Coord 2000 | 02572-2458 | Discov num | BU 741 | Comp | AB | Coord arcsec 2000 | 02 57 14.69 -24 58 09.9 | ||||
Date first | 1879 | Date last | 2020 | Obs | 82 | ||||||
Pa first | 158 | Pa last | 5.5 | P.A. Now (θ) | 73.7° | ||||||
Sep first | 0.6 | Sep last | 0.22 | Sep. Now (ρ) | 0.089" | ||||||
Mag pri | 8.06 | Mag sec | 8.20 | delta mag (ΔM) | 0.14 | Spectral class | K1/2V (yellow-orange) | ||||
Pri motion ra | +032 | Sec motion ra | +032 | ||||||||
Pri motion dec | -035 | Sec motion dec | -035 | ||||||||
Notes | N O (See Notes, Orbital solution) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 168181 | 02 57 15 -24 58 10 | BU 741 AB | 2020 | 82 | 6 | 0.2 | 8.06 | 8.20 | 0.14 | Y | <=== | |
Show | HD 18455 | 168181 | 02 57 15 -24 58 10 | S 423 AB,C | 2017 | 36 | 226 | 29.2 | 8.06 | 7.86 | 0.20 | ||
Show | 168180 | 02 57 13 -24 58 30 | BEU 4 Ca,Cb | 2020 | 18 | 274 | 0.0 | 8.24 | 9.30 | 1.06 | Y | ||
Show | 168180 | 02 57 13 -24 58 30 | HDS 379 CD | 1991 | 2 | 173 | 5.1 | 7.86 | 11.88 | 4.02 |
Constellation | Fornax | SAO | 168181 | HIP | 13772 | Tycho2 | 6437-00958-1 | ||||
HD | 18455 | GC | 3559 | ADS | 2242 | GL | Gl 120.1A | ||||
CD | CD-25 1169 | Distance | 22.47 | Distance ly | 73.3 |
Period (P) | 151.3y | Periastron (T) | 1870.6y | Semi-major axis (a) | 1.343a | |||
Eccentricity (e) | 0.54 | Inclination (i) | 81.8° | Longitude of periastron (ω) | 259.7° | |||
Node (Ω) | 163.2° | Notes | n | Reference | Tok2019h | |||
Equinox | 2000 | Last observation | 2019 | Grade | 3 | (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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