Coord 2000 | 01556+0146 |
Discov num | BU 1367 |
Comp | Coord arcsec 2000 | 01 55 33.97 +01 45 56.9 |
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Date first | 1904 |
Date last | 2001 |
Obs | 24 |
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Pa first | 30 |
Pa last | 89 |
P.A. Now (θ) | 109.4° |
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Sep first | 0.9 |
Sep last | 0.6 |
Sep. Now (ρ) | 0.73" |
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Mag pri | 10.44 |
Mag sec | 10.71 |
delta mag (ΔM) | 0.27 |
Spectral class | K2 (yellow-orange) |
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Pri motion ra | -002 |
Sec motion ra | -002 |
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Pri motion dec | -017 |
Sec motion dec | -017 |
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Notes |
Precise pa | 89.3 |
Precise sep | 0.61 |
Constellation | Cetus |
Tycho2 | 0030-00736-1 |
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Gaia DR2 | 83441853824 |
ADS | 1533 |
last precise pa | 89.3 |
last precise sep | 0.61 |
Period (P) | 882.5951y | ± 507.1726 | Periastron (T) | 1884.0678y | ± 31.8613 | Semi-major axis (a) | 3.7532a | ± 2.38687 |
Eccentricity (e) | 0.88304 | ± 0.12481 | Inclination (i) | 80.859° | ± 10.007 | Longitude of periastron (ω) | 291.812° | ± 27.663 |
Node (Ω) | 19.732° | ± 10.395 | Note | Grade | 5 | (1=Definitive, 9=Indet.) | ||
Equinox | Last observation | 2001 |
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 |
01556+0146 | BU 1367 | 2001 | 24 | 89 | 0.6 | 10.44 | 10.71 | K2 | N | 015533.97+014556.9 |