Coord 2000 | 00524-6930 |
Discov num | DUN 2 |
Comp | Coord arcsec 2000 | 00 52 24.52 -69 30 13.6 |
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Date first | 1834 |
Date last | 2015 |
Obs | 37 |
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Pa first | 77 |
Pa last | 82 |
P.A. Now (θ) | 15° |
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Sep first | 22.5 |
Sep last | 20.4 |
Sep. Now (ρ) | 91.76" |
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Mag pri | 6.70 |
Mag sec | 7.35 |
delta mag (ΔM) | 0.65 |
Spectral class | F7IV-V (yellow-white) |
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Pri motion ra | +004 |
Sec motion ra | -003 |
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Pri motion dec | -069 |
Sec motion dec | -060 |
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Notes |
Precise pa | 81.5 |
Precise sep | 20.426 |
Name | Lam1 Tuc |
Constellation | Tucana |
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SAO | 248269 |
HIP | 4084 |
Tycho2 | 9135-01891-1 |
Gaia DR2 | 92046507520 |
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HD | 5190 |
HR | 252 |
GC | 1056 |
CD | CD-70 38 |
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CP | CP-70 37 |
Bayer | Lambda 1 Tucanae |
Bayer name | Lam1 Tuc |
Distance | 63.29 |
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Distance ly | 206.45 |
last precise pa | 81.5 |
last precise sep | 20.426 |
Period (P) | 80000y | Periastron (T) | 6100y | ± 800 | Semi-major axis (a) | 170a | ± 11 | |
Eccentricity (e) | 0.74 | ± 0.02 | Inclination (i) | 66.4° | ± 0.5 | Longitude of periastron (ω) | 105° | ± 4 |
Node (Ω) | 14.1° | ± 0.9 | Note | Grade | 5 | (1=Definitive, 9=Indet.) | ||
Equinox | 2000 | 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 |
00524-6930 | DUN 2 | 1998 | 29 | 81 | 20.4 | 6.70 | 7.35 | F7IV-V | N D | 005224.52-693013.6 | |
00524-6930 | DUN 2 | 2008 | 31 | 82 | 20.6 | 6.70 | 7.35 | F7IV-V | NVD | 005224.52-693013.6 | |
00524-6930 | DUN 2 | 2009 | 33 | 82 | 20.4 | 6.70 | 7.35 | F7IV-V | NVD | 005224.52-693013.6 | |
00524-6930 | DUN 2 | 2013 | 35 | 82 | 20.0 | 6.70 | 7.35 | F7IV-V | NVD | 005224.52-693013.6 | |
00524-6930 | DUN 2 | 2015 | 37 | 82 | 20.4 | 6.70 | 7.35 | F7IV-V | NV | 005224.52-693013.6 |