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Current system
22561+6643
BU 849
HD 216993


Nearby doubles
6' : 22562+6649
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SKF 326

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BLL 57

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STT 529AB



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

22561+6643 BU 849 (HD 216993)

 
 
22h 56m 05.33s +66° 43' 21.9" P.A. 96.00 sep 6.5 mag 8.49,12.40 Sp A0
 
 
Coord 2000 22561+6643 Discov num BU  849 Comp Coord arcsec 2000 22 56 05.33 +66 43 21.9
Date first 1881 Date last 2015 Obs 17
Pa first 127 Pa last 95.9 P.A. Now (θ) 95.9°
Sep first 3.7 Sep last 6.45 Sep. Now (ρ) 6.45"
Mag pri 8.49 Mag sec 12.40 delta mag (ΔM) 3.91 Spectral class A0 (white)
Pri motion ra -009 Sec motion ra +019
Pri motion dec -003 Sec motion dec +021
Notes L U (Linear solution, Proper motion indicates non-physical)
rPM=1.302
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 216993 Constellation Cepheus Tycho2 4290-00995-1 Gaia DR2 2212216643470902912
HD 216993
 
 
WDS 22561+6643 BU 849 (HD 216993) : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
BU Burnham, S.W. (BU 1 - 81)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
22561+6643 BU 849 1954 10 108 5.3 8.49 12.40 A0 +65 1833 L 225605.33+664321.9
22561+6643 BU 849 2013 11 94 6.3 8.49 12.40 A0 +65 1833 L 225605.33+664321.9
22561+6643 BU 849 2015 12 96 6.5 8.49 12.40 A0 +65 1833 L 225605.33+664321.9

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

 
 
WDS 22561+6643 BU 849 (HD 216993) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 22561+6643 BU 849 (HD 216993) : MEASURES
 
 
No records found.

 
 
WDS 22561+6643 (HD 216993) : VIRTUAL EYEPIECE
 
 

22561+6643 BU 849A mag 8.49 Sp A0 22561+6643 BU 849B sep 6.5 P.A. 95.90 mag 12.4 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 22561+6643 (HD 216993) : ALADIN DSS IMAGE @ 22h 56m 05.33s +66° 43' 21.9"
 
 
 
 
WDS 22561+6643 BU 849 (HD 216993) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

22561+6643 BU 849 distance=1' 22562+6649 HU 988 distance=6' 22585+6705 HJ 1838 distance=27' 22535+6607 MLR 86Aa,Ab distance=40' 22535+6607 MLB 275AB distance=40' 22496+6633 STF2948 distance=40' 22497+6612 SHY 359AB distance=50' 22497+6612 JGP 26AC distance=50' 22560+6547 AZC 184 distance=57' 22478+6614 MLR 85 distance=58' 22484+6600 MLB 274 distance=64' 22463+6616 HU 984 distance=65' 23017+6748 HU 993 distance=73' 23068+6721 AZC 185 distance=73' 23003+6755 GIC 187 distance=77' 22470+6549 TDT3704 distance=78' 22527+6759 HDS3247Aa,Ab distance=79' 22527+6759 STTA238AB distance=79' 22527+6759 STTA238BC distance=80' 23101+6642 AZC 186 distance=84' 22510+6803 LDS5008 distance=85' 23027+6519 LDS5040 distance=94' 22494+6810 STT 530 distance=95' 22400+6650 MLB 273 distance=95' 22434+6744 HU 92BC distance=96' 22434+6744 HJ 1807AB distance=96' 23066+6529 STI1143 distance=98' 22455+6805 MLB 317 distance=100' 23110+6555 AG 290 distance=103' 22519+6504 SKF 326 distance=103' 22461+6518 BLL 57 distance=106' 22450+6808 STT 529AB distance=106' 22450+6808 STT 529AC distance=106' 23119+6736 HU 996AB distance=106' 23119+6736 HU 996AC distance=106' 22440+6521 SKF2615 distance=111' 23019+6459 TDT3843 distance=111' 22587+6455 MLB 233 distance=111' 22427+6803 MLB 315 distance=111' 23115+6543 SKF2616 distance=112' 22477+6826 AZC 183 distance=113' 22512+6835 TDT3750 distance=116' 22564+6447 ES 218BC distance=116' 22564+6447 HJ 1833AB distance=117' 22490+6834 STF2947AB distance=118' 22490+6834 STF2947AC distance=118' 22490+6834 STF2947BC distance=118' 22394+6755 TDS1177 distance=121' 22392+6533 HJ 1799 distance=124' 22401+6526 TDT3642 distance=124' 23129+6533 STI1151 distance=125' 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 22561+6643 BU 849 96 6.5 1
Show 22562+6649 HU 988 172 1.1 6
Show 22585+6705 HJ 1838 255 1.5 27
Show 22535+6607 MLR 86 Aa,Ab 33 0.5 40
Show 22535+6607 MLB 275 AB 281 7.0 40
Show 22496+6633 STF2948 3 2.6 40
Show 22497+6612 SHY 359 AB 184 999.9 50
Show 22497+6612 JGP 26 AC 149 999.9 50
Show 22560+6547 AZC 184 124 17.4 57
Show 22478+6614 MLR 85 34 1.0 58
Show 22484+6600 MLB 274 2 4.6 64
Show 22463+6616 HU 984 7 0.8 65
Show 23017+6748 HU 993 215 2.1 73
Show 23068+6721 AZC 185 14 17.4 73
Show 23003+6755 GIC 187 29 12.1 77
Show 22470+6549 TDT3704 134 1.6 78
Show 22527+6759 HDS3247 Aa,Ab 324 0.2 79
Show 22527+6759 STTA238 AB 280 69.2 79
Show 22527+6759 STTA238 BC 254 52.0 80
Show 23101+6642 AZC 186 14 17.1 84
Show 22510+6803 LDS5008 284 35.0 85
Show 23027+6519 LDS5040 90 20.9 94
Show 22494+6810 STT 530 210 5.1 95
Show 22400+6650 MLB 273 203 8.4 95
Show 22434+6744 HU 92 BC 345 1.4 96
Show 22434+6744 HJ 1807 AB 187 23.9 96
Show 23066+6529 STI1143 246 5.3 98
Show 22455+6805 MLB 317 13 5.8 100
Show 23110+6555 AG 290 265 14.7 103
Show 22519+6504 SKF 326 91 2.1 103
Show 22461+6518 BLL 57 241 151.0 106
Show 22450+6808 STT 529 AB 201 3.6 106
Show 22450+6808 STT 529 AC 223 17.2 106
Show 23119+6736 HU 996 AB 208 2.3 106
Show 23119+6736 HU 996 AC 185 18.8 106
Show 22440+6521 SKF2615 53 33.0 111
Show 23019+6459 TDT3843 79 0.6 111
Show 22587+6455 MLB 233 216 3.7 111
Show 22427+6803 MLB 315 233 2.8 111
Show 23115+6543 SKF2616 324 11.3 112
Show 22477+6826 AZC 183 222 25.6 113
Show 22512+6835 TDT3750 227 1.2 116
Show 22564+6447 ES 218 BC 332 3.5 116
Show 22564+6447 HJ 1833 AB 303 19.8 117
Show 22490+6834 STF2947 AB 55 4.7 118
Show 22490+6834 STF2947 AC 208 122.6 118
Show 22490+6834 STF2947 BC 208 120.7 118
Show 22394+6755 TDS1177 277 1.1 121
Show 22392+6533 HJ 1799 318 12.2 124
Show 22401+6526 TDT3642 1 0.3 124
Show 23129+6533 STI1151 31 5.0 125

 
 
WDS 22561+6643 : COMPONENTS
 
 
  A
B pa=95.9°
sep=6.45"
 
 
22561+6643 A
 
 
Coord arcsec 2000 225605.33+664321.9 Mag 8.49 Spectral class A0 (white) PmRA -9.00
PmDE -3.0 Tycho2 4290-00995-1 HD 216993
Tycho2
Tycho2 4290-00995-1 Pflag RAmdeg 344.02222556 DEmdeg 66.72275674
PmRA -19.9 PmDE -7.9 E RAmdeg 9 E DEmdeg 9
E pmRA 1.7 E pmDE 1.8 EpRAm 1991.41 EpDEm 1991.37
Num 3 Q RAmdeg 1.0 Q DEmdeg 0.7 Q pmRA 1.1
Q pmDE 0.7 BTmag 10.718 E BTmag 0.041 VTmag 8.493
E VTmag 0.013 Prox 999 TYC T HIP
CCDM RAdeg 344.02234222 DEdeg 66.72277500 EpRA 1990 1.69
EpDE 1990 1.64 E RAdeg 8.7 E DEdeg 9.2 Posflg
Corr 0.1
CCDM
Ccdm 22561+6643 RComp Comp A Note1
Note2 Discov num DRAs -0.48 DDEs 22.6
R dRAs 21 Year Theta Rho
Obs 2 Vmag 8.0 Sp A0 PmNote
PmRA -9 PmDE -3 Dm number +65 1833 Cat1 BD
Name2 Cat2 HD 216993 M HD
ADS BDS A16385 M ADS BDS N IDS IDS 22524N6611A
HIC
 
 
22561+6643 B
 
 
Coord arcsec 2000 225606.41+664321.2 Mag 12.4 PmRA 19.00 PmDE 21.0
Delta magnitude 3.91 Coordinate calculated yes
CCDM
Ccdm 22561+6643 RComp Comp B Note1
Note2 Discov num BU 849 DRAs DDEs
R dRAs Year 1954 Theta 108 Rho 5.3
Obs 8 Vmag 11.9 Sp PmNote
PmRA 19 PmDE 21 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A16385 M ADS BDS N IDS IDS 22524N6611B
HIC