20014+1045 STF2613AB

 
 
20h 01m 26.66s +10 44' 54.8" P.A. 355.10 sep 3.5 mag 7.48,8.02 Sp F5V+F5V dist. 80.58 pc (262.85 l.y.)
 
 
Coord 2000
20014+1045
Discov num
STF2613
Comp
AB
Coord arcsec 2000
20 01 26.66 +10 44 54.8
Date first
1828
Date last
2020
Obs
162
Pa first
348
Pa last
354
P.A. Now (θ)
355.1°
Sep first
5.4
Sep last
3.5
Sep. Now (ρ)
3.49"
Mag pri
7.48
Mag sec
8.02
delta mag (ΔM)
0.54
Spectral class
F5V+F5V (yellow-white/yellow-white)
Pri motion ra
+084
Sec motion ra
+084
Pri motion dec
+025
Sec motion dec
+025
Notes
N O (See Notes, Orbital solution)
Visually invisible, K-band or other infrared star This double is physical.
 
 
20014+1045 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 105560 20014+1045 TOK 34 Aa,Ab 2005 2019 7 339 0.2 7.20 10.60 3.40
Show 105560 20014+1045 STF2613 AB 1828 2020 162 355 3.5 7.48 8.02 0.54 Y <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
354.3
Precise sep
3.52
Constellation
Aquila
SAO
105560
HIP
98578
Tycho2
1075-03270-1
Gaia DR2
30575555968
HD
189783
ADS
13256
BD
BD+10 4143
Distance
80.58
Distance ly
262.85
last precise pa
354.3
last precise sep
3.52
 
 
ORBITAL ELEMENTS
 
 
Period (P)2106.0989y± 839.4974 Periastron (T)2220.5498y± 207.1297 Semi-major axis (a)4.54412a± 2.37261
Eccentricity (e)0.65213± 0.25361 Inclination (i)74.956°± 7.741 Longitude of periastron (ω)290.393°± 21.204
Node (Ω)175.719°± 11.983 Note Grade4(1=Definitive, 9=Indet.)
Equinox Last observation2015
label rho theta
2000 3.682 354.0
2001 3.673 354.1
2002 3.664 354.1
2003 3.655 354.2
2004 3.645 354.2
2005 3.636 354.3
2006 3.627 354.3
2007 3.617 354.4
2008 3.608 354.4
2009 3.598 354.5
2010 3.589 354.6
2011 3.579 354.6
2012 3.569 354.7
2013 3.560 354.7
2014 3.550 354.8
2015 3.540 354.8
2016 3.530 354.9
2017 3.520 354.9
2018 3.510 355.0
2019 3.500 355.0
2020 3.490 355.1
2021 3.479 355.2
2022 3.469 355.2
2023 3.459 355.3
2024 3.448 355.3
2025 3.438 355.4
2026 3.427 355.5
2027 3.416 355.5
2028 3.406 355.6
2029 3.395 355.6
2030 3.384 355.7

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






wds20014%2B1045b.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
20014+1045 STF2613 AB 2007 138 354 3.6 7.48 8.02 F5V+F5V NOD 200126.66+104454.8
20014+1045 STF2613 AB 2009 140 354 3.5 7.48 8.02 F5V+F5V NOD 200126.66+104454.8
20014+1045 STF2613 AB 2010 146 354 3.5 7.48 8.02 F5V+F5V NOD 200126.66+104454.8
20014+1045 STF2613 AB 2011 147 355 3.5 7.48 8.02 F5V F5V NOD 200126.66+104454.8
20014+1045 STF2613 AB 2012 147 354 3.6 7.48 8.02 F5V F5V NOD 200126.66+104454.8
20014+1045 STF2613 AB 2013 148 354 3.5 7.48 8.02 F5V+F5V NOD 200126.66+104454.8
20014+1045 STF2613 AB 2015 150 355 3.6 7.48 8.02 F5V+F5V NO 200126.66+104454.8
20014+1045 STF2613 AB 2016 152 355 3.6 7.48 8.02 F5V+F5V NO 200126.66+104454.8
20014+1045 STF2613 AB 2017 157 356 3.5 7.48 8.02 F5V+F5V NO 200126.66+104454.8
20014+1045 STF2613 AB 2019 161 355 3.5 7.48 8.02 F5V+F5V NO 200126.66+104454.8
20014+1045 STF2613 AB 2020 162 354 3.5 7.48 8.02 F5V+F5V NO 200126.66+104454.8

If you need more information about this double, apply for a data request form to the WDS.