13461+0507 STF 1781 AB (HT Vir)
13h 46m 06.75s +05° 06' 56.1" P.A. 198.00 sep 1.1 mag 7.89,8.10 Sp F8V+F0 dist. 46.38 pc (151.29 l.y.)
Coord 2000 |
13461+0507 |
|
Discov num |
STF1781 |
|
Comp |
AB |
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Coord arcsec 2000 |
13 46 06.75 +05 06 56.1 |
|
Date first |
1830 |
|
Date last |
2020 |
|
Obs |
298 |
|
Pa first |
240 |
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Pa last |
197.6 |
|
P.A. Now (θ) |
200.3° |
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Sep first |
1.4 |
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Sep last |
1.067 |
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Sep. Now (ρ) |
1.07" |
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Mag pri |
7.89 |
|
Mag sec |
8.10 |
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delta mag (ΔM) |
0.21 |
|
Spectral class |
F8V+F0 (yellow-white/yellow-white) |
|
Pri motion ra |
-103 |
|
Sec motion ra |
-103 |
|
Pri motion dec |
-035 |
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Sec motion dec |
-035 |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
13461+0507 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HT Vir |
120102 |
13 46 07 +05 06 56 |
STF 1781 AB |
2020 |
298 |
198 |
1.1 |
7.89 |
8.10 |
0.21 |
Y |
<=== |
Show |
|
120102 |
13 46 07 +05 06 56 |
TOK 568 AC |
2015 |
6 |
128 |
999.9 |
7.34 |
9.76 |
2.42 |
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Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Var name |
HT Vir |
|
Constellation |
Virgo |
|
SAO |
120102 |
|
HIP |
67186 |
|
Tycho2 |
0314-01342-1 |
|
Gaia DR2 |
3714227557974504576 |
|
HD |
119931 |
|
GC |
18609 |
|
ADS |
9019 |
|
BD |
BD+05 2794 |
|
Distance |
46.38 |
|
Distance ly |
151.29 |
|
ORBITAL ELEMENTS
Period (P) | 253.7049y | ± 5.6027 |
Periastron (T) | 1976.2178y | ± 0.1619 |
Semi-major axis (a) | 1.00383a | ± 0.00985 |
Eccentricity (e) | 0.63185 | ± 0.00601 |
Inclination (i) | 44.45° | ± 0.727 |
Longitude of periastron (ω) | 250.326° | ± 1.05 |
Node (Ω) | 179.465° | ± 0.942 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
178.8 |
0.757 |
2001 |
180.2 |
0.776 |
2002 |
181.4 |
0.794 |
2003 |
182.7 |
0.812 |
2004 |
183.8 |
0.830 |
2005 |
185.0 |
0.846 |
2006 |
186.1 |
0.862 |
2007 |
187.1 |
0.878 |
2008 |
188.1 |
0.893 |
2009 |
189.1 |
0.908 |
2010 |
190.0 |
0.922 |
2011 |
191.0 |
0.936 |
2012 |
191.8 |
0.949 |
2013 |
192.7 |
0.962 |
2014 |
193.6 |
0.974 |
2015 |
194.4 |
0.986 |
2016 |
195.2 |
0.998 |
2017 |
196.0 |
1.009 |
2018 |
196.7 |
1.020 |
2019 |
197.5 |
1.031 |
2020 |
198.2 |
1.041 |
2021 |
198.9 |
1.051 |
2022 |
199.7 |
1.061 |
2023 |
200.3 |
1.070 |
2024 |
201.0 |
1.079 |
2025 |
201.7 |
1.088 |
2026 |
202.4 |
1.096 |
2027 |
203.0 |
1.105 |
2028 |
203.7 |
1.112 |
2029 |
204.3 |
1.120 |
2030 |
204.9 |
1.127 |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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