17449+3108 STF 2213 (HD 161550)
17h 44m 50.81s +31° 07' 54.5" P.A. 327.00 sep 4.9 mag 8.15,8.96 Sp F8 dist. 124.69 pc (406.74 l.y.)
| Coord 2000 | 17449+3108 | Discov num | STF2213 | Comp | Coord arcsec 2000 | 17 44 50.81 +31 07 54.5 | |||||
| Date first | 1825 | Date last | 2020 | Obs | 105 | ||||||
| Pa first | 336 | Pa last | 327.3 | P.A. Now (θ) | 327.3° | ||||||
| Sep first | 5.0 | Sep last | 4.853 | Sep. Now (ρ) | 4.853" | ||||||
| Mag pri | 8.15 | Mag sec | 8.96 | delta mag (ΔM) | 0.81 | Spectral class | F8 (yellow-white) | ||||
| Pri motion ra | -018 | Sec motion ra | -027 | ||||||||
| Pri motion dec | -007 | Sec motion dec | +011 | ||||||||
| Notes | |||||||||||
OTHER CATALOGS AND DESIGNATIONS
| Name | HD 161550 | Constellation | Hercules | SAO | 66298 | HIP | 86861 | ||||
| Tycho2 | 2607-00579-1 | Gaia DR2 | 4597964839165224064 | HD | 161550 | GC | 24094 | ||||
| BD | BD+31 3087 | Distance | 124.69 | Distance ly | 406.74 |
WDS 17449+3108 STF 2213 (HD 161550) : NOTES
REFERENCES
| refcode | metd | author | reference |
| STFA | (F. Struve DD - Appendix list #1) | ................... | |
| STFB | (F. Struve DD - Appendix list #2) | ................... | |
| StF1833A | Ma - | Struve, F.G.W. | 1833MmRAS...5...13H |
| StF1833A | +Mc | cited by Herschel (MemRAS 5, 13, 1833) | |
| StF1833B | Ma - | Struve, F.G.W. | 1833AN.....10..389B |
| StF1833B | cited by Bessel (AN 10, 389, 1833) | ||
| StF1837 | Ma - | Struve, F.G.W. | 1837AN.....14...249 |
| StF1837 | Stellarum duplicium et multiplicium mensurae micrometricae... | ||
| StF1837 | (Dorpat, Academiae scientiarum caesareae petropolitaneifique), 1837 | ||
| StF1844A | Ma - | Struve, F.G.W. | 1844QB43.S66....... |
| StF1844A | cited by Smyth (Cycle of Celestial Objects 2, 1844) | ||
| StF1852A | Ma - | Struve, F.G.W. | . |
| StF1852A | cited by Bishop (Bishop Obs. Astron. Observations 1852) | ||
| StF1865A | Ma - | Struve, F.G.W. | 1865AN.....64...81E |
| StF1865A | cited by Engelmann (AN 64, 81, #1518, 1865) | ||
| StF1875A | Ma - | Struve, F.G.W. | 1875AN.....85..323D |
| StF1875A | cited by Doberck, 1875 (see Dob1875b,f,g,h) | ||
| StF1878 | Ma - | Struve, F.G.W. | . |
| StF1878 | Pulkova Observations 9, 1878 | ||
| StF1878B | Ma - | Struve, F.G.W. | 1878Obs.....2..239G |
| StF1878B | cited by Gledhill (Obs 2, 239, 1878) | ||
| StF1880A | Ma - | Struve, F.G.W. | 1880Obs.....3..535G |
| StF1880A | cited by Gledhill (Obs 3, 535, 1880) | ||
| StF1906A | Ma - | Struve, F.G.W. | 1906QB821.B972..... |
| StF1906A | cited in BDS (Burnham Double Star Cat.), 1906 | ||
| StF1906B | Ma - | Struve, F.G.W. | 1906MmRAS..56....1L |
| StF1906B | cited by Lewis (MemRAS 56, 1, 1906) | ||
| StF1922A | Ma - | Struve, F.G.W. | 1922AN....216...49R |
| StF1922A | cited by Rabe (AN 216, 49, 1922) | ||
| StF1932A | Ma - | Struve, F.G.W. | 1932QB821.A43...... |
| StF1932A | cited in ADS (Aitken Double Star Cat.), 1932 | ||
| StF2002 | - - | Weis, J. | |
| StF2002 | F. G. W. Struve's double stars : the Dorpat catalogue; the Pulkovo catalogue | ||
| StF2002 | USNO Library : QB 821 .S8 W49 2002 | ||
| StF2022 | - - | email note from Jan Weis: 6 July 2022 | |
| StF9999 | Ma - | Struve, F.G.W. | ................... |
| StF9999 | Unpublished, manuscript or reference not found. |
WDS HISTORIC DATA
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 17449+3108 | STF2213 | 2007 | 88 | 328 | 4.9 | 8.15 | 8.96 | F8 | D | 174450.81+310754.5 | |
| 17449+3108 | STF2213 | 2008 | 91 | 328 | 4.6 | 8.15 | 8.96 | F8 | D | 174450.81+310754.5 | |
| 17449+3108 | STF2213 | 2017 | 95 | 328 | 4.7 | 8.15 | 8.96 | F8 | 174450.81+310754.5 | ||
| 17449+3108 | STF2213 | 2018 | 97 | 328 | 4.8 | 8.15 | 8.96 | F8 | 174450.81+310754.5 | ||
| 17449+3108 | STF2213 | 2019 | 102 | 327 | 4.7 | 8.15 | 8.96 | F8 | 174450.81+310754.5 | ||
| 17449+3108 | STF2213 | 2020 | 103 | 327 | 4.8 | 8.15 | 8.96 | F8 | 174450.81+310754.5 |
If you need more information about this double, apply for a data request form to the WDS.
WDS 17449+3108 STF 2213 (HD 161550) : VISUAL OBSERVATIONS REPORTS
WDS 17449+3108 STF 2213 (HD 161550) : MEASURES
Records found: 1
| Show | date | username | difficulty | sep | sep_sigma | pa | pa_sigma | delta_mag | # | notes |
| Show | 12/07/21 | northisup | easy | 4.00 | 327.00 | 1 | close in mag. |
WDS 17449+3108 (HD 161550) : VIRTUAL EYEPIECE
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WDS 17449+3108 (HD 161550) : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
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Error -22130
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Error -27220
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Error -27220
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