Coord 2000 | 00026-0829 |
Discov num | A 428 |
Comp | Coord arcsec 2000 | 00 02 38.92 -08 29 16.6 |
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Date first | 1902 |
Date last | 2018 |
Obs | 44 |
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Pa first | 111 |
Pa last | 295 |
P.A. Now (θ) | 279.1° |
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Sep first | 0.2 |
Sep last | 0.1 |
Sep. Now (ρ) | 0.1" |
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Mag pri | 9.82 |
Mag sec | 10.07 |
delta mag (ΔM) | 0.25 |
Spectral class | G0 (yellow) |
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Pri motion ra | +000 |
Sec motion ra | |||||||||
Pri motion dec | -003 |
Sec motion dec | |||||||||
Notes | O
(Orbital solution) |
Precise pa | 294.6 |
Precise sep | 0.111 |
Constellation | Hydra |
HIP | 210 |
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Tycho2 | 5260-00354-1 |
Gaia DR2 | 2441125824679584896 |
HD | 225015 |
ADS | 4 |
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BD | BD-09 6310 |
Distance | 134.77 |
Distance ly | 439.62 |
last precise pa | 294.6 |
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last precise sep | 0.111 |
Period (P) | 414.95y | ± 20.96 | Periastron (T) | 2005.35y | ± 2.47 | Semi-major axis (a) | 0.505a | ± 0.021 |
Eccentricity (e) | 0.503 | ± 0.013 | Inclination (i) | 111.9° | ± 1.2 | Longitude of periastron (ω) | 226.8° | ± 4.2 |
Node (Ω) | 192.2° | ± 2 | Note | Grade | 4 | (1=Definitive, 9=Indet.) | ||
Equinox | 2000 | Last observation | 2014 |
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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 |
00026-0829 | A 428 | 1991 | 39 | 13 | 0.3 | 9.82 | 10.07 | G0 | NO | 000238.92-082916.6 | |
00026-0829 | A 428 | 2007 | 40 | 345 | 0.2 | 9.82 | 10.07 | G0 | NO | 000238.92-082916.6 | |
00026-0829 | A 428 | 2014 | 42 | 316 | 0.1 | 9.82 | 10.07 | G0 | O | 000238.92-082916.6 | |
00026-0829 | A 428 | 2018 | 43 | 295 | 0.1 | 9.82 | 10.07 | G0 | O | 000238.92-082916.6 |