| Coord 2000 | 20089+6205 |
Discov num | STF2652 |
Comp | Coord arcsec 2000 | 20 08 56.80 +62 04 36.0 |
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| Date first | 1831 |
Date last | 2009 |
Obs | 75 |
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| Pa first | 285 |
Pa last | 214 |
P.A. Now (θ) | 203.8° |
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| Sep first | 0.5 |
Sep last | 0.3 |
Sep. Now (ρ) | 0.31" |
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| Mag pri | 7.29 |
Mag sec | 7.78 |
delta mag (ΔM) | 0.49 |
Spectral class | A0V (white) |
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| Pri motion ra | +012 |
Sec motion ra | |||||||||
| Pri motion dec | -019 |
Sec motion dec | |||||||||
| Notes | O
(Orbital solution) |
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| Precise pa | 214.3 |
Precise sep | 0.27 |
Constellation | Draco |
SAO | 18732 |
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| HIP | 99257 |
Tycho2 | 4236-01106-1 |
Gaia DR2 | 66972481792 |
HD | 191940 |
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| ADS | 13449 |
BD | BD+61 1975 |
Distance | 252.53 |
Distance ly | 823.75 |
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| last precise pa | 214.3 |
last precise sep | 0.27 |
| Period (P) | 495y | Periastron (T) | 2185y | Semi-major axis (a) | 0.495a | |||
| Eccentricity (e) | 0.72 | Inclination (i) | 111.2° | Longitude of periastron (ω) | 85.8° | |||
| Node (Ω) | 141.3° | Note | Grade | 4 | (1=Definitive, 9=Indet.) | |||
| Equinox | 2000 | Last observation | 2005 |
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 |
| 20089+6205 | STF2652 | 2005 | 73 | 207 | 0.3 | 7.29 | 7.78 | A0V | D | 200856.80+620436.0 | |
| 20089+6205 | STF2652 | 2006 | 74 | 210 | 0.3 | 7.29 | 7.78 | A0V | O | 200856.80+620436.0 | |
| 20089+6205 | STF2652 | 2009 | 75 | 214 | 0.3 | 7.29 | 7.78 | A0V | O | 200856.80+620436.0 |