| Coord 2000 | 00209+3259 |
Discov num | AC 1 |
Comp | Coord arcsec 2000 | 00 20 54.10 +32 58 40.9 |
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| Date first | 1859 |
Date last | 2020 |
Obs | 133 |
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| Pa first | 278 |
Pa last | 291 |
P.A. Now (θ) | 288.9° |
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| Sep first | 0.4 |
Sep last | 1.9 |
Sep. Now (ρ) | 1.85" |
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| Mag pri | 7.27 |
Mag sec | 8.26 |
delta mag (ΔM) | 0.99 |
Spectral class | F5V (yellow-white) |
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| Pri motion ra | +006 |
Sec motion ra | +006 |
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| Pri motion dec | -065 |
Sec motion dec | -065 |
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| Notes | O
(Orbital solution) |
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| Precise pa | 290.9 |
Precise sep | 1.911 |
Constellation | Hydra |
SAO | 53827 |
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| HIP | 1669 |
Tycho2 | 2265-01113-1 |
Gaia DR2 | 2863371030285831680 |
HD | 1641 |
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| ADS | 285 |
BD | BD+32 48 |
Distance | 67.93 |
Distance ly | 221.59 |
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| last precise pa | 290.9 |
last precise sep | 1.911 |
| Period (P) | 525y | Periastron (T) | 1820.1y | Semi-major axis (a) | 1.234a | |||
| Eccentricity (e) | 0.6 | Inclination (i) | 84° | Longitude of periastron (ω) | 26.8° | |||
| Node (Ω) | 107.5° | Note | Grade | 4 | (1=Definitive, 9=Indet.) | |||
| Equinox | 2000 | Last observation | 2012 |
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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 |
| 00209+3259 | AC 1 | 2006 | 117 | 291 | 2.0 | 7.27 | 8.26 | F5V | D | 002054.10+325840.9 | |
| 00209+3259 | AC 1 | 2008 | 118 | 288 | 1.8 | 7.27 | 8.26 | F5V | D | 002054.10+325840.9 | |
| 00209+3259 | AC 1 | 2013 | 126 | 287 | 1.9 | 7.27 | 8.26 | F5V | 002054.10+325840.9 | ||
| 00209+3259 | AC 1 | 2015 | 125 | 289 | 1.8 | 7.27 | 8.26 | F5V | O | 002054.10+325840.9 | |
| 00209+3259 | AC 1 | 2016 | 128 | 290 | 1.8 | 7.27 | 8.26 | F5V | O | 002054.10+325840.9 | |
| 00209+3259 | AC 1 | 2018 | 130 | 290 | 1.9 | 7.27 | 8.26 | F5V | O | 002054.10+325840.9 | |
| 00209+3259 | AC 1 | 2020 | 131 | 291 | 1.9 | 7.27 | 8.26 | F5V | O | 002054.10+325840.9 |