13539-1910 HU  898

 
 
13h 53m 56.44s -19 10' 05.1" P.A. 301.8 sep 0.37 mag 8.70,9.23 Sp F3V dist. 107.64 pc (351.12 l.y.)
 
 
Coord 2000
13539-1910
Discov num
HU  898
Comp
Coord arcsec 2000
13 53 56.44 -19 10 05.1
Date first
1904
Date last
2013
Obs
22
Pa first
136
Pa last
297
P.A. Now (θ)
301.8°
Sep first
0.4
Sep last
0.3
Sep. Now (ρ)
0.37"
Mag pri
8.70
Mag sec
9.23
delta mag (ΔM)
0.53
Spectral class
F3V (yellow-white)
Pri motion ra
-043
Sec motion ra
Pri motion dec
-018
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
297.1
Precise sep
0.35
Constellation
Virgo
SAO
158221
HIP
67859
Tycho2
6144-00162-1
HD
121137
ADS
9043
BD
BD-18 3694
Distance
107.64
Distance ly
351.12
last precise pa
297.1
last precise sep
0.35
 
 
ORBITAL ELEMENTS
 
 
Period (P)128.25y Periastron (T)1984.63y Semi-major axis (a)0.323a
Eccentricity (e)0.783 Inclination (i)38.7° Longitude of periastron (ω)108.9°
Node (Ω)33° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2011
label rho theta
2000 0.255 277.0
2001 0.263 279.1
2002 0.272 281.1
2003 0.280 283.0
2004 0.288 284.7
2005 0.295 286.4
2006 0.302 288.0
2007 0.310 289.5
2008 0.316 291.0
2009 0.323 292.4
2010 0.330 293.7
2011 0.336 295.0
2012 0.342 296.2
2013 0.348 297.4
2014 0.354 298.6
2015 0.360 299.7
2016 0.365 300.8
2017 0.370 301.8
2018 0.375 302.8
2019 0.380 303.8
2020 0.385 304.8
2021 0.390 305.8
2022 0.394 306.7
2023 0.399 307.6
2024 0.403 308.5
2025 0.407 309.3
2026 0.411 310.2
2027 0.415 311.0
2028 0.419 311.8
2029 0.422 312.6
2030 0.426 313.4

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

grafico orbita





wds13539-1910a.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
13539-1910 HU 898 1993 18 257 0.2 8.70 9.23 F3V NO 135356.44-191005.1
13539-1910 HU 898 2008 19 286 0.3 8.70 9.23 F3V NO 135356.44-191005.1
13539-1910 HU 898 2011 20 295 0.3 8.70 9.23 F3V NO 135356.44-191005.1
13539-1910 HU 898 2012 21 296 0.3 8.70 9.23 F3V NO 135356.44-191005.1
13539-1910 HU 898 2013 22 297 0.3 8.70 9.23 F3V NO 135356.44-191005.1

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