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Doubles in session


Current system
20270+1116
HJ 268


Nearby doubles
12' : 20263+1109
UC 4181

15' : 20264+1103
BPM2159AB

20' : 20260+1102
BPM2156AB

24' : 20285+1110
BPM2171

28' : 20288+1114
UC 4195

31' : 20250+1108
BPM2146

33' : 20266+1148
BPM2161

33' : 20249+1124
J 840

41' : 20242+1113
ENG 74AB

46' : 20239+1107
BPM2142

49' : 20301+1103
BPM2176

52' : 20236+1059
GWP2943

52' : 20293+1155
BPM2173AB

54' : 20303+1054
BU 63AB

57' : 20295+1033
J 3089

57' : 20260+1212
J 1704

59' : 20309+1126
LAU 4AB

59' : 20308+1059
BPM2179

60' : 20289+1022
J 3263

60' : 20293+1029
J 3088

60' : 20294+1029
DAM 214

63' : 20269+1013
TDT2282

64' : 20298+1154
J 1243

65' : 20270+1008
J 1343

66' : 20292+1019
J 3264

67' : 20250+1016
HJ 1509



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.

20270+1116 HJ 268

 
 
20h 26m 57.44s +11° 15' 45.2" P.A. 248.00 sep 20.5 mag 9.36,12.33 Sp K0
 
 
Coord 2000 20270+1116 Discov num HJ  268 Comp Coord arcsec 2000 20 26 57.44 +11 15 45.2
Date first 1825 Date last 2015 Obs 10
Pa first 240 Pa last 248.4 P.A. Now (θ) 248.4°
Sep first 15.0 Sep last 20.475 Sep. Now (ρ) 20.475"
Mag pri 9.36 Mag sec 12.33 delta mag (ΔM) 2.97 Spectral class K0 (yellow-orange)
Pri motion ra +025 Sec motion ra +001
Pri motion dec -010 Sec motion dec -007
Notes
rPM=0.898
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Tycho2 1095-01294-1 Gaia DR2 1754052342900099072
 
 
WDS 20270+1116 HJ 268 : 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
20270+1116 HJ 268 2006 4 248 20.3 9.36 11.40 K0 D 202657.44+111545.2
20270+1116 HJ 268 2010 6 248 20.3 9.36 12.33 K0 202657.44+111545.2
20270+1116 HJ 268 2015 7 248 20.5 9.36 12.33 K0 202657.44+111545.2

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

 
 
WDS 20270+1116 HJ 268 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20270+1116 HJ 268 : MEASURES
 
 
No records found.

 
 
WDS 20270+1116 : VIRTUAL EYEPIECE
 
 

20270+1116 HJ 268A mag 9.36 Sp K0 20270+1116 HJ 268B sep 20.1 P.A. 248.00 mag 12.33 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 20270+1116 : ALADIN DSS IMAGE @ 20h 26m 57.44s +11° 15' 45.2"
 
 
 
 
WDS 20270+1116 HJ 268 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20270+1116 HJ 268 distance=0' 20263+1109 UC 4181 distance=12' 20264+1103 BPM2159AB distance=15' 20264+1103 BPM2160AC distance=15' 20260+1102 BPM2157BC distance=19' 20260+1102 BPM2156AB distance=20' 20285+1110 BPM2171 distance=24' 20288+1114 UC 4195 distance=28' 20250+1108 BPM2146 distance=31' 20266+1148 BPM2161 distance=33' 20249+1124 J 840 distance=33' 20242+1113 ENG 74BC distance=40' 20242+1113 ENG 74AB distance=41' 20242+1113 ENG 74AC distance=41' 20239+1107 BPM2142 distance=46' 20301+1103 BPM2176 distance=49' 20236+1059 GWP2943 distance=52' 20293+1155 BPM2173AB distance=52' 20293+1155 BPM2173AC distance=52' 20303+1054 BU 63AB distance=54' 20303+1054 BU 297AC distance=54' 20295+1033 J 3089 distance=57' 20260+1212 J 1704 distance=57' 20309+1126 LAU 4AB distance=59' 20309+1126 STJ 5Aa,Ab distance=59' 20308+1059 BPM2179 distance=59' 20289+1022 J 3263 distance=60' 20293+1029 J 3088 distance=60' 20294+1029 DAM 214 distance=60' 20312+1116 CHR 99Aa,Ab distance=63' 20312+1116 STF2690A,BC distance=63' 20312+1116 HJ 269AD distance=63' 20312+1116 DA 1BC distance=63' 20269+1013 TDT2282 distance=63' 20298+1154 J 1243 distance=64' 20270+1008 J 1343 distance=65' 20292+1019 J 3264 distance=66' 20250+1016 HJ 1509 distance=67' 20244+1213 WOR 33Aa,Ab distance=68' 20244+1213 A 1209AB distance=68' 20279+1224 TDT2297 distance=70' 20317+1124 BPM2182 distance=70' 20297+1018 STF2686 distance=71' 20221+1117 BPM2131 distance=72' 20228+1156 BPM2135 distance=74' 20310+1200 DAM 673 distance=75' 20316+1150 J 3 distance=76' 20239+1217 GRV 337 distance=77' 20313+1201 BRT1345 distance=79' 20279+0958 AG 256AB distance=80' 20279+0958 AG 256AC distance=80' 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 20270+1116 HJ 268 248 20.5
Show 20263+1109 UC 4181 356 86.7 12
Show 20264+1103 BPM2159 AB 65 36.6 15
Show 20264+1103 BPM2160 AC 152 67.7 15
Show 20260+1102 BPM2157 BC 109 117.7 19
Show 20260+1102 BPM2156 AB 73 53.8 20
Show 20285+1110 BPM2171 30 40.3 24
Show 20288+1114 UC 4195 275 70.0 28
Show 20250+1108 BPM2146 49 87.4 31
Show 20266+1148 BPM2161 343 104.2 33
Show 20249+1124 J 840 52 3.7 33
Show 20242+1113 ENG 74 BC 112 102.0 40
Show 20242+1113 ENG 74 AB 73 67.8 41
Show 20242+1113 ENG 74 AC 97 160.4 41
Show 20239+1107 BPM2142 53 34.9 46
Show 20301+1103 BPM2176 280 53.7 49
Show 20236+1059 GWP2943 132 13.2 52
Show 20293+1155 BPM2173 AB 21 4.6 52
Show 20293+1155 BPM2173 AC 35 34.0 52
Show 20303+1054 BU 63 AB 347 0.9 54
Show 20303+1054 BU 297 AC 340 16.9 54
Show 20295+1033 J 3089 317 4.6 57
Show 20260+1212 J 1704 202 6.2 57
Show 20309+1126 LAU 4 AB 271 28.1 59
Show 20309+1126 STJ 5 Aa,Ab 140 0.9 59
Show 20308+1059 BPM2179 29 77.2 59
Show 20289+1022 J 3263 54 7.1 60
Show 20293+1029 J 3088 79 7.3 60
Show 20294+1029 DAM 214 298 5.3 60
Show 20312+1116 CHR 99 Aa,Ab 142 0.4 63
Show 20312+1116 STF2690 A,BC 255 17.8 63
Show 20312+1116 HJ 269 AD 108 23.0 63
Show 20312+1116 DA 1 BC 184 0.3 63
Show 20269+1013 TDT2282 258 3.1 63
Show 20298+1154 J 1243 121 3.2 64
Show 20270+1008 J 1343 53 2.3 65
Show 20292+1019 J 3264 358 5.9 66
Show 20250+1016 HJ 1509 180 19.2 67
Show 20244+1213 WOR 33 Aa,Ab 131 0.6 68
Show 20244+1213 A 1209 AB 324 1.9 68
Show 20279+1224 TDT2297 237 0.9 70
Show 20317+1124 BPM2182 228 99.8 70
Show 20297+1018 STF2686 278 25.8 71
Show 20221+1117 BPM2131 352 23.0 72
Show 20228+1156 BPM2135 218 90.0 74
Show 20310+1200 DAM 673 251 13.3 75
Show 20316+1150 J 3 130 2.1 76
Show 20239+1217 GRV 337 170 62.5 77
Show 20313+1201 BRT1345 197 4.9 79
Show 20279+0958 AG 256 AB 351 5.2 80
Show 20279+0958 AG 256 AC 225 99.2 80

 
 
WDS 20270+1116 : COMPONENTS
 
 
  A
B pa=248.0°
sep=20.13"
 
 
20270+1116 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 202657.44+111545.2 Mag 9.36 Spectral class K0 (yellow-orange)
PmRA 25.00 PmDE -10.0 Tycho2 1095-01294-1
Tycho2
Tycho2 1095-01294-1 Pflag RAmdeg 306.73936259 DEmdeg 11.26257131
PmRA 25.5 PmDE -12.1 E RAmdeg 14 E DEmdeg 15
E pmRA 1.2 E pmDE 1.1 EpRAm 1988.77 EpDEm 1988.07
Num 9 Q RAmdeg 1.1 Q DEmdeg 0.5 Q pmRA 1.1
Q pmDE 0.5 BTmag 10.651 E BTmag 0.039 VTmag 9.356
E VTmag 0.020 Prox 999 TYC T HIP
CCDM RAdeg 306.73930139 DEdeg 11.26260000 EpRA 1990 1.64
EpDE 1990 1.48 E RAdeg 15.0 E DEdeg 16.1 Posflg
Corr -0.2
CCDM
Ccdm 20270+1116 RComp Comp A Note1
Note2 Discov num DRAs -2.64 DDEs -14.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 10.0 Sp PmNote *
PmRA 19 PmDE -15 Dm number +10 4287 Cat1 BD
Name2 +11 2490 Cat2 AGK2/3 HD M HD
ADS BDS B10217 M ADS BDS N IDS IDS 20222N1055A
HIC
 
 
20270+1116 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202656.17+111537.7 Mag 12.33 PmRA 1.00
PmDE -7.0 Calc delta mag 2.97 Calc coord yes
CCDM
Ccdm 20270+1116 RComp Comp B Note1
Note2 Discov num HJ 268 DRAs DDEs
R dRAs Year 1820 Theta 240 Rho 15.0
Obs 1 Vmag 12.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B10217 M ADS BDS N IDS IDS 20222N1055B
HIC