21598+2356 STF 2850 (OU Peg)
21h 59m 49.60s +23° 56' 27.4" P.A. 264.00 sep 2.8 mag 7.00,11.00 Sp M5 dist. 621.12 pc (2026.09 l.y.)
| Coord 2000 | 21598+2356 | Discov num | STF2850 | Comp | Coord arcsec 2000 | 21 59 49.60 +23 56 27.4 | |||||
| Date first | 1830 | Date last | 1983 | Obs | 15 | ||||||
| Pa first | 263 | Pa last | 264 | P.A. Now (θ) | 264° | ||||||
| Sep first | 2.8 | Sep last | 2.82 | Sep. Now (ρ) | 2.82" | ||||||
| Mag pri | 7.00 | Mag sec | 11.00 | delta mag (ΔM) | 4 | Spectral class | M5 (red) | ||||
| Pri motion ra | -006 | Sec motion ra | |||||||||
| Pri motion dec | -027 | Sec motion dec | |||||||||
| Notes | N (See Notes) | ||||||||||
OTHER CATALOGS AND DESIGNATIONS
| Var name | OU Peg | Constellation | Pegasus | SAO | 90155 | HIP | 108588 | ||||
| Tycho2 | 2203-01564-1 | Gaia DR2 | 1795337256472746624 | HD | 209026 | GC | 30777 | ||||
| ADS | 15525 | BD | BD+23 4442 | Distance | 621.12 | Distance ly | 2026.09 |
WDS 21598+2356 STF 2850 (OU Peg) : NOTES
| discov_num | notes | refcode |
| STF2850 | A is an irregular variable. |
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 |
| 21598+2356 | STF2850 | 1983 | 15 | 264 | 2.8 | 7.00 | 11.00 | M5 | N | 215949.60+235627.4 |
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WDS 21598+2356 STF 2850 (OU Peg) : VISUAL OBSERVATIONS REPORTS
WDS 21598+2356 STF 2850 (OU Peg) : MEASURES
WDS 21598+2356 (OU Peg) : VIRTUAL EYEPIECE
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WDS 21598+2356 (OU Peg) : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.
Not valid ID.
Error -27220
Not valid ID.