Coord 2000 | 00569-5153 |
Discov num | B 1418 |
Comp | Coord arcsec 2000 | 00 56 55.38 -51 52 32.0 |
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Date first | 1928 |
Date last | 2019 |
Obs | 12 |
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Pa first | 100 |
Pa last | 317 |
P.A. Now (θ) | 14.1° |
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Sep first | 0.3 |
Sep last | 0.0 |
Sep. Now (ρ) | 0.02" |
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Mag pri | 9.77 |
Mag sec | 10.02 |
delta mag (ΔM) | 0.25 |
Spectral class | K3/4V (yellow-orange) |
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Pri motion ra | +096 |
Sec motion ra | |||||||||
Pri motion dec | -007 |
Sec motion dec | |||||||||
Notes | O
(Orbital solution) |
Precise pa | 317 |
Precise sep | 0.032 |
Var name | BW Phe |
Constellation | Phoenix |
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SAO | 232234 |
HIP | 4448 |
Tycho2 | 8037-00492-1 |
Gaia DR2 | 33108236416 |
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HD | 5578 |
CP | CP-52 125 |
Distance | 40.63 |
Distance ly | 132.54 |
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last precise pa | 317 |
last precise sep | 0.032 |
Period (P) | 19.82y | ± 0.54 | Periastron (T) | 2015.44y | ± 0.2 | Semi-major axis (a) | 0.227a | ± 0.012 |
Eccentricity (e) | 0.404 | ± 0.054 | Inclination (i) | 85.8° | ± 0.6 | Longitude of periastron (ω) | 323.3° | ± 7.3 |
Node (Ω) | 279.8° | ± 0.5 | Note | Grade | 2 | (1=Definitive, 9=Indet.) | ||
Equinox | Last observation | 2018 |
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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coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
00569-5153 | B 1418 | 1991 | 5 | 93 | 0.2 | 9.77 | 10.02 | K3/4V | 005655.38-515232.0 | ||
00569-5153 | B 1418 | 2015 | 7 | 279 | 0.1 | 9.77 | 10.02 | K3/4V | 005655.38-515232.0 | ||
00569-5153 | B 1418 | 2017 | 9 | 284 | 0.1 | 9.77 | 10.02 | K3/4V | 005655.38-515232.0 | ||
00569-5153 | B 1418 | 2018 | 10 | 290 | 0.1 | 9.77 | 10.02 | K3/4V | 005655.38-515232.0 | ||
00569-5153 | B 1418 | 2019 | 12 | 317 | 0.0 | 9.77 | 10.02 | K3/4V | O | 005655.38-515232.0 |