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Doubles in session


Current system
21248+5015
HJ 1645
HD 204118


Nearby doubles
19' : 21246+5033
TDT2947

21' : 21235+5031
HLD 44

28' : 21260+4950
HDS3051

38' : 21212+5001
KPP4235AB

44' : 21287+4952
STF2800

46' : 21296+5010
KPP 877

48' : 21279+4938
KPP2392

51' : 21238+4926
HJ 1643

51' : 21225+4929
HDS3043

54' : 21254+5108
SKF2530

55' : 21252+5110
CBL 92

56' : 21249+4919
ES 2710

61' : 21265+4917
ES 823

61' : 21311+5008
HU 593

62' : 21190+5039
ES 1004

63' : 21195+5048
ES 1005AB

66' : 21264+4911
ES 822

66' : 21207+4923
ES 820AB

67' : 21182+4956
HU 692

69' : 21320+5023
TDS1133

70' : 21203+4921
BU 839AB

72' : 21260+4905
ES 821

72' : 21295+5111
SKF 57

73' : 21304+4926
TDT3002

73' : 21173+5011
TDT2885

75' : 21183+4934
COU2654



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.

21248+5015 HJ 1645 (HD 204118)

 
 
21h 24m 50.26s +50° 15' 01.0" P.A. 36.00 sep 8.1 mag 8.86,9.90 Sp G0
 
 
Coord 2000 21248+5015 Discov num HJ 1645 Comp Coord arcsec 2000 21 24 50.26 +50 15 01.0
Date first 1828 Date last 2018 Obs 19
Pa first 38 Pa last 35.9 P.A. Now (θ) 35.9°
Sep first 7.0 Sep last 8.077 Sep. Now (ρ) 8.077"
Mag pri 8.86 Mag sec 9.90 delta mag (ΔM) 1.04 Spectral class G0 (yellow)
Pri motion ra +075 Sec motion ra +125
Pri motion dec +078 Sec motion dec +142
Notes
rPM=0.429
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 204118 Constellation Cygnus Tycho2 3598-01781-1 Gaia DR2 2171232381910308096
HD 204118
 
 
WDS 21248+5015 HJ 1645 (HD 204118) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HJ_1826 Mb - Herschel, J.F.W. 1826MmRAS...2..459H
HJ_1826 MemRAS 2, 459, 1826
HJ_1829a Mb - Herschel, J.F.W. 1829MmRAS...3...47H
HJ_1829a MemRAS 3, 47, 1829
HJ_1829b Mb - Herschel, J.F.W. 1829MmRAS...3..177H
HJ_1829b MemRAS 3, 177, 1829
HJ_1831 Ma - Herschel, J.F.W. 1831MmRAS...4..331H
HJ_1831 +Mb MemRAS 4, part 2, 331, 1831
HJ_1833a Ma - Herschel, J.F.W. 1833MmRAS...5...13H
HJ_1833a +Mb MemRAS 5, 13, 1833
HJ_1833b orb - Herschel, J.F.W. 1833MmRAS...5..171H
HJ_1833b MemRAS 5, 171, 1833
HJ_1833c Mb - Herschel, J.F.W. 1833MmRAS...6....1H
HJ_1833c MemRAS 6, 1, 1833
HJ_1833d orb - Herschel, J.F.W. 1833MmRAS...6..149H
HJ_1833d MemRAS 6, 149, 1833
HJ_1835 Ma - Herschel, J.F.W. 1835MmRAS...8...37H
HJ_1835 +Mb MemRAS 8, 37, 1835
HJ_1836 Mb - Herschel, J.F.W. 1836MmRAS...9..193H
HJ_1836 MemRAS 9, 193, 1836
HJ_1847a Ma j Herschel, J.F.W. .
HJ_1847a +Mb Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b Ma j Herschel, J.F.W. .
HJ_1847b Cape Results, London, 1847
HJ_1850 orb - Herschel, J.F.W. 1850MmRAS..18...47H
HJ_1850 MemRAS 18, 47, 1850
HJ_1870 Mb - Herschel, J.F.W. 1870MmRAS..38....1H
HJ_1870 MemRAS 38, 1, 1870
HJ_1874A - Herschel, J.F.W. 1874MNRAS..35...28B
HJ_1874A cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A Ma - Herschel, J.F.W. 1875AN.....85..323D
HJ_1875A +Mb cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A Ma - Herschel, J.F.W. 1880Obs.....3..508G
HJ_1880A +Mb cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B Mb - Herschel, J.F.W. 1880MNRAS..40..497B
HJ_1880B cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A Ma j Herschel, J.F.W. 1897MNRAS..57..541S
HJ_1897A cited by See (MNRAS 57, 541, 1897)
HJ_1905A Ma - Herschel, J.F.W. 1905LicOB...3..147A
HJ_1905A +Mb cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A Ma - Herschel, J.F.W. 1906MmRAS..56....1L
HJ_1906A +Mb cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B Ma - Herschel, J.F.W. 1906QB821.B972.....
HJ_1906B +Mb cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A Mb - Herschel, J.F.W. 1927sdsc.book......
HJ_1927A cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A Mb - Herschel, J.F.W. 1932QB821.A43......
HJ_1932A cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999 M j Herschel, J.F.W. ...................
HJ_9999 +Ma Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21248+5015 HJ 1645 2000 8 37 8.0 8.86 9.90 G0 D 212450.26+501501.0
21248+5015 HJ 1645 2011 10 36 8.1 8.86 9.90 G0 D 212450.26+501501.0
21248+5015 HJ 1645 2015 13 36 8.1 8.86 9.90 G0 212450.26+501501.0
21248+5015 HJ 1645 2018 14 37 8.1 8.86 9.90 G0 212450.26+501501.0

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

 
 
WDS 21248+5015 HJ 1645 (HD 204118) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21248+5015 HJ 1645 (HD 204118) : MEASURES
 
 
No records found.

 
 
WDS 21248+5015 (HD 204118) : VIRTUAL EYEPIECE
 
 

21248+5015 HJ 1645A mag 8.86 Sp G0 21248+5015 HJ 1645B sep 7.2 P.A. 24.80 mag 9.9 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 21248+5015 (HD 204118) : ALADIN DSS IMAGE @ 21h 24m 50.26s +50° 15' 01.0"
 
 
 
 
WDS 21248+5015 HJ 1645 (HD 204118) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21248+5015 HJ 1645 distance=0' 21246+5033 TDT2947 distance=19' 21235+5031 HLD 44 distance=21' 21260+4950 HDS3051 distance=28' 21212+5001 KPP4235AB distance=38' 21287+4952 STF2800 distance=44' 21296+5010 KPP 877 distance=46' 21279+4938 KPP2392 distance=48' 21238+4926 HJ 1643 distance=51' 21225+4929 HDS3043 distance=51' 21254+5108 SKF2530 distance=54' 21252+5110 CBL 92 distance=55' 21249+4919 ES 2710 distance=56' 21265+4917 ES 823 distance=61' 21311+5008 HU 593 distance=61' 21190+5039 ES 1004 distance=62' 21195+5048 ES 1005BC distance=62' 21195+5048 ES 1005AB distance=63' 21264+4911 ES 822 distance=66' 21207+4923 ES 820BC distance=66' 21207+4923 ES 820AB distance=66' 21182+4956 HU 692 distance=67' 21320+5023 TDS1133 distance=69' 21203+4921 BU 839AC distance=70' 21203+4921 BU 839AB distance=70' 21203+4921 BU 839CB distance=70' 21260+4905 ES 821 distance=72' 21295+5111 SKF 57 distance=72' 21304+4926 TDT3002 distance=73' 21173+5011 TDT2885 distance=73' 21183+4934 COU2654 distance=75' 21329+4959 CHR 102AB distance=80' 21329+4959 RBR 52AB,C distance=80' 21196+4913 YR 29 distance=80' 21331+5001 CLZ 81AB distance=81' 21331+5001 RAO 460AC distance=81' 21223+5132 CVR 241 distance=81' 21323+5054 TDT3019 distance=82' 21342+5026 CVR 250 distance=91' 21342+5029 ES 33 distance=91' 21339+5045 HDS3070 distance=92' 21297+5139 KPP 690BC distance=97' 21340+5100 COU2546 distance=99' 21271+5151 CVR 246 distance=99' 21352+5022 IPH 29 distance=100' 21306+4852 OSO 148AB distance=101' 21306+4852 OSO 148AC distance=101' 21306+4852 OSO 148AD distance=101' 21144+5015 SKF 393 distance=101' 21300+4848 SWN 2 distance=102' 21148+4946 COU2653 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 21248+5015 HJ 1645 36 8.1
Show 21246+5033 TDT2947 262 0.7 19
Show 21235+5031 HLD 44 258 2.1 21
Show 21260+4950 HDS3051 213 0.2 28
Show 21212+5001 KPP4235 AB 90 2.8 38
Show 21287+4952 STF2800 254 9.1 44
Show 21296+5010 KPP 877 16 7.4 46
Show 21279+4938 KPP2392 33 20.6 48
Show 21238+4926 HJ 1643 23 27.7 51
Show 21225+4929 HDS3043 113 0.2 51
Show 21254+5108 SKF2530 101 8.1 54
Show 21252+5110 CBL 92 342 9.1 55
Show 21249+4919 ES 2710 157 20.1 56
Show 21265+4917 ES 823 280 11.1 61
Show 21311+5008 HU 593 60 1.5 61
Show 21190+5039 ES 1004 221 7.6 62
Show 21195+5048 ES 1005 BC 126 2.3 62
Show 21195+5048 ES 1005 AB 145 11.5 63
Show 21264+4911 ES 822 24 1.4 66
Show 21207+4923 ES 820 BC 293 3.7 66
Show 21207+4923 ES 820 AB 60 35.5 66
Show 21182+4956 HU 692 259 0.4 67
Show 21320+5023 TDS1133 309 1.1 69
Show 21203+4921 BU 839 AC 200 22.5 70
Show 21203+4921 BU 839 AB 207 14.5 70
Show 21203+4921 BU 839 CB 7 8.1 70
Show 21260+4905 ES 821 276 7.0 72
Show 21295+5111 SKF 57 232 4.5 72
Show 21304+4926 TDT3002 311 1.7 73
Show 21173+5011 TDT2885 13 1.5 73
Show 21183+4934 COU2654 227 1.1 75
Show 21329+4959 CHR 102 AB 211 0.0 80
Show 21329+4959 RBR 52 AB,C 37 3.8 80
Show 21196+4913 YR 29 124 0.2 80
Show 21331+5001 CLZ 81 AB 324 68.6 81
Show 21331+5001 RAO 460 AC 331 1.2 81
Show 21223+5132 CVR 241 156 75.0 81
Show 21323+5054 TDT3019 82 0.7 82
Show 21342+5026 CVR 250 114 119.7 91
Show 21342+5029 ES 33 69 4.2 91
Show 21339+5045 HDS3070 347 5.4 92
Show 21297+5139 KPP 690 BC 117 6.2 97
Show 21340+5100 COU2546 178 0.8 99
Show 21271+5151 CVR 246 53 69.8 99
Show 21352+5022 IPH 29 260 15.8 100
Show 21306+4852 OSO 148 AB 170 16.1 101
Show 21306+4852 OSO 148 AC 119 23.8 101
Show 21306+4852 OSO 148 AD 346 18.6 101
Show 21144+5015 SKF 393 206 44.7 101
Show 21300+4848 SWN 2 352 3.1 102
Show 21148+4946 COU2653 66 0.3 102

 
 
WDS 21248+5015 : COMPONENTS
 
 
  A
B pa=24.8°
sep=7.21"
 
 
21248+5015 A
 
 
Componente originario normalizzato AB Name HD 204118 Coord arcsec 2000 212450.26+501501.0 Mag 8.86
Spectral class G0 (yellow) PmRA 75.00 PmDE 78.0 Tycho2 3598-01781-1
HD 204118
Tycho2
Tycho2 3598-01781-1 Pflag RAmdeg 321.20943869 DEmdeg 50.25029133
PmRA 77.8 PmDE 76.7 E RAmdeg 8 E DEmdeg 8
E pmRA 1.8 E pmDE 1.9 EpRAm 1991.51 EpDEm 1991.49
Num 3 Q RAmdeg 1.0 Q DEmdeg 2.6 Q pmRA 0.9
Q pmDE 2.6 BTmag 9.337 E BTmag 0.018 VTmag 8.864
E VTmag 0.014 Prox 999 TYC T HIP
CCDM RAdeg 321.20915861 DEdeg 50.25011444 EpRA 1990 1.72
EpDE 1990 1.70 E RAdeg 7.7 E DEdeg 8.2 Posflg
Corr 0.1
 
 
21248+5015 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 212450.58+501507.5 Mag 9.9 PmRA 125.00
PmDE 142.0 Calc delta mag 1.04 Calc coord yes