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Doubles in session


Current system
12439+4950
BEM 1


Nearby doubles
10' : 12437+4942
TDS8505

20' : 12460+4949
STF1679AB

23' : 12417+4945
CVR 662

51' : 12407+5030
SLW 754

55' : 12412+5038
CBL 392

71' : 12384+4906
TDS8466

73' : 12508+5022
TDS8554

78' : 12463+5105
WIS 205

79' : 12420+5107
ES 728

83' : 12492+5055
ES 730

85' : 12524+5017
COU2188

100' : 12416+4814
LDS4251

100' : 12458+5129
DAM2484

111' : 12526+5103
COU2189

114' : 12378+4815
TDS8461

115' : 12442+5146
RDR 5

117' : 12524+4828
UC 2418

118' : 12383+4808
TDS8464

121' : 12523+4822
YSC 100

121' : 12544+5058
SLW 793

133' : 12496+5151
LDS3061

135' : 12579+4948
HU 641

136' : 12303+5023
LDS3047

137' : 12347+4808
ES 924

138' : 12328+4828
LDS4227

139' : 12427+4733
TDS8493



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Binary Systems
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Neglected List I
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

12439+4950 BEM 1

 
 
12h 43m 59.07s +49° 50' 40.4" P.A. 204.00 sep 9.6 mag 11.40,12.20
 
 
Coord 2000 12439+4950 Discov num BEM   1 Comp Coord arcsec 2000 12 43 59.07 +49 50 40.4
Date first 1899 Date last 2017 Obs 14
Pa first 203 Pa last 203.9 P.A. Now (θ) 203.9°
Sep first 9.4 Sep last 9.602 Sep. Now (ρ) 9.602"
Mag pri 11.40 Mag sec 12.20 delta mag (ΔM) 0.8 Spectral class
Pri motion ra -006 Sec motion ra -010
Pri motion dec +012 Sec motion dec +010
Notes
rPM=0.316
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Canes Venatici Tycho2 3458-00520-1 Gaia DR2 1567600463894157056
 
 
WDS 12439+4950 BEM 1 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Bem1925 orb - Bemporad, A. .
Bem1925 Rend. R. Acad. Lincei 11, 315, 1925
Bem1932a Pa - Bemporad, A. .
Bem1932a Rend. R. Acad. Lincei 16, 10, 1932
Bem1932b Pa j Bemporad, A. 1932AN....244..353B
Bem1932b AN 244, 353, 1932
Bem1932c Pa j Bemporad, A. 1932AN....246...23B
Bem1932c AN 246, 23, 1932
Bem1933 Pa j Bemporad, A. 1933AN....248...29B
Bem1933 AN 248, 29, 1933
Bem1934 Pa - Bemporad, A. 1934AN....254...37B
Bem1934 AN 254, 37, 1934
Bem1938 Pa - Bemporad, A. .
Bem1938 Contr. Astrofis. Catania 42, 1938
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12439+4950 BEM 1 1999 3 203 9.6 11.44 10.70 D 124359.07+495040.4
12439+4950 BEM 1 2003 4 203 9.6 11.44 10.70 D 124359.07+495040.4
12439+4950 BEM 1 2011 6 203 9.6 11.44 10.70 124359.07+495040.4
12439+4950 BEM 1 2017 8 204 9.6 11.40 12.20 124359.07+495040.4

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

 
 
WDS 12439+4950 BEM 1 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 12439+4950 BEM 1 : MEASURES
 
 
No records found.

 
 
WDS 12439+4950 : VIRTUAL EYEPIECE
 
 

12439+4950 BEM 1A mag 11.4 12439+4950 BEM 1B sep 9.1 P.A. 195.90 mag 12.2 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 12439+4950 : ALADIN DSS IMAGE @ 12h 43m 59.07s +49° 50' 40.4"
 
 
 
 
WDS 12439+4950 BEM 1 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

12439+4950 BEM 1 distance=0' 12437+4942 TDS8505 distance=10' 12460+4949 STF1679AB distance=20' 12460+4949 STF1679AC distance=20' 12417+4945 CVR 662 distance=23' 12407+5030 SLW 754 distance=51' 12412+5038 CBL 392 distance=55' 12384+4906 TDS8466 distance=71' 12508+5022 TDS8554 distance=73' 12463+5105 WIS 205 distance=78' 12420+5107 ES 728 distance=79' 12492+5055 ES 730 distance=83' 12524+5017 COU2188 distance=85' 12416+4814 LDS4251 distance=100' 12458+5129 DAM2484 distance=100' 12526+5103 COU2189 distance=111' 12378+4815 TDS8461 distance=114' 12417+5543 SHY 236BE distance=114' 12442+5146 RDR 5 distance=115' 12524+4828 UC 2418 distance=117' 12383+4808 TDS8464 distance=118' 12523+4822 YSC 100 distance=121' 12544+5058 SLW 793 distance=121' 12496+5151 LDS3061 distance=133' 12579+4948 HU 641 distance=135' 12303+5023 LDS3047 distance=136' 12347+4808 ES 924 distance=137' 12328+4828 LDS4227 distance=138' 12427+4733 TDS8493 distance=139' 12397+4737 TDS8476 distance=141' 12586+4951 HEI 163 distance=142' 12591+5008 KPP1873 distance=147' 12586+4916 BVD 225 distance=147' 12317+4824 KPP1488 distance=149' 12332+4802 TDS8432 distance=152' 12452+4717 BVD 224 distance=154' 12500+4727 TDS8543 distance=156' 12421+5227 LDS3055 distance=159' 13001+5027 LEP 135 distance=159' 12288+5056 LDS3045 distance=160' 12595+4901 BEM 3 distance=160' 12522+4733 CVR 668 distance=160' 12397+5228 TDS8475 distance=163' 12482+4714 LHS2637 distance=163' 12271+5017 WIS 203 distance=165' 12363+4724 TDS8454 distance=166' 12300+5132 BUP 143AB distance=167' 12300+5132 BUP 143AC distance=167' 12300+5132 LEP 56AD distance=167' 13012+4938 OSW 54 distance=167' 13008+4908 CVR 676 distance=170' 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 12439+4950 BEM 1 204 9.6
Show 12437+4942 TDS8505 175 0.5 10
Show 12460+4949 STF1679 AB 208 5.9 20
Show 12460+4949 STF1679 AC 37 69.1 20
Show 12417+4945 CVR 662 53 14.7 23
Show 12407+5030 SLW 754 10 75.2 51
Show 12412+5038 CBL 392 138 13.1 55
Show 12384+4906 TDS8466 183 0.5 71
Show 12508+5022 TDS8554 34 0.4 73
Show 12463+5105 WIS 205 173 999.9 78
Show 12420+5107 ES 728 332 6.3 79
Show 12492+5055 ES 730 63 3.6 83
Show 12524+5017 COU2188 46 0.3 85
Show 12416+4814 LDS4251 169 19.8 100
Show 12458+5129 DAM2484 342 2.3 100
Show 12526+5103 COU2189 100 0.9 111
Show 12378+4815 TDS8461 159 0.6 114
Show 12417+5543 SHY 236 BE 350 999.9 114
Show 12442+5146 RDR 5 281 2.3 115
Show 12524+4828 UC 2418 268 44.0 117
Show 12383+4808 TDS8464 147 0.4 118
Show 12523+4822 YSC 100 145 0.3 121
Show 12544+5058 SLW 793 128 32.9 121
Show 12496+5151 LDS3061 4 141.0 133
Show 12579+4948 HU 641 300 0.1 135
Show 12303+5023 LDS3047 190 96.8 136
Show 12347+4808 ES 924 218 4.1 137
Show 12328+4828 LDS4227 299 8.1 138
Show 12427+4733 TDS8493 133 0.5 139
Show 12397+4737 TDS8476 94 0.6 141
Show 12586+4951 HEI 163 234 1.0 142
Show 12591+5008 KPP1873 260 14.6 147
Show 12586+4916 BVD 225 143 20.4 147
Show 12317+4824 KPP1488 61 11.2 149
Show 12332+4802 TDS8432 187 2.6 152
Show 12452+4717 BVD 224 125 18.4 154
Show 12500+4727 TDS8543 219 0.5 156
Show 12421+5227 LDS3055 8 13.8 159
Show 13001+5027 LEP 135 63 4.6 159
Show 12288+5056 LDS3045 169 18.0 160
Show 12595+4901 BEM 3 205 18.1 160
Show 12522+4733 CVR 668 100 27.0 160
Show 12397+5228 TDS8475 195 0.6 163
Show 12482+4714 LHS2637 169 0.8 163
Show 12271+5017 WIS 203 123 167.2 165
Show 12363+4724 TDS8454 90 0.5 166
Show 12300+5132 BUP 143 AB 157 120.6 167
Show 12300+5132 BUP 143 AC 333 217.5 167
Show 12300+5132 LEP 56 AD 182 587.7 167
Show 13012+4938 OSW 54 51 83.0 167
Show 13008+4908 CVR 676 246 14.8 170

 
 
WDS 12439+4950 : COMPONENTS
 
 
  A
B pa=195.9°
sep=9.13"
 
 
12439+4950 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 124359.07+495040.4 Mag 11.4 PmRA -6.00
PmDE 12.0 Tycho2 3458-00520-1
Tycho2
Tycho2 3458-00520-1 Pflag RAmdeg 190.99611877 DEmdeg 49.84456969
PmRA 1.4 PmDE 25.1 E RAmdeg 44 E DEmdeg 44
E pmRA 3.7 E pmDE 3.4 EpRAm 1989.97 EpDEm 1989.69
Num 2 Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 11.893 E BTmag 0.070 VTmag 11.438
E VTmag 0.074 Prox 999 TYC T HIP
CCDM RAdeg 190.99611389 DEdeg 49.84451111 EpRA 1990 1.60
EpDE 1990 1.59 E RAdeg 43.7 E DEdeg 43.9 Posflg
Corr -0.2
 
 
12439+4950 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 124358.81+495031.6 Mag 12.2 PmRA -10.00
PmDE 10.0 Calc delta mag 0.8 Calc coord yes