Coord 2000 | 02087-1005 |
Discov num | HU 16 |
Comp | Coord arcsec 2000 | 02 08 42.29 -10 05 18.9 |
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Date first | 1899 |
Date last | 2013 |
Obs | 20 |
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Pa first | 329 |
Pa last | 32 |
P.A. Now (θ) | 53.8° |
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Sep first | 1.1 |
Sep last | 0.9 |
Sep. Now (ρ) | 0.65" |
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Mag pri | 9.30 |
Mag sec | 10.53 |
delta mag (ΔM) | 1.23 |
Spectral class | G5 (yellow) |
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Pri motion ra | +152 |
Sec motion ra | +152 |
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Pri motion dec | -016 |
Sec motion dec | -016 |
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Notes | O
(Orbital solution) |
Constellation | Cetus |
Tycho2 | 5281-02156-1 |
HD | 13191 |
ADS | 1674 |
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last precise pa | 32.3 |
last precise sep | 0.91 |
Period (P) | 485y | Periastron (T) | 1929.62y | Semi-major axis (a) | 1.173a | |||
Eccentricity (e) | 0 | Inclination (i) | 45.4° | Longitude of periastron (ω) | 0° | |||
Node (Ω) | 338.8° | Note | Grade | 5 | (1=Definitive, 9=Indet.) | |||
Equinox | 2000 | Last observation | 2013 |
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 |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
02087-1005 | HU 16 | 1997 | 18 | 29 | 1.1 | 9.30 | 10.53 | G5 | O | 020842.29-100518.9 | |
02087-1005 | HU 16 | 2008 | 19 | 28 | 0.9 | 9.30 | 10.53 | G5 | O | 020842.29-100518.9 | |
02087-1005 | HU 16 | 2013 | 20 | 32 | 0.9 | 9.30 | 10.53 | G5 | O | 020842.29-100518.9 |