| Coord 2000 | 00542+4318 |
Discov num | COU1654 |
Comp | Coord arcsec 2000 | 00 54 11.08 +43 17 54.1 |
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| Date first | 1978 |
Date last | 2008 |
Obs | 21 |
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| Pa first | 107 |
Pa last | 90 |
P.A. Now (θ) | 258.3° |
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| Sep first | 0.2 |
Sep last | 0.4 |
Sep. Now (ρ) | 0.1" |
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| Mag pri | 8.40 |
Mag sec | 8.40 |
delta mag (ΔM) | 0 |
Spectral class | F0 (yellow-white) |
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| Pri motion ra | +012 |
Sec motion ra | |||||||||
| Pri motion dec | -014 |
Sec motion dec | |||||||||
| Notes | O
(Orbital solution) |
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| Precise pa | 90.3 |
Precise sep | 0.413 |
Constellation | Andromeda |
SAO | 36758 |
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| Tycho2 | 2810-00453-1 |
Gaia DR2 | 375705979365736704 |
HD | 5178 |
last precise pa | 90.3 |
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| last precise sep | 0.413 |
| Period (P) | 93y | Periastron (T) | 1918y | Semi-major axis (a) | 0.15a | |||
| Eccentricity (e) | 0.564 | Inclination (i) | 109.7° | Longitude of periastron (ω) | 110° | |||
| Node (Ω) | 91.5° | Note | Grade | 5 | (1=Definitive, 9=Indet.) | |||
| Equinox | 2000 | Last observation | 1995 |
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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 |
| 00542+4318 | COU1654 | 1995 | 19 | 98 | 0.1 | 8.40 | 8.40 | F0 | O | 005411.08+431754.1 | |
| 00542+4318 | COU1654 | 2007 | 20 | 66 | 0.1 | 8.40 | 8.40 | F0 | O | 005411.08+431754.1 | |
| 00542+4318 | COU1654 | 2008 | 21 | 90 | 0.4 | 8.40 | 8.40 | F0 | O | 005411.08+431754.1 |