Coord 2000 | 01337-1213 |
Discov num | HWE 4 |
Comp | Coord arcsec 2000 | 01 33 42.39 -12 12 46.1 |
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Date first | 1877 |
Date last | 2015 |
Obs | 58 |
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Pa first | 328 |
Pa last | 332 |
P.A. Now (θ) | 329.4° |
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Sep first | 0.9 |
Sep last | 0.9 |
Sep. Now (ρ) | 0.86" |
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Mag pri | 9.23 |
Mag sec | 9.31 |
delta mag (ΔM) | 0.08 |
Spectral class | G3V (yellow) |
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Pri motion ra | -011 |
Sec motion ra | -011 |
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Pri motion dec | -009 |
Sec motion dec | -009 |
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Notes |
Precise pa | 331.6 |
Precise sep | 0.86 |
Constellation | Cetus |
SAO | 147882 |
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HIP | 7274 |
Tycho2 | 5279-00225-1 |
Gaia DR2 | 51971919360 |
HD | 9575 |
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ADS | 1223 |
BD | BD-12 286 |
Distance | 66.62 |
Distance ly | 217.31 |
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last precise pa | 331.6 |
last precise sep | 0.86 |
Period (P) | 142.42y | Periastron (T) | 2065.92y | Semi-major axis (a) | 0.571a | |||
Eccentricity (e) | 0.837 | Inclination (i) | 118.6° | Longitude of periastron (ω) | 318.6° | |||
Node (Ω) | 133.7° | Note | Grade | 3 | (1=Definitive, 9=Indet.) | |||
Equinox | 2000 | Last observation | 2014 |
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 |
01337-1213 | HWE 4 | 2003 | 52 | 334 | 0.8 | 9.23 | 9.31 | G3V | NOD | 013342.39-121246.1 | |
01337-1213 | HWE 4 | 2008 | 54 | 333 | 0.9 | 9.23 | 9.31 | G3V | NOD | 013342.39-121246.1 | |
01337-1213 | HWE 4 | 2009 | 55 | 332 | 0.8 | 9.23 | 9.31 | G3V | NOD | 013342.39-121246.1 | |
01337-1213 | HWE 4 | 2013 | 57 | 331 | 0.9 | 9.23 | 9.31 | G3V | NO | 013342.39-121246.1 | |
01337-1213 | HWE 4 | 2015 | 58 | 332 | 0.9 | 9.23 | 9.31 | G3V | NO | 013342.39-121246.1 |