Coord 2000 | 19394+2215 |
Discov num | STF2556 |
Comp | Coord arcsec 2000 | 19 39 26.31 +22 15 23.4 |
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Date first | 1829 |
Date last | 2018 |
Obs | 200 |
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Pa first | 188 |
Pa last | 335 |
P.A. Now (θ) | 337.9° |
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Sep first | 0.6 |
Sep last | 0.4 |
Sep. Now (ρ) | 0.38" |
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Mag pri | 7.71 |
Mag sec | 8.92 |
delta mag (ΔM) | 1.21 |
Spectral class | F4IV (yellow-white) |
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Pri motion ra | +003 |
Sec motion ra | +003 |
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Pri motion dec | +013 |
Sec motion dec | +013 |
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Notes | O
(Orbital solution) |
Precise pa | 335.1 |
Precise sep | 0.421 |
Constellation | Vulpecula |
SAO | 87508 |
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HIP | 96691 |
Tycho2 | 1614-00138-1 |
HD | 185661 |
ADS | 12752 |
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BD | BD+21 3862 |
Distance | 147.28 |
Distance ly | 480.43 |
last precise pa | 335.1 |
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last precise sep | 0.421 |
Period (P) | 622.4y | Periastron (T) | 1970.31y | Semi-major axis (a) | 0.678a | |||
Eccentricity (e) | 0.476 | Inclination (i) | 140.9° | Longitude of periastron (ω) | 356° | |||
Node (Ω) | 44.5° | Note | Grade | 4 | (1=Definitive, 9=Indet.) | |||
Equinox | 2000 | Last observation | 1997 |
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 |
19394+2215 | STF2556 | 2007 | 198 | 348 | 0.4 | 7.71 | 8.92 | F4IV | NOD | 193926.31+221523.4 | |
19394+2215 | STF2556 | 2008 | 201 | 352 | 0.4 | 7.71 | 8.92 | F4IV | NOD | 193926.31+221523.4 | |
19394+2215 | STF2556 | 2012 | 203 | 349 | 0.4 | 7.71 | 8.92 | F4IV | NOD | 193926.31+221523.4 | |
19394+2215 | STF2556 | 2018 | 199 | 335 | 0.4 | 7.71 | 8.92 | F4IV | O | 193926.31+221523.4 |