-01 0.021 205.6 2014-01-01 0.009 321.2 2015-01-01 0.017 115.0 2016-01-01 0.022 178.3 2017-01-01 0.017 233.8 2018-01-01 0.013 55.5 2019-01-01 0.019 147.9 2020-01-01 0.022 200.4 2021-01-01 0.010 295.3 2022-01-01 0.016 105.9 2023-01-01 0.021 173.1 2024-01-01 0.018 226.2 2025-01-01 0.012 40.0 2026-01-01 0.019 141.2 2027-01-01 0.022 195.3 2028-01-01 0.012 274.6 2029-01-01 0.015 96.1 2030-01-01 0.021 167.8 Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19436-1528	BUP 197		1960	2	127	70.4	5.49	11.70	F5IV		194333.45-152810.8
19436-1528	BUP 197		1985	3	125	64.5	5.49	11.70	F5IV		194333.45-152810.8
19436-1528	BUP 197		2000	6	125	61.2	5.49	11.70	F5IV		194333.45-152810.8
19436-1528	BUP 197		2010	7	124	58.6	5.49	11.70	F5IV		194333.45-152810.8

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