Coord 2000 | 18455+0530 | Discov num | FIN 332 | Comp | Aa,Ab | Coord arcsec 2000 | 18 45 28.36 +05 30 00.4 | ||||
Date first | 1953 | Date last | 2021 | Obs | 75 | ||||||
Pa first | 317 | Pa last | 141.7 | P.A. Now (θ) | 339.6° | ||||||
Sep first | 0.2 | Sep last | 0.014 | Sep. Now (ρ) | 0.032" | ||||||
Mag pri | 6.91 | Mag sec | 7.31 | delta mag (ΔM) | 0.4 | Spectral class | A1V+A1V (white/white) | ||||
Pri motion ra | -005 | Sec motion ra | |||||||||
Pri motion dec | +003 | Sec motion dec | |||||||||
Notes | N O (See Notes, Orbital solution) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 123886 | 18 45 28 +05 30 00 | FIN 332 Aa,Ab | 2021 | 75 | 142 | 0.0 | 6.91 | 7.31 | 0.40 | Y | <=== | |
Show | HD 173495 | 123886 | 18 45 28 +05 30 00 | STF 2375 AB | 2019 | 307 | 120 | 2.6 | 6.34 | 6.73 | 0.39 | Y | |
Show | 123886 | 18 45 28 +05 30 00 | FIN 332 Ba,Bb | 2021 | 58 | 324 | 0.1 | 7.48 | 7.48 | 0.00 | Y |
Constellation | Serpens | SAO | 123886 | HIP | 92027 | Tycho2 | 0456-01022-2 | ||||
Gaia DR2 | 4285283042432285568 | HD | 173495 | HR | 7048 | ADS | 11640 | ||||
BD | BD+05 3941 | Distance | 188.68 | Distance ly | 615.47 |
Period (P) | 27.62y | ± 0.16 | Periastron (T) | 1994y | ± 0.23 | Semi-major axis (a) | 0.0911a | ± 0.0009 |
Eccentricity (e) | 0.82 | ± 0.012 | Inclination (i) | 107.9° | ± 1.2 | Longitude of periastron (ω) | 4.6° | ± 4.1 |
Node (Ω) | 136° | ± 1.2 | Notes | n | Reference | Tok2020k | ||
Equinox | Last observation | Grade | 2 | (1=Definitive, 9=Indet.) |
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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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