| Coord 2000 | 00366+5609 |
Discov num | A 914 |
Comp | Coord arcsec 2000 | 00 36 33.43 +56 08 32.0 |
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| Date first | 1905 |
Date last | 2019 |
Obs | 36 |
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| Pa first | 77 |
Pa last | 19 |
P.A. Now (θ) | 21.4° |
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| Sep first | 0.3 |
Sep last | 0.4 |
Sep. Now (ρ) | 0.46" |
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| Mag pri | 8.42 |
Mag sec | 9.29 |
delta mag (ΔM) | 0.87 |
Spectral class | F5 (yellow-white) |
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| Pri motion ra | -031 |
Sec motion ra | -031 |
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| Pri motion dec | -005 |
Sec motion dec | -005 |
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| Notes | O
(Orbital solution) |
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| Precise pa | 19 |
Precise sep | 0.43 |
Constellation | Hydra |
SAO | 21557 |
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| HIP | 2886 |
Tycho2 | 3658-00454-1 |
HD | 3304 |
ADS | 504 |
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| BD | BD+55 117 |
Distance | 209.64 |
Distance ly | 683.85 |
last precise pa | 19 |
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| last precise sep | 0.43 |
| Period (P) | 1240.2y | ± 79.4 | Periastron (T) | 2015.1y | ± 80.1 | Semi-major axis (a) | 0.88a | ± 0.084 |
| Eccentricity (e) | 0.477 | ± 0.043 | Inclination (i) | 109.4° | ± 2.1 | Longitude of periastron (ω) | 4.4° | ± 3.3 |
| Node (Ω) | 24.7° | ± 2.9 | Note | Grade | 4 | (1=Definitive, 9=Indet.) | ||
| Equinox | 2000 | Last observation | 2005 |
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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 |
| 00366+5609 | A 914 | 2005 | 32 | 25 | 0.5 | 8.42 | 9.29 | F5 | D | 003633.43+560832.0 | |
| 00366+5609 | A 914 | 2007 | 33 | 23 | 0.4 | 8.42 | 9.29 | F5 | D | 003633.43+560832.0 | |
| 00366+5609 | A 914 | 2016 | 34 | 21 | 0.5 | 8.42 | 9.29 | F5 | O | 003633.43+560832.0 |