| Coord 2000 | 20269-3724 |
Discov num | R 321 |
Comp | Coord arcsec 2000 | 20 26 52.97 -37 24 10.6 |
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| Date first | 1880 |
Date last | 2019 |
Obs | 71 |
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| Pa first | 97 |
Pa last | 123 |
P.A. Now (θ) | 122.8° |
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| Sep first | 1.1 |
Sep last | 1.6 |
Sep. Now (ρ) | 1.6" |
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| Mag pri | 6.58 |
Mag sec | 8.09 |
delta mag (ΔM) | 1.51 |
Spectral class | K2IV+K1V (yellow-orange/yellow-orange) |
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| Pri motion ra | -249 |
Sec motion ra | -249 |
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| Pri motion dec | -114 |
Sec motion dec | -114 |
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| Notes | O
(Orbital solution) |
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| Precise pa | 123 |
Precise sep | 1.58 |
Constellation | Sagittarius |
SAO | 212126 |
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| HIP | 100852 |
Tycho2 | 7467-01373-1 |
Gaia DR2 | 6694723755167180160 |
HD | 194433 |
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| HR | 7808 |
CD | CD-3713741 |
Distance | 37.33 |
Distance ly | 121.77 |
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| last precise pa | 123 |
last precise sep | 1.58 |
| Period (P) | 186.4192y | ± 5.9398 | Periastron (T) | 1949.1982y | ± 0.1812 | Semi-major axis (a) | 1.06149a | ± 0.01098 |
| Eccentricity (e) | 0.69564 | ± 0.00946 | Inclination (i) | 139.301° | ± 1.541 | Longitude of periastron (ω) | 227.418° | ± 2.218 |
| Node (Ω) | 152.349° | ± 1.626 | Note | Grade | 3 | (1=Definitive, 9=Indet.) | ||
| Equinox | Last observation | 2013 |
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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 |
| 20269-3724 | R 321 | 1999 | 59 | 134 | 1.5 | 6.58 | 8.09 | K2IV K1V | NOD | 202652.97-372410.6 | |
| 20269-3724 | R 321 | 2008 | 60 | 128 | 1.5 | 6.58 | 8.09 | K2IV K1V | NOD | 202652.97-372410.6 | |
| 20269-3724 | R 321 | 2013 | 63 | 126 | 1.6 | 6.58 | 8.09 | K2IV K1V | NO | 202652.97-372410.6 | |
| 20269-3724 | R 321 | 2016 | 67 | 128 | 1.7 | 6.58 | 8.09 | K2IV+K1V | O | 202652.97-372410.6 | |
| 20269-3724 | R 321 | 2017 | 69 | 124 | 1.6 | 6.58 | 8.09 | K2IV+K1V | O | 202652.97-372410.6 |