21218+0202 STF 2787 AC
21h 21m 47.59s +02° 01' 38.5" P.A. 94.00 sep 70.4 mag 7.49,11.41 Sp A2 dist. 2564.1 pc (8364.09 l.y.)
| Coord 2000 | 21218+0202 | Discov num | STF2787 | Comp | AC | Coord arcsec 2000 | 21 21 47.59 +02 01 38.5 | ||||
| Date first | 1892 | Date last | 2015 | Obs | 12 | ||||||
| Pa first | 94 | Pa last | 93.9 | P.A. Now (θ) | 93.9° | ||||||
| Sep first | 70.9 | Sep last | 70.431 | Sep. Now (ρ) | 70.431" | ||||||
| Mag pri | 7.49 | Mag sec | 11.41 | delta mag (ΔM) | 3.92 | Spectral class | A2 (white) | ||||
| Pri motion ra | +000 | Sec motion ra | +002 | ||||||||
| Pri motion dec | -008 | Sec motion dec | -002 | ||||||||
| Notes | N (See Notes) | ||||||||||
21218+0202 SYSTEM COMPONENTS
| Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
| Show | HD 203383 | 126730 | 21 21 48 +02 01 38 | STF 2787 AB | 2014 | 37 | 20 | 22.6 | 7.49 | 8.64 | 1.15 | ||
| Show | 126730 | 21 21 48 +02 01 38 | STF 2787 AC | 2015 | 12 | 94 | 70.4 | 7.49 | 11.41 | 3.92 | <=== |
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation | Aquarius | SAO | 126730 | HIP | 105472 | Tycho2 | 0532-02289-1 | ||||
| Gaia DR2 | 2691447788684629376 | HD | 203383 | BD | BD+01 4465 | Distance | 2564.1 | ||||
| Distance ly | 8364.09 |
WDS 21218+0202 STF 2787 AC : NOTES
| discov_num | notes | refcode |
| STF2787 | B is BD+01@4465a. |
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 |
| 21218+0202 | STF2787 | AC | 2000 | 6 | 94 | 70.3 | 7.49 | 10.30 | A2 | N D | 212147.59+020138.5 |
| 21218+0202 | STF2787 | AC | 2012 | 8 | 94 | 70.7 | 7.49 | 11.41 | A2 | N D | 212147.59+020138.5 |
| 21218+0202 | STF2787 | AC | 2015 | 9 | 94 | 70.4 | 7.49 | 11.41 | A2 | N | 212147.59+020138.5 |
If you need more information about this double, apply for a data request form to the WDS.
WDS 21218+0202 STF 2787 AC : VISUAL OBSERVATIONS REPORTS
WDS 21218+0202 STF 2787 AC : MEASURES
WDS 21218+0202 : VIRTUAL EYEPIECE
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WDS 21218+0202 : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Not valid ID.
Error -22130
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Error -27220
Not valid ID.
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Error -27220
Not valid ID.