Coord 2000 | 20002-5522 |
Discov num | B 459 |
Comp | BC |
Coord arcsec 2000 | 20 00 14.72 -55 22 25.0 |
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Date first | 1926 |
Date last | 2017 |
Obs | 15 |
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Pa first | 129 |
Pa last | 204 |
P.A. Now (θ) | 212.2° |
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Sep first | 0.3 |
Sep last | 0.3 |
Sep. Now (ρ) | 0.3" |
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Mag pri | 10.98 |
Mag sec | 11.07 |
delta mag (ΔM) | 0.09 |
Spectral class | K1+K1 (yellow-orange/yellow-orange) |
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Pri motion ra | -014 |
Sec motion ra | -014 |
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Pri motion dec | +002 |
Sec motion dec | +002 |
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Notes |
Show | name | SAO | coord_2000 | discov# | comp | first | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 246378 | 20002-5522 | I 1041 | A,BC | 1910 | 2017 | 19 | 41 | 1.4 | 9.69 | 10.20 | 0.51 | |||
Show | 246378 | 20002-5522 | B 459 | BC | 1926 | 2017 | 15 | 212 | 0.3 | 10.98 | 11.07 | 0.09 | Y | <=== |
Precise pa | 204.2 |
Precise sep | 0.284 |
Constellation | Telescopium |
SAO | 246378 |
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HIP | 98457 |
Tycho2 | 8780-00272-1 |
Gaia DR2 | 01202399104 |
HD | 188908 |
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CP | CP-55 9275 |
Distance | 68.78 |
Distance ly | 224.36 |
last precise pa | 204.2 |
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last precise sep | 0.284 |
Period (P) | 72.78y | ± 1.2 | Periastron (T) | 2044.56y | ± 0.5 | Semi-major axis (a) | 0.292a | ± 0.002 |
Eccentricity (e) | 0.229 | ± 0.005 | Inclination (i) | 44.9° | ± 2 | Longitude of periastron (ω) | 278.7° | ± 3 |
Node (Ω) | 64.6° | ± 1 | Note | Grade | 2 | (1=Definitive, 9=Indet.) | ||
Equinox | 2000 | Last observation | 2015 |
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 |
20002-5522 | B 459 | BC | 1991 | 13 | 95 | 0.3 | 10.98 | 11.07 | O | 200014.72-552225.0 | |
20002-5522 | B 459 | BC | 2015 | 14 | 197 | 0.3 | 10.98 | 11.07 | K1IV | NO | 200014.72-552225.0 |
20002-5522 | B 459 | BC | 2017 | 15 | 204 | 0.3 | 10.98 | 11.07 | K1+K1 | NO | 200014.72-552225.0 |