Coord 2000 | 14330-4224 |
Discov num | HDS2054 |
Comp | Coord arcsec 2000 | 14 32 57.08 -42 24 19.5 |
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Date first | 1991 |
Date last | 2020 |
Obs | 15 |
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Pa first | 1 |
Pa last | 24 |
P.A. Now (θ) | 22° |
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Sep first | 0.2 |
Sep last | 0.1 |
Sep. Now (ρ) | 0.1" |
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Mag pri | 8.39 |
Mag sec | 8.89 |
delta mag (ΔM) | 0.5 |
Spectral class | A7/A8IV (white) |
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Pri motion ra | -021 |
Sec motion ra | |||||||||
Pri motion dec | -018 |
Sec motion dec | |||||||||
Notes | O
(Orbital solution) |
Precise pa | 24.3 |
Precise sep | 0.099 |
Constellation | Hydra |
SAO | 225011 |
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HIP | 71140 |
Tycho2 | 7814-01676-1 |
Gaia DR2 | 6103008619062376192 |
HD | 127498 |
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CD | CD-41 8864 |
CP | CP-41 6817 |
Distance | 129.03 |
Distance ly | 420.9 |
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last precise pa | 24.3 |
last precise sep | 0.099 |
Period (P) | 66.5y | ± 22.2 | Periastron (T) | 1997.84y | ± 2.36 | Semi-major axis (a) | 0.207a | ± 0.049 |
Eccentricity (e) | 0.8 | Inclination (i) | 97.5° | ± 1.6 | Longitude of periastron (ω) | 116° | ± 6 | |
Node (Ω) | 356.7° | ± 2.2 | Note | Grade | 4 | (1=Definitive, 9=Indet.) | ||
Equinox | 2000 | Last observation |
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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 |
14330-4224 | HDS2054 | 1991 | 1 | 1 | 0.2 | 8.39 | 8.89 | A7/A8IV | 143257.08-422419.5 | ||
14330-4224 | HDS2054 | 2009 | 3 | 108 | 0.0 | 8.39 | 8.89 | A7/A8IV | 143257.08-422419.5 | ||
14330-4224 | HDS2054 | 2013 | 4 | 234 | 0.0 | 8.39 | 8.89 | A7/A8IV | 143257.08-422419.5 | ||
14330-4224 | HDS2054 | 2014 | 5 | 44 | 0.1 | 8.39 | 8.89 | A7/A8IV | 143257.08-422419.5 | ||
14330-4224 | HDS2054 | 2015 | 6 | 39 | 0.1 | 8.39 | 8.89 | A7/A8IV | 143257.08-422419.5 | ||
14330-4224 | HDS2054 | 2017 | 12 | 31 | 0.1 | 8.39 | 8.89 | A7/A8IV | 143257.08-422419.5 | ||
14330-4224 | HDS2054 | 2018 | 13 | 29 | 0.1 | 8.39 | 8.89 | A7/A8IV | O | 143257.08-422419.5 | |
14330-4224 | HDS2054 | 2019 | 14 | 26 | 0.1 | 8.39 | 8.89 | A7/A8IV | O | 143257.08-422419.5 |