Coord 2000 | 15300+2530 | Discov num | STF1950 | Comp | Coord arcsec 2000 | 15 29 58.46 +25 30 31.1 | |||||
Date first | 1830 | Date last | 2020 | Obs | 86 | ||||||
Pa first | 93 | Pa last | 91 | P.A. Now (θ) | 91° | ||||||
Sep first | 3.2 | Sep last | 3.3 | Sep. Now (ρ) | 3.3" | ||||||
Mag pri | 8.07 | Mag sec | 9.23 | delta mag (ΔM) | 1.16 | Spectral class | K4III (yellow-orange) | ||||
Pri motion ra | -005 | Sec motion ra | -005 | ||||||||
Pri motion dec | +008 | Sec motion dec | +008 | ||||||||
Notes |
Name | HD 138232 | Constellation | Serpens | SAO | 83852 | HIP | 75883 | ||||
Tycho2 | 2029-00812-1 | Gaia DR2 | 1222089277150606720 | HD | 138232 | GC | 20840 | ||||
BD | BD+26 2694 | Distance | 485.44 | Distance ly | 1583.51 |
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. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
15300+2530 | STF1950 | 2007 | 69 | 93 | 3.5 | 8.07 | 9.23 | K4III | D | 152958.46+253031.1 | |
15300+2530 | STF1950 | 2008 | 72 | 91 | 3.3 | 8.07 | 9.23 | K4III | D | 152958.46+253031.1 | |
15300+2530 | STF1950 | 2013 | 77 | 91 | 3.4 | 8.07 | 9.23 | K4III | D | 152958.46+253031.1 | |
15300+2530 | STF1950 | 2015 | 80 | 91 | 3.3 | 8.07 | 9.23 | K4III | 152958.46+253031.1 | ||
15300+2530 | STF1950 | 2017 | 81 | 92 | 3.3 | 8.07 | 9.23 | K4III | 152958.46+253031.1 | ||
15300+2530 | STF1950 | 2019 | 84 | 92 | 3.3 | 8.07 | 9.23 | K4III | 152958.46+253031.1 | ||
15300+2530 | STF1950 | 2020 | 85 | 91 | 3.3 | 8.07 | 9.23 | K4III | 152958.46+253031.1 |
Show | date | username | difficulty | separation | pa_estim ⇑ | interest | notes |
Show | 22/05/25 | daedalus1 | difficut | separated | 92 | Seeing Pickering 7, average. NELM 4.8. Measures: theta 91.5, rho 3.6. Companion seems much dimmer than primary. |
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=91.1° sep=2.98" |
Componente originario normalizzato | AB | Name | HD 138232 | Coord arcsec 2000 | 152958.46+253031.1 | Mag | 8.07 | ||||
Spectral class | K4III (yellow-orange) | PmRA | -5.00 | PmDE | 8.0 | SAO | 83852 | ||||
HIP | 75883 | Tycho2 | 2029-00812-1 | HD | 138232 | GC | 20840 | ||||
BD | BD+26 2694 |
Tycho2 | 2029-00812-1 | Pflag | RAmdeg | 232.49359810 | DEmdeg | 25.50863455 | |||||
PmRA | -14.5 | PmDE | 10.7 | E RAmdeg | 6 | E DEmdeg | 6 | ||||
E pmRA | 2.0 | E pmDE | 2.0 | EpRAm | 1991.26 | EpDEm | 1991.48 | ||||
Num | 3 | Q RAmdeg | 0.5 | Q DEmdeg | 2.8 | Q pmRA | 0.6 | ||||
Q pmDE | 2.8 | BTmag | 9.925 | E BTmag | 0.022 | VTmag | 8.069 | ||||
E VTmag | 0.011 | Prox | 33 | TYC | T | HIP | 75883 | ||||
CCDM | A | RAdeg | 232.49363667 | DEdeg | 25.50860944 | EpRA 1990 | 1.35 | ||||
EpDE 1990 | 1.57 | E RAdeg | 6.4 | E DEdeg | 5.7 | Posflg | D | ||||
Corr | 0.1 |
SAO | 83852 | DelFlag | RA1950 | PmRA1950 | 0.0003 | ||||||
DE1950 | PmDE1950 | -0.012 | Vmag | 8.1 | SpType | K2 | |||||
Double code | Source | 70 | CatNum | 20840 | DM | BD+26 2694 | |||||
DMcomp | BDsup | HD | 138232 | M HD | 0 | ||||||
GC | 20840 | RA1950rad | 4.0484394 | DE1950rad | 0.44817919 | PmRA2000 | 0.0004 | ||||
PmDE2000 | -0.009 |
Catalog | H | HIP | 75883 | Proxy | H | RAhms | 15 29 58.47 | ||||
DEdms | +25 30 31.0 | Vmag | 7.62 | VarFlag | R Vmag | H | |||||
RAdeg | 232.494 | DEdeg | 25.5086 | AstroRef | A | Plx | 2.12 | ||||
CCDM | 15300+2531 | N CCDM | I | Nsys | 1 | Ncomp | 2 | ||||
MultFlag | C | Source | Qual | A | M HIP | AB | |||||
Theta | 92 | Rho | 3.301 | HD | 138232 | BD | BD+26 2694 | ||||
CD | CP | Dm number | +26 2694 | VIred | 1.5 | ||||||
SpType | K4III+... | R SpType | Coord arcsec 2000 | 152958.47+253031.0 |
HIP | 75883 | Sn | 15 | So | 3 | Nc | 2 | ||||
RArad | 4.0577794859 | DErad | 0.4452092135 | Plx | 2.06 | PmRA | -4.29 | ||||
PmDE | 6.84 | E RArad | 0.78 | E DErad | 0.82 | E Plx | 1.19 | ||||
E pmRA | 0.99 | E pmDE | 1.45 | Hpmag | 7.7533 | E Hpmag | 0.0012 | ||||
SHp | 0.013 | VA | 0 | BV | 1.449 | E BV | 0.025 | ||||
VI | 1.45 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 152958.68+253031.0 | Mag | 9.23 | PmRA | -5.00 | ||||
PmDE | 8.0 | Calc delta mag | 1.16 | Calc coord | yes |