| Coord 2000 | 00003-4417 |
Discov num | I 1477 |
Comp | Coord arcsec 2000 | 00 00 19.10 -44 17 26.0 |
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| Date first | 1926 |
Date last | 2001 |
Obs | 31 |
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| Pa first | 261 |
Pa last | 327 |
P.A. Now (θ) | 130° |
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| Sep first | 0.5 |
Sep last | 0.3 |
Sep. Now (ρ) | 0.35" |
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| Mag pri | 6.80 |
Mag sec | 7.56 |
delta mag (ΔM) | 0.76 |
Spectral class | G3IV (yellow) |
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| Pri motion ra | +062 |
Sec motion ra | +062 |
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| Pri motion dec | -107 |
Sec motion dec | -107 |
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| Notes | O
(Orbital solution) |
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| Precise pa | 326.5 |
Precise sep | 0.312 |
Constellation | Hydra |
SAO | 231888 |
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| HIP | 25 |
Tycho2 | 7529-00356-1 |
Gaia DR2 | 4994581292009978112 |
HD | 224750 |
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| HR | 9077 |
CD | CD-4415420 |
CP | CP-4410394 |
Distance | 81.37 |
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| Distance ly | 265.43 |
last precise pa | 326.5 |
last precise sep | 0.312 |
| Period (P) | 384.1y | ± 22.5 | Periastron (T) | 2008.2y | ± 14.9 | Semi-major axis (a) | 1.023a | ± 0.096 |
| Eccentricity (e) | 0.703 | ± 0.056 | Inclination (i) | 75.3° | ± 2.4 | Longitude of periastron (ω) | 246.5° | ± 3.1 |
| Node (Ω) | 141.6° | ± 1.9 | Note | Grade | 5 | (1=Definitive, 9=Indet.) | ||
| Equinox | 2000 | Last observation | 2001 |
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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 |
| 00003-4417 | I 1477 | 2001 | 31 | 330 | 0.3 | 6.80 | 7.56 | G3IV | OD | 000019.10-441726.0 |