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Doubles in session


Current system
21181+0942
HJ 3020


Nearby doubles
8' : 21180+0934
HJ 3021

12' : 21179+0952
HJ 3019

25' : 21197+0931
STF2786

25' : 21165+0936
BRT3228

30' : 21201+0947
UC 4444AB

30' : 21165+0924
LAF 64AB

45' : 21187+0857
LDS4877

45' : 21181+1027
UC 4435

48' : 21181+0854
UC 4436

51' : 21202+1018
HJ 933

58' : 21145+1000
STT 535AB

59' : 21161+0851
CVR 891

62' : 21214+1020
A 617

63' : 21147+0907
CVR 890

65' : 21224+0953
J 1356

78' : 21226+0900
CVR 895

85' : 21152+0829
SKF1869

86' : 21178+0817
KPP 490

86' : 21137+0846
UC 4412AB

88' : 21131+1028
BU 1501

91' : 21138+1045
HJ 278

91' : 21221+0832
UC 4460

91' : 21198+1108
GRV 446

95' : 21236+1030
BRT1356

98' : 21245+1003
SKF 16

99' : 21225+0827
HU 275



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.

21181+0942 HJ 3020

 
 
21h 18m 08.16s +09° 41' 38.0" P.A. 295.00 sep 25.8 mag 11.28,11.39
 
 
Coord 2000 21181+0942 Discov num HJ 3020 Comp Coord arcsec 2000 21 18 08.16 +09 41 38.0
Date first 1830 Date last 2015 Obs 15
Pa first 296 Pa last 295 P.A. Now (θ) 295°
Sep first 18.0 Sep last 25.792 Sep. Now (ρ) 25.792"
Mag pri 11.28 Mag sec 11.39 delta mag (ΔM) 0.11 Spectral class
Pri motion ra +023 Sec motion ra +028
Pri motion dec +015 Sec motion dec +016
Notes
rPM=0.158 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Equuleus Tycho2 1109-00077-1 Gaia DR2 1743695050741838208
 
 
WDS 21181+0942 HJ 3020 : 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
21181+0942 HJ 3020 2000 8 295 25.9 11.28 11.39 D 211808.16+094138.0
21181+0942 HJ 3020 2009 9 295 25.8 11.28 11.39 D 211808.16+094138.0
21181+0942 HJ 3020 2010 11 295 25.8 11.28 11.39 211808.16+094138.0
21181+0942 HJ 3020 2015 12 295 25.8 11.28 11.39 211808.16+094138.0

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

 
 
WDS 21181+0942 HJ 3020 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21181+0942 HJ 3020 : MEASURES
 
 
No records found.

 
 
WDS 21181+0942 : VIRTUAL EYEPIECE
 
 

21181+0942 HJ 3020A mag 11.28 21181+0942 HJ 3020B sep 25.5 P.A. 295.30 mag 11.39 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 21181+0942 : ALADIN DSS IMAGE @ 21h 18m 08.16s +09° 41' 38.0"
 
 
 
 
WDS 21181+0942 HJ 3020 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21181+0942 HJ 3020 distance=0' 21180+0934 HJ 3021 distance=8' 21179+0952 HJ 3019 distance=12' 21197+0931 STF2786 distance=25' 21165+0936 BRT3228 distance=25' 21201+0947 UC 4444AB distance=30' 21165+0924 LAF 64AB distance=30' 21165+0924 LAF 64AC distance=30' 21187+0857 LDS4877 distance=45' 21181+1027 UC 4435 distance=45' 21181+0854 UC 4436 distance=48' 21202+1018 HJ 933 distance=51' 21145+1000 STT 535AB distance=58' 21145+1000 STF2777AB,C distance=58' 21161+0851 CVR 891 distance=59' 21214+1020 A 617 distance=62' 21147+0907 CVR 890 distance=63' 21224+0953 J 1356 distance=65' 21226+0900 CVR 895 distance=78' 21152+0829 SKF1869 distance=85' 21178+0817 KPP 490 distance=86' 21137+0846 UC 4412AB distance=86' 21137+0846 RAO 449Aa,Ab distance=86' 21131+1028 BU 1501 distance=88' 21138+1045 HJ 278 distance=91' 21221+0832 UC 4460 distance=91' 21198+1108 GRV 446 distance=91' 21236+1030 BRT1356 distance=95' 21245+1003 SKF 16 distance=98' 21225+0827 HU 275 distance=99' 21225+1057 J 161 distance=100' 21227+1101 BPM2367 distance=104' 21140+1106 AG 415AB distance=105' 21140+1106 TOB 316BC distance=105' 21251+0923 BU 164AB distance=105' 21251+0923 STF2793AB,C distance=105' 21121+1038 ENG 81AB distance=106' 21110+0933 STF2765AB distance=107' 21110+0933 STF2765AC distance=107' 21121+1038 BUP 226BC distance=108' 21164+1128 CVR 892 distance=109' 21224+1110 NSN 743 distance=110' 21223+1111 BRT1355 distance=110' 21144+0807 TDT2847 distance=110' 21222+1114 J 2605 distance=112' 21215+1122 BPM2363 distance=112' 21186+1134 BU 163AB distance=113' 21186+1134 BU 163AC distance=113' 21186+1134 BU 163AD distance=113' 21186+1134 BU 163AE distance=113' 21137+1115 BPM2345 distance=115' 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 21181+0942 HJ 3020 295 25.8
Show 21180+0934 HJ 3021 237 23.8 8
Show 21179+0952 HJ 3019 309 15.0 12
Show 21197+0931 STF2786 188 2.8 25
Show 21165+0936 BRT3228 259 6.2 25
Show 21201+0947 UC 4444 AB 170 74.7 30
Show 21165+0924 LAF 64 AB 29 5.5 30
Show 21165+0924 LAF 64 AC 168 12.4 30
Show 21187+0857 LDS4877 123 89.5 45
Show 21181+1027 UC 4435 259 50.5 45
Show 21181+0854 UC 4436 34 37.6 48
Show 21202+1018 HJ 933 239 17.0 51
Show 21145+1000 STT 535 AB 7 0.1 58
Show 21145+1000 STF2777 AB,C 6 76.5 58
Show 21161+0851 CVR 891 33 8.6 59
Show 21214+1020 A 617 45 0.0 62
Show 21147+0907 CVR 890 3 29.1 63
Show 21224+0953 J 1356 176 8.0 65
Show 21226+0900 CVR 895 47 17.8 78
Show 21152+0829 SKF1869 302 67.9 85
Show 21178+0817 KPP 490 319 5.0 86
Show 21137+0846 UC 4412 AB 201 8.6 86
Show 21137+0846 RAO 449 Aa,Ab 322 0.4 86
Show 21131+1028 BU 1501 210 1.0 88
Show 21138+1045 HJ 278 263 22.9 91
Show 21221+0832 UC 4460 236 22.0 91
Show 21198+1108 GRV 446 157 60.2 91
Show 21236+1030 BRT1356 63 5.7 95
Show 21245+1003 SKF 16 60 53.2 98
Show 21225+0827 HU 275 56 0.4 99
Show 21225+1057 J 161 300 2.0 100
Show 21227+1101 BPM2367 336 97.0 104
Show 21140+1106 AG 415 AB 23 15.9 105
Show 21140+1106 TOB 316 BC 87 21.1 105
Show 21251+0923 BU 164 AB 93 0.1 105
Show 21251+0923 STF2793 AB,C 241 26.4 105
Show 21121+1038 ENG 81 AB 353 184.7 106
Show 21110+0933 STF2765 AB 82 2.9 107
Show 21110+0933 STF2765 AC 167 44.2 107
Show 21121+1038 BUP 226 BC 30 24.7 108
Show 21164+1128 CVR 892 185 7.0 109
Show 21224+1110 NSN 743 262 2.3 110
Show 21223+1111 BRT1355 192 4.1 110
Show 21144+0807 TDT2847 255 1.9 110
Show 21222+1114 J 2605 223 1.5 112
Show 21215+1122 BPM2363 196 52.2 112
Show 21186+1134 BU 163 AB 257 1.0 113
Show 21186+1134 BU 163 AC 252 29.7 113
Show 21186+1134 BU 163 AD 163 44.8 113
Show 21186+1134 BU 163 AE 6 87.5 113
Show 21137+1115 BPM2345 10 52.4 115

 
 
WDS 21181+0942 : COMPONENTS
 
 
  A
B pa=295.3°
sep=25.49"
 
 
21181+0942 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 211808.16+094138.0 Mag 11.28 PmRA 23.00
PmDE 15.0 Tycho2 1109-00077-1
Tycho2
Tycho2 1109-00077-1 Pflag RAmdeg 319.53400780 DEmdeg 9.69388036
PmRA 20.4 PmDE 14.8 E RAmdeg 53 E DEmdeg 66
E pmRA 2.5 E pmDE 2.4 EpRAm 1985.82 EpDEm 1981.28
Num 3 Q RAmdeg 1.0 Q DEmdeg 0.3 Q pmRA 1.0
Q pmDE 0.3 BTmag 11.846 E BTmag 0.097 VTmag 11.277
E VTmag 0.099 Prox 258 TYC T HIP
CCDM RAdeg 319.53395861 DEdeg 9.69384472 EpRA 1990 1.52
EpDE 1990 1.25 E RAdeg 54.8 E DEdeg 70.2 Posflg
Corr -0.3
CCDM
Ccdm 21181+0942 RComp Comp A Note1
Note2 Discov num DRAs 0.57 DDEs -10.8
R dRAs 65 Year Theta Rho
Obs 2 Vmag 11.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B10872 M ADS BDS N IDS IDS 21132N0917A
HIC
 
 
21181+0942 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 211806.60+094148.9 Mag 11.39 PmRA 28.00
PmDE 16.0 Tycho2 1109-00932-1 Calc delta mag 0.11 Calc coord yes
Tycho2
Tycho2 1109-00932-1 Pflag RAmdeg 319.52742675 DEmdeg 9.69689742
PmRA 26.8 PmDE 13.7 E RAmdeg 53 E DEmdeg 66
E pmRA 2.5 E pmDE 2.4 EpRAm 1985.85 EpDEm 1981.03
Num 3 Q RAmdeg 0.1 Q DEmdeg 0.1 Q pmRA 0.1
Q pmDE 0.1 BTmag 11.816 E BTmag 0.090 VTmag 11.390
E VTmag 0.106 Prox 258 TYC HIP
CCDM RAdeg 319.52736278 DEdeg 9.69686417 EpRA 1990 1.55
EpDE 1990 1.25 E RAdeg 54.7 E DEdeg 71.2 Posflg
Corr -0.3
CCDM
Ccdm 21181+0942 RComp Comp B Note1
Note2 Discov num HJ 3020 DRAs 2.14 DDEs -22.7
R dRAs 65 Year 1897 Theta 115 Rho 26.3
Obs 4 Vmag 11.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B10872 M ADS BDS N IDS IDS 21132N0917B
HIC