19064-3704 HJ 5084 (Gam CrA)

 
 
19h 06m 25.14s -37 03' 48.5" P.A. 336.6 sep 1.46 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
2017
Obs
278
Pa first
217
Pa last
338
P.A. Now (θ)
336.6°
Sep first
1.2
Sep last
1.4
Sep. Now (ρ)
1.46"
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
337.8
Precise sep
1.436
Name
Gam CrA
Constellation
Corona Austrina
SAO
210928
HIP
93825
Tycho2
7422-01737-1
HD
177474
HR
7226
GC
26263
GL
Gl 743.1A
Bayer
Gamma Coronae Austrinae
Bayer name
Gam CrA
Distance
17.3
Distance ly
56.43
last precise pa
337.8
last precise sep
1.436
 
 
ORBITAL ELEMENTS
 
 
Period (P)121.76y Periastron (T)2000.64y Semi-major axis (a)1.896a
Eccentricity (e)0.32 Inclination (i)149.6° Longitude of periastron (ω)349°
Node (Ω)50.3° Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation1985
label rho theta
2000 1.279 63.2
2001 1.286 57.9
2002 1.292 52.7
2003 1.298 47.5
2004 1.304 42.4
2005 1.310 37.3
2006 1.316 32.3
2007 1.322 27.3
2008 1.328 22.3
2009 1.335 17.4
2010 1.343 12.6
2011 1.351 7.8
2012 1.361 3.1
2013 1.373 358.4
2014 1.386 353.9
2015 1.401 349.4
2016 1.418 345.0
2017 1.437 340.8
2018 1.457 336.6
2019 1.480 332.6
2020 1.503 328.7
2021 1.529 324.9
2022 1.556 321.2
2023 1.584 317.7
2024 1.614 314.3
2025 1.644 311.0
2026 1.675 307.9
2027 1.707 304.9
2028 1.739 301.9
2029 1.772 299.1
2030 1.805 296.4

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

grafico orbita





wds19064-3704a.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

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