| Coord 2000 | 10281+4847 |
Discov num | KUI 50 |
Comp | Coord arcsec 2000 | 10 28 03.88 +48 47 05.6 |
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| Date first | 1939 |
Date last | 2016 |
Obs | 16 |
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| Pa first | 15 |
Pa last | 22 |
P.A. Now (θ) | 18.3° |
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| Sep first | 4.5 |
Sep last | 3.9 |
Sep. Now (ρ) | 4.5" |
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| Mag pri | 6.40 |
Mag sec | 12.60 |
delta mag (ΔM) | 6.2 |
Spectral class | F9V (yellow-white) |
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| Pri motion ra | +083 |
Sec motion ra | +083 |
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| Pri motion dec | -882 |
Sec motion dec | -882 |
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| Notes | O
(Orbital solution) |
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| Precise pa | 22.2 |
Precise sep | 3.95 |
Constellation | Ursa Major |
SAO | 43351 |
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| HIP | 51248 |
Tycho2 | 3438-00194-1 |
HD | 90508 |
HR | 4098 |
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| GL | Gl 392A |
BD | BD+49 1961 |
Distance | 22.91 |
Distance ly | 74.73 |
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| last precise pa | 22.2 |
last precise sep | 3.95 |
| Period (P) | 80.5919y | ± 3.4409 | Periastron (T) | 1981.1102y | ± 5.1743 | Semi-major axis (a) | 8.4573a | ± 3.32265 |
| Eccentricity (e) | 0.99 | ± 0.02207 | Inclination (i) | 95.283° | ± 2.425 | Longitude of periastron (ω) | 284.665° | ± 7.248 |
| Node (Ω) | 178.811° | ± 7.955 | Note | Grade | 5 | (1=Definitive, 9=Indet.) | ||
| Equinox | 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 |
| 10281+4847 | KUI 50 | 2006 | 11 | 21 | 3.6 | 6.44 | 7.38 | F9V | O V | 102803.88+484705.6 | |
| 10281+4847 | KUI 50 | 2012 | 12 | 22 | 4.0 | 6.44 | 7.38 | F9V | O | 102803.88+484705.6 | |
| 10281+4847 | KUI 50 | 2015 | 13 | 22 | 4.0 | 6.40 | 12.60 | F9V | O | 102803.88+484705.6 |