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Current system
00240+4912
HDS 55
HD 1940


Nearby doubles
20' : 00220+4913
SKF1600AB

21' : 00234+4932
TDS1434

29' : 00216+4856
HU 505

30' : 00259+4849
LDS3167

34' : 00205+4911
ES 1197

36' : 00212+4850
ES 1198

45' : 00196+4900
COU2001

48' : 00202+4842
TDS1407

49' : 00245+5000
TDS1446

51' : 00241+5002
TDS1440

55' : 00221+4822
J 9001

55' : 00223+4820
J 2384

57' : 00272+4959
STF 30AB

58' : 00298+4915
HU 508

58' : 00184+4930
ES 41

60' : 00306+4919
OL 86

62' : 00278+5001
HU 507AB

65' : 00177+4934
TDS 9

68' : 00309+4917
ES 1129

69' : 00290+4825
HDS 64

71' : 00251+4803
HDS 56AB

75' : 00315+4904
HU 509AB

77' : 00162+4915
FOX 104AB

78' : 00204+4802
LDS3153

79' : 00175+4957
LDS3147

79' : 00248+5030
KPP1866



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

00240+4912 HDS 55 (HD 1940)

 
 
00h 23m 58.66s +49° 12' 05.2" P.A. 314.00 sep 0.1 mag 8.76,10.83 Sp A0 dist. 520.83 pc (1698.95 l.y.)
 
 
Coord 2000 00240+4912 Discov num HDS  55 Comp Coord arcsec 2000 00 23 58.66 +49 12 05.2
Date first 1991 Date last 2014 Obs 2
Pa first 254 Pa last 313.6 P.A. Now (θ) 313.6°
Sep first 0.2 Sep last 0.149 Sep. Now (ρ) 0.149"
Mag pri 8.76 Mag sec 10.83 delta mag (ΔM) 2.07 Spectral class A0 (white)
Pri motion ra -005 Sec motion ra
Pri motion dec -004 Sec motion dec
Notes X (Dubious double)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 1940 Constellation Cassiopeia SAO 36325 HIP 1896
Tycho2 3256-00853-1 Gaia DR2 394130903732876160 HD 1940 BD BD+48 106
Distance 520.83 Distance ly 1698.95
 
 
WDS 00240+4912 HDS 55 (HD 1940) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HDS Hipparcos Double Star (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
00240+4912 HDS 55 1991 1 254 0.2 8.76 10.83 A0 X 002358.66+491205.2
00240+4912 HDS 55 2014 2 314 0.1 8.76 10.83 A0 X 002358.66+491205.2

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

 
 
WDS 00240+4912 HDS 55 (HD 1940) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 00240+4912 HDS 55 (HD 1940) : MEASURES
 
 
No records found.

 
 
WDS 00240+4912 (HD 1940) : VIRTUAL EYEPIECE
 
 

00240+4912 HDS 55A mag 8.76 Sp A0 00240+4912 HDS 55B sep 0.1 P.A. 325.50 mag 10.83 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 00240+4912 (HD 1940) : ALADIN DSS IMAGE @ 00h 23m 58.66s +49° 12' 05.2"
 
 
 
 
WDS 00240+4912 HDS 55 (HD 1940) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

00240+4912 HDS 55 distance=0' 00220+4913 SKF1600AB distance=20' 00220+4913 BWL 3AC distance=20' 00220+4913 BWL 3AD distance=20' 00234+4932 TDS1434 distance=21' 00216+4856 HU 505 distance=29' 00259+4849 LDS3167 distance=30' 00205+4911 ES 1197 distance=34' 00212+4850 ES 1198 distance=36' 00196+4900 COU2001 distance=45' 00202+4842 TDS1407 distance=48' 00245+5000 TDS1446 distance=49' 00241+5002 TDS1440 distance=51' 00221+4822 J 9001 distance=55' 00223+4820 J 2384 distance=55' 00272+4959 STF 30AB distance=57' 00272+4959 STF 30AC distance=57' 00272+4959 FLE 1AD distance=57' 00272+4959 STF 30AE distance=57' 00298+4915 HU 508 distance=58' 00184+4930 ES 41 distance=58' 00306+4919 OL 86 distance=60' 00278+5001 HU 507BC distance=62' 00278+5001 HU 507AB distance=62' 00278+5001 FOX 109AD distance=62' 00278+5001 HU 507AC distance=62' 00177+4934 TDS 9 distance=65' 00309+4917 ES 1129 distance=68' 00290+4825 HDS 64 distance=69' 00251+4803 HDS 56AB distance=71' 00251+4803 CRZ 2AC distance=71' 00251+4803 SOZ 4AB,D distance=71' 00251+4803 RED 14Ca,Cb distance=74' 00315+4904 HU 509AB distance=75' 00315+4904 FOX 110AC distance=75' 00315+4904 FOX 110AD distance=75' 00162+4915 FOX 104AB distance=77' 00162+4915 FOX 104AC distance=77' 00204+4802 LDS3153 distance=78' 00175+4957 LDS3147 distance=79' 00248+5030 KPP1866 distance=79' 00311+4833 LDS3174 distance=81' 00302+5008 AZC 136 distance=82' 00226+5033 KU 67 distance=83' 00323+4938 KPP 57 distance=85' 00289+5023 DAE 1 distance=86' 00178+5013 TDS1385 distance=86' 00313+5000 TDS1507 distance=86' 00282+5028 HU 1008AB distance=87' 00282+5028 GII 7AC distance=87' 00160+4835 HJ 1009AB distance=88' 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 00240+4912 HDS 55 314 0.1
Show 00220+4913 SKF1600 AB 303 2.3 20
Show 00220+4913 BWL 3 AC 94 2.7 20
Show 00220+4913 BWL 3 AD 358 5.9 20
Show 00234+4932 TDS1434 195 0.4 21
Show 00216+4856 HU 505 134 1.8 29
Show 00259+4849 LDS3167 88 283.8 30
Show 00205+4911 ES 1197 107 5.6 34
Show 00212+4850 ES 1198 181 9.3 36
Show 00196+4900 COU2001 26 1.4 45
Show 00202+4842 TDS1407 312 0.6 48
Show 00245+5000 TDS1446 36 0.5 49
Show 00241+5002 TDS1440 261 1.8 51
Show 00221+4822 J 9001 84 4.4 55
Show 00223+4820 J 2384 189 5.3 55
Show 00272+4959 STF 30 AB 315 13.2 57
Show 00272+4959 STF 30 AC 98 63.9 57
Show 00272+4959 FLE 1 AD 261 148.8 57
Show 00272+4959 STF 30 AE 324 173.0 57
Show 00298+4915 HU 508 352 1.7 58
Show 00184+4930 ES 41 218 6.7 58
Show 00306+4919 OL 86 214 1.2 60
Show 00278+5001 HU 507 BC 246 1.4 62
Show 00278+5001 HU 507 AB 129 1.6 62
Show 00278+5001 FOX 109 AD 270 22.9 62
Show 00278+5001 HU 507 AC 180 1.6 62
Show 00177+4934 TDS 9 108 0.9 65
Show 00309+4917 ES 1129 265 1.2 68
Show 00290+4825 HDS 64 114 0.3 69
Show 00251+4803 HDS 56 AB 273 0.3 71
Show 00251+4803 CRZ 2 AC 193 121.2 71
Show 00251+4803 SOZ 4 AB,D 259 13.8 71
Show 00251+4803 RED 14 Ca,Cb 233 0.3 74
Show 00315+4904 HU 509 AB 56 2.6 75
Show 00315+4904 FOX 110 AC 189 16.6 75
Show 00315+4904 FOX 110 AD 141 35.7 75
Show 00162+4915 FOX 104 AB 50 16.5 77
Show 00162+4915 FOX 104 AC 293 27.4 77
Show 00204+4802 LDS3153 131 220.0 78
Show 00175+4957 LDS3147 236 178.4 79
Show 00248+5030 KPP1866 212 14.5 79
Show 00311+4833 LDS3174 63 15.5 81
Show 00302+5008 AZC 136 239 39.3 82
Show 00226+5033 KU 67 304 52.0 83
Show 00323+4938 KPP 57 82 4.9 85
Show 00289+5023 DAE 1 85 0.3 86
Show 00178+5013 TDS1385 87 0.8 86
Show 00313+5000 TDS1507 65 2.0 86
Show 00282+5028 HU 1008 AB 239 0.5 87
Show 00282+5028 GII 7 AC 338 16.1 87
Show 00160+4835 HJ 1009 AB 28 16.3 88

 
 
WDS 00240+4912 : COMPONENTS
 
 
  A
B pa=325.5°
sep=0.12"
 
 
00240+4912 A
 
 
Componente originario normalizzato AB Name HD 1940 Coord arcsec 2000 002358.66+491205.2 Mag 8.76
Spectral class A0 (white) PmRA -5.00 PmDE -4.0 SAO 36325
HIP 1896 Tycho2 3256-00853-1 HD 1940 BD BD+48 106
Tycho2
Tycho2 3256-00853-1 Pflag RAmdeg 5.99439202 DEmdeg 49.20142567
PmRA -5.0 PmDE -3.1 E RAmdeg 5 E DEmdeg 6
E pmRA 1.0 E pmDE 1.1 EpRAm 1991.15 EpDEm 1990.84
Num 13 Q RAmdeg 0.8 Q DEmdeg 1.2 Q pmRA 0.9
Q pmDE 1.3 BTmag 8.690 E BTmag 0.016 VTmag 8.587
E VTmag 0.012 Prox 999 TYC T HIP 1896
CCDM AB RAdeg 5.99440972 DEdeg 49.20143361 EpRA 1990 1.72
EpDE 1990 1.47 E RAdeg 5.1 E DEdeg 5.9 Posflg P
Corr 0.1
SAO
SAO 36325 DelFlag RA1950 PmRA1950 -0.0005
DE1950 PmDE1950 -0.013 Vmag 8.5 SpType A0
Double code Source 3 CatNum 34 DM BD+48 106
DMcomp BDsup HD 1940 M HD 0
GC RA1950rad 0.09288937 DE1950rad 0.85389137 PmRA2000 -0.0004
PmDE2000 -0.018
Hipparcos
Catalog H HIP 1896 Proxy H RAhms 00 23 58.66
DEdms +49 12 05.2 Vmag 8.57 VarFlag R Vmag H
RAdeg 5.99441 DEdeg 49.2014 AstroRef * Plx 1.07
CCDM 00240+4912 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source S Qual B M HIP AB
Theta 254 Rho 0.174 HD 1940 BD BD+48 106
CD CP Dm number +48 106 VIred 0.07
SpType A0 R SpType Coord arcsec 2000 002358.66+491205.2
Hipparcos 2
HIP 1896 Sn 55 So 3 Nc 2
RArad 0.1046222047 DErad 0.8587270072 Plx 1.92 PmRA -5.06
PmDE -3.36 E RArad 0.7 E DErad 0.48 E Plx 0.84
E pmRA 0.83 E pmDE 0.57 Hpmag 8.6115 E Hpmag 0.0011
SHp 0.012 VA 0 BV 0.108 E BV 0.012
VI 0.12
CCDM
Ccdm 00240+4912 RComp Comp A Note1
Note2 Discov num DRAs -1.34 DDEs 5.1
R dRAs 82 Year Theta Rho
Obs 2 Vmag 8.8 Sp A0 PmNote *
PmRA -5 PmDE -4 Dm number +48 106 Cat1 BD
Name2 +48 34 Cat2 AGK2/3 HD 1940 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 1896
 
 
00240+4912 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 002358.65+491205.3 Mag 10.83 Calc delta mag 2.07
Calc coord yes
CCDM
Ccdm 00240+4912 RComp Comp B Note1
Note2 Discov num HDS DRAs -1.36 DDEs 5.1
R dRAs 82 Year 1991 Theta 254 Rho 0.2
Obs 1 Vmag 10.8 Sp PmNote *
PmRA -5 PmDE -4 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 1896