Coord 2000 | 00315-6257 | Discov num | I 260 | Comp | CD | Coord arcsec 2000 | 00 31 33.36 -62 57 55.6 | ||||
Date first | 1895 | Date last | 2021 | Obs | 79 | ||||||
Pa first | 335 | Pa last | 330.3 | P.A. Now (θ) | 324.1° | ||||||
Sep first | 0.6 | Sep last | 0.405 | Sep. Now (ρ) | 0.425" | ||||||
Mag pri | 4.60 | Mag sec | 6.54 | delta mag (ΔM) | 1.94 | Spectral class | A2V+A7V (white/white) | ||||
Pri motion ra | +095 | Sec motion ra | +095 | ||||||||
Pri motion dec | -049 | Sec motion dec | -049 | ||||||||
Notes | N O V (See Notes, Orbital solution, Proper motion indicates physical) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 248201 | 00 31 33 -62 57 29 | B 7 AB | 1932 | 2 | 153 | 2.6 | 4.36 | 13.50 | 9.14 | |||
Show | Bet1 Tuc | 248201 | 00 31 33 -62 57 29 | LCL 119 AC | 2021 | 54 | 168 | 27.1 | 4.28 | 4.51 | 0.23 | ||
Show | 248201 | 00 31 33 -62 57 29 | SHY 114 AE | 2000 | 4 | 118 | 548.9 | 4.28 | 5.07 | 0.79 | |||
Show | 248201 | 00 31 33 -62 57 29 | SHY 114 AF | 2000 | 3 | 20 | 999.9 | 4.28 | 9.66 | 5.38 | |||
Show | 248201 | 00 31 33 -62 57 29 | SHY 114 AG | 2000 | 3 | 251 | 999.9 | 4.28 | 7.52 | 3.24 | |||
Show | 248202 | 00 31 33 -62 57 56 | I 260 CD | 2021 | 79 | 330 | 0.4 | 4.60 | 6.54 | 1.94 | Y | <=== | |
Show | 248208 | 00 32 44 -63 01 53 | B 8 Ea,Eb | 1964 | 24 | 171 | 0.1 | 5.80 | 6.00 | 0.20 | |||
Show | 248208 | 00 32 44 -63 01 53 | SHY 116 EF | 2000 | 4 | 12 | 999.9 | 5.07 | 9.66 | 4.59 | |||
Show | 248208 | 00 32 44 -63 01 53 | SHY 116 EH | 2000 | 4 | 330 | 999.9 | 5.07 | 11.57 | 6.50 | |||
Show | 248159 | 00 34 51 -61 54 58 | SHY 113 FG | 2015 | 4 | 230 | 999.9 | 9.66 | 7.52 | 2.14 | |||
Show | 00 34 51 -61 54 58 | SHY 117 FH | 2015 | 4 | 289 | 999.9 | 9.66 | 11.57 | 1.91 | ||||
Show | 00 34 51 -61 54 58 | SHY 117 FI | 2000 | 3 | 258 | 999.9 | 9.66 | 11.53 | 1.87 | ||||
Show | 248159 | 00 18 26 -63 28 39 | SHY 113 GH | 2015 | 4 | 22 | 999.9 | 7.52 | 11.57 | 4.05 | |||
Show | 248159 | 00 18 26 -63 28 39 | CVN 33 GI | 2006 | 1 | 233 | 10.2 | 6.15 | 19.60 | 13.45 |
Constellation | Tucana | SAO | 248202 | HIP | 2487 | Tycho2 | 8844-01520-1 | ||||
Gaia DR2 | 4900926678262376704 | HD | 2885 | HR | 127 | GC | 626 | ||||
Bayer | Beta 2 Tucanae | Bayer name | Bet2 Tuc | Distance | 51.65 | Distance ly | 168.48 | ||||
Bayer greek | β2 Tuc |
Period (P) | 44.73y | ± 0.34 | Periastron (T) | 2011.62y | ± 0.01 | Semi-major axis (a) | 0.495a | ± 0.001 |
Eccentricity (e) | 0.81 | ± 0.001 | Inclination (i) | 124.7° | ± 0.3 | Longitude of periastron (ω) | 112.2° | ± 0.2 |
Node (Ω) | 241.6° | ± 0.2 | Notes | n | Reference | Tok2015c | ||
Equinox | 2000 | Last observation | 2014 | Grade | 2 | (1=Definitive, 9=Indet.) |
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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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