20569+1059 HDS 2985 (HD 199453)
20h 56m 55.86s +10° 58' 34.3" P.A. 293.00 sep 0.6 mag 9.17,11.72 Sp B9 dist. 2500 pc (8155 l.y.)
| Coord 2000 | 20569+1059 | Discov num | HDS2985 | Comp | Coord arcsec 2000 | 20 56 55.86 +10 58 34.3 | |||||
| Date first | 1991 | Date last | 2011 | Obs | 3 | ||||||
| Pa first | 293 | Pa last | 292.5 | P.A. Now (θ) | 292.5° | ||||||
| Sep first | 0.6 | Sep last | 0.63 | Sep. Now (ρ) | 0.63" | ||||||
| Mag pri | 9.17 | Mag sec | 11.72 | delta mag (ΔM) | 2.55 | Spectral class | B9 (blue-white) | ||||
| Pri motion ra | +002 | Sec motion ra | |||||||||
| Pri motion dec | +002 | Sec motion dec | |||||||||
| Notes | |||||||||||
OTHER CATALOGS AND DESIGNATIONS
| Name | HD 199453 | Constellation | Delphinus | SAO | 106686 | HIP | 103402 | ||||
| Tycho2 | 1107-00822-1 | Gaia DR2 | 1756796208527353344 | HD | 199453 | BD | BD+10 4418 | ||||
| Distance | 2500 | Distance ly | 8155 |
WDS 20569+1059 HDS 2985 (HD 199453) : NOTES
REFERENCES
| refcode | metd | author | reference |
| HDS | Hipparcos Double Star (from additional DD list) | ................... |
WDS HISTORIC DATA
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20569+1059 | HDS2985 | 2003 | 2 | 291 | 0.5 | 9.17 | 11.72 | B9 | D | 205655.86+105834.3 | |
| 20569+1059 | HDS2985 | 2011 | 3 | 293 | 0.6 | 9.17 | 11.72 | B9 | 205655.86+105834.3 |
If you need more information about this double, apply for a data request form to the WDS.
WDS 20569+1059 HDS 2985 (HD 199453) : VISUAL OBSERVATIONS REPORTS
WDS 20569+1059 HDS 2985 (HD 199453) : MEASURES
WDS 20569+1059 (HD 199453) : VIRTUAL EYEPIECE
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WDS 20569+1059 (HD 199453) : ALADIN DSS IMAGE @
Error -22130
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Error -27220
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