19464+3344 STF 2580 AB (Chi Cyg)

 
 
19h 46m 25.60s +33 43' 39.3" P.A. 68.00 sep 25.9 mag 5.06,9.25 Sp F5V dist. 21.23 pc (69.25 l.y.)
 
 
Coord 2000 19464+3344 Discov num STF2580 Comp AB Coord arcsec 2000 19 46 25.60 +33 43 39.3
Date first 1822 Date last 2020 Obs 155
Pa first 73 Pa last 68.1 P.A. Now (θ) 68.1°
Sep first 25.5 Sep last 25.89 Sep. Now (ρ) 25.89"
Mag pri 5.06 Mag sec 9.25 delta mag (ΔM) 4.19 Spectral class F5V (yellow-white)
Pri motion ra +023 Sec motion ra +022
Pri motion dec -448 Sec motion dec -439
Notes N O T (See Notes, Orbital solution, Parallax indicates physical)
rPM=0.02 (< 0.3, Physical double)
This double is physical.
 
 
19464+3344 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Chi Cyg 68827 19 46 26 +33 43 39 STF 2580 AB 2020 155 68 25.9 5.06 9.25 4.19 Y <===
Show 68827 19 46 26 +33 43 39 STF 2580 AC 2020 40 122 106.3 5.06 9.44 4.38
Show 68827 19 46 26 +33 43 39 KPR 4 AD 1998 2 47 89.5 5.06 13.30 8.24
Show 68827 19 46 26 +33 43 39 KPR 4 AE 2012 7 63 105.7 5.06 11.98 6.92
Show 68827 19 46 26 +33 43 39 WNO 56 AF 2002 10 235 792.0 5.06 8.48 3.42 Y
Show 19 46 28 +33 43 48 STF 2580 BC 2016 23 139 100.8 9.25 9.44 0.19
Show 68799 19 46 28 +33 43 48 STF 2580 BG 2016 4 235 817.7 9.25 8.58 0.67
Show 68799 19 45 34 +33 36 07 STF 2576 FG 2020 483 155 3.2 8.47 8.58 0.11 Y
Show 68799 19 45 34 +33 36 07 STF 2576 FH 2016 7 348 51.3 8.48 13.80 5.32
Show 68799 19 45 34 +33 36 07 STF 2576 FI 2016 12 333 34.6 8.48 12.40 3.92
Show 68799 19 45 34 +33 36 07 TKA 1 FJ 2016 5 235 23.3 8.48 11.70 3.22
Show 68799 19 45 34 +33 36 07 RAO 69 FK 2015 4 322 17.2 8.48 14.90 6.42
Show 68799 19 45 34 +33 36 04 STF 2576 GI 2016 4 334 37.3 8.58 12.40 3.82
Show 68799 19 45 34 +33 36 04 STF 2576 GJ 2016 7 242 22.5 8.58 11.70 3.12
11-fold system
11 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Chi Cyg Var name NSV12398 Cyg Constellation Cygnus SAO 68827
HIP 97295 Tycho2 2660-04227-1 HD 187013 HR 7534
GC 27369 ADS 12913 GL Gl 767.1A BD BD+33 3587
Bayer Chi Cygni Bayer name Chi Cyg Flamsteed 17 Cygni Flamsteed name 17 Cyg
Distance 21.23 Distance ly 69.25 Bayer greek χ Cyg
 
 
ORBITAL ELEMENTS
 
 
Period (P)7904.9885y± 3402.7299 Periastron (T)3084.6796y± 1832.2686 Semi-major axis (a)40.15567a± 17.28789
Eccentricity (e)0.68361± 0.23569 Inclination (i)103.92°± 10.721 Longitude of periastron (ω)81.415°± 21.307
Node (Ω)52.236°± 27.381 Notesn ReferenceIzm2019
Equinox Last observation2014 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 68.6 26.078
2001 68.6 26.080
2002 68.5 26.082
2003 68.5 26.084
2004 68.5 26.085
2005 68.5 26.087
2006 68.5 26.089
2007 68.5 26.091
2008 68.4 26.093
2009 68.4 26.095
2010 68.4 26.096
2011 68.4 26.098
2012 68.4 26.100
2013 68.3 26.101
2014 68.3 26.103
2015 68.3 26.105
2016 68.3 26.107
2017 68.3 26.108
2018 68.2 26.110
2019 68.2 26.111
2020 68.2 26.113
2021 68.2 26.115
2022 68.2 26.116
2023 68.1 26.118
2024 68.1 26.119
2025 68.1 26.121
2026 68.1 26.122
2027 68.1 26.124
2028 68.1 26.125
2029 68.0 26.127
2030 68.0 26.128


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



 
 


wds19464%2B3344f.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic