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Doubles in session


Current system
22490+6834
STF 2947 AB
HD 216172


Nearby doubles
12' : 22477+6826
AZC 183

12' : 22512+6835
TDT3750

25' : 22494+6810
STT 530

34' : 22510+6803
LDS5008

35' : 22450+6808
STT 529AB

35' : 22427+6835
MLB 316AB

38' : 22455+6805
MLB 317

41' : 22527+6759
STTA238AB

47' : 22427+6803
MLB 315

49' : 22403+6830
BU 845AB

54' : 22520+6925
HJ 1829

56' : 22390+6828
CBL 544

59' : 22434+6744
HJ 1807AB

61' : 22589+6902
GIC 186

67' : 22394+6755
TDS1177

73' : 22403+6930
TOI1516

74' : 23003+6755
GIC 187

74' : 22373+6913
CHR 113

79' : 23016+6912
OL 224

81' : 22343+6830
BU 708

85' : 22510+6958
MLB 433

85' : 23017+6748
HU 993

86' : 22393+6941
LDS1495

88' : 22331+6830
BU 706AB

89' : 22344+6915
LDS4979

91' : 22325+6834
WHC 28



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.

22490+6834 STF 2947 AB (HD 216172)

 
 
22h 49m 00.68s +68° 34' 12.2" P.A. 55.00 sep 4.6 mag 6.91,7.02 Sp F4V+F5V dist. 63.69 pc (207.76 l.y.)
 
 
Coord 2000 22490+6834 Discov num STF2947 Comp AB Coord arcsec 2000 22 49 00.68 +68 34 12.2
Date first 1828 Date last 2021 Obs 235
Pa first 79 Pa last 55.3 P.A. Now (θ) 55.3°
Sep first 3.5 Sep last 4.63 Sep. Now (ρ) 4.63"
Mag pri 6.91 Mag sec 7.02 delta mag (ΔM) 0.11 Spectral class F4V+F5V (yellow-white/yellow-white)
Pri motion ra +117 Sec motion ra +121
Pri motion dec +066 Sec motion dec +075
Notes N T (See Notes, Parallax indicates physical)
rPM=0.069 (< 0.3, Physical double)
This double is physical.
 
 
22490+6834 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 216172 20259 22 49 01 +68 34 12 STF 2947 AB 2021 235 55 4.6 6.91 7.02 0.11 <===
Show 20259 22 49 01 +68 34 12 STF 2947 AC 2015 14 208 122.6 6.91 12.48 5.57
Show 22 49 02 +68 34 15 STF 2947 BC 1999 4 208 120.7 7.02 10.40 3.38
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 216172 Constellation Cepheus SAO 20259 HIP 112670
Tycho2 4477-01366-1 Gaia DR2 2225421709401544576 HD 216172 HR 8687
GC 31841 ADS 16291 BD BD+67 1468 Distance 63.69
Distance ly 207.76
 
 
WDS 22490+6834 STF 2947 AB (HD 216172) : NOTES
 
 
discov_num notes refcode
STF2947 Mt. Wilson spectral classes F5s and F4s.
AB: H 1 51. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
22490+6834 STF2947 AB 2007 192 56 4.6 6.91 7.02 F4V NLD 224900.68+683412.2
22490+6834 STF2947 AB 2010 200 55 4.5 6.91 7.02 F4V NLD 224900.68+683412.2
22490+6834 STF2947 AB 2012 202 56 4.7 6.91 7.02 F4V NLD 224900.68+683412.2
22490+6834 STF2947 AB 2014 203 55 4.5 6.91 7.02 F4V NLD 224900.68+683412.2
22490+6834 STF2947 AB 2015 206 55 4.7 6.91 7.02 F4V NL 224900.68+683412.2
22490+6834 STF2947 AB 2016 225 56 4.7 6.91 7.02 F4V NL 224900.68+683412.2
22490+6834 STF2947 AB 2017 228 55 4.7 6.91 7.02 F4V NL 224900.68+683412.2
22490+6834 STF2947 AB 2018 230 56 4.7 6.91 7.02 F4V NL 224900.68+683412.2
22490+6834 STF2947 AB 2019 233 56 4.7 6.91 7.02 F4V+F5V NT 224900.68+683412.2
22490+6834 STF2947 AB 2021 235 55 4.6 6.91 7.02 F4V+F5V NT 224900.68+683412.2

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

 
 
WDS 22490+6834 STF 2947 AB (HD 216172) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 22/08/25 daedalus1 mean difficulty separated 56   Seeing: Pickering 6, good. Measures: theta 056, rho 4.8 +/- 0.082. Beautiful, evenly matched yellow pair.

 
 
WDS 22490+6834 STF 2947 AB (HD 216172) : MEASURES
 
 
No records found.

 
 
WDS 22490+6834 (HD 216172) : VIRTUAL EYEPIECE
 
 

22490+6834 STF2947A mag 6.91 Sp F4V 22490+6834 STF2947B sep 5.6 P.A. 57.80 mag 7.02 Sp F5V 22490+6834 STF2947C sep 110.0 P.A. 191.10 mag 12.48 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 22490+6834 (HD 216172) : ALADIN DSS IMAGE @ 22h 49m 00.68s +68° 34' 12.2"
 
 
 
 
WDS 22490+6834 STF 2947 AB (HD 216172) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

22490+6834 STF2947AB distance=1' 22490+6834 STF2947AC distance=1' 22490+6834 STF2947BC distance=1' 22477+6826 AZC 183 distance=12' 22512+6835 TDT3750 distance=12' 22494+6810 STT 530 distance=25' 22510+6803 LDS5008 distance=34' 22450+6808 STT 529AB distance=35' 22450+6808 STT 529AC distance=35' 22427+6835 MLB 316AB distance=35' 22427+6835 MLB 316AC distance=35' 22455+6805 MLB 317 distance=38' 22527+6759 STTA238BC distance=40' 22527+6759 HDS3247Aa,Ab distance=41' 22527+6759 STTA238AB distance=41' 22427+6803 MLB 315 distance=47' 22403+6830 BU 845AB distance=49' 22403+6830 BU 845AC distance=49' 22403+6830 FOX 269AD distance=49' 22520+6925 HJ 1829 distance=54' 22390+6828 CBL 544 distance=56' 22434+6744 HJ 1807AB distance=59' 22434+6744 HU 92BC distance=60' 22589+6902 GIC 186 distance=61' 22394+6755 TDS1177 distance=67' 22403+6930 TOI1516 distance=73' 23003+6755 GIC 187 distance=74' 22373+6913 CHR 113 distance=74' 23016+6912 OL 224 distance=79' 22343+6830 BU 708 distance=81' 22510+6958 MLB 433 distance=85' 23017+6748 HU 993 distance=85' 22393+6941 LDS1495 distance=86' 22331+6830 BU 706AB distance=88' 22331+6830 BU 706AC distance=88' 22344+6915 LDS4979 distance=89' 22325+6834 WHC 28 distance=91' 22586+6950 A 785 distance=92' 22551+7006 LDS2015 distance=97' 22585+6705 HJ 1838 distance=104' 22301+6812 BU 479 distance=107' 22327+6737 MLB 272 distance=108' 22466+6644 DJU 8 distance=112' 22562+6649 HU 988 distance=113' 22400+6650 MLB 273 distance=115' 22599+7016 SKF2745AB distance=117' 22599+7016 SKF2745AC distance=117' 22330+6955 STF2924AB distance=118' 22330+6955 STF2924AB,C distance=118' 22330+6955 STF2924AB,D distance=118' 22561+6643 BU 849 distance=118' 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 22490+6834 STF2947 AB 55 4.6 1
Show 22490+6834 STF2947 AC 208 122.6 1
Show 22490+6834 STF2947 BC 208 120.7 1
Show 22477+6826 AZC 183 222 25.6 12
Show 22512+6835 TDT3750 227 1.2 12
Show 22494+6810 STT 530 210 5.1 25
Show 22510+6803 LDS5008 284 35.0 34
Show 22450+6808 STT 529 AB 203 3.7 35
Show 22450+6808 STT 529 AC 223 17.2 35
Show 22427+6835 MLB 316 AB 122 3.0 35
Show 22427+6835 MLB 316 AC 347 13.3 35
Show 22455+6805 MLB 317 13 5.8 38
Show 22527+6759 STTA238 BC 254 52.0 40
Show 22527+6759 HDS3247 Aa,Ab 324 0.2 41
Show 22527+6759 STTA238 AB 280 69.2 41
Show 22427+6803 MLB 315 233 2.8 47
Show 22403+6830 BU 845 AB 205 7.3 49
Show 22403+6830 BU 845 AC 17 16.4 49
Show 22403+6830 FOX 269 AD 97 44.6 49
Show 22520+6925 HJ 1829 354 12.8 54
Show 22390+6828 CBL 544 38 72.5 56
Show 22434+6744 HJ 1807 AB 187 23.9 59
Show 22434+6744 HU 92 BC 345 1.4 60
Show 22589+6902 GIC 186 233 21.5 61
Show 22394+6755 TDS1177 277 1.1 67
Show 22403+6930 TOI1516 28 7.1 73
Show 23003+6755 GIC 187 29 12.1 74
Show 22373+6913 CHR 113 357 0.6 74
Show 23016+6912 OL 224 48 6.9 79
Show 22343+6830 BU 708 312 7.8 81
Show 22510+6958 MLB 433 208 3.0 85
Show 23017+6748 HU 993 215 2.1 85
Show 22393+6941 LDS1495 138 54.3 86
Show 22331+6830 BU 706 AB 19 2.8 88
Show 22331+6830 BU 706 AC 251 31.2 88
Show 22344+6915 LDS4979 100 50.4 89
Show 22325+6834 WHC 28 153 13.5 91
Show 22586+6950 A 785 29 1.3 92
Show 22551+7006 LDS2015 276 27.5 97
Show 22585+6705 HJ 1838 255 1.5 104
Show 22301+6812 BU 479 27 2.4 107
Show 22327+6737 MLB 272 273 4.1 108
Show 22466+6644 DJU 8 39 0.8 112
Show 22562+6649 HU 988 172 1.1 113
Show 22400+6650 MLB 273 203 8.4 115
Show 22599+7016 SKF2745 AB 258 4.9 117
Show 22599+7016 SKF2745 AC 184 14.8 117
Show 22330+6955 STF2924 AB 233 0.3 118
Show 22330+6955 STF2924 AB,C 197 125.1 118
Show 22330+6955 STF2924 AB,D 197 188.6 118
Show 22561+6643 BU 849 96 6.5 118

 
 
WDS 22490+6834 : COMPONENTS
 
 
  A B
B pa=57.8°
sep=5.63"
 
C pa=191.1°
sep=110.04"
pa=193.2°
sep=113.98"
 
 
22490+6834 A
 
 
Name HD 216172 Coord arcsec 2000 224900.68+683412.2 Mag 6.91 Spectral class F4V (yellow-white)
PmRA 117.00 PmDE 66.0 SAO 20259 HIP 112670
Tycho2 4477-01366-1 HD 216172 HR 8687 GC 31841
BD BD+67 1468
Tycho2
Tycho2 4477-01366-1 Pflag RAmdeg 342.25359606 DEmdeg 68.57020944
PmRA 114.1 PmDE 61.2 E RAmdeg 5 E DEmdeg 4
E pmRA 1.6 E pmDE 1.7 EpRAm 1991.45 EpDEm 1991.60
Num 6 Q RAmdeg 2.4 Q DEmdeg 2.5 Q pmRA 2.4
Q pmDE 2.4 BTmag 7.356 E BTmag 0.015 VTmag 6.912
E VTmag 0.010 Prox 45 TYC T HIP 112670
CCDM A RAdeg 342.25286389 DEdeg 68.57006778 EpRA 1990 1.56
EpDE 1990 1.66 E RAdeg 4.6 E DEdeg 4.4 Posflg
Corr 0.3
SAO
SAO 20259 DelFlag RA1950 PmRA1950 0.0201
DE1950 PmDE1950 0.074 Vmag 7.1 SpType F5
Double code Source 70 CatNum 31841 DM BD+67 1468
DMcomp A BDsup HD 216172 M HD 1
GC 31841 RA1950rad 5.96597542 DE1950rad 1.19214024 PmRA2000 0.0205
PmDE2000 0.068
Hipparcos
Catalog H HIP 112670 Proxy H RAhms 22 49 00.68
DEdms +68 34 12.2 Vmag 6.19 VarFlag R Vmag H
RAdeg 342.253 DEdeg 68.5701 AstroRef A Plx 16.01
CCDM 22490+6834 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 57 Rho 4.474 HD 216172 BD BD+67 1468
CD CP Dm number +67 1468 VIred 0.49
SpType F5 R SpType Coord arcsec 2000 224900.68+683412.2
Hipparcos 2
HIP 112670 Sn 15 So 3 Nc 2
RArad 5.9734388723 DErad 1.1967733668 Plx 15.7 PmRA 115.87
PmDE 66.36 E RArad 0.58 E DErad 0.53 E Plx 0.63
E pmRA 0.75 E pmDE 0.54 Hpmag 6.2901 E Hpmag 0.0006
SHp 0.006 VA 0 BV 0.44 E BV 0.007
VI 0.51
CCDM
Ccdm 22490+6834 RComp Comp A Note1
Note2 Discov num DRAs 0.80 DDEs 13.2
R dRAs 10 Year Theta Rho
Obs 3 Vmag 7.2 Sp F5 PmNote *
PmRA 112 PmDE 74 Dm number +67 1468 Cat1 BD
Name2 20259 Cat2 SAO HD 216172 M HD
ADS BDS A16291 M ADS BDS N IDS IDS 22456N6802A
HIC 112670
 
 
22490+6834 B
 
 
Coord arcsec 2000 224901.55+683415.2 Coord calc 224901.55+683415.2 Mag 7.02 Spectral class F5V (yellow-white)
PmRA 121.00 PmDE 75.0 Tycho2 4477-01574-1 Calc delta mag 0.11
Tycho2
Tycho2 4477-01574-1 Pflag RAmdeg 342.25645920 DEmdeg 68.57091903
PmRA 116.5 PmDE 73.4 E RAmdeg 5 E DEmdeg 5
E pmRA 2.2 E pmDE 2.4 EpRAm 1991.52 EpDEm 1991.60
Num 4 Q RAmdeg 0.8 Q DEmdeg 0.4 Q pmRA 0.8
Q pmDE 0.3 BTmag 7.485 E BTmag 0.015 VTmag 7.020
E VTmag 0.010 Prox 45 TYC T HIP 112670
CCDM B RAdeg 342.25571389 DEdeg 68.57074889 EpRA 1990 1.58
EpDE 1990 1.66 E RAdeg 4.6 E DEdeg 4.6 Posflg
Corr 0.4
CCDM
Ccdm 22490+6834 RComp Comp B Note1
Note2 Discov num STF2947 DRAs 1.62 DDEs 15.1
R dRAs 10 Year 1959 Theta 060 Rho 4.2
Obs 99 Vmag 7.2 Sp F5 PmNote *
PmRA 128 PmDE 79 Dm number Cat1
Name2 20260 Cat2 SAO HD M HD
ADS BDS A16291 M ADS BDS N N IDS IDS 22456N6802B
HIC 112670
 
 
22490+6834 C
 
 
Coord arcsec 2000 224856.80+683224.2 Mag 12.48 PmRA 13.00 PmDE -22.0
Calc delta mag 5.57 Calc coord yes
CCDM
Ccdm 22490+6834 RComp Comp C Note1
Note2 Discov num STF2947 DRAs DDEs
R dRAs Year 1925 Theta 206 Rho 111.2
Obs 3 Vmag 10.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A16291 M ADS BDS N IDS IDS 22456N6802C
HIC