14567-6247 FIN 372 (The Cir)
14h 56m 43.98s -62° 46' 51.6" P.A. 280.00 sep 0.1 mag 5.90,5.90 Sp B4Vnpe dist. 462.96 pc (1510.18 l.y.)
Coord 2000 |
14567-6247 |
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Discov num |
FIN 372 |
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Comp |
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Coord arcsec 2000 |
14 56 43.98 -62 46 51.6 |
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Date first |
1960 |
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Date last |
2021 |
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Obs |
20 |
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Pa first |
96 |
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Pa last |
280.4 |
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P.A. Now (θ) |
283.1° |
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Sep first |
0.1 |
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Sep last |
0.088 |
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Sep. Now (ρ) |
0.088" |
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Mag pri |
5.90 |
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Mag sec |
5.90 |
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delta mag (ΔM) |
0 |
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Spectral class |
B4Vnpe (blue-white) |
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Pri motion ra |
-012 |
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Sec motion ra |
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Pri motion dec |
-006 |
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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.
OTHER CATALOGS AND DESIGNATIONS
Name |
The Cir |
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Constellation |
Circinus |
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SAO |
252965 |
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HIP |
73129 |
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Tycho2 |
9024-01862-1 |
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Gaia DR2 |
5874471485134725632 |
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HD |
131492 |
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HR |
5551 |
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GC |
20067 |
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CP |
CP-62 4337 |
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Bayer |
Theta Circini |
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Bayer name |
The Cir |
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Distance |
462.96 |
|
Distance ly |
1510.18 |
|
Bayer greek |
θ Cir |
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ORBITAL ELEMENTS
Period (P) | 39.62y | ± 0.78 |
Periastron (T) | 1993.81y | ± 0.12 |
Semi-major axis (a) | 0.08564a | ± 0.00056 |
Eccentricity (e) | 0.3041 | ± 0.0081 |
Inclination (i) | 153.3° | ± 2 |
Longitude of periastron (ω) | 68.6° | ± 6.5 |
Node (Ω) | 228° | ± 5.2 |
Notes | n | |
Reference | Msn2010c | |
Equinox | 2000 | |
Last observation | 2009 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
66.7 |
0.077 |
2001 |
57.7 |
0.082 |
2002 |
49.8 |
0.086 |
2003 |
42.5 |
0.090 |
2004 |
35.8 |
0.094 |
2005 |
29.5 |
0.096 |
2006 |
23.5 |
0.098 |
2007 |
17.8 |
0.100 |
2008 |
12.2 |
0.101 |
2009 |
6.7 |
0.102 |
2010 |
1.3 |
0.103 |
2011 |
355.9 |
0.103 |
2012 |
350.5 |
0.102 |
2013 |
345.1 |
0.102 |
2014 |
339.6 |
0.101 |
2015 |
334.0 |
0.100 |
2016 |
328.3 |
0.099 |
2017 |
322.4 |
0.098 |
2018 |
316.4 |
0.096 |
2019 |
310.2 |
0.095 |
2020 |
303.9 |
0.093 |
2021 |
297.2 |
0.092 |
2022 |
290.3 |
0.090 |
2023 |
283.1 |
0.088 |
2024 |
275.6 |
0.086 |
2025 |
267.7 |
0.083 |
2026 |
259.2 |
0.081 |
2027 |
250.2 |
0.078 |
2028 |
240.3 |
0.074 |
2029 |
229.5 |
0.070 |
2030 |
217.4 |
0.066 |
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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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