Coord 2000 | 00465-0131 |
Discov num | RST4157 |
Comp | Coord arcsec 2000 | 00 46 31.18 -01 30 31.3 |
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Date first | 1939 |
Date last | 2019 |
Obs | 8 |
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Pa first | 95 |
Pa last | 76 |
P.A. Now (θ) | 77.3° |
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Sep first | 0.3 |
Sep last | 0.1 |
Sep. Now (ρ) | 0.13" |
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Mag pri | 10.00 |
Mag sec | 10.00 |
delta mag (ΔM) | 0 |
Spectral class | G0 (yellow) |
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Pri motion ra | +047 |
Sec motion ra | |||||||||
Pri motion dec | -027 |
Sec motion dec | |||||||||
Notes |
Precise pa | 76.4 |
Precise sep | 0.122 |
Constellation | Cetus |
Tycho2 | 4673-00637-1 |
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Gaia DR2 | 36580943488 |
HD | 4424 |
last precise pa | 76.4 |
last precise sep | 0.122 |
Period (P) | 94.8y | Periastron (T) | 2008.2y | Semi-major axis (a) | 0.161a | |||
Eccentricity (e) | 0.647 | Inclination (i) | 59° | Longitude of periastron (ω) | 200.6° | |||
Node (Ω) | 97.8° | Note | Grade | 4 | (1=Definitive, 9=Indet.) | |||
Equinox | 2000 | Last observation | 2019 |
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 |
00465-0131 | RST4157 | 1986 | 4 | 13 | 0.2 | 10.00 | 10.00 | G0 | 004631.18-013031.3 | ||
00465-0131 | RST4157 | 2008 | 5 | 114 | 0.1 | 10.00 | 10.00 | G0 | 004631.18-013031.3 | ||
00465-0131 | RST4157 | 2015 | 6 | 61 | 0.1 | 10.00 | 10.00 | G0 | 004631.18-013031.3 | ||
00465-0131 | RST4157 | 2018 | 7 | 74 | 0.1 | 10.00 | 10.00 | G0 | 004631.18-013031.3 | ||
00465-0131 | RST4157 | 2019 | 8 | 76 | 0.1 | 10.00 | 10.00 | G0 | 004631.18-013031.3 |