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Doubles in session


Current system
20056+6342
STF 2642 AB
HD 191310


Nearby doubles
5' : 20052+6346
BU 470

13' : 20047+6353
STF2640AB

20' : 20034+6330
STF2632

20' : 20085+6346
STI 947

26' : 20086+6328
STI 948

33' : 20035+6412
TDT1939

37' : 20010+6323
STI 940

40' : 20012+6409
UC 4066

48' : 20102+6419
STI 950

53' : 20042+6434
BU 1479

54' : 19579+6326
HU 955

56' : 20137+6353
LDS2449

58' : 19579+6258
HJ 2923AB

60' : 19567+6347
DAM 311

60' : 19567+6346
VAT 5

60' : 20023+6438
STTA200AB

63' : 19563+6337
UC 4055

64' : 20119+6431
STF2660

69' : 19582+6430
UC 4059

71' : 20154+6412
MLR 60AB

73' : 20015+6449
H 6 38AB

74' : 20142+6429
STI 958

75' : 19545+6330
STI 935

75' : 19573+6253
HDS2841

77' : 19546+6408
AG 394

78' : 20081+6227
STI 946



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.

20056+6342 STF 2642 AB (HD 191310)

 
 
20h 05m 35.38s +63° 42' 19.5" P.A. 191.00 sep 1.8 mag 9.34,9.41 Sp G0 dist. 68.26 pc (222.66 l.y.)
 
 
Coord 2000 20056+6342 Discov num STF2642 Comp AB Coord arcsec 2000 20 05 35.38 +63 42 19.5
Date first 1832 Date last 2019 Obs 88
Pa first 165 Pa last 190.8 P.A. Now (θ) 190.8°
Sep first 2.5 Sep last 1.76 Sep. Now (ρ) 1.76"
Mag pri 9.34 Mag sec 9.41 delta mag (ΔM) 0.07 Spectral class G0 (yellow)
Pri motion ra +204 Sec motion ra +204
Pri motion dec +150 Sec motion dec +150
Notes
Nature of this double is uncertain.
 
 
20056+6342 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 191310 18703 20 05 35 +63 42 20 STF 2642 AB 2019 88 191 1.8 9.34 9.41 0.07 <===
Show 18703 20 05 35 +63 42 20 STF 2642 AC 2003 4 34 68.6 9.34 12.59 3.25
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 191310 Constellation Draco SAO 18703 HIP 98967
Tycho2 4236-02482-1 Gaia DR2 2244314823859249536 HD 191310 GC 27913
BD BD+63 1595 Distance 68.26 Distance ly 222.66
 
 
WDS 20056+6342 STF 2642 AB (HD 191310) : NOTES
 
 
No records found.

 
 
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
20056+6342 STF2642 AB 1999 61 187 1.9 9.34 9.41 G0 D 200535.00+634217.7
20056+6342 STF2642 AB 2009 62 189 1.8 9.34 9.41 G0 D 200535.00+634217.7
20056+6342 STF2642 AB 2012 69 190 1.8 9.34 9.41 G0 D 200535.00+634217.7
20056+6342 STF2642 AB 2016 77 191 1.8 9.34 9.41 G0 200535.38+634219.5
20056+6342 STF2642 AB 2019 87 191 1.8 9.34 9.41 G0 200535.38+634219.5

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

 
 
WDS 20056+6342 STF 2642 AB (HD 191310) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20056+6342 STF 2642 AB (HD 191310) : MEASURES
 
 
No records found.

 
 
WDS 20056+6342 (HD 191310) : VIRTUAL EYEPIECE
 
 

20056+6342 STF2642A mag 9.34 Sp G0 20056+6342 STF2642B sep 1.7 P.A. 184.80 mag 9.41 20056+6342 STF2642C sep 59.6 P.A. 16.40 mag 12.59 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 20056+6342 (HD 191310) : ALADIN DSS IMAGE @ 20h 05m 35.38s +63° 42' 19.5"
 
 
 
 
WDS 20056+6342 STF 2642 AB (HD 191310) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20056+6342 STF2642AB distance=0' 20052+6346 BU 470 distance=5' 20047+6353 STF2640AB distance=13' 20047+6353 STF2640AC distance=13' 20034+6330 STF2632 distance=20' 20085+6346 STI 947 distance=20' 20086+6328 STI 948 distance=26' 20035+6412 TDT1939 distance=33' 20010+6323 STI 940 distance=37' 20012+6409 UC 4066 distance=40' 20102+6419 STI 950 distance=48' 20042+6434 BU 1479 distance=53' 19579+6326 HU 955 distance=54' 20137+6353 LDS2449 distance=56' 19579+6258 HJ 2923AB distance=58' 19567+6347 DAM 311 distance=60' 19567+6346 VAT 5 distance=60' 20023+6438 STTA200AB distance=60' 20023+6438 STTA200AC distance=60' 19563+6337 UC 4055 distance=63' 20119+6431 STF2660 distance=64' 19582+6430 UC 4059 distance=69' 19579+6258 BU 9035CD distance=69' 20154+6412 MLR 60AB distance=71' 20154+6412 LDS5245AC distance=71' 20154+6412 SHY 772AD distance=71' 20015+6449 H 6 38AB distance=73' 20142+6429 STI 958 distance=74' 19545+6330 STI 935 distance=75' 19573+6253 HDS2841 distance=75' 19546+6408 AG 394 distance=77' 20081+6227 STI 946 distance=78' 20043+6225 STI 943 distance=78' 20080+6225 BVD 335 distance=80' 20171+6410 STI 961 distance=82' 20178+6343 STI 962 distance=82' 20129+6236 STI 954 distance=83' 19530+6352 HU 954 distance=84' 19528+6337 MLR 51 distance=85' 20097+6220 ES 1853 distance=87' 20067+6214 TOR 22 distance=88' 19528+6411 STF2604 distance=89' 20030+6215 STI 942 distance=89' 20074+6511 HJL1102 distance=90' 20014+6217 MLR 13 distance=91' 20185+6313 HJ 2958 distance=92' 20023+6515 STI 941 distance=95' 20198+6333 LDS2451 distance=96' 19547+6240 UC 4052 distance=97' 19510+6353 UC 4038 distance=98' 20109+6211 LDS2789 distance=98' 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 20056+6342 STF2642 AB 191 1.8
Show 20056+6342 STF2642 AC 34 68.6
Show 20052+6346 BU 470 210 2.6 5
Show 20047+6353 STF2640 AB 14 5.7 13
Show 20047+6353 STF2640 AC 81 153.0 13
Show 20034+6330 STF2632 299 26.2 20
Show 20085+6346 STI 947 320 11.1 20
Show 20086+6328 STI 948 321 17.9 26
Show 20035+6412 TDT1939 330 0.8 33
Show 20010+6323 STI 940 69 14.1 37
Show 20012+6409 UC 4066 95 15.8 40
Show 20102+6419 STI 950 200 6.5 48
Show 20042+6434 BU 1479 46 43.0 53
Show 19579+6326 HU 955 338 3.0 54
Show 20137+6353 LDS2449 165 24.9 56
Show 19579+6258 HJ 2923 AB 351 28.5 58
Show 19567+6347 DAM 311 70 9.5 60
Show 19567+6346 VAT 5 215 6.4 60
Show 20023+6438 STTA200 AB 332 98.9 60
Show 20023+6438 STTA200 AC 190 27.0 60
Show 19563+6337 UC 4055 134 61.1 63
Show 20119+6431 STF2660 166 22.3 64
Show 19582+6430 UC 4059 43 8.6 69
Show 19579+6258 BU 9035 CD 237 47.2 69
Show 20154+6412 MLR 60 AB 173 0.2 71
Show 20154+6412 LDS5245 AC 122 20.0 71
Show 20154+6412 SHY 772 AD 247 999.9 71
Show 20015+6449 H 6 38 AB 171 193.1 73
Show 20142+6429 STI 958 6 7.3 74
Show 19545+6330 STI 935 31 11.0 75
Show 19573+6253 HDS2841 21 0.1 75
Show 19546+6408 AG 394 274 22.1 77
Show 20081+6227 STI 946 302 5.3 78
Show 20043+6225 STI 943 78 13.5 78
Show 20080+6225 BVD 335 39 9.7 80
Show 20171+6410 STI 961 179 6.7 82
Show 20178+6343 STI 962 182 14.9 82
Show 20129+6236 STI 954 286 9.4 83
Show 19530+6352 HU 954 214 0.1 84
Show 19528+6337 MLR 51 243 1.3 85
Show 20097+6220 ES 1853 293 4.3 87
Show 20067+6214 TOR 22 316 14.9 88
Show 19528+6411 STF2604 182 28.0 89
Show 20030+6215 STI 942 93 9.4 89
Show 20074+6511 HJL1102 123 126.7 90
Show 20014+6217 MLR 13 231 0.3 91
Show 20185+6313 HJ 2958 316 9.5 92
Show 20023+6515 STI 941 96 11.7 95
Show 20198+6333 LDS2451 85 25.4 96
Show 19547+6240 UC 4052 95 85.4 97
Show 19510+6353 UC 4038 338 11.4 98

 
 
WDS 20056+6342 : COMPONENTS
 
 
  A B
B pa=184.8°
sep=1.73"
 
C pa=16.4°
sep=59.56"
pa=16.1°
sep=61.26"
 
 
20056+6342 A
 
 
Name HD 191310 Coord arcsec 2000 200535.38+634219.5 Mag 9.34 Spectral class G0 (yellow)
PmRA 204.00 PmDE 150.0 SAO 18703 HIP 98967
Tycho2 4236-02482-1 HD 191310 GC 27913 BD BD+63 1595
Tycho2
Tycho2 4236-02482-1 Pflag P RAmdeg 301.39688542 DEmdeg 63.70503369
PmRA 202.8 PmDE 152.3 E RAmdeg 14 E DEmdeg 13
E pmRA 3.8 E pmDE 4.1 EpRAm 1991.50 EpDEm 1991.60
Num 3 Q RAmdeg 1.7 Q DEmdeg 0.0 Q pmRA 1.7
Q pmDE 0.0 BTmag 10.127 E BTmag 0.027 VTmag 9.344
E VTmag 0.019 Prox 19 TYC T HIP 98967
CCDM A RAdeg 301.39589444 DEdeg 63.70493111 EpRA 1990 1.68
EpDE 1990 1.73 E RAdeg 13.5 E DEdeg 13.3 Posflg D
Corr 0.0
SAO
SAO 18703 DelFlag RA1950 PmRA1950 0.0302
DE1950 PmDE1950 0.16 Vmag 8 SpType G0
Double code Source 70 CatNum 27913 DM BD+63 1595
DMcomp BDsup HD 191310 M HD 0
GC 27913 RA1950rad 5.25744755 DE1950rad 1.10930388 PmRA2000 0.0307
PmDE2000 0.159
Hipparcos
Catalog H HIP 98967 Proxy H RAhms 20 05 35.00
DEdms +63 42 17.7 Vmag 8.57 VarFlag R Vmag H
RAdeg 301.396 DEdeg 63.7049 AstroRef A Plx 14.04
CCDM 20056+6343 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 186 Rho 1.901 HD 191310 BD BD+63 1595
CD CP Dm number +63 1595 VIred 0.69
SpType G0 R SpType Coord arcsec 2000 200535.00+634217.7
Hipparcos 2
HIP 98967 Sn 15 So 3 Nc 2
RArad 5.2603496547 DErad 1.1118605441 Plx 14.65 PmRA 202.61
PmDE 146.85 E RArad 1.13 E DErad 1.4 E Plx 1.17
E pmRA 1.42 E pmDE 2.03 Hpmag 8.7073 E Hpmag 0.002
SHp 0.016 VA 0 BV 0.637 E BV 0.029
VI 0.7
 
 
20056+6342 B
 
 
Coord arcsec 2000 200535.36+634217.8 Mag 9.41 PmRA 204.00 PmDE 150.0
HIP 98967 Tycho2 4236-02482-2 Calc delta mag 0.07 Calc coord yes
Tycho2
Tycho2 4236-02482-2 Pflag P RAmdeg 301.39688542 DEmdeg 63.70503369
PmRA 202.8 PmDE 152.3 E RAmdeg 14 E DEmdeg 13
E pmRA 3.8 E pmDE 4.1 EpRAm 1991.50 EpDEm 1991.60
Num 3 Q RAmdeg 1.7 Q DEmdeg 0.0 Q pmRA 1.7
Q pmDE 0.0 BTmag 10.179 E BTmag 0.029 VTmag 9.415
E VTmag 0.021 Prox 19 TYC T HIP 98967
CCDM B RAdeg 301.39575389 DEdeg 63.70441333 EpRA 1990 1.67
EpDE 1990 1.73 E RAdeg 14.8 E DEdeg 14.5 Posflg D
Corr -0.1
Hipparcos
Catalog H HIP 98967 Proxy H RAhms 20 05 35.00
DEdms +63 42 17.7 Vmag 8.57 VarFlag R Vmag H
RAdeg 301.396 DEdeg 63.7049 AstroRef A Plx 14.04
CCDM 20056+6343 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 186 Rho 1.901 HD 191310 BD BD+63 1595
CD CP Dm number +63 1595 VIred 0.69
SpType G0 R SpType Coord arcsec 2000 200535.00+634217.7
Hipparcos 2
HIP 98967 Sn 15 So 3 Nc 2
RArad 5.2603496547 DErad 1.1118605441 Plx 14.65 PmRA 202.61
PmDE 146.85 E RArad 1.13 E DErad 1.4 E Plx 1.17
E pmRA 1.42 E pmDE 2.03 Hpmag 8.7073 E Hpmag 0.002
SHp 0.016 VA 0 BV 0.637 E BV 0.029
VI 0.7
 
 
20056+6342 C
 
 
Coord arcsec 2000 200537.91+634316.6 Mag 12.59 PmRA -2.00 PmDE -3.0
Calc delta mag 3.25 Calc coord yes