13175-0041 FIN 350

 
 
13h 17m 29.89s -00 40' 33.7" P.A. 6.50 sep 0.1 mag 7.10,7.10 Sp F0V dist. 81.43 pc (265.62 l.y.)
 
 
Coord 2000
13175-0041
Discov num
FIN 350
Comp
Coord arcsec 2000
13 17 29.89 -00 40 33.7
Date first
1959
Date last
2019
Obs
70
Pa first
27
Pa last
350
P.A. Now (θ)
6.5°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.12"
Mag pri
7.10
Mag sec
7.10
delta mag (ΔM)
0
Spectral class
F0V (yellow-white)
Pri motion ra
-069
Sec motion ra
Pri motion dec
-008
Sec motion dec
Notes
N O (See Notes, Orbital solution)
Visually invisible, K-band or other infrared star This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
349.5
Precise sep
0.077
Constellation
Virgo
SAO
139264
HIP
64838
HD
115488
HR
5014
Distance
81.43
Distance ly
265.62
last precise pa
349.5
last precise sep
0.077
 
 
ORBITAL ELEMENTS
 
 
Period (P)9.13y± 0.03 Periastron (T)2017.487y± 0.05 Semi-major axis (a)0.0795a± 0.002
Eccentricity (e)0.622± 0.007 Inclination (i)57°± 0.5 Longitude of periastron (ω)170.8°± 3.5
Node (Ω)18.8°± 1.5 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.031 294.6
2001 0.070 345.6
2002 0.102
2003 0.122 8.4
2004 0.128 15.1
2005 0.122 21.8
2006 0.102 30.2
2007 0.065 45.7
2008 0.023 136.7
2009 0.028 278.3
2010 0.065 342.6
2011 0.099 358.6
2012 0.120 7.4
2013 0.128 14.3
2014 0.124 20.9
2015 0.105 28.9
2016 0.071 42.7
2017 0.024 110.7
2018 0.027 259.7
2019 0.060 339.0
2020 0.095 357.2
2021 0.118 6.5
2022 0.128 13.4
2023 0.125 20.0
2024 0.109 27.7
2025 0.076 40.1
2026 0.028 89.8
2027 0.028 240.8
2028 0.054 334.8
2029 0.091 355.6
2030 0.116 5.5

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






wds13175-0041e.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
13175-0041 FIN 350 2006 52 32 0.1 7.10 7.10 F0V NOD 131729.89-004033.7
13175-0041 FIN 350 2009 53 306 0.0 7.10 7.10 F0V NOD 131729.89-004033.7
13175-0041 FIN 350 2012 59 8 0.1 7.10 7.10 F0V NOD 131729.89-004033.7
13175-0041 FIN 350 2014 61 23 0.1 7.10 7.10 F0V NO 131729.89-004033.7
13175-0041 FIN 350 2017 63 160 0.0 7.10 7.10 F0V NO 131729.89-004033.7
13175-0041 FIN 350 2018 66 296 0.0 7.10 7.10 F0V NO 131729.89-004033.7
13175-0041 FIN 350 2019 70 350 0.1 7.10 7.10 F0V NO 131729.89-004033.7

If you need more information about this double, apply for a data request form to the WDS.
 
 
WDS 13175-0041 FIN 350 : NOTES
 
 
discov_num notes refcode
FIN 350 This binary is comprised of a pair of F0V stars of near-zero magnitude
difference, so there is considerable uncertainty as to whether the
orbit is of short-period/high-eccentricity (P~9yr, e~0.6) or long-
period/low-eccentricity (P~18yr, e~0.0). The rms residuals to the
speckle observations are slightly smaller for the long-period orbit,
but mass sums (a^3/P^2) for the two orbits differ by just 2%,
insufficient to rule out either solution on the basis of plausibility. Hrt1994
(Later speckle observations near periastron appeared to favor a short-
period solution, but this is still uncertain.)
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 3.39 +/- 0.31, 3.27, and 1.45 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
AlW2017 S j Al-Wardat, M.A., Docobo, J.A., Abushattal, A.A. & Campo, P.P. 2017AstBu..72...24A
AlW2017 +orb Astrophys. Bull. 72, 24, 2017
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
Hrt1994 Sc j Hartkopf, W.I., McAlister,H.A., Mason, B.D., Barry, D.J., Turner, N., & Fu, H.-H. 1994AJ....108.2299H
Hrt1994 AJ 108, 2299, 1994
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
 
 
DISCOVERER
 
 
discov author
FIN Finsen, W.S. & Worley, C.E.
FIN Finsen, W.S.

 
 
WDS 13175-0041 FIN 350 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 13175-0041 FIN 350 : MEASURES
 
 
No records found.

 
 
WDS 13175-0041 FIN 350 : Virtual Eyepiece
 
 

13175-0041 A mag 7.1 Sp F0V 13175-0041 B sep 0.0 P.A. 296.10 mag 7.1 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Radius:
 
 
WDS 13175-0041 FIN 350 : Aladin DSS image @ 13h 17m 29.89s -00 40' 33.7"