Coord 2000 | 12290+0826 | Discov num | WSI 113 | Comp | Coord arcsec 2000 | 12 28 57.59 +08 25 31.9 | |||||
Date first | 1995 | Date last | 2021 | Obs | 36 | ||||||
Pa first | 180 | Pa last | 15.8 | P.A. Now (θ) | 355.5° | ||||||
Sep first | 0.2 | Sep last | 0.245 | Sep. Now (ρ) | 0.283" | ||||||
Mag pri | 12.20 | Mag sec | 13.80 | delta mag (ΔM) | 1.6 | Spectral class | M3.5V+M5V (red/red) | ||||
Pri motion ra | -634 | Sec motion ra | |||||||||
Pri motion dec | -258 | Sec motion dec | |||||||||
Notes | N O (See Notes, Orbital solution) |
Constellation | Virgo | HIP | 60910 | GL | Gl 469 | Distance | 13.18 | ||||
Distance ly | 42.99 |
Period (P) | 11.5515y | ± 0.0055 | Periastron (T) | 58765.8d (2019.771y) | ± 3.4 | Semi-major axis (a) | 312.71m | ± 0.65 |
Eccentricity (e) | 0.2995 | ± 0.0032 | Inclination (i) | 108.194° | ± 0.065 | Longitude of periastron (ω) | 268.58° | ± 0.13 |
Node (Ω) | 9.81° | ± 0.13 | Notes | n | Reference | MnA2019 | ||
Equinox | Last observation | Grade | 2 | (1=Definitive, 9=Indet.) |
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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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discov_num | notes | refcode |
WSI 113 | GJ 469. Initally added to WDS as 12297-0320AST 4 with GJ 469.1. |
refcode | metd | author | reference |
MnA2019 | C j | Mann, A.W., Dupuy, T., Kraus, A.L., Gaidos, E., Ansdell, M., Ireland, M., Rizzuto, | 2019ApJ...871...63M |
MnA2019 | +orb | A.C., Hung, C..-L., Dittmann, J., Factor, S., Feiden, G., Martinez, R.A., | |
MnA2019 | Ruiz-Rodriguez, D. & Chia Thao, P. | ||
MnA2019 | ApJ 871, 63, 2019 |
idgroup | discov | author |
1 | WSI | Douglass, G.G., Hindsley, R.B., & Worley, C.E. |
10 | WSI | Mason, B.D., Hartkopf, W.I., Holdenried, E.R., Rafferty, T.J., Wycoff, G.L., |
10 | WSI | Hennessy, G.S., Hall, D.M., Urban, S.E., et al. |
13 | WSI | Mason, B.D., Hartkopf, W.I., Wycoff, G.L., Holdenried, E.R., Platais, I., |
13 | WSI | Rafferty, T.J., Hall, D.M., Hennessy, G.S., et al. |
14 | WSI | Mason, B.D., Hartkopf, W.I., Urban, S.E., Wycoff, G.L., Pascu, D., Hall, D.M., |
14 | WSI | Hennessy, G.S., Platais, I., et al. |
15 | WSI | Mason, B.D., Hartkopf, W.I., Wycoff, G.L., Pascu, D., Urban, S.E., Hall, D.M., |
15 | WSI | Hennessy, G.S., Rafferty, T.J., et al. |
42 | WSI | Mason, B.D., Hartkopf, W.I., Bredthauer, G., Ferguson, E.W., Finch, C.T., Kilian, |
42 | WSI | C.M., Rafferty, T.J., Ragan, T.J. & Wieder, G.D. |
52 | WSI | Mason, B.D., Williams, S.J., Matson, R.A., Josties, J.D., Eakens, P.D., Justice, |
52 | WSI | M., Kilian, C.M. & Warner, R. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
12290+0826 | WSI 113 | 2006 | 1 | 190 | 0.3 | 12.20 | 13.80 | M3.5 | 122857.59+082531.9 | ||
12290+0826 | WSI 113 | 2010 | 2 | 8 | 0.3 | 12.20 | 13.80 | M3.5 | 122857.59+082531.9 | ||
12290+0826 | WSI 113 | 2014 | 5 | 268 | 0.1 | 12.20 | 13.80 | M3.5 | 122857.59+082531.9 | ||
12290+0826 | WSI 113 | 2015 | 6 | 229 | 0.2 | 12.20 | 13.80 | M3.5 | 122857.59+082531.9 | ||
12290+0826 | WSI 113 | 2017 | 19 | 196 | 0.3 | 12.20 | 13.80 | M3.5 | NO | 122857.59+082531.9 | |
12290+0826 | WSI 113 | 2018 | 20 | 187 | 0.3 | 12.20 | 13.80 | M3.5 | NO | 122857.59+082531.9 | |
12290+0826 | WSI 113 | 2019 | 22 | 171 | 0.2 | 12.20 | 13.80 | M3.5 | NO | 122857.59+082531.9 | |
12290+0826 | WSI 113 | 2020 | 25 | 70 | 0.1 | 12.20 | 13.80 | M3.5V+M5V | NO | 122857.59+082531.9 | |
12290+0826 | WSI 113 | 2021 | 36 | 16 | 0.2 | 12.20 | 13.80 | M3.5V+M5V | NO | 122857.59+082531.9 |
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