13008+1223 BEU 16 AB (DT Vir)
13h 00m 46.58s +12° 22' 32.6" P.A. 60.00 sep 0.5 mag 9.75, Sp M0.5 dist. 11.69 pc (38.13 l.y.)
Coord 2000 |
13008+1223 |
|
Discov num |
BEU 16 |
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Comp |
AB |
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Coord arcsec 2000 |
13 00 46.58 +12 22 32.6 |
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Date first |
2000 |
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Date last |
2015 |
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Obs |
16 |
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Pa first |
81 |
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Pa last |
60 |
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P.A. Now (θ) |
204.1° |
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Sep first |
0.5 |
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Sep last |
0.525 |
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Sep. Now (ρ) |
0.311" |
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Mag pri |
9.75 |
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Mag sec |
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delta mag (ΔM) |
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Spectral class |
M0.5 (red) |
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Pri motion ra |
-619 |
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Sec motion ra |
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Pri motion dec |
-017 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
13008+1223 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
DT Vir |
|
13 00 47 +12 22 33 |
BEU 16 AB |
2015 |
16 |
60 |
0.5 |
9.75 |
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Y |
<=== |
Show |
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13 00 47 +12 22 33 |
GDM 1 AC |
2008 |
3 |
220 |
102.1 |
9.75 |
25.00 |
15.25 |
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Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Var name |
DT Vir |
|
Constellation |
Virgo |
|
HIP |
63510 |
|
Tycho2 |
0886-00839-1 |
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GL |
Gl 494 |
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BD |
BD+13 2618 |
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Distance |
11.69 |
|
Distance ly |
38.13 |
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ORBITAL ELEMENTS
Period (P) | 13.709y | ± 0.037 |
Periastron (T) | 59365d (2021.412y) | ± 18 |
Semi-major axis (a) | 427.73m | ± 0.44 |
Eccentricity (e) | 0.2436 | ± 0.0012 |
Inclination (i) | 130.79° | ± 0.2 |
Longitude of periastron (ω) | 158.81° | ± 0.62 |
Node (Ω) | 56.13° | ± 0.17 |
Notes | n | |
Reference | MnA2019 | |
Equinox | | |
Last observation | | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
80.9 |
0.474 |
2001 |
68.6 |
0.516 |
2002 |
57.4 |
0.522 |
2003 |
45.7 |
0.489 |
2004 |
30.9 |
0.416 |
2005 |
7.9 |
0.317 |
2006 |
326.3 |
0.242 |
2007 |
275.9 |
0.267 |
2008 |
241.4 |
0.323 |
2009 |
213.0 |
0.321 |
2010 |
179.7 |
0.287 |
2011 |
142.0 |
0.292 |
2012 |
111.8 |
0.352 |
2013 |
91.5 |
0.427 |
2014 |
77.1 |
0.489 |
2015 |
65.3 |
0.522 |
2016 |
54.2 |
0.517 |
2017 |
41.8 |
0.472 |
2018 |
25.4 |
0.389 |
2019 |
358.2 |
0.288 |
2020 |
310.8 |
0.238 |
2021 |
264.4 |
0.287 |
2022 |
233.1 |
0.329 |
2023 |
204.1 |
0.311 |
2024 |
168.7 |
0.282 |
2025 |
132.0 |
0.305 |
2026 |
105.0 |
0.374 |
2027 |
86.9 |
0.448 |
2028 |
73.5 |
0.502 |
2029 |
62.1 |
0.524 |
2030 |
50.8 |
0.508 |
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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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