Coord 2000 | 00210+6740 |
Discov num | HJ 1018 |
Comp | Coord arcsec 2000 | 00 20 57.23 +67 40 03.0 |
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Date first | 1828 |
Date last | 2020 |
Obs | 92 |
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Pa first | 84 |
Pa last | 87 |
P.A. Now (θ) | 87.7° |
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Sep first | 1.5 |
Sep last | 1.5 |
Sep. Now (ρ) | 1.62" |
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Mag pri | 8.57 |
Mag sec | 8.89 |
delta mag (ΔM) | 0.32 |
Spectral class | G5 (yellow) |
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Pri motion ra | +027 |
Sec motion ra | +027 |
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Pri motion dec | +078 |
Sec motion dec | +078 |
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Notes |
Precise pa | 87 |
Precise sep | 1.529 |
Constellation | Hydra |
SAO | 11124 |
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HIP | 1674 |
Tycho2 | 4294-00406-1 |
Gaia DR2 | 528767648745379200 |
HD | 1624 |
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ADS | 283 |
BD | BD+66 19 |
Distance | 31.74 |
Distance ly | 103.54 |
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last precise pa | 87 |
last precise sep | 1.529 |
Period (P) | 154.2328y | ± 3.6474 | Periastron (T) | 1942.7553y | ± 1.6671 | Semi-major axis (a) | 0.97822a | ± 0.05546 |
Eccentricity (e) | 0.91379 | ± 0.02389 | Inclination (i) | 88.271° | ± 1.571 | Longitude of periastron (ω) | 210.113° | ± 10.154 |
Node (Ω) | 86.735° | ± 1.129 | Note | Grade | 4 | (1=Definitive, 9=Indet.) | ||
Equinox | Last observation | 2015 |
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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 |
00210+6740 | HJ 1018 | 2006 | 87 | 88 | 1.6 | 8.57 | 8.89 | G5 | NOD | 002057.23+674003.0 | |
00210+6740 | HJ 1018 | 2009 | 88 | 89 | 1.8 | 8.57 | 8.89 | G5 | NOD | 002057.23+674003.0 | |
00210+6740 | HJ 1018 | 2014 | 88 | 86 | 1.7 | 8.57 | 8.89 | G5 | NO | 002057.23+674003.0 | |
00210+6740 | HJ 1018 | 2015 | 89 | 88 | 1.7 | 8.57 | 8.89 | G5 | NO | 002057.23+674003.0 | |
00210+6740 | HJ 1018 | 2016 | 92 | 89 | 1.7 | 8.57 | 8.89 | G5 | NO | 002057.23+674003.0 | |
00210+6740 | HJ 1018 | 2020 | 90 | 87 | 1.5 | 8.57 | 8.89 | G5 | NO | 002057.23+674003.0 |