| Coord 2000 | 00008+1659 |
Discov num | BAG 18 |
Comp | Coord arcsec 2000 | 00 00 48.09 +16 59 17.5 |
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| Date first | 2001 |
Date last | 2019 |
Obs | 10 |
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| Pa first | 37 |
Pa last | 334 |
P.A. Now (θ) | 330° |
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| Sep first | 0.5 |
Sep last | 0.7 |
Sep. Now (ρ) | 0.73" |
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| Mag pri | 8.79 |
Mag sec | 12.60 |
delta mag (ΔM) | 3.81 |
Spectral class | K0 (yellow-orange) |
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| Pri motion ra | -100 |
Sec motion ra | |||||||||
| Pri motion dec | -316 |
Sec motion dec | |||||||||
| Notes | O
(Orbital solution) |
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| Precise pa | 333.9 |
Precise sep | 0.72 |
Constellation | Hydra |
SAO | 108960 |
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| HIP | 68 |
Tycho2 | 1178-01142-1 |
HD | 224808 |
BD | BD+16 5027 |
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| Distance | 31.59 |
Distance ly | 103.05 |
last precise pa | 333.9 |
last precise sep | 0.72 |
| Period (P) | 66.62y | Periastron (T) | 1990.25y | Semi-major axis (a) | 0.531a | |||
| Eccentricity (e) | 0.372 | Inclination (i) | 167.7° | Longitude of periastron (ω) | 358.9° | |||
| Node (Ω) | 142.2° | Note | Grade | 5 | (1=Definitive, 9=Indet.) | |||
| Equinox | Last observation | 2018 |
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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 |
| 00008+1659 | BAG 18 | 2001 | 1 | 37 | 0.5 | 8.79 | 12.60 | D | 000048.09+165917.5 | ||
| 00008+1659 | BAG 18 | 2008 | 3 | 187 | 0.6 | 8.79 | 12.60 | D | 000048.09+165917.5 | ||
| 00008+1659 | BAG 18 | 2010 | 5 | 1 | 0.6 | 8.79 | 12.60 | K0 | D | 000048.09+165917.5 | |
| 00008+1659 | BAG 18 | 2015 | 6 | 344 | 0.7 | 8.79 | 12.60 | K0 | 000048.09+165917.5 | ||
| 00008+1659 | BAG 18 | 2018 | 8 | 336 | 0.7 | 8.79 | 12.60 | K0 | 000048.09+165917.5 | ||
| 00008+1659 | BAG 18 | 2019 | 9 | 334 | 0.7 | 8.79 | 12.60 | K0 | O | 000048.09+165917.5 |