19064-3704 HJ 5084 (Gam CrA)

 
 
19h 06m 25.14s -37 03' 48.5" P.A. 325.60 sep 1.5 mag 4.53,6.42 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
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.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
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
 
 
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 Note Grade2(1=Definitive, 9=Indet.)
Equinox Last observation2014
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.
 
grafico orbita






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