Coord 2000 | 20248-1943 |
Discov num | HDS2919 |
Comp | Coord arcsec 2000 | 20 24 46.66 -19 42 35.9 |
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Date first | 1991 |
Date last | 2020 |
Obs | 12 |
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Pa first | 66 |
Pa last | 252 |
P.A. Now (θ) | 256.5° |
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Sep first | 0.4 |
Sep last | 0.1 |
Sep. Now (ρ) | 0.1" |
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Mag pri | 9.93 |
Mag sec | 10.72 |
delta mag (ΔM) | 0.79 |
Spectral class | K3V (yellow-orange) |
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Pri motion ra | +043 |
Sec motion ra | |||||||||
Pri motion dec | -011 |
Sec motion dec | |||||||||
Notes | O
(Orbital solution) |
Precise pa | 252.3 |
Precise sep | 0.1 |
Constellation | Capricornus |
SAO | 163540 |
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HIP | 100685 |
Tycho2 | 6337-01640-1 |
Gaia DR2 | 6860285329861972096 |
HD | 194169 |
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BD | BD-20 5925 |
Distance | 54.53 |
Distance ly | 177.88 |
last precise pa | 252.3 |
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last precise sep | 0.1 |
Period (P) | 44.88y | ± 1.47 | Periastron (T) | 2020.99y | ± 0.08 | Semi-major axis (a) | 0.265a | ± 0.003 |
Eccentricity (e) | 0.625 | ± 0.009 | Inclination (i) | 53.6° | ± 1.5 | Longitude of periastron (ω) | 183.5° | ± 4.4 |
Node (Ω) | 74.2° | ± 1.6 | Note | Grade | 3 | (1=Definitive, 9=Indet.) | ||
Equinox | 2000 | Last observation | 2021 |
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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 |
20248-1943 | HDS2919 | 1997 | 3 | 79 | 0.4 | 9.93 | 10.72 | K3V | D | 202446.66-194235.9 | |
20248-1943 | HDS2919 | 2007 | 4 | 92 | 0.3 | 9.93 | 10.72 | K3V | D | 202446.66-194235.9 | |
20248-1943 | HDS2919 | 2013 | 6 | 111 | 0.2 | 9.93 | 10.72 | K3V | 202446.66-194235.9 | ||
20248-1943 | HDS2919 | 2014 | 7 | 119 | 0.2 | 9.93 | 10.72 | K3V | 202446.66-194235.9 | ||
20248-1943 | HDS2919 | 2015 | 8 | 125 | 0.2 | 9.93 | 10.72 | K3V | 202446.66-194235.9 | ||
20248-1943 | HDS2919 | 2017 | 9 | 155 | 0.1 | 9.93 | 10.72 | K3V | O | 202446.66-194235.9 | |
20248-1943 | HDS2919 | 2018 | 10 | 179 | 0.1 | 9.93 | 10.72 | K3V | O | 202446.66-194235.9 | |
20248-1943 | HDS2919 | 2019 | 11 | 215 | 0.1 | 9.93 | 10.72 | K3V | O | 202446.66-194235.9 |