stampa
Login

About to create a great list of doubles? Share it with other users!
Create your account here


Search



Actions
Advanced Search
Go to Simbad
New report
New measure
Login


Computed Lists
Populars
Latest Populars
Doubles in session


Current system
21203+4921
BU 839 AB
HD 203416


Nearby doubles
5' : 21207+4923
ES 820AB

11' : 21196+4913
YR 29

23' : 21225+4929
HDS3043

24' : 21183+4934
COU2654

35' : 21238+4926
HJ 1643

41' : 21182+4956
HU 692

41' : 21212+5001
KPP4235AB

46' : 21249+4919
ES 2710

58' : 21231+4831
HDS3045

58' : 21173+5011
TDT2885

59' : 21260+4905
ES 821

60' : 21148+4946
COU2653

61' : 21264+4911
ES 822

61' : 21142+4930
ES 819

61' : 21265+4917
ES 823

63' : 21260+4950
HDS3051

68' : 21157+4832
HDS3024

70' : 21248+5015
HJ 1645

76' : 21279+4938
KPP2392

77' : 21235+5031
HLD 44

78' : 21127+4900
COU2652

79' : 21212+4804
ES 678

79' : 21144+5015
SKF 393

80' : 21190+5039
ES 1004

81' : 21254+4818
ES 1102AB

83' : 21246+5033
TDT2947



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.

21203+4921 BU 839 AB (HD 203416)

 
 
21h 20m 18.92s +49° 21' 08.5" P.A. 207.00 sep 14.5 mag 8.55,10.08 Sp M6III
 
 
Coord 2000 21203+4921 Discov num BU  839 Comp AB Coord arcsec 2000 21 20 18.92 +49 21 08.5
Date first 1881 Date last 2016 Obs 15
Pa first 202 Pa last 207.2 P.A. Now (θ) 207.2°
Sep first 15.2 Sep last 14.52 Sep. Now (ρ) 14.52"
Mag pri 8.55 Mag sec 10.08 delta mag (ΔM) 1.53 Spectral class M6III (red)
Pri motion ra +019 Sec motion ra +012
Pri motion dec +000 Sec motion dec +008
Notes
rPM=0.559
Nature of this double is uncertain.
 
 
21203+4921 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 203416 50731 21 20 19 +49 21 08 BU 839 AB 2016 15 207 14.5 8.55 10.08 1.53 <===
Show 50731 21 20 19 +49 21 08 BU 839 AC 2016 21 200 22.5 8.55 9.01 0.46
Show 21 20 17 +49 20 36 BU 839 CB 2016 9 7 8.1 9.01 10.08 1.07
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 203416 Constellation Cygnus SAO 50731 Tycho2 3597-00520-1
Gaia DR2 2165085321641897472 HD 203416
 
 
WDS 21203+4921 BU 839 AB (HD 203416) : 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
21203+4921 BU 839 AB 1996 8 205 15.3 8.26 11.80 M6III +48 3348 D 212018.92+492108.5
21203+4921 BU 839 AB 2003 9 207 14.5 8.30 12.00 M6III +48 3348 D 212018.92+492108.5
21203+4921 BU 839 AB 2016 12 208 14.5 8.55 10.08 M6III +48 3348 212018.92+492108.5

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

 
 
WDS 21203+4921 BU 839 AB (HD 203416) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21203+4921 BU 839 AB (HD 203416) : MEASURES
 
 
No records found.

 
 
WDS 21203+4921 (HD 203416) : VIRTUAL EYEPIECE
 
 

21203+4921 BU 839A mag 8.55 Sp M6III 21203+4921 BU 839B sep 14.5 P.A. 207.20 mag 10.08 21203+4921 BU 839C sep 35.8 P.A. 203.50 mag 9.01 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 21203+4921 (HD 203416) : ALADIN DSS IMAGE @ 21h 20m 18.92s +49° 21' 08.5"
 
 
 
 
WDS 21203+4921 BU 839 AB (HD 203416) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21203+4921 BU 839AB distance=0' 21203+4921 BU 839CB distance=1' 21207+4923 ES 820AB distance=5' 21207+4923 ES 820BC distance=5' 21196+4913 YR 29 distance=11' 21225+4929 HDS3043 distance=23' 21183+4934 COU2654 distance=24' 21238+4926 HJ 1643 distance=35' 21182+4956 HU 692 distance=41' 21212+5001 KPP4235AB distance=41' 21249+4919 ES 2710 distance=46' 21231+4831 HDS3045 distance=58' 21173+5011 TDT2885 distance=58' 21260+4905 ES 821 distance=59' 21148+4946 COU2653 distance=60' 21264+4911 ES 822 distance=61' 21142+4930 ES 819 distance=61' 21265+4917 ES 823 distance=61' 21260+4950 HDS3051 distance=63' 21157+4832 HDS3024 distance=68' 21248+5015 HJ 1645 distance=70' 21279+4938 KPP2392 distance=76' 21235+5031 HLD 44 distance=77' 21127+4900 COU2652 distance=78' 21212+4804 ES 678 distance=79' 21144+5015 SKF 393 distance=79' 21190+5039 ES 1004 distance=80' 21254+4818 ES 1102AB distance=81' 21254+4818 CRB 7Ca,Cb distance=81' 21254+4818 ES 1102CD distance=81' 21254+4818 ES 1102BC distance=81' 21246+5033 TDT2947 distance=83' 21184+4802 HJ 1633 distance=85' 21287+4952 STF2800 distance=88' 21195+5048 ES 1005BC distance=89' 21195+5048 ES 1005AB distance=89' 21242+4801 SKF2397 distance=90' 21119+4845 STJ 110 distance=91' 21117+4849 COU2651 distance=91' 21246+4801 HJ 1644AB distance=91' 21246+4801 HJ 1644AC distance=91' 21119+4838 HJ 1624 distance=93' 21185+4747 HJ 1635AB distance=96' 21185+4747 HJ 1635AC distance=96' 21185+4747 HJ 1635AD distance=96' 21129+4820 HJ 1625 distance=97' 21304+4926 TDT3002 distance=99' 21295+4836 SWN 1 distance=101' 21300+4848 SWN 2 distance=102' 21100+4908 FMR 233 distance=102' 21296+5010 KPP 877 distance=102' 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 21203+4921 BU 839 AC 200 22.5 0
Show 21203+4921 BU 839 AB 207 14.5 0
Show 21203+4921 BU 839 CB 7 8.1 1
Show 21207+4923 ES 820 AB 60 35.5 5
Show 21207+4923 ES 820 BC 293 3.7 5
Show 21196+4913 YR 29 124 0.2 11
Show 21225+4929 HDS3043 113 0.2 23
Show 21183+4934 COU2654 227 1.1 24
Show 21238+4926 HJ 1643 23 27.7 35
Show 21182+4956 HU 692 256 0.4 41
Show 21212+5001 KPP4235 AB 90 2.8 41
Show 21249+4919 ES 2710 157 20.1 46
Show 21231+4831 HDS3045 63 0.1 58
Show 21173+5011 TDT2885 156 2.2 58
Show 21260+4905 ES 821 276 7.0 59
Show 21148+4946 COU2653 66 0.3 60
Show 21264+4911 ES 822 24 1.4 61
Show 21142+4930 ES 819 203 5.0 61
Show 21265+4917 ES 823 280 11.1 61
Show 21260+4950 HDS3051 213 0.2 63
Show 21157+4832 HDS3024 328 0.3 68
Show 21248+5015 HJ 1645 36 8.1 70
Show 21279+4938 KPP2392 33 20.6 76
Show 21235+5031 HLD 44 258 2.1 77
Show 21127+4900 COU2652 339 0.7 78
Show 21212+4804 ES 678 115 4.4 79
Show 21144+5015 SKF 393 206 44.7 79
Show 21190+5039 ES 1004 221 7.6 80
Show 21254+4818 ES 1102 AB 195 49.1 81
Show 21254+4818 CRB 7 Ca,Cb 110 1.6 81
Show 21254+4818 ES 1102 CD 110 3.6 81
Show 21254+4818 ES 1102 BC 38 7.0 81
Show 21246+5033 TDT2947 262 0.7 83
Show 21184+4802 HJ 1633 67 9.9 85
Show 21287+4952 STF2800 254 9.1 88
Show 21195+5048 ES 1005 BC 126 2.3 89
Show 21195+5048 ES 1005 AB 145 11.5 89
Show 21242+4801 SKF2397 246 2.8 90
Show 21119+4845 STJ 110 114 1.3 91
Show 21117+4849 COU2651 13 0.9 91
Show 21246+4801 HJ 1644 AB 114 24.1 91
Show 21246+4801 HJ 1644 AC 42 37.7 91
Show 21119+4838 HJ 1624 190 6.2 93
Show 21185+4747 HJ 1635 AB 344 17.0 96
Show 21185+4747 HJ 1635 AC 82 19.2 96
Show 21185+4747 HJ 1635 AD 241 17.5 96
Show 21129+4820 HJ 1625 71 11.8 97
Show 21304+4926 TDT3002 311 1.7 99
Show 21295+4836 SWN 1 2 5.3 101
Show 21300+4848 SWN 2 352 3.1 102
Show 21100+4908 FMR 233 255 8.7 102

 
 
WDS 21203+4921 : COMPONENTS
 
 
  A B
B pa=207.2°
sep=14.52"
 
C pa=203.5°
sep=35.77"
pa=201.0°
sep=21.30"
 
 
21203+4921 A
 
 
Name HD 203416 Coord arcsec 2000 212018.92+492108.5 Mag 8.55 Spectral class M6III (red)
PmRA 19.00 PmDE 0.0 SAO 50731 Tycho2 3597-00520-1
HD 203416 DM BD+48 3348
Tycho2
Tycho2 3597-00520-1 Pflag RAmdeg 320.07884752 DEmdeg 49.35238420
PmRA 18.7 PmDE 0.3 E RAmdeg 7 E DEmdeg 8
E pmRA 1.3 E pmDE 1.3 EpRAm 1991.31 EpDEm 1991.09
Num 7 Q RAmdeg 0.7 Q DEmdeg 1.1 Q pmRA 0.8
Q pmDE 1.2 BTmag 9.892 E BTmag 0.024 VTmag 8.263
E VTmag 0.012 Prox 999 TYC T HIP
CCDM RAdeg 320.07878194 DEdeg 49.35238361 EpRA 1990 1.77
EpDE 1990 1.63 E RAdeg 6.7 E DEdeg 7.6 Posflg
Corr 0.1
SAO
SAO 50731 DelFlag RA1950 PmRA1950 0.0023
DE1950 PmDE1950 0.007 Vmag 8.3 SpType Mb
Double code Source 3 CatNum 1782 DM BD+48 3348
DMcomp BDsup HD 203416 M HD 0
GC RA1950rad 5.57887366 DE1950rad 0.85764681 PmRA2000 0.0026
PmDE2000 0.004
CCDM
Ccdm 21203+4921 RComp Comp A Note1
Note2 Discov num DRAs 0.89 DDEs 9.6
R dRAs 10 Year Theta Rho
Obs 3 Vmag 8.3 Sp M2 PmNote *
PmRA 23 PmDE 15 Dm number +48 3348 Cat1 BD
Name2 +49 1782 Cat2 AGK2/3 HD 203416 M HD
ADS BDS A14885 M ADS BDS N IDS IDS 21168N4855A
HIC
 
 
21203+4921 B
 
 
Coord arcsec 2000 212018.24+492055.6 Mag 10.08 PmRA 12.00 PmDE 8.0
Delta magnitude 1.53 Coordinate calculated yes
CCDM
Ccdm 21203+4921 RComp Comp B Note1
Note2 Discov num BU 839 DRAs DDEs
R dRAs Year 1881 Theta 201 Rho 15.1
Obs 4 Vmag 11.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14885 M ADS BDS N IDS IDS 21168N4855B
HIC
 
 
21203+4921 C
 
 
Coord arcsec 2000 212017.46+492035.7 Coord calc 212017.46+492035.7 Mag 9.01 Delta magnitude 0.46
CCDM
Ccdm 21203+4921 RComp Comp C Note1
Note2 Discov num BU 839 DRAs 0.18 DDEs -12.5
R dRAs 10 Year 1881 Theta 197 Rho 21.5
Obs 5 Vmag 9.6 Sp PmNote *
PmRA 16 PmDE -9 Dm number Cat1
Name2 +49 1781 Cat2 AGK2/3 HD M HD
ADS BDS A14885 M ADS BDS N IDS IDS 21168N4855C
HIC