Coord 2000 | 19436-1528 |
Discov num | BUP 197 |
Comp | Coord arcsec 2000 | 19 43 33.45 -15 28 10.8 |
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Date first | 1910 |
Date last | 2010 |
Obs | 6 |
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Pa first | 129 |
Pa last | 124 |
P.A. Now (θ) | 124° |
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Sep first | 81.8 |
Sep last | 58.6 |
Sep. Now (ρ) | 58.6" |
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Mag pri | 5.49 |
Mag sec | 11.70 |
delta mag (ΔM) | 6.21 |
Spectral class | F5IV (yellow-white) |
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Pri motion ra | +156 |
Sec motion ra | |||||||||
Pri motion dec | -183 |
Sec motion dec | |||||||||
Notes |
Precise pa | 123.5 |
Precise sep | 58.63 |
Constellation | Sagittarius |
SAO | 162931 |
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HIP | 97063 |
Tycho2 | 6299-02606-1 |
HD | 186185 |
HR | 7496 |
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GL | Wo 9666 |
BD | BD-15 5444 |
Distance | 48.92 |
Distance ly | 159.58 |
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last precise pa | 123.5 |
last precise sep | 58.63 |
Period (P) | 1297d (3.55y) | ± 206 | Periastron (T) | 48919d (1992.812y) | ± 370 | Semi-major axis (a) | 17.3m | ± 2.1 |
Eccentricity (e) | 0.38 | ± 0.16 | Inclination (i) | 33° | ± 10 | Longitude of periastron (ω) | 126° | ± 102 |
Node (Ω) | 222° | ± 122 | Note | Grade | 9 | (1=Definitive, 9=Indet.) | ||
Equinox | Last observation | 1991 |
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 |
19436-1528 | BUP 197 | 1960 | 2 | 127 | 70.4 | 5.49 | 11.70 | F5IV | 194333.45-152810.8 | ||
19436-1528 | BUP 197 | 1985 | 3 | 125 | 64.5 | 5.49 | 11.70 | F5IV | 194333.45-152810.8 | ||
19436-1528 | BUP 197 | 2000 | 6 | 125 | 61.2 | 5.49 | 11.70 | F5IV | 194333.45-152810.8 | ||
19436-1528 | BUP 197 | 2010 | 7 | 124 | 58.6 | 5.49 | 11.70 | F5IV | 194333.45-152810.8 |