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Current system
21115+7050
HDS 3019 AB
HD 202431


Nearby doubles
36' : 21045+7046
STF2771

39' : 21078+7123
HDS3012

44' : 21059+7124
LDS1945

46' : 21201+7112
HJ 3027

50' : 21148+7003
MLB 364

51' : 21114+7140
OSO 143

59' : 21050+7000
LDS1944

64' : 21027+7005
TDT2710

73' : 21069+6940
LAF 63AB

75' : 21052+6942
MLB 303

76' : 20561+7052
TDT2640

82' : 21209+6944
MLB 365

82' : 21274+7028
CSR 1

84' : 21275+7028
SHR 1

85' : 21277+7119
LDS1953

85' : 20571+7138
TDT2652

87' : 21287+7034
STF2806AB
Alfirk

90' : 21289+7024
BKO 772

91' : 21195+6928
MLB 304

96' : 21233+7207
LSC 98

101' : 21309+7020
CSR 2AB

102' : 20544+6957
A 1216AB

109' : 21267+7211
TDT2971

110' : 21001+6917
TDT2686

111' : 20592+7224
MLB 423

124' : 21257+7233
HJ 3035AB



Selections
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Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21115+7050 HDS 3019 AB (HD 202431)

 
 
21h 11m 32.40s +70° 49' 31.4" P.A. 136.00 sep 0.3 mag 7.71,10.25 Sp A3 dist. 104.71 pc (341.56 l.y.)
 
 
Coord 2000 21115+7050 Discov num HDS3019 Comp AB Coord arcsec 2000 21 11 32.40 +70 49 31.4
Date first 1991 Date last 1991 Obs 1
Pa first 136 Pa last 136 P.A. Now (θ) 136°
Sep first 0.3 Sep last 0.319 Sep. Now (ρ) 0.319"
Mag pri 7.71 Mag sec 10.25 delta mag (ΔM) 2.54 Spectral class A3 (white)
Pri motion ra +016 Sec motion ra
Pri motion dec -028 Sec motion dec
Notes W
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 202431 Constellation Cepheus SAO 9982 HIP 104615
Tycho2 4464-01860-1 HD 202431 BD BD+70 1171 Distance 104.71
Distance ly 341.56
 
 
WDS 21115+7050 HDS 3019 AB (HD 202431) : 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
21115+7050 HDS3019 AB 1991 1 136 0.3 7.71 10.25 A3 W 211132.40+704931.4

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

 
 
WDS 21115+7050 HDS 3019 AB (HD 202431) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21115+7050 HDS 3019 AB (HD 202431) : MEASURES
 
 
No records found.

 
 
WDS 21115+7050 (HD 202431) : VIRTUAL EYEPIECE
 
 

21115+7050 HDS3019A mag 7.71 Sp A3 21115+7050 HDS3019B sep 0.2 P.A. 162.40 mag 10.25 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21115+7050 (HD 202431) : ALADIN DSS IMAGE @ 21h 11m 32.40s +70° 49' 31.4"
 
 
 
 
WDS 21115+7050 HDS 3019 AB (HD 202431) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21115+7050 HDS3019AB distance=0' 21045+7046 STF2771 distance=36' 21078+7123 HDS3012 distance=39' 21059+7124 LDS1945 distance=44' 21201+7112 HJ 3027 distance=46' 21148+7003 MLB 364 distance=50' 21114+7140 OSO 143 distance=51' 21050+7000 LDS1944 distance=59' 21027+7005 TDT2710 distance=64' 21069+6940 LAF 63AB distance=73' 21069+6940 LAF 63AC distance=73' 21069+6940 LAF 63AD distance=73' 21052+6942 MLB 303 distance=75' 20561+7052 TDT2640 distance=76' 21209+6944 MLB 365 distance=82' 21274+7028 CSR 1 distance=82' 21275+7028 SHR 1 distance=84' 21277+7119 LDS1953 distance=85' 20571+7138 TDT2652 distance=85' 21287+7034 LAB 6Aa,Ab (Alfirk) distance=87' 21287+7034 STF2806AB (Alfirk) distance=87' 21289+7024 BKO 772 distance=90' 21195+6928 MLB 304 distance=91' 21233+7207 LSC 98 distance=96' 21309+7020 CSR 2AB distance=101' 21309+7020 BKO 773BC distance=101' 20544+6957 A 1216CD distance=101' 20544+6957 A 1216AB distance=102' 20544+6957 A 1216AC distance=102' 21267+7211 TDT2971 distance=109' 21001+6917 TDT2686 distance=110' 20592+7224 MLB 423 distance=111' 21257+7233 HJ 3035AB distance=124' 21257+7233 HJ 3035AC distance=124' 21220+7257 TDT2926 distance=137' 21012+7258 A 880 distance=138' 21276+7247 LDS1954 distance=140' 20520+6910 JOD 19 distance=142' 21157+6821 BVD 135 distance=150' 21176+6818 YUN 1AB distance=156' 21176+6818 CON 40CD distance=156' 21113+7334 CRB 209 distance=165' 21122+6803 KPP4227AB distance=167' 21016+6810 LI 6AB distance=168' 21087+7342 OSO 141 distance=173' 21291+7330 SHN 251 distance=180' 21270+7339 ZUC 15 distance=184' 21225+6751 TDT2933 distance=189' 21309+7342 MLB 425 distance=193' 21112+7404 STF2784 distance=194' 21138+7409 CBL 91 distance=200' 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 21115+7050 HDS3019 AB 136 0.3
Show 21045+7046 STF2771 33 2.7 36
Show 21078+7123 HDS3012 190 0.9 39
Show 21059+7124 LDS1945 353 15.9 44
Show 21201+7112 HJ 3027 128 34.2 46
Show 21148+7003 MLB 364 59 5.2 50
Show 21114+7140 OSO 143 277 16.6 51
Show 21050+7000 LDS1944 349 48.0 59
Show 21027+7005 TDT2710 42 0.4 64
Show 21069+6940 LAF 63 AB 201 3.7 73
Show 21069+6940 LAF 63 AC 259 8.4 73
Show 21069+6940 LAF 63 AD 332 14.5 73
Show 21052+6942 MLB 303 6.1 75
Show 20561+7052 TDT2640 318 0.7 76
Show 21209+6944 MLB 365 47 5.1 82
Show 21274+7028 CSR 1 286 7.7 82
Show 21275+7028 SHR 1 141 11.5 84
Show 21277+7119 LDS1953 116 11.5 85
Show 20571+7138 TDT2652 307 0.6 85
Show Alfirk 21287+7034 LAB 6 Aa,Ab 226 0.2 87
Show Alfirk 21287+7034 STF2806 AB 250 13.6 87
Show 21289+7024 BKO 772 96 11.7 90
Show 21195+6928 MLB 304 47 5.2 91
Show 21233+7207 LSC 98 222 0.1 96
Show 21309+7020 CSR 2 AB 69 12.4 101
Show 21309+7020 BKO 773 BC 321 10.2 101
Show 20544+6957 A 1216 CD 82 0.9 101
Show 20544+6957 A 1216 AB 327 20.1 102
Show 20544+6957 A 1216 AC 346 38.6 102
Show 21267+7211 TDT2971 116 1.9 109
Show 21001+6917 TDT2686 42 2.4 110
Show 20592+7224 MLB 423 247 5.9 111
Show 21257+7233 HJ 3035 AB 127 23.2 124
Show 21257+7233 HJ 3035 AC 202 24.2 124
Show 21220+7257 TDT2926 74 0.6 137
Show 21012+7258 A 880 43 0.3 138
Show 21276+7247 LDS1954 4 6.0 140
Show 20520+6910 JOD 19 172 0.5 142
Show 21157+6821 BVD 135 310 24.9 150
Show 21176+6818 YUN 1 AB 92 9.0 156
Show 21176+6818 CON 40 CD 69 1.0 156
Show 21113+7334 CRB 209 143 22.0 165
Show 21122+6803 KPP4227 AB 298 1.9 167
Show 21016+6810 LI 6 AB 168 2.5 168
Show 21087+7342 OSO 141 156 14.7 173
Show 21291+7330 SHN 251 -1 0.5 180
Show 21270+7339 ZUC 15 167 1.9 184
Show 21225+6751 TDT2933 157 0.6 189
Show 21309+7342 MLB 425 338 2.0 193
Show 21112+7404 STF2784 345 14.3 194
Show 21138+7409 CBL 91 168 32.7 200

 
 
WDS 21115+7050 : COMPONENTS
 
 
  A
B pa=162.4°
sep=0.24"
 
 
21115+7050 A
 
 
Name HD 202431 Coord arcsec 2000 211132.40+704931.4 Mag 7.71 Spectral class A3 (white)
PmRA 16.00 PmDE -28.0 SAO 9982 HIP 104615
Tycho2 4464-01860-1 HD 202431 BD BD+70 1171
Tycho2
Tycho2 4464-01860-1 Pflag RAmdeg 317.88512488 DEmdeg 70.82533341
PmRA 13.7 PmDE -24.2 E RAmdeg 5 E DEmdeg 5
E pmRA 1.4 E pmDE 1.4 EpRAm 1991.48 EpDEm 1991.49
Num 8 Q RAmdeg 1.2 Q DEmdeg 1.4 Q pmRA 1.1
Q pmDE 1.4 BTmag 7.958 E BTmag 0.016 VTmag 7.556
E VTmag 0.011 Prox 999 TYC T HIP 104615
CCDM AB RAdeg 317.88502917 DEdeg 70.82538833 EpRA 1990 1.76
EpDE 1990 1.74 E RAdeg 4.5 E DEdeg 4.7 Posflg P
Corr 0.0
SAO
SAO 9982 DelFlag RA1950 PmRA1950 0.003
DE1950 PmDE1950 0.015 Vmag 7.4 SpType A3
Double code Source 1 CatNum 734 DM BD+70 1171
DMcomp BDsup HD 202431 M HD 0
GC RA1950rad 5.54627578 DE1950rad 1.23254496 PmRA2000 0.0034
PmDE2000 0.01
Hipparcos
Catalog H HIP 104615 Proxy H RAhms 21 11 32.40
DEdms +70 49 31.4 Vmag 7.52 VarFlag R Vmag H
RAdeg 317.885 DEdeg 70.8254 AstroRef A Plx 9.36
CCDM 21115+7050 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 136 Rho 0.319 HD 202431 BD BD+70 1171
CD CP Dm number +70 1171 VIred 0.41
SpType A3 R SpType Coord arcsec 2000 211132.40+704931.4
Hipparcos 2
HIP 104615 Sn 15 So 3 Nc 2
RArad 5.5481400706 DErad 1.2361363809 Plx 9.55 PmRA 16.31
PmDE -28.49 E RArad 0.44 E DErad 0.4 E Plx 0.46
E pmRA 0.58 E pmDE 0.45 Hpmag 7.6109 E Hpmag 0.0012
SHp 0.01 VA 0 BV 0.389 E BV 0.012
VI 0.45
CCDM
Ccdm 21115+7050 RComp Comp A Note1
Note2 Discov num DRAs 2.42 DDEs -28.8
R dRAs 82 Year Theta Rho
Obs 2 Vmag 7.7 Sp A3 PmNote *
PmRA 16 PmDE -28 Dm number +70 1171 Cat1 BD
Name2 +70 734 Cat2 AGK2/3 HD 202431 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 104615
 
 
21115+7050 B
 
 
Coord arcsec 2000 211132.41+704931.2 Mag 10.25 Calc delta mag 2.54 Calc coord yes
CCDM
Ccdm 21115+7050 RComp Comp B Note1
Note2 Discov num HDS DRAs 2.48 DDEs -29.0
R dRAs 82 Year 1991 Theta 136 Rho 0.3
Obs 1 Vmag 10.2 Sp PmNote *
PmRA 16 PmDE -28 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 104615