Coord 2000 | 16534-2025 | Discov num | WSI 86 | Comp | Coord arcsec 2000 | 16 53 25.26 -20 24 55.8 | |||||
Date first | 2008 | Date last | 2021 | Obs | 7 | ||||||
Pa first | 167 | Pa last | 180 | P.A. Now (θ) | 180° | ||||||
Sep first | 0.4 | Sep last | 0.382 | Sep. Now (ρ) | 0.382" | ||||||
Mag pri | 5.90 | Mag sec | 11.30 | delta mag (ΔM) | 5.4 | Spectral class | G2IV-V (yellow) | ||||
Pri motion ra | -058 | Sec motion ra | |||||||||
Pri motion dec | -027 | Sec motion dec | |||||||||
Notes | N O (See Notes, Orbital solution) |
Name | HD 152311 | Constellation | Ophiuchus | SAO | 184754 | HIP | 82621 | ||||
Tycho2 | 6226-01945-1 | Gaia DR2 | 4127420626087054976 | HD | 152311 | HR | 6269 | ||||
GC | 22731 | BD | BD-20 4572 | Distance | 26.94 | Distance ly | 87.88 |
Period (P) | 14.91y | ± 0.25 | Periastron (T) | 2014.96y | ± 0.17 | Semi-major axis (a) | 0.2697a | ± 0.0059 |
Eccentricity (e) | 0.502 | ± 0.013 | Inclination (i) | 132° | ± 2.3 | Longitude of periastron (ω) | 26.7° | ± 5.9 |
Node (Ω) | 13.1° | ± 3 | Notes | n | Reference | Tok2020e | ||
Equinox | Last observation | Grade | 4 | (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 86 | Astrometric binary; dm 2.9 mag, period ~ 10y? Accelerated pm. | Tok2012b |
refcode | metd | author | reference |
Tok2012b | S j | Tokovinin, A. | 2012AJ....144...56T |
Tok2012b | +orb | AJ 144, 56, 2012 | |
Tok2020e | St j | Tokovinin, A., Mason, B.D., Mendez, R.A., Costa, E. & Horch, E.P. | 2020AJ....160....7T |
Tok2020e | +orb | AJ 160, 7, 2020 |
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 |
16534-2025 | WSI 86 | 2008 | 1 | 167 | 0.4 | 5.90 | 11.30 | G2IV-V | 165325.26-202455.8 | ||
16534-2025 | WSI 86 | 2012 | 2 | 110 | 0.2 | 5.90 | 11.30 | G2IV-V | 165325.26-202455.8 | ||
16534-2025 | WSI 86 | 2017 | 3 | 37 | 0.3 | 5.90 | 11.30 | G2IV-V | N | 165325.26-202455.8 | |
16534-2025 | WSI 86 | 2018 | 4 | 25 | 0.3 | 5.90 | 11.30 | G2IV-V | N | 165325.26-202455.8 | |
16534-2025 | WSI 86 | 2019 | 5 | 198 | 0.3 | 5.90 | 11.30 | G2IV-V | N | 165325.26-202455.8 | |
16534-2025 | WSI 86 | 2020 | 6 | 190 | 0.4 | 5.90 | 11.30 | G2IV-V | N | 165325.26-202455.8 | |
16534-2025 | WSI 86 | 2021 | 7 | 180 | 0.4 | 5.90 | 11.30 | G2IV-V | N | 165325.26-202455.8 |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
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A | |
B | pa=180.0° sep=0.38" |
Componente originario normalizzato | AB | Name | HD 152311 | Coord arcsec 2000 | 165325.26-202455.8 | Mag | 5.9 | ||||
Spectral class | G2IV (yellow) | PmRA | -58.00 | PmDE | -27.0 | SAO | 184754 | ||||
HIP | 82621 | Tycho2 | 6226-01945-1 | HD | 152311 | HR | 6269 | ||||
GC | 22731 | BD | BD-20 4572 |
Tycho2 | 6226-01945-1 | Pflag | RAmdeg | 253.35512253 | DEmdeg | -20.41556249 | |||||
PmRA | -43.3 | PmDE | -30.2 | E RAmdeg | 4 | E DEmdeg | 4 | ||||
E pmRA | 0.8 | E pmDE | 0.8 | EpRAm | 1991.30 | EpDEm | 1990.99 | ||||
Num | 20 | Q RAmdeg | 1.5 | Q DEmdeg | 1.5 | Q pmRA | 1.5 | ||||
Q pmDE | 1.6 | BTmag | 6.710 | E BTmag | 0.014 | VTmag | 5.936 | ||||
E VTmag | 0.010 | Prox | 999 | TYC | T | HIP | 82621 | ||||
CCDM | RAdeg | 253.35522833 | DEdeg | -20.41549056 | EpRA 1990 | 1.75 | |||||
EpDE 1990 | 1.48 | E RAdeg | 3.6 | E DEdeg | 4.0 | Posflg | |||||
Corr | 0.2 |
SAO | 184754 | DelFlag | RA1950 | PmRA1950 | -0.0036 | ||||||
DE1950 | PmDE1950 | -0.031 | Vmag | 5.9 | SpType | G5 | |||||
Double code | Source | 70 | CatNum | 22731 | DM | BD-20 4572 | |||||
DMcomp | BDsup | HD | 152311 | M HD | 0 | ||||||
GC | 22731 | RA1950rad | 4.40898172 | DE1950rad | -0.35488875 | PmRA2000 | -0.0035 | ||||
PmDE2000 | -0.029 |
Catalog | H | HIP | 82621 | Proxy | RAhms | 16 53 25.26 | |||||
DEdms | -20 24 55.8 | Vmag | 5.86 | VarFlag | R Vmag | H | |||||
RAdeg | 253.355 | DEdeg | -20.4155 | AstroRef | Plx | 35.73 | |||||
CCDM | N CCDM | Nsys | Ncomp | 1 | |||||||
MultFlag | G | Source | Qual | M HIP | |||||||
Theta | Rho | HD | 152311 | BD | BD-20 4572 | ||||||
CD | CP | Dm number | -20 4572 | VIred | 0.74 | ||||||
SpType | G5IV | R SpType | Coord arcsec 2000 | 165325.26-202455.8 |
HIP | 82621 | Sn | 7 | So | 1 | Nc | 1 | ||||
RArad | 4.4218830638 | DErad | -0.3563174934 | Plx | 37.12 | PmRA | -59.57 | ||||
PmDE | -26.75 | E RArad | 0.59 | E DErad | 0.43 | E Plx | 0.72 | ||||
E pmRA | 0.65 | E pmDE | 0.52 | Hpmag | 6.0013 | E Hpmag | 0.0011 | ||||
SHp | 0.006 | VA | 0 | BV | 0.685 | E BV | 0.004 | ||||
VI | 0.74 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 165325.26-202456.2 | Mag | 11.3 | Spectral class | V | ||||
Calc delta mag | 5.4 | Calc coord | yes |