Coord 2000 | 19474-0148 |
Discov num | A 2993 |
Comp | AB |
Coord arcsec 2000 | 19 47 23.94 -01 48 28.8 |
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Date first | 1915 |
Date last | 2018 |
Obs | 27 |
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Pa first | 160 |
Pa last | 258 |
P.A. Now (θ) | 258° |
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Sep first | 0.2 |
Sep last | 0.1 |
Sep. Now (ρ) | 0.1" |
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Mag pri | 9.06 |
Mag sec | 9.09 |
delta mag (ΔM) | 0.03 |
Spectral class | A2 (white) |
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Pri motion ra | +005 |
Sec motion ra | |||||||||
Pri motion dec | -012 |
Sec motion dec | |||||||||
Notes |
Precise pa | 258 |
Precise sep | 0.085 |
Constellation | Aquila |
HIP | 97367 |
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Tycho2 | 5146-02146-1 |
HD | 186949 |
ADS | 12924 |
BD | BD-02 5115 |
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Distance | 116.55 |
Distance ly | 380.19 |
last precise pa | 258 |
last precise sep | 0.085 |
Period (P) | 138.36y | Periastron (T) | 1984.83y | Semi-major axis (a) | 0.22a | |||
Eccentricity (e) | 0.075 | Inclination (i) | 116.1° | Longitude of periastron (ω) | 344.4° | |||
Node (Ω) | 327° | Note | Grade | 3 | (1=Definitive, 9=Indet.) | |||
Equinox | 2000 | Last observation | 2009 |
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 |
19474-0148 | A 2993 | AB | 2018 | 27 | 258 | 0.1 | 9.06 | 9.09 | A2 | OW | 194723.94-014828.8 |