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Current system
21016+4730
HDS 2997
HD 200406


Nearby doubles
8' : 21009+4730
BU 1290AB

10' : 21011+4738
RAO 446

19' : 20598+4731
STF2743AB

23' : 20598+4743
ES 815

31' : 20587+4734
A 757

33' : 21019+4802
COU2650

40' : 20597+4658
ES 1166

44' : 21037+4652
YSC 14

45' : 21043+4806
ARN 51

46' : 21057+4748
BU 158AB

46' : 20577+4752
KPP2318

49' : 21055+4758
ES 816

50' : 21022+4641
ES 1167AB

51' : 21066+4739
ES 32

52' : 21063+4751
BUP9010AB

55' : 20566+4712
HDS2982

56' : 20567+4754
ES 814AB

57' : 21008+4635
BU 156

57' : 20571+4658
TDS1108

57' : 21068+4708
ES 1169

59' : 21072+4744
ES 817AB

60' : 20558+4722
TOB 200

61' : 21070+4704
BRT1142

62' : 21032+4631
TDT2714

62' : 21077+4718
A 759

63' : 20555+4722
TOB 201AB



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

21016+4730 HDS 2997 (HD 200406)

 
 
21h 01m 38.66s +47° 30' 06.6" P.A. 232.00 sep 1.9 mag 8.08,11.82 Sp K2III+... dist. 67.84 pc (221.29 l.y.)
 
 
Coord 2000 21016+4730 Discov num HDS2997 Comp Coord arcsec 2000 21 01 38.66 +47 30 06.6
Date first 1991 Date last 2016 Obs 6
Pa first 171 Pa last 231.8 P.A. Now (θ) 231.8°
Sep first 0.6 Sep last 1.881 Sep. Now (ρ) 1.881"
Mag pri 8.08 Mag sec 11.82 delta mag (ΔM) 3.74 Spectral class K2III+... (yellow-orange)
Pri motion ra +099 Sec motion ra
Pri motion dec +046 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 200406 Constellation Cygnus SAO 50366 HIP 103767
Tycho2 3592-05975-1 Gaia DR2 2163902315851963264 HD 200406 BD BD+46 3145
Distance 67.84 Distance ly 221.29
 
 
WDS 21016+4730 HDS 2997 (HD 200406) : 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
21016+4730 HDS2997 2001 3 234 1.8 8.08 11.82 K2III+... 210138.66+473006.6
21016+4730 HDS2997 2007 5 233 1.9 8.08 11.82 K2III+... 210138.66+473006.6
21016+4730 HDS2997 2016 6 232 1.9 8.08 11.82 K2III+... 210138.66+473006.6

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

 
 
WDS 21016+4730 HDS 2997 (HD 200406) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21016+4730 HDS 2997 (HD 200406) : MEASURES
 
 
No records found.

 
 
WDS 21016+4730 (HD 200406) : VIRTUAL EYEPIECE
 
 

21016+4730 HDS2997A mag 8.08 Sp K2III 21016+4730 HDS2997B sep 1.5 P.A. 220.60 mag 11.82 Sp ... 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 21016+4730 (HD 200406) : ALADIN DSS IMAGE @ 21h 01m 38.66s +47° 30' 06.6"
 
 
 
 
WDS 21016+4730 HDS 2997 (HD 200406) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21016+4730 HDS2997 distance=0' 21009+4730 BU 1290BD distance=8' 21009+4730 BU 1290AB distance=8' 21009+4730 BU 1290AC distance=8' 21011+4738 RAO 446 distance=10' 20598+4731 MCA 65Aa,Ab distance=19' 20598+4731 STF2743AB distance=19' 20598+4731 STF2743AC distance=19' 20598+4731 STF2743AD distance=19' 20598+4731 STF2743AE distance=19' 20598+4743 ES 815 distance=23' 20587+4734 A 757 distance=31' 21019+4802 COU2650 distance=33' 20597+4658 ES 1166 distance=40' 21037+4652 YSC 14 distance=44' 21043+4806 ARN 51 distance=45' 21057+4748 BU 158AB distance=46' 20577+4752 KPP2318 distance=46' 21055+4758 ES 816 distance=49' 21022+4641 ES 1167AB distance=50' 21022+4641 ES 1167AC distance=50' 21066+4739 ES 32 distance=51' 21063+4751 BUP9010AB distance=52' 21063+4751 BUP9010AC distance=52' 21063+4751 BUP9010AD distance=52' 20566+4712 HDS2982 distance=55' 20567+4754 ES 814AB distance=56' 20567+4754 CRB 14AC distance=56' 21008+4635 BU 156 distance=57' 20571+4658 TDS1108 distance=57' 21068+4708 ES 1169 distance=57' 21072+4744 ES 817AB distance=59' 21072+4744 ES 817AC distance=59' 21072+4744 ES 817AD distance=59' 20558+4722 TOB 200 distance=60' 21070+4704 BRT1142 distance=61' 21032+4631 TDT2714 distance=62' 21077+4718 A 759 distance=62' 20555+4722 TOB 201CD distance=63' 20555+4722 TOB 201AB distance=63' 20555+4722 TOB 201AC distance=63' 20555+4722 TOB 201AD distance=63' 20555+4723 TDT2632Aa,Ab distance=64' 20555+4723 ES 95AB distance=64' 20555+4723 HJ 1597AC distance=64' 20557+4755 ES 813 distance=64' 20573+4818 HDS2987 distance=65' 21044+4631 HDS3001 distance=66' 21046+4627 BRT1140 distance=70' 21044+4626 DAL 49 distance=71' 20585+4626 TDT2667 distance=72' 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 21016+4730 HDS2997 232 1.9
Show 21009+4730 BU 1290 BD 22 2.5 8
Show 21009+4730 BU 1290 AB 35 9.3 8
Show 21009+4730 BU 1290 AC 266 3.5 8
Show 21011+4738 RAO 446 338 1.7 10
Show 20598+4731 MCA 65 Aa,Ab 334 0.1 19
Show 20598+4731 STF2743 AB 353 21.0 19
Show 20598+4731 STF2743 AC 140 26.5 19
Show 20598+4731 STF2743 AD 222 39.3 19
Show 20598+4731 STF2743 AE 59 70.6 19
Show 20598+4743 ES 815 229 6.4 23
Show 20587+4734 A 757 103 4.1 31
Show 21019+4802 COU2650 256 2.0 33
Show 20597+4658 ES 1166 114 1.6 40
Show 21037+4652 YSC 14 182 0.1 44
Show 21043+4806 ARN 51 340 47.3 45
Show 21057+4748 BU 158 AB 304 11.0 46
Show 20577+4752 KPP2318 76 19.6 46
Show 21055+4758 ES 816 36 2.6 49
Show 21022+4641 ES 1167 AB 226 5.2 50
Show 21022+4641 ES 1167 AC 73 18.8 50
Show 21066+4739 ES 32 159 15.7 51
Show 21063+4751 BUP9010 AB 61 28.5 52
Show 21063+4751 BUP9010 AC 315 50.0 52
Show 21063+4751 BUP9010 AD 322 53.9 52
Show 20566+4712 HDS2982 161 0.1 55
Show 20567+4754 ES 814 AB 6.0 56
Show 20567+4754 CRB 14 AC 58 6.4 56
Show 21008+4635 BU 156 235 0.9 57
Show 20571+4658 TDS1108 96 1.0 57
Show 21068+4708 ES 1169 89 4.8 57
Show 21072+4744 ES 817 AB 350 10.0 59
Show 21072+4744 ES 817 AC 347 22.2 59
Show 21072+4744 ES 817 AD 85 23.7 59
Show 20558+4722 TOB 200 91 11.5 60
Show 21070+4704 BRT1142 220 4.6 61
Show 21032+4631 TDT2714 22 0.5 62
Show 21077+4718 A 759 24 4.1 62
Show 20555+4722 TOB 201 CD 71 10.3 63
Show 20555+4722 TOB 201 AB 82 20.0 63
Show 20555+4722 TOB 201 AC 146 13.4 63
Show 20555+4722 TOB 201 AD 114 18.9 63
Show 20555+4723 TDT2632 Aa,Ab 169 0.6 64
Show 20555+4723 ES 95 AB 268 6.5 64
Show 20555+4723 HJ 1597 AC 127 13.6 64
Show 20557+4755 ES 813 237 7.3 64
Show 20573+4818 HDS2987 3 0.4 65
Show 21044+4631 HDS3001 94 18.4 66
Show 21046+4627 BRT1140 207 4.6 70
Show 21044+4626 DAL 49 147 12.1 71
Show 20585+4626 TDT2667 17 1.1 72

 
 
WDS 21016+4730 : COMPONENTS
 
 
  A
B pa=220.6°
sep=1.53"
 
 
21016+4730 A
 
 
Componente originario normalizzato AB Name HD 200406 Coord arcsec 2000 210138.66+473006.6 Mag 8.08
Spectral class K2III (yellow-orange) PmRA 99.00 PmDE 46.0 SAO 50366
HIP 103767 Tycho2 3592-05975-1 HD 200406 BD BD+46 3145
Tycho2
Tycho2 3592-05975-1 Pflag RAmdeg 315.41143800 DEmdeg 47.50193435
PmRA 100.1 PmDE 47.4 E RAmdeg 6 E DEmdeg 6
E pmRA 1.6 E pmDE 1.6 EpRAm 1991.33 EpDEm 1991.27
Num 7 Q RAmdeg 1.2 Q DEmdeg 1.0 Q pmRA 1.1
Q pmDE 0.9 BTmag 8.561 E BTmag 0.017 VTmag 8.011
E VTmag 0.012 Prox 999 TYC T HIP 103767
CCDM AB RAdeg 315.41109333 DEdeg 47.50182361 EpRA 1990 1.62
EpDE 1990 1.59 E RAdeg 5.6 E DEdeg 5.9 Posflg P
Corr -0.1
SAO
SAO 50366 DelFlag RA1950 PmRA1950 0.0101
DE1950 PmDE1950 0.046 Vmag 8.4 SpType F8
Double code Source 3 CatNum 1684 DM BD+46 3145
DMcomp BDsup HD 200406 M HD 0
GC RA1950rad 5.49747217 DE1950rad 0.82560725 PmRA2000 0.0105
PmDE2000 0.043
Hipparcos
Catalog H HIP 103767 Proxy H RAhms 21 01 38.66
DEdms +47 30 06.6 Vmag 7.93 VarFlag R Vmag H
RAdeg 315.411 DEdeg 47.5018 AstroRef A Plx 14.62
CCDM 21016+4730 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual D M HIP AB
Theta 171 Rho 0.55 HD 200406 BD BD+46 3145
CD CP Dm number +46 3145 VIred 0.6
SpType K2III+... R SpType Coord arcsec 2000 210138.66+473006.6
Hipparcos 2
HIP 103767 Sn 15 So 3 Nc 2
RArad 5.5049618005 DErad 0.8290631918 Plx 14.74 PmRA 100.45
PmDE 44.49 E RArad 0.63 E DErad 0.59 E Plx 0.74
E pmRA 0.74 E pmDE 0.68 Hpmag 8.0487 E Hpmag 0.0015
SHp 0.012 VA 0 BV 0.529 E BV 0.007
VI 0.6
CCDM
Ccdm 21016+4730 RComp Comp A Note1
Note2 Discov num DRAs 2.74 DDEs 7.0
R dRAs 82 Year Theta Rho
Obs 2 Vmag 8.1 Sp K2 PmNote *
PmRA 99 PmDE 46 Dm number +46 3145 Cat1 BD
Name2 +47 1684 Cat2 AGK2/3 HD 200406 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 103767
 
 
21016+4730 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 210138.56+473005.4 Mag 11.82 Spectral class ...
Calc delta mag 3.74 Calc coord yes
CCDM
Ccdm 21016+4730 RComp Comp B Note1
Note2 Discov num HDS DRAs 2.75 DDEs 6.4
R dRAs 82 Year 1991 Theta 171 Rho 0.6
Obs 1 Vmag 11.8 Sp PmNote *
PmRA 99 PmDE 46 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 103767