19064-3704 HJ 5084 (Gam CrA)

 
 
19h 06m 25.14s -37 03' 48.5" P.A. 322.00 sep 1.5 mag 5.01,5.05 Sp F8V+F8V dist. 17.3 pc (56.43 l.y.)
 
 
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 2021 Obs 296
Pa first 217 Pa last 322 P.A. Now (θ) 318.5°
Sep first 1.2 Sep last 1.52 Sep. Now (ρ) 1.555"
Mag pri 5.01 Mag sec 5.05 delta mag (ΔM) 0.04 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.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Gam CrA Constellation Corona Austrina SAO 210928 HIP 93825
Tycho2 7422-01737-1 Gaia DR2 6719152945032456832 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
Bayer greek γ CrA
 
 
ORBITAL ELEMENTS
 
 
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 Notesn ReferenceIzm2019
Equinox Last observation2014 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 60.8 1.276
2001 55.7 1.285
2002 50.7 1.293
2003 45.7 1.301
2004 40.8 1.308
2005 35.9 1.314
2006 31.1 1.321
2007 26.3 1.326
2008 21.6 1.332
2009 16.9 1.338
2010 12.2 1.344
2011 7.6 1.351
2012 3.0 1.360
2013 358.5 1.369
2014 354.1 1.380
2015 349.8 1.393
2016 345.5 1.407
2017 341.3 1.423
2018 337.2 1.441
2019 333.3 1.461
2020 329.4 1.482
2021 325.6 1.505
2022 322.0 1.529
2023 318.5 1.555
2024 315.1 1.582
2025 311.8 1.611
2026 308.6 1.640
2027 305.6 1.670
2028 302.6 1.701
2029 299.8 1.732
2030 297.0 1.763


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.



 
 


wds19064-3704b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic