Coord 2000 | 01361-2954 |
Discov num | HJ 3447 |
Comp | Coord arcsec 2000 | 01 36 08.50 -29 54 26.5 |
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Date first | 1835 |
Date last | 2019 |
Obs | 119 |
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Pa first | 254 |
Pa last | 198 |
P.A. Now (θ) | 198.8° |
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Sep first | 3.0 |
Sep last | 0.8 |
Sep. Now (ρ) | 0.82" |
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Mag pri | 5.97 |
Mag sec | 7.35 |
delta mag (ΔM) | 1.38 |
Spectral class | F2V (yellow-white) |
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Pri motion ra | +105 |
Sec motion ra | +105 |
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Pri motion dec | +038 |
Sec motion dec | +038 |
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Notes |
Precise pa | 197.9 |
Precise sep | 0.822 |
Name | Tau Scl |
Constellation | Sculptor |
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SAO | 193201 |
HIP | 7463 |
Tycho2 | 6428-02436-1 |
Gaia DR2 | 91741784064 |
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HD | 9906 |
HR | 462 |
GC | 1947 |
CD | CD-30 540 |
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CP | CP-30 186 |
Bayer | Tau Sculptoris |
Bayer name | Tau Scl |
Distance | 69.35 |
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Distance ly | 226.22 |
last precise pa | 197.9 |
last precise sep | 0.822 |
Period (P) | 679.9164y | ± 280.5184 | Periastron (T) | 2049.609y | ± 11.3345 | Semi-major axis (a) | 2.73159a | ± 0.85307 |
Eccentricity (e) | 0.75614 | ± 0.17019 | Inclination (i) | 67.832° | ± 9.489 | Longitude of periastron (ω) | 220.95° | ± 28.609 |
Node (Ω) | 50.738° | ± 8.08 | Note | Grade | 4 | (1=Definitive, 9=Indet.) | ||
Equinox | 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 |
01361-2954 | HJ 3447 | 2007 | 99 | 180 | 0.8 | 5.97 | 7.35 | F2V | NOD | 013608.50-295426.5 | |
01361-2954 | HJ 3447 | 2008 | 103 | 182 | 0.8 | 5.97 | 7.35 | F2V | NOD | 013608.50-295426.5 | |
01361-2954 | HJ 3447 | 2010 | 105 | 185 | 0.8 | 5.97 | 7.35 | F2V | NOD | 013608.50-295426.5 | |
01361-2954 | HJ 3447 | 2011 | 109 | 185 | 0.8 | 5.97 | 7.35 | F2V | NOD | 013608.50-295426.5 | |
01361-2954 | HJ 3447 | 2015 | 113 | 191 | 0.8 | 5.97 | 7.35 | F2V | NO | 013608.50-295426.5 | |
01361-2954 | HJ 3447 | 2016 | 116 | 195 | 0.8 | 5.97 | 7.35 | F2V | NO | 013608.50-295426.5 | |
01361-2954 | HJ 3447 | 2018 | 118 | 197 | 0.8 | 5.97 | 7.35 | F2V | NO | 013608.50-295426.5 | |
01361-2954 | HJ 3447 | 2019 | 119 | 198 | 0.8 | 5.97 | 7.35 | F2V | NO | 013608.50-295426.5 |