| Coord 2000 | 00310-3138 |
Discov num | HDS 69 |
Comp | Coord arcsec 2000 | 00 31 01.17 -31 38 19.3 |
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| Date first | 1991 |
Date last | 2020 |
Obs | 7 |
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| Pa first | 106 |
Pa last | 96 |
P.A. Now (θ) | 97.1° |
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| Sep first | 0.2 |
Sep last | 0.1 |
Sep. Now (ρ) | 0.13" |
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| Mag pri | 10.45 |
Mag sec | 10.45 |
delta mag (ΔM) | 0 |
Spectral class | F8/G0V (yellow-white) |
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| Pri motion ra | +034 |
Sec motion ra | |||||||||
| Pri motion dec | -189 |
Sec motion dec | |||||||||
| Notes | O
(Orbital solution) |
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| Precise pa | 96.2 |
Precise sep | 0.127 |
Constellation | Hydra |
SAO | 192582 |
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| HIP | 2433 |
Tycho2 | 6991-00695-1 |
Gaia DR2 | 2317410803546673792 |
HD | 2762 |
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| CD | CD-32 163 |
CP | CP-32 52 |
Distance | 124.22 |
Distance ly | 405.21 |
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| last precise pa | 96.2 |
last precise sep | 0.127 |
| Period (P) | 61.2y | Periastron (T) | 2010.9y | Semi-major axis (a) | 0.135a | |||
| Eccentricity (e) | 0.65 | Inclination (i) | 84° | Longitude of periastron (ω) | 198.2° | |||
| Node (Ω) | 100.1° | Note | Grade | 4 | (1=Definitive, 9=Indet.) | |||
| Equinox | 2000 | Last observation | 2021 |
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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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| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 00310-3138 | HDS 69 | 1991 | 1 | 106 | 0.2 | 10.45 | 10.45 | F8/G0V | 003101.17-313819.3 | ||
| 00310-3138 | HDS 69 | 2015 | 2 | 91 | 0.1 | 10.45 | 10.45 | F8/G0V | 003101.17-313819.3 | ||
| 00310-3138 | HDS 69 | 2017 | 4 | 95 | 0.1 | 10.45 | 10.45 | F8/G0V | 003101.17-313819.3 | ||
| 00310-3138 | HDS 69 | 2018 | 5 | 96 | 0.1 | 10.45 | 10.45 | F8/G0V | 003101.17-313819.3 | ||
| 00310-3138 | HDS 69 | 2019 | 6 | 96 | 0.1 | 10.45 | 10.45 | F8/G0V | 003101.17-313819.3 |