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Doubles in session


Current system
21260+4950
HDS 3051
HD 204305


Nearby doubles
23' : 21279+4938
KPP2392

27' : 21287+4952
STF2800

28' : 21248+5015
HJ 1645

33' : 21249+4919
ES 2710

33' : 21238+4926
HJ 1643

34' : 21265+4917
ES 823

39' : 21264+4911
ES 822

40' : 21296+5010
KPP 877

41' : 21225+4929
HDS3043

45' : 21246+5033
TDT2947

46' : 21260+4905
ES 821

48' : 21235+5031
HLD 44

48' : 21212+5001
KPP4235AB

49' : 21304+4926
TDT3002

53' : 21311+5008
HU 593

59' : 21207+4923
ES 820AB

63' : 21203+4921
BU 839AB

66' : 21320+5023
TDS1133

68' : 21329+4959
CHR 102AB

69' : 21331+5001
CLZ 81AB

73' : 21196+4913
YR 29

74' : 21306+4852
OSO 148AB

75' : 21300+4848
SWN 2

76' : 21183+4934
COU2654

76' : 21182+4956
HU 692

78' : 21314+4853
SWN 4



Selections
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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.

21260+4950 HDS 3051 (HD 204305)

 
 
21h 26m 01.01s +49° 50' 24.8" P.A. 213.00 sep 0.2 mag 9.48,10.14 Sp A2 dist. 653.59 pc (2132.01 l.y.)
 
 
Coord 2000 21260+4950 Discov num HDS3051 Comp Coord arcsec 2000 21 26 01.01 +49 50 24.8
Date first 1991 Date last 2006 Obs 2
Pa first 203 Pa last 213.4 P.A. Now (θ) 213.4°
Sep first 0.2 Sep last 0.199 Sep. Now (ρ) 0.199"
Mag pri 9.48 Mag sec 10.14 delta mag (ΔM) 0.66 Spectral class A2 (white)
Pri motion ra -007 Sec motion ra
Pri motion dec -012 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 204305 Constellation Cygnus SAO 50844 HIP 105825
Tycho2 3598-01567-1 Gaia DR2 2171068863921555328 HD 204305 BD BD+49 3521
Distance 653.59 Distance ly 2132.01
 
 
WDS 21260+4950 HDS 3051 (HD 204305) : 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
21260+4950 HDS3051 1991 1 203 0.2 9.48 10.14 A2 212601.01+495024.8
21260+4950 HDS3051 2006 2 213 0.2 9.48 10.14 A2 212601.01+495024.8

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

 
 
WDS 21260+4950 HDS 3051 (HD 204305) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21260+4950 HDS 3051 (HD 204305) : MEASURES
 
 
No records found.

 
 
WDS 21260+4950 (HD 204305) : VIRTUAL EYEPIECE
 
 

21260+4950 HDS3051A mag 9.48 Sp A2 21260+4950 HDS3051B sep 0.2 P.A. 203.00 mag 10.14 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 21260+4950 (HD 204305) : ALADIN DSS IMAGE @ 21h 26m 01.01s +49° 50' 24.8"
 
 
 
 
WDS 21260+4950 HDS 3051 (HD 204305) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21260+4950 HDS3051 distance=0' 21279+4938 KPP2392 distance=23' 21287+4952 STF2800 distance=27' 21248+5015 HJ 1645 distance=28' 21249+4919 ES 2710 distance=33' 21238+4926 HJ 1643 distance=33' 21265+4917 ES 823 distance=34' 21264+4911 ES 822 distance=39' 21296+5010 KPP 877 distance=40' 21225+4929 HDS3043 distance=41' 21246+5033 TDT2947 distance=45' 21260+4905 ES 821 distance=46' 21235+5031 HLD 44 distance=48' 21212+5001 KPP4235AB distance=48' 21304+4926 TDT3002 distance=49' 21311+5008 HU 593 distance=53' 21207+4923 ES 820BC distance=58' 21207+4923 ES 820AB distance=59' 21203+4921 BU 839AC distance=63' 21203+4921 BU 839AB distance=63' 21203+4921 BU 839CB distance=64' 21320+5023 TDS1133 distance=66' 21329+4959 CHR 102AB distance=68' 21329+4959 RBR 52AB,C distance=68' 21331+5001 CLZ 81AB distance=69' 21331+5001 RAO 460AC distance=69' 21196+4913 YR 29 distance=73' 21306+4852 OSO 148AB distance=74' 21306+4852 OSO 148AC distance=74' 21306+4852 OSO 148AD distance=74' 21300+4848 SWN 2 distance=75' 21183+4934 COU2654 distance=76' 21182+4956 HU 692 distance=76' 21314+4853 SWN 4 distance=78' 21254+5108 SKF2530 distance=78' 21252+5110 CBL 92 distance=80' 21295+4836 SWN 1 distance=82' 21190+5039 ES 1004 distance=84' 21231+4831 HDS3045 distance=85' 21195+5048 ES 1005BC distance=87' 21342+5026 CVR 250 distance=87' 21195+5048 ES 1005AB distance=87' 21173+5011 TDT2885 distance=87' 21342+5029 ES 33 distance=88' 21323+5054 TDT3019 distance=88' 21295+5111 SKF 57 distance=88' 21326+4850 SWN 9 distance=89' 21304+4832 SWN 3 distance=90' 21332+4853 TDT3028 distance=92' 21254+4818 ES 1102AB distance=92' 21254+4818 CRB 7Ca,Cb distance=93' 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 21260+4950 HDS3051 213 0.2
Show 21279+4938 KPP2392 33 20.6 23
Show 21287+4952 STF2800 254 9.1 27
Show 21248+5015 HJ 1645 36 8.1 28
Show 21249+4919 ES 2710 157 20.1 33
Show 21238+4926 HJ 1643 23 27.7 33
Show 21265+4917 ES 823 280 11.1 34
Show 21264+4911 ES 822 24 1.4 39
Show 21296+5010 KPP 877 16 7.4 40
Show 21225+4929 HDS3043 113 0.2 41
Show 21246+5033 TDT2947 262 0.7 45
Show 21260+4905 ES 821 276 7.0 46
Show 21235+5031 HLD 44 258 2.1 48
Show 21212+5001 KPP4235 AB 90 2.8 48
Show 21304+4926 TDT3002 311 1.7 49
Show 21311+5008 HU 593 60 1.5 53
Show 21207+4923 ES 820 BC 293 3.7 58
Show 21207+4923 ES 820 AB 60 35.5 59
Show 21203+4921 BU 839 AC 200 22.5 63
Show 21203+4921 BU 839 AB 207 14.5 63
Show 21203+4921 BU 839 CB 7 8.1 64
Show 21320+5023 TDS1133 309 1.1 66
Show 21329+4959 CHR 102 AB 211 0.0 68
Show 21329+4959 RBR 52 AB,C 37 3.8 68
Show 21331+5001 CLZ 81 AB 324 68.6 69
Show 21331+5001 RAO 460 AC 331 1.2 69
Show 21196+4913 YR 29 124 0.2 73
Show 21306+4852 OSO 148 AB 170 16.1 74
Show 21306+4852 OSO 148 AC 119 23.8 74
Show 21306+4852 OSO 148 AD 346 18.6 74
Show 21300+4848 SWN 2 352 3.1 75
Show 21183+4934 COU2654 227 1.1 76
Show 21182+4956 HU 692 259 0.4 76
Show 21314+4853 SWN 4 56 0.9 78
Show 21254+5108 SKF2530 101 8.1 78
Show 21252+5110 CBL 92 342 9.1 80
Show 21295+4836 SWN 1 2 5.3 82
Show 21190+5039 ES 1004 221 7.6 84
Show 21231+4831 HDS3045 63 0.1 85
Show 21195+5048 ES 1005 BC 126 2.3 87
Show 21342+5026 CVR 250 114 119.7 87
Show 21195+5048 ES 1005 AB 145 11.5 87
Show 21173+5011 TDT2885 13 1.5 87
Show 21342+5029 ES 33 69 4.2 88
Show 21323+5054 TDT3019 82 0.7 88
Show 21295+5111 SKF 57 232 4.5 88
Show 21326+4850 SWN 9 258 15.4 89
Show 21304+4832 SWN 3 142 1.0 90
Show 21332+4853 TDT3028 126 0.7 92
Show 21254+4818 ES 1102 AB 195 49.1 92
Show 21254+4818 CRB 7 Ca,Cb 110 1.6 93

 
 
WDS 21260+4950 : COMPONENTS
 
 
  A
B pa=203.0°
sep=0.18"
 
 
21260+4950 A
 
 
Componente originario normalizzato AB Name HD 204305 Coord arcsec 2000 212601.01+495024.8 Mag 9.48
Spectral class A2 (white) PmRA -7.00 PmDE -12.0 SAO 50844
HIP 105825 Tycho2 3598-01567-1 HD 204305 BD BD+49 3521
Tycho2
Tycho2 3598-01567-1 Pflag RAmdeg 321.50417082 DEmdeg 49.84018868
PmRA -7.7 PmDE -12.5 E RAmdeg 7 E DEmdeg 8
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.25 EpDEm 1991.09
Num 8 Q RAmdeg 1.3 Q DEmdeg 0.5 Q pmRA 1.3
Q pmDE 0.4 BTmag 9.108 E BTmag 0.017 VTmag 8.975
E VTmag 0.015 Prox 999 TYC T HIP 105825
CCDM AB RAdeg 321.50419944 DEdeg 49.84021778 EpRA 1990 1.75
EpDE 1990 1.63 E RAdeg 7.3 E DEdeg 8.2 Posflg P
Corr 0.1
SAO
SAO 50844 DelFlag RA1950 PmRA1950 -0.0025
DE1950 PmDE1950 -0.004 Vmag 8.6 SpType A2
Double code Source 3 CatNum 1801 DM BD+49 3521
DMcomp BDsup HD 204305 M HD 0
GC RA1950rad 5.60371053 DE1950rad 0.86608876 PmRA2000 -0.0022
PmDE2000 -0.007
Hipparcos
Catalog H HIP 105825 Proxy H RAhms 21 26 01.01
DEdms +49 50 24.8 Vmag 8.97 VarFlag R Vmag G
RAdeg 321.504 DEdeg 49.8402 AstroRef * Plx 1.49
CCDM 21260+4950 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 203 Rho 0.214 HD 204305 BD BD+49 3521
CD CP Dm number +49 3521 VIred 0.13
SpType A2 R SpType Coord arcsec 2000 212601.01+495024.8
Hipparcos 2
HIP 105825 Sn 55 So 3 Nc 2
RArad 5.6113068336 DErad 0.8698758963 Plx 1.53 PmRA -7.34
PmDE -11.3 E RArad 0.67 E DErad 0.57 E Plx 0.75
E pmRA 0.82 E pmDE 0.67 Hpmag 9.0059 E Hpmag 0.0015
SHp 0.015 VA 0 BV 0.116 E BV 0.009
VI 0.13
CCDM
Ccdm 21260+4950 RComp Comp A Note1
Note2 Discov num DRAs 1.00 DDEs 24.8
R dRAs 82 Year Theta Rho
Obs 2 Vmag 9.5 Sp A2 PmNote *
PmRA -7 PmDE -12 Dm number +49 3521 Cat1 BD
Name2 +49 1801 Cat2 AGK2/3 HD 204305 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 105825
 
 
21260+4950 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 212601.00+495024.6 Mag 10.14 Calc delta mag 0.66
Calc coord yes
CCDM
Ccdm 21260+4950 RComp Comp B Note1
Note2 Discov num HDS DRAs 0.99 DDEs 24.5
R dRAs 82 Year 1991 Theta 203 Rho 0.2
Obs 1 Vmag 10.1 Sp PmNote *
PmRA -7 PmDE -12 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 105825