19064-3704 HJ 5084 (Gam CrA)

Coord 2000	19064-3704		Discov num	HJ 5084		Comp			Coord arcsec 2000	19 06 25.14 -37 03 48.5
Date first	1834		Date last	2020		Obs	291
Pa first	217		Pa last	325		P.A. Now (θ)	325.6°
Sep first	1.2		Sep last	1.5		Sep. Now (ρ)	1.51"
Mag pri	4.53		Mag sec	6.42		delta mag (ΔM)	1.89		Spectral class	F8V+F8V (yellow-white/yellow-white)
Pri motion ra	+088		Sec motion ra	+088
Pri motion dec	-284		Sec motion dec	-284
Notes	N O (See Notes, Orbital solution)

This double is physical.

Precise pa	325.2		Precise sep	1.502		Name	Gam CrA		Constellation	Corona Austrina
SAO	210928		HIP	93825		Tycho2	7422-01737-1		Gaia DR2	45032456832
HD	177474		HR	7226		GC	26263		GL	Gl 743.1A
CD	CD-3713048		CP	CP-37 8464		Bayer	Gamma Coronae Austrinae		Bayer name	Gam CrA
Distance	17.3		Distance ly	56.43		last precise pa	325.2		last precise sep	1.502

Period (P)	122.2053y	± 0.2386	Periastron (T)	1877.8043y	± 0.0811	Semi-major axis (a)	1.88053a	± 0.00423
Eccentricity (e)	0.31572	± 0.00125	Inclination (i)	147.865°	± 0.455	Longitude of periastron (ω)	345.873°	± 0.94
Node (Ω)	48.725°	± 0.705	Note			Grade	2	(1=Definitive, 9=Indet.)
Equinox			Last observation	2014

label rho theta 2000 1.276 60.8 2001 1.285 55.7 2002 1.293 50.7 2003 1.301 45.7 2004 1.308 40.8 2005 1.314 35.9 2006 1.321 31.1 2007 1.326 26.3 2008 1.332 21.6 2009 1.338 16.9 2010 1.344 12.2 2011 1.351 7.6 2012 1.360 3.0 2013 1.369 358.5 2014 1.380 354.1 2015 1.393 349.8 2016 1.407 345.5 2017 1.423 341.3 2018 1.441 337.2 2019 1.461 333.3 2020 1.482 329.4 2021 1.505 325.6 2022 1.529 322.0 2023 1.555 318.5 2024 1.582 315.1 2025 1.611 311.8 2026 1.640 308.6 2027 1.670 305.6 2028 1.701 302.6 2029 1.732 299.8 2030 1.763 297.0 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
19064-3704	HJ 5084		1999	260	62	1.3	4.53	6.42	F8V F8V	NOD	190625.14-370348.5
19064-3704	HJ 5084		2009	263	15	1.3	4.53	6.42	F8V F8V	NOD	190625.14-370348.5
19064-3704	HJ 5084		2010	265	9	1.3	4.53	6.42	F8V F8V	NOD	190625.14-370348.5
19064-3704	HJ 5084		2013	269	0	1.4	4.53	6.42	F8V F8V	NOD	190625.14-370348.5
19064-3704	HJ 5084		2014	273	351	1.4	4.53	6.42	F8V+F8V	NOD	190625.14-370348.5
19064-3704	HJ 5084		2016	274	343	1.6	4.53	6.42	F8V+F8V	NO	190625.14-370348.5
19064-3704	HJ 5084		2017	278	338	1.4	4.53	6.42	F8V+F8V	NO	190625.14-370348.5
19064-3704	HJ 5084		2018	285	333	1.5	4.53	6.42	F8V+F8V	NO	190625.14-370348.5
19064-3704	HJ 5084		2019	287	330	1.5	4.53	6.42	F8V+F8V	NO	190625.14-370348.5

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