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Current system
20370+1203
STF 2701
HD 196423


Nearby doubles
21' : 20372+1143
BPM2210

22' : 20372+1224
BPM2209

28' : 20373+1230
UC 4235

34' : 20375+1130
BPM2213

35' : 20387+1139
GWP2975

40' : 20344+1153
LDS4851

42' : 20350+1134
BRT3358

45' : 20340+1206
MAD 8

46' : 20345+1138
J 142

47' : 20372+1250
A 1680

48' : 20354+1121
YR 16

50' : 20386+1120
J 1242

52' : 20391+1243
BPM2218

52' : 20385+1118
J 1073

52' : 20337+1222
BPM2187

53' : 20349+1120
TDT2394

54' : 20348+1121
J 1344

55' : 20404+1143
UC 4253

57' : 20396+1120
BPM2221

59' : 20364+1105
UC 4230

59' : 20410+1206
HEI 587

60' : 20402+1126
BPM2224

60' : 20340+1244
TDT2378

63' : 20329+1142
J 1AB

64' : 20346+1255
BPM2193

64' : 20399+1115
ENG 75AB



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.

20370+1203 STF 2701 (HD 196423)

 
 
20h 36m 58.85s +12° 02' 55.3" P.A. 221.00 sep 2.1 mag 8.32,8.59 Sp G5 dist. 117.65 pc (383.77 l.y.)
 
 
Coord 2000 20370+1203 Discov num STF2701 Comp Coord arcsec 2000 20 36 58.85 +12 02 55.3
Date first 1829 Date last 2016 Obs 94
Pa first 219 Pa last 220.7 P.A. Now (θ) 220.7°
Sep first 2.1 Sep last 2.084 Sep. Now (ρ) 2.084"
Mag pri 8.32 Mag sec 8.59 delta mag (ΔM) 0.27 Spectral class G5 (yellow)
Pri motion ra +043 Sec motion ra +043
Pri motion dec -031 Sec motion dec -031
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 196423 Constellation Delphinus SAO 106305 HIP 101710
Tycho2 1096-01542-2 Gaia DR2 1755466490947446272 HD 196423 GC 28696
BD BD+11 4331 Distance 117.65 Distance ly 383.77
 
 
WDS 20370+1203 STF 2701 (HD 196423) : 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
20370+1203 STF2701 2005 100 221 2.1 8.32 8.59 G5 D 203658.85+120255.3
20370+1203 STF2701 2006 101 221 2.1 8.32 8.59 G5 D 203658.85+120255.3
20370+1203 STF2701 2009 102 221 2.0 8.32 8.59 G5 D 203658.85+120255.3
20370+1203 STF2701 2012 92 221 2.1 8.32 8.59 G5 D 203658.85+120255.3
20370+1203 STF2701 2016 92 221 2.1 8.32 8.59 G5 203658.85+120255.3

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

 
 
WDS 20370+1203 STF 2701 (HD 196423) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20370+1203 STF 2701 (HD 196423) : MEASURES
 
 
No records found.

 
 
WDS 20370+1203 (HD 196423) : VIRTUAL EYEPIECE
 
 

20370+1203 STF2701A mag 8.32 Sp G5 20370+1203 STF2701B sep 2.1 P.A. 220.10 mag 8.59 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 20370+1203 (HD 196423) : ALADIN DSS IMAGE @ 20h 36m 58.85s +12° 02' 55.3"
 
 
 
 
WDS 20370+1203 STF 2701 (HD 196423) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20370+1203 STF2701 distance=0' 20372+1143 BPM2210 distance=21' 20372+1224 BPM2209 distance=22' 20373+1230 UC 4235 distance=28' 20375+1130 BPM2213 distance=34' 20387+1139 GWP2975 distance=35' 20344+1153 LDS4851 distance=40' 20350+1134 BRT3358 distance=42' 20340+1206 MAD 8 distance=45' 20345+1138 J 142 distance=46' 20372+1250 A 1680 distance=47' 20354+1121 YR 16 distance=48' 20386+1120 J 1242 distance=50' 20391+1243 BPM2218 distance=52' 20385+1118 J 1073 distance=52' 20337+1222 BPM2187 distance=52' 20349+1120 TDT2394 distance=53' 20348+1121 J 1344 distance=54' 20404+1143 UC 4253 distance=55' 20396+1120 BPM2221 distance=57' 20364+1105 UC 4230 distance=59' 20410+1206 HEI 587 distance=59' 20402+1126 BPM2224 distance=60' 20340+1244 TDT2378 distance=60' 20329+1142 J 1AB distance=63' 20329+1142 UC 4212AC distance=63' 20346+1255 BPM2193 distance=64' 20399+1115 ENG 75AB distance=64' 20399+1115 CVN 17Aa,Ab distance=64' 20399+1115 TOK 631AC distance=64' 20405+1240 HEI 278 distance=65' 20327+1151 BPM2184 distance=65' 20402+1248 BPM2223 distance=65' 20414+1157 TDT2472 distance=66' 20324+1202 GRV 351 distance=67' 20362+1311 BPM2202 distance=69' 20321+1220 HJ 1528 distance=72' 20393+1101 J 2603 distance=72' 20392+1059 SCJ 27AB distance=73' 20392+1059 SCJ 27AC distance=73' 20339+1106 TDT2376 distance=73' 20401+1105 GWP2979 distance=74' 20419+1150 HEI 588 distance=74' 20375+1050 HEI 586 distance=74' 20420+1212 BPM2231 distance=74' 20391+1055 UC 4243 distance=75' 20356+1315 BPM2201 distance=76' 20418+1231 STF2715 distance=76' 20396+1310 J 912 distance=78' 20316+1150 J 3 distance=81' 20383+1043 BU 1491 distance=82' 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 20370+1203 STF2701 221 2.1
Show 20372+1143 BPM2210 203 101.9 21
Show 20372+1224 BPM2209 213 61.9 22
Show 20373+1230 UC 4235 132 44.9 28
Show 20375+1130 BPM2213 275 91.7 34
Show 20387+1139 GWP2975 166 5.8 35
Show 20344+1153 LDS4851 328 4.4 40
Show 20350+1134 BRT3358 288 1.9 42
Show 20340+1206 MAD 8 245 20.9 45
Show 20345+1138 J 142 242 6.5 46
Show 20372+1250 A 1680 295 3.8 47
Show 20354+1121 YR 16 278 0.7 48
Show 20386+1120 J 1242 205 5.2 50
Show 20391+1243 BPM2218 252 64.4 52
Show 20385+1118 J 1073 112 5.3 52
Show 20337+1222 BPM2187 283 103.7 52
Show 20349+1120 TDT2394 2 0.5 53
Show 20348+1121 J 1344 103 2.5 54
Show 20404+1143 UC 4253 315 19.7 55
Show 20396+1120 BPM2221 275 70.3 57
Show 20364+1105 UC 4230 173 19.0 59
Show 20410+1206 HEI 587 36 1.2 59
Show 20402+1126 BPM2224 331 104.0 60
Show 20340+1244 TDT2378 129 1.4 60
Show 20329+1142 J 1 AB 63 2.1 63
Show 20329+1142 UC 4212 AC 256 27.7 63
Show 20346+1255 BPM2193 288 103.8 64
Show 20399+1115 ENG 75 AB 6 182.2 64
Show 20399+1115 CVN 17 Aa,Ab 36 0.5 64
Show 20399+1115 TOK 631 AC 142 947.9 64
Show 20405+1240 HEI 278 135 3.4 65
Show 20327+1151 BPM2184 293 59.7 65
Show 20402+1248 BPM2223 290 95.3 65
Show 20414+1157 TDT2472 309 0.5 66
Show 20324+1202 GRV 351 12 70.6 67
Show 20362+1311 BPM2202 129 111.9 69
Show 20321+1220 HJ 1528 237 10.2 72
Show 20393+1101 J 2603 354 1.8 72
Show 20392+1059 SCJ 27 AB 262 6.2 73
Show 20392+1059 SCJ 27 AC 78 14.1 73
Show 20339+1106 TDT2376 76 0.8 73
Show 20401+1105 GWP2979 215 7.5 74
Show 20419+1150 HEI 588 293 2.3 74
Show 20375+1050 HEI 586 220 0.6 74
Show 20420+1212 BPM2231 330 108.9 74
Show 20391+1055 UC 4243 50 16.2 75
Show 20356+1315 BPM2201 7 74.2 76
Show 20418+1231 STF2715 2 12.4 76
Show 20396+1310 J 912 125 1.8 78
Show 20316+1150 J 3 130 2.1 81
Show 20383+1043 BU 1491 87 3.2 82

 
 
WDS 20370+1203 : COMPONENTS
 
 
  A
B pa=220.1°
sep=2.06"
 
 
20370+1203 A
 
 
Componente originario normalizzato AB Name HD 196423 Coord arcsec 2000 203658.85+120255.3 Mag 8.32
Spectral class G5 (yellow) PmRA 43.00 PmDE -31.0 SAO 106305
HIP 101710 Tycho2 1096-01542-2 HD 196423 GC 28696
BD BD+11 4331
Tycho2
Tycho2 1096-01542-2 Pflag P RAmdeg 309.24521461 DEmdeg 12.04870807
PmRA 43.0 PmDE -30.5 E RAmdeg 7 E DEmdeg 9
E pmRA 1.4 E pmDE 1.4 EpRAm 1991.40 EpDEm 1990.81
Num 6 Q RAmdeg 1.4 Q DEmdeg 1.6 Q pmRA 1.4
Q pmDE 1.6 BTmag 9.355 E BTmag 0.021 VTmag 8.321
E VTmag 0.013 Prox 21 TYC T HIP 101710
CCDM A RAdeg 309.24534028 DEdeg 12.04904083 EpRA 1990 1.70
EpDE 1990 1.34 E RAdeg 6.8 E DEdeg 9.0 Posflg D
Corr -0.1
SAO
SAO 106305 DelFlag RA1950 PmRA1950 0.0031
DE1950 PmDE1950 -0.033 Vmag 7.3 SpType G5
Double code Source 70 CatNum 28696 DM BD+11 4331
DMcomp BDsup HD 196423 M HD 0
GC 28696 RA1950rad 5.38695834 DE1950rad 0.20723973 PmRA2000 0.0032
PmDE2000 -0.036
Hipparcos
Catalog H HIP 101710 Proxy H RAhms 20 36 58.88
DEdms +12 02 56.6 Vmag 7.62 VarFlag R Vmag H
RAdeg 309.245 DEdeg 12.049 AstroRef A Plx 10.79
CCDM 20370+1203 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 221 Rho 2.088 HD 196423 BD BD+11 4331
CD CP Dm number +11 4331 VIred 0.67
SpType G5 R SpType Coord arcsec 2000 203658.88+120256.6
Hipparcos 2
HIP 101710 Sn 15 So 3 Nc 2
RArad 5.3973492867 DErad 0.2102954856 Plx 8.5 PmRA 41.78
PmDE -27.89 E RArad 1.08 E DErad 0.79 E Plx 1.45
E pmRA 1.6 E pmDE 0.82 Hpmag 7.7572 E Hpmag 0.0013
SHp 0.013 VA 0 BV 0.674 E BV 0.018
VI 0.73
CCDM
Ccdm 20370+1203 RComp Comp A Note1
Note2 Discov num DRAs -1.17 DDEs -4.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.7 Sp G5 PmNote *
PmRA 41 PmDE -29 Dm number +11 4331 Cat1 BD
Name2 +11 2526 Cat2 AGK2/3 HD 196423 M HD
ADS BDS A14063 M ADS BDS N IDS IDS 20322N1142A
HIC 101710
 
 
20370+1203 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 203658.76+120253.7 Mag 8.59 PmRA 43.00
PmDE -31.0 HIP 101710 Tycho2 1096-01542-1 Calc delta mag 0.27
Calc coord yes
Tycho2
Tycho2 1096-01542-1 Pflag P RAmdeg 309.24521461 DEmdeg 12.04870807
PmRA 43.0 PmDE -30.5 E RAmdeg 7 E DEmdeg 9
E pmRA 1.4 E pmDE 1.4 EpRAm 1991.40 EpDEm 1990.81
Num 6 Q RAmdeg 1.4 Q DEmdeg 1.6 Q pmRA 1.4
Q pmDE 1.6 BTmag 9.141 E BTmag 0.019 VTmag 8.587
E VTmag 0.015 Prox 21 TYC T HIP 101710
CCDM B RAdeg 309.24495639 DEdeg 12.04860194 EpRA 1990 1.70
EpDE 1990 1.33 E RAdeg 7.4 E DEdeg 9.9 Posflg D
Corr -0.1
Hipparcos
Catalog H HIP 101710 Proxy H RAhms 20 36 58.88
DEdms +12 02 56.6 Vmag 7.62 VarFlag R Vmag H
RAdeg 309.245 DEdeg 12.049 AstroRef A Plx 10.79
CCDM 20370+1203 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 221 Rho 2.088 HD 196423 BD BD+11 4331
CD CP Dm number +11 4331 VIred 0.67
SpType G5 R SpType Coord arcsec 2000 203658.88+120256.6
Hipparcos 2
HIP 101710 Sn 15 So 3 Nc 2
RArad 5.3973492867 DErad 0.2102954856 Plx 8.5 PmRA 41.78
PmDE -27.89 E RArad 1.08 E DErad 0.79 E Plx 1.45
E pmRA 1.6 E pmDE 0.82 Hpmag 7.7572 E Hpmag 0.0013
SHp 0.013 VA 0 BV 0.674 E BV 0.018
VI 0.73
CCDM
Ccdm 20370+1203 RComp Comp B Note1
Note2 Discov num STF2701 DRAs DDEs
R dRAs Year 1829 Theta 221 Rho 2.1
Obs 99 Vmag 9.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14063 M ADS BDS N IDS IDS 20322N1142B
HIC 101710