stampa
Login

Filter only those doubles you can observe? Yes, you can!
Register here


Search



Actions
Advanced Search
Go to Simbad
New report
New measure
Login


Computed Lists
Populars
Latest Populars
Doubles in session


Current system
18309+3840
STF 2338 CD


Nearby doubles
12' : 18316+3846
COU1604

19' : 18310+3857
SLE 187AB

27' : 18329+3850
STTA171AB

38' : 18298+3803
HU 1189

42' : 18343+3832
SLE 210

43' : 18272+3847
MLB 854

53' : 18301+3746
UC 3595

53' : 18297+3929
TDT 910

54' : 18298+3930
SLE 182

58' : 18323+3933
UC 3603

64' : 18335+3934
SLE 208AB

66' : 18362+3858
ES 2571

67' : 18367+3911
OL 14AB

69' : 18367+3841
H 4 59AB

71' : 18366+3859
MLB 755

72' : 18369+3846
H 5 39AB
Vega

77' : 18348+3939
SLE 215

78' : 18273+3944
TDT 881

78' : 18334+3727
ES 2481

80' : 18337+3726
MLB 937

82' : 18240+3844
HO 432AB

83' : 18239+3824
HEI 803

86' : 18376+3806
ES 2019AB

86' : 18237+3821
HO 431

90' : 18300+3710
BU 420AB

90' : 18385+3837
SLE 230AB



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18309+3840 STF 2338 CD

 
 
18h 30m 51.83s +38° 38' 25.3" P.A. 243.00 sep 13.0 mag 9.62,14.80 Sp Ma
 
 
Coord 2000 18309+3840 Discov num STF2338 Comp CD Coord arcsec 2000 18 30 51.83 +38 38 25.3
Date first 1904 Date last 2017 Obs 6
Pa first 241 Pa last 243.1 P.A. Now (θ) 243.1°
Sep first 14.2 Sep last 13 Sep. Now (ρ) 13"
Mag pri 9.62 Mag sec 14.80 delta mag (ΔM) 5.18 Spectral class Ma (red)
Pri motion ra +002 Sec motion ra
Pri motion dec -007 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
18309+3840 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 30 55 +38 39 34 STF 2338 AB 2017 26 301 12.1 9.30 11.20 1.90
Show 18 30 55 +38 39 34 STF 2338 AC 2017 24 206 76.4 9.30 9.62 0.32
Show 18 30 55 +38 39 34 STF 2338 AE 2017 13 154 51.7 9.30 13.00 3.70
Show 18 30 52 +38 38 25 STF 2338 CD 2017 6 243 13.0 9.62 14.80 5.18 <===
Show 18 30 52 +38 38 25 STF 2338 CE 2017 11 69 60.7 9.62 13.00 3.38
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra Tycho2 3105-00726-1 Gaia DR2 2108423329924057472
 
 
WDS 18309+3840 STF 2338 CD : NOTES
 
 
discov_num notes refcode
STF2338 C is the semiregular variable KP Lyr.
 
 
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
18309+3840 STF2338 CD 2000 2 243 13.1 9.62 14.80 Ma N 183051.83+383825.3
18309+3840 STF2338 CD 2002 3 243 13.1 9.62 14.80 Ma N 183051.83+383825.3
18309+3840 STF2338 CD 2006 4 69 60.7 9.30 13.80 Ma N 183051.83+383825.3
18309+3840 STF2338 CD 2017 3 243 13.0 9.62 14.80 Ma N 183051.83+383825.3

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 18309+3840 STF 2338 CD : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18309+3840 STF 2338 CD : MEASURES
 
 
No records found.

 
 
WDS 18309+3840 : VIRTUAL EYEPIECE
 
 

18309+3840 STF2338A mag 9.3 Sp K2 18309+3840 STF2338B sep 10.2 P.A. 307.10 mag 11.2 18309+3840 STF2338C sep 76.6 P.A. 206.50 mag 9.62 Sp Ma 18309+3840 STF2338D sep 86.0 P.A. 210.20 mag 14.8 18309+3840 STF2338E sep 49.7 P.A. 159.10 mag 13 Sp V virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18309+3840 : ALADIN DSS IMAGE @ 18h 30m 51.83s +38° 38' 25.3"
 
 
 
 
WDS 18309+3840 STF 2338 CD : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18309+3840 STF2338CD distance=0' 18309+3840 STF2338AB distance=2' 18309+3840 STF2338AC distance=2' 18309+3840 STF2338AE distance=2' 18316+3846 COU1604 distance=12' 18310+3857 FYM 40BE distance=19' 18310+3857 TDT 922Aa,Ab distance=19' 18310+3857 SLE 187AB distance=19' 18310+3857 FYM 40AC distance=19' 18310+3857 FYM 40AD distance=19' 18310+3857 FYM 40AE distance=19' 18329+3850 FYM 41BN distance=26' 18329+3850 STTA171AB distance=27' 18329+3850 SLE 200AC distance=27' 18329+3850 SLE 200AD distance=27' 18329+3850 SLE 200AE distance=27' 18329+3850 SLE 200AF distance=27' 18329+3850 STTA171AG distance=27' 18329+3850 FYM 41AH distance=27' 18329+3850 FYM 41AI distance=27' 18329+3850 FYM 41AJ distance=27' 18329+3850 FYM 41AK distance=27' 18329+3850 FYM 41AL distance=27' 18329+3850 FYM 41AM distance=27' 18298+3803 HU 1189 distance=38' 18343+3832 SLE 210 distance=42' 18272+3847 MLB 854 distance=43' 18301+3746 UC 3595 distance=53' 18297+3929 TDT 910 distance=53' 18298+3930 SLE 182 distance=54' 18323+3933 UC 3603 distance=58' 18335+3934 SLE 208AB distance=64' 18335+3934 SLE 208A,CD distance=64' 18335+3934 COU1606CD distance=65' 18362+3858 ES 2571 distance=66' 18367+3911 OL 14AB distance=67' 18367+3911 DAM 678AB,C distance=67' 18367+3841 FYM 506BC distance=68' 18367+3841 H 4 59AB distance=69' 18366+3859 MLB 755 distance=71' 18369+3846 STFB 9CD distance=71' 18369+3846 STF3136BC distance=72' 18369+3846 H 5 39AB (Vega) distance=72' 18369+3846 STFB 9AC (Vega) distance=72' 18369+3846 STFB 9AE (Vega) distance=72' 18369+3846 MET 11AF (Vega) distance=72' 18369+3846 MET 11AG (Vega) distance=72' 18369+3846 MET 11AH (Vega) distance=72' 18369+3846 MET 11A,Ia (Vega) distance=72' 18369+3846 MET 11A,Ib (Vega) distance=72' 18369+3846 MET 11AJ (Vega) distance=72' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 18309+3840 STF2338 CD 243 13.0
Show 18309+3840 STF2338 CE 69 60.7
Show 18309+3840 STF2338 AB 301 12.1 2
Show 18309+3840 STF2338 AC 206 76.4 2
Show 18309+3840 STF2338 AE 154 51.7 2
Show 18316+3846 COU1604 130 1.8 12
Show 18310+3857 FYM 40 BE 210 11.3 19
Show 18310+3857 TDT 922 Aa,Ab 15 0.5 19
Show 18310+3857 SLE 187 AB 210 23.6 19
Show 18310+3857 FYM 40 AC 85 71.0 19
Show 18310+3857 FYM 40 AD 294 13.5 19
Show 18310+3857 FYM 40 AE 210 34.9 19
Show 18329+3850 FYM 41 BN 87 41.9 26
Show 18329+3850 STTA171 AB 328 150.1 27
Show 18329+3850 SLE 200 AC 226 68.9 27
Show 18329+3850 SLE 200 AD 248 93.6 27
Show 18329+3850 SLE 200 AE 228 111.2 27
Show 18329+3850 SLE 200 AF 344 134.6 27
Show 18329+3850 STTA171 AG 133 80.7 27
Show 18329+3850 FYM 41 AH 349 74.6 27
Show 18329+3850 FYM 41 AI 349 81.5 27
Show 18329+3850 FYM 41 AJ 125 129.9 27
Show 18329+3850 FYM 41 AK 289 100.5 27
Show 18329+3850 FYM 41 AL 302 115.2 27
Show 18329+3850 FYM 41 AM 309 126.0 27
Show 18298+3803 HU 1189 210 1.4 38
Show 18343+3832 SLE 210 237 9.6 42
Show 18272+3847 MLB 854 9 6.8 43
Show 18301+3746 UC 3595 211 45.6 53
Show 18297+3929 TDT 910 196 0.8 53
Show 18298+3930 SLE 182 252 11.4 54
Show 18323+3933 UC 3603 311 54.4 58
Show 18335+3934 SLE 208 AB 81 13.2 64
Show 18335+3934 SLE 208 A,CD 3 63.5 64
Show 18335+3934 COU1606 CD 130 1.9 65
Show 18362+3858 ES 2571 70 6.8 66
Show 18367+3911 OL 14 AB 339 1.0 67
Show 18367+3911 DAM 678 AB,C 163 12.3 67
Show 18367+3841 FYM 506 BC 253 23.6 68
Show 18367+3841 H 4 59 AB 298 29.8 69
Show 18366+3859 MLB 755 100 9.3 71
Show 18369+3846 STFB 9 CD 28 23.5 71
Show 18369+3846 STF3136 BC 310 83.7 72
Show Vega 18369+3846 H 5 39 AB 185 84.5 72
Show Vega 18369+3846 STFB 9 AC 255 76.0 72
Show Vega 18369+3846 STFB 9 AE 40 84.3 72
Show Vega 18369+3846 MET 11 AF 103 22.3 72
Show Vega 18369+3846 MET 11 AG 92 22.3 72
Show Vega 18369+3846 MET 11 AH 96 27.7 72
Show Vega 18369+3846 MET 11 A,Ia 86 29.4 72
Show Vega 18369+3846 MET 11 A,Ib 86 29.9 72

 
 
WDS 18309+3840 : COMPONENTS
 
 
  A B C D
B pa=307.1°
sep=10.20"
 
C pa=206.5°
sep=76.57"
pa=199.2°
sep=79.08"
 
D pa=210.2°
sep=86.05"
pa=203.6°
sep=87.87"
pa=237.0°
sep=10.80"
 
E pa=159.1°
sep=49.71"
pa=153.8°
sep=58.62"
pa=67.0°
sep=56.47"
pa=65.4°
sep=67.13"
 
 
18309+3840 A
 
 
Coord arcsec 2000 183054.75+383933.8 Mag 9.3 Spectral class K2 (yellow-orange) PmRA -11.00
PmDE -7.0 Tycho2 3105-00683-1
Tycho2
Tycho2 3105-00683-1 Pflag RAmdeg 277.72815047 DEmdeg 38.65939668
PmRA -14.1 PmDE -4.7 E RAmdeg 20 E DEmdeg 21
E pmRA 2.1 E pmDE 2.0 EpRAm 1990.01 EpDEm 1989.69
Num 6 Q RAmdeg 0.9 Q DEmdeg 1.4 Q pmRA 1.0
Q pmDE 1.4 BTmag 10.953 E BTmag 0.052 VTmag 9.616
E VTmag 0.025 Prox 766 TYC T HIP
CCDM RAdeg 277.72819194 DEdeg 38.65940750 EpRA 1990 1.62
EpDE 1990 1.61 E RAdeg 19.5 E DEdeg 20.8 Posflg
Corr 0.1
 
 
18309+3840 B
 
 
Coord arcsec 2000 183054.06+383940.0 Mag 11.2 PmRA 0.00 PmDE -9.0
Calc delta mag 1.9 Calc coord yes
 
 
18309+3840 C
 
 
Var name KP Lyr Coord arcsec 2000 183051.83+383825.3 Coord calc 183051.83+383825.3 Mag 9.62
Spectral class Ma (red) PmRA 2.00 PmDE -7.0 Tycho2 3105-00726-1
Calc delta mag 0.32
Tycho2
Tycho2 3105-00726-1 Pflag RAmdeg 277.71598541 DEmdeg 38.64036481
PmRA -1.9 PmDE -4.4 E RAmdeg 15 E DEmdeg 16
E pmRA 2.0 E pmDE 2.0 EpRAm 1989.99 EpDEm 1990.05
Num 8 Q RAmdeg 1.1 Q DEmdeg 1.7 Q pmRA 1.0
Q pmDE 1.6 BTmag 11.050 E BTmag 0.055 VTmag 9.298
E VTmag 0.020 Prox 766 TYC T HIP
CCDM RAdeg 277.71599167 DEdeg 38.64037417 EpRA 1990 1.63
EpDE 1990 1.61 E RAdeg 15.8 E DEdeg 16.9 Posflg
Corr 0.1
 
 
18309+3840 D
 
 
Coord arcsec 2000 183051.06+383819.4 Mag 14.8 Calc delta mag 5.5 Calc coord yes
 
 
18309+3840 E
 
 
Coord arcsec 2000 183056.27+383847.4 Mag 13 Spectral class V PmRA 6.00
PmDE 9.0 Calc delta mag 3.7 Calc coord yes