stampa
Login

Create your own observing lists in a few clicks and save them.
Register here


Search



Actions
Advanced Search
Go to Simbad
New report
New measure
Login


Computed Lists
Populars
Latest Populars
Doubles in session


Current system
21235+5031
HLD 44
HD 203918


Nearby doubles
11' : 21246+5033
TDT2947

21' : 21248+5015
HJ 1645

38' : 21212+5001
KPP4235AB

41' : 21254+5108
SKF2530

42' : 21252+5110
CBL 92

43' : 21195+5048
ES 1005AB

44' : 21190+5039
ES 1004

48' : 21260+4950
HDS3051

62' : 21223+5132
CVR 241

62' : 21296+5010
KPP 877

62' : 21182+4956
HU 692

63' : 21225+4929
HDS3043

64' : 21173+5011
TDT2885

64' : 21287+4952
STF2800

66' : 21238+4926
HJ 1643

69' : 21279+4938
KPP2392

70' : 21295+5111
SKF 57

74' : 21249+4919
ES 2710

74' : 21207+4923
ES 820AB

75' : 21183+4934
COU2654

77' : 21203+4921
BU 839AB

77' : 21311+5008
HU 593

80' : 21265+4917
ES 823

82' : 21320+5023
TDS1133

85' : 21264+4911
ES 822

86' : 21199+5150
STJ 116



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.

21235+5031 HLD 44 (HD 203918)

 
 
21h 23m 29.29s +50° 31' 24.8" P.A. 258.00 sep 2.1 mag 8.19,11.16 Sp F8 dist. 91.07 pc (297.07 l.y.)
 
 
Coord 2000 21235+5031 Discov num HLD  44 Comp Coord arcsec 2000 21 23 29.29 +50 31 24.8
Date first 1881 Date last 2016 Obs 9
Pa first 272 Pa last 257.5 P.A. Now (θ) 257.5°
Sep first 2.7 Sep last 2.116 Sep. Now (ρ) 2.116"
Mag pri 8.19 Mag sec 11.16 delta mag (ΔM) 2.97 Spectral class F8 (yellow-white)
Pri motion ra -071 Sec motion ra -073
Pri motion dec -061 Sec motion dec -064
Notes
rPM=0.037 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 203918 Constellation Cygnus SAO 33380 HIP 105617
Tycho2 3598-00130-1 Gaia DR2 2171908886496893440 HD 203918 ADS 14941
BD BD+49 3513 Distance 91.07 Distance ly 297.07
 
 
WDS 21235+5031 HLD 44 (HD 203918) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Hld1874 Ma - Holden, E.S. .
Hld1874 Washington Observations, 1874
Hld1875 Ma - Holden, E.S. .
Hld1875 Washington Observations, 1875
Hld1875b Ma j Holden, E.S. & Newcomb, S. 1875AN.....86..321H
Hld1875b AN 86, 321, 1875
Hld1875c Ma j Holden, E.S. 1875AN.....86..321H
Hld1875c AN 86, 321, 1875
Hld1876 Ma - Holden, E.S. .
Hld1876 Washington Observations, 1876
Hld1876b Ma j Holden, E.S. 1876AN.....88..131H
Hld1876b AN 88, 131, 1876
Hld1877 Ma - Holden, E.S. 1877AN.....90..161H
Hld1877 AN 90, 161, 1877
Hld1877b Ma j Holden, E.S. 1877AN.....90..161H
Hld1877b AN 90, 161, 1877
Hld1878 Ma - Holden, E.S. .
Hld1878 Washington Observations, 1878
Hld1878b Ma j Holden, E.S. 1878AN.....93...65H
Hld1878b AN 93, 65, 1878 (data also in Hld1878)
Hld1879 Ma - Holden, E.S. .
Hld1879 Washington Observations, 1879
Hld1879b Ma j Holden, E.S. 1879AN.....95..329H
Hld1879b AN 95, 329, 1879 (data also in Hld1879)
Hld1880 Ma - Holden, E.S. .
Hld1880 Washington Observations, 1880
Hld1880b Ma j Holden, E.S. 1880AN.....97..319H
Hld1880b AN 97, 319, 1880 (data also in Hld1880)
Hld1881 Ma - Holden, E.S. .
Hld1881 Washington Observations, 1881
Hld1881b Ma j Holden, E.S. 1881MNRAS..41..416.
Hld1881b MNRAS 41, 416, 1881
Hld1882 Ma - Holden, E.S. 1882PWasO...1...77H
Hld1882 Pub. Washburn Obs. 1, 77, 1882 (see Pub. Lick Obs. 2, 1894) 1894PLicO...2.....B
Hld1884 Ma - Holden, E.S. 1884PWasO...2...97H
Hld1884 Pub. Washburn Obs. 2, 97, 1884
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21235+5031 HLD 44 1991 7 260 2.2 8.19 11.16 F8 212329.29+503124.8
21235+5031 HLD 44 2016 9 258 2.1 8.19 11.16 F8 212329.29+503124.8

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

 
 
WDS 21235+5031 HLD 44 (HD 203918) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21235+5031 HLD 44 (HD 203918) : MEASURES
 
 
No records found.

 
 
WDS 21235+5031 (HD 203918) : VIRTUAL EYEPIECE
 
 

21235+5031 HLD 44A mag 8.19 Sp F8 21235+5031 HLD 44B sep 1.4 P.A. 250.80 mag 11.16 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 21235+5031 (HD 203918) : ALADIN DSS IMAGE @ 21h 23m 29.29s +50° 31' 24.8"
 
 
 
 
WDS 21235+5031 HLD 44 (HD 203918) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21235+5031 HLD 44 distance=0' 21246+5033 TDT2947 distance=11' 21248+5015 HJ 1645 distance=21' 21212+5001 KPP4235AB distance=38' 21254+5108 SKF2530 distance=41' 21252+5110 CBL 92 distance=42' 21195+5048 ES 1005BC distance=43' 21195+5048 ES 1005AB distance=43' 21190+5039 ES 1004 distance=44' 21260+4950 HDS3051 distance=48' 21223+5132 CVR 241 distance=62' 21296+5010 KPP 877 distance=62' 21182+4956 HU 692 distance=62' 21225+4929 HDS3043 distance=63' 21173+5011 TDT2885 distance=64' 21287+4952 STF2800 distance=64' 21238+4926 HJ 1643 distance=66' 21279+4938 KPP2392 distance=69' 21295+5111 SKF 57 distance=70' 21207+4923 ES 820BC distance=74' 21249+4919 ES 2710 distance=74' 21207+4923 ES 820AB distance=74' 21183+4934 COU2654 distance=75' 21203+4921 BU 839AC distance=77' 21203+4921 BU 839AB distance=77' 21311+5008 HU 593 distance=77' 21203+4921 BU 839CB distance=78' 21265+4917 ES 823 distance=80' 21320+5023 TDS1133 distance=82' 21264+4911 ES 822 distance=85' 21199+5150 STJ 116 distance=86' 21323+5054 TDT3019 distance=87' 21196+4913 YR 29 distance=87' 21271+5151 CVR 246 distance=88' 21144+5015 SKF 393 distance=89' 21297+5139 KPP 690BC distance=90' 21260+4905 ES 821 distance=91' 21152+5117 HJ 1631 distance=91' 21304+4926 TDT3002 distance=93' 21148+4946 COU2653 distance=96' 21170+5146 DBR 293 distance=97' 21329+4959 CHR 102AB distance=97' 21329+4959 RBR 52AB,C distance=97' 21331+5001 CLZ 81AB distance=97' 21331+5001 RAO 460AC distance=97' 21339+5045 HDS3070 distance=101' 21342+5026 CVR 250 distance=103' 21342+5029 ES 33 distance=103' 21227+5214 HU 591 distance=103' 21340+5100 COU2546 distance=104' 21259+5214 CVR 244 distance=105' 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 21235+5031 HLD 44 258 2.1
Show 21246+5033 TDT2947 262 0.7 11
Show 21248+5015 HJ 1645 36 8.1 21
Show 21212+5001 KPP4235 AB 90 2.8 38
Show 21254+5108 SKF2530 101 8.1 41
Show 21252+5110 CBL 92 342 9.1 42
Show 21195+5048 ES 1005 BC 126 2.3 43
Show 21195+5048 ES 1005 AB 145 11.5 43
Show 21190+5039 ES 1004 221 7.6 44
Show 21260+4950 HDS3051 213 0.2 48
Show 21223+5132 CVR 241 156 75.0 62
Show 21296+5010 KPP 877 16 7.4 62
Show 21182+4956 HU 692 259 0.4 62
Show 21225+4929 HDS3043 113 0.2 63
Show 21173+5011 TDT2885 13 1.5 64
Show 21287+4952 STF2800 254 9.1 64
Show 21238+4926 HJ 1643 23 27.7 66
Show 21279+4938 KPP2392 33 20.6 69
Show 21295+5111 SKF 57 232 4.5 70
Show 21207+4923 ES 820 BC 293 3.7 74
Show 21249+4919 ES 2710 157 20.1 74
Show 21207+4923 ES 820 AB 60 35.5 74
Show 21183+4934 COU2654 227 1.1 75
Show 21203+4921 BU 839 AC 200 22.5 77
Show 21203+4921 BU 839 AB 207 14.5 77
Show 21311+5008 HU 593 60 1.5 77
Show 21203+4921 BU 839 CB 7 8.1 78
Show 21265+4917 ES 823 280 11.1 80
Show 21320+5023 TDS1133 309 1.1 82
Show 21264+4911 ES 822 24 1.4 85
Show 21199+5150 STJ 116 53 1.4 86
Show 21323+5054 TDT3019 82 0.7 87
Show 21196+4913 YR 29 124 0.2 87
Show 21271+5151 CVR 246 53 69.8 88
Show 21144+5015 SKF 393 206 44.7 89
Show 21297+5139 KPP 690 BC 117 6.2 90
Show 21260+4905 ES 821 276 7.0 91
Show 21152+5117 HJ 1631 16 49.4 91
Show 21304+4926 TDT3002 311 1.7 93
Show 21148+4946 COU2653 66 0.3 96
Show 21170+5146 DBR 293 199 5.5 97
Show 21329+4959 CHR 102 AB 211 0.0 97
Show 21329+4959 RBR 52 AB,C 37 3.8 97
Show 21331+5001 CLZ 81 AB 324 68.6 97
Show 21331+5001 RAO 460 AC 331 1.2 97
Show 21339+5045 HDS3070 347 5.4 101
Show 21342+5026 CVR 250 114 119.7 103
Show 21342+5029 ES 33 69 4.2 103
Show 21227+5214 HU 591 130 0.8 103
Show 21340+5100 COU2546 178 0.8 104
Show 21259+5214 CVR 244 112 54.4 105

 
 
WDS 21235+5031 : COMPONENTS
 
 
  A
B pa=250.8°
sep=1.39"
 
 
21235+5031 A
 
 
Componente originario normalizzato AB Name HD 203918 Coord arcsec 2000 212329.29+503124.8 Mag 8.19
Spectral class F8 (yellow-white) PmRA -71.00 PmDE -61.0 SAO 33380
HIP 105617 Tycho2 3598-00130-1 HD 203918 ADS 14941
BD BD+49 3513
Tycho2
Tycho2 3598-00130-1 Pflag RAmdeg 320.87205678 DEmdeg 50.52356277
PmRA -70.9 PmDE -60.7 E RAmdeg 6 E DEmdeg 6
E pmRA 1.5 E pmDE 1.6 EpRAm 1991.51 EpDEm 1991.51
Num 4 Q RAmdeg 0.3 Q DEmdeg 2.2 Q pmRA 0.3
Q pmDE 2.2 BTmag 8.803 E BTmag 0.017 VTmag 8.189
E VTmag 0.012 Prox 22 TYC T HIP 105617
CCDM A RAdeg 320.87231417 DEdeg 50.52370306 EpRA 1990 1.68
EpDE 1990 1.67 E RAdeg 5.9 E DEdeg 6.1 Posflg P
Corr 0.1
SAO
SAO 33380 DelFlag RA1950 PmRA1950 -0.0077
DE1950 PmDE1950 -0.052 Vmag 7.6 SpType F8
Double code Source 37 CatNum 7049 DM BD+49 3513
DMcomp BDsup HD 203918 M HD 0
GC RA1950rad 5.59284189 DE1950rad 0.87806153 PmRA2000 -0.0074
PmDE2000 -0.055
Hipparcos
Catalog H HIP 105617 Proxy H RAhms 21 23 29.36
DEdms +50 31 25.4 Vmag 8.09 VarFlag R Vmag G
RAdeg 320.872 DEdeg 50.5237 AstroRef A Plx 10.99
CCDM 21235+5031 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 260 Rho 2.25 HD 203918 BD BD+49 3513
CD CP Dm number +49 3513 VIred 0.64
SpType K2III+... R SpType Coord arcsec 2000 212329.36+503125.4
Hipparcos 2
HIP 105617 Sn 15 So 3 Nc 2
RArad 5.6002787169 DErad 0.8818050908 Plx 10.98 PmRA -73.18
PmDE -63.44 E RArad 0.55 E DErad 0.5 E Plx 0.64
E pmRA 0.63 E pmDE 0.56 Hpmag 8.2084 E Hpmag 0.0015
SHp 0.011 VA 0 BV 0.569 E BV 0.009
VI 0.64
CCDM
Ccdm 21235+5031 RComp Comp A Note1
Note2 Discov num DRAs -0.64 DDEs 26.1
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.4 Sp F8 PmNote *
PmRA -64 PmDE -40 Dm number +49 3513 Cat1 BD
Name2 +50 1627 Cat2 AGK2/3 HD 203918 M HD
ADS BDS A14941 M ADS BDS N IDS IDS 21201N5006A
HIC 105617
 
 
21235+5031 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 212329.15+503124.3 Mag 11.16 PmRA -73.00
PmDE -64.0 Calc delta mag 2.97 Calc coord yes
CCDM
Ccdm 21235+5031 RComp Comp B Note1
Note2 Discov num HLD 44 DRAs DDEs
R dRAs Year 1881 Theta 267 Rho 2.7
Obs 4 Vmag 10.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14941 M ADS BDS N IDS IDS 21201N5006B
HIC 105617