Coord 2000 | 19406+6240 |
Discov num | STF2574 |
Comp | Coord arcsec 2000 | 19 40 34.80 +62 39 53.4 |
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Date first | 1831 |
Date last | 2020 |
Obs | 98 |
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Pa first | 314 |
Pa last | 94 |
P.A. Now (θ) | 98.1° |
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Sep first | 1.5 |
Sep last | 0.6 |
Sep. Now (ρ) | 0.54" |
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Mag pri | 7.73 |
Mag sec | 8.91 |
delta mag (ΔM) | 1.18 |
Spectral class | F8V (yellow-white) |
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Pri motion ra | +026 |
Sec motion ra | +026 |
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Pri motion dec | +111 |
Sec motion dec | +111 |
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Notes | O
(Orbital solution) |
Precise pa | 93.8 |
Precise sep | 0.61 |
Constellation | Draco |
SAO | 18469 |
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HIP | 96796 |
Tycho2 | 4234-01631-1 |
HD | 186453 |
ADS | 12803 |
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BD | BD+62 1747 |
Distance | 128.53 |
Distance ly | 419.26 |
last precise pa | 93.8 |
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last precise sep | 0.61 |
Period (P) | 685.13y | Periastron (T) | 2057.26y | Semi-major axis (a) | 1.302a | |||
Eccentricity (e) | 0.67 | Inclination (i) | 78.9° | Longitude of periastron (ω) | 48.2° | |||
Node (Ω) | 107.6° | Note | Grade | 4 | (1=Definitive, 9=Indet.) | |||
Equinox | 2000 | Last observation | 1999 |
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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 |
19406+6240 | STF2574 | 1999 | 91 | 88 | 0.5 | 7.73 | 8.91 | F8V | D | 194034.80+623953.4 | |
19406+6240 | STF2574 | 2007 | 93 | 88 | 0.5 | 7.73 | 8.91 | F8V | OD | 194034.80+623953.4 | |
19406+6240 | STF2574 | 2009 | 94 | 90 | 0.5 | 7.73 | 8.91 | F8V | OD | 194034.80+623953.4 | |
19406+6240 | STF2574 | 2016 | 96 | 94 | 0.6 | 7.73 | 8.91 | F8V | O | 194034.80+623953.4 | |
19406+6240 | STF2574 | 2018 | 97 | 97 | 0.5 | 7.73 | 8.91 | F8V | O | 194034.80+623953.4 |