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Current system
21504+1218
HJ 286


Nearby doubles
11' : 21497+1216
J 2358

14' : 21513+1220
SHN 254

26' : 21509+1243
FMR 165

27' : 21500+1246
SHN 42

32' : 21516+1244
SHN 255

32' : 21524+1226
UC 4585AB

48' : 21480+1146
A 1224

49' : 21490+1304
CBL 535

55' : 21538+1158
DEA 90

56' : 21479+1136
BPM2408

71' : 21459+1153
A 1223AB

75' : 21476+1116
BPM2407

75' : 21452+1221
WAA9004

79' : 21454+1149
WAA9005

81' : 21518+1336
CRC 40AB

85' : 21555+1258
GRV1235

89' : 21514+1052
LDS4917

90' : 21454+1312
UC 4551

93' : 21539+1102
GWP3105

94' : 21551+1320
GRV 520

94' : 21543+1333
BU 1213AB

103' : 21475+1352
BPM2406

103' : 21541+1346
BPM2411

104' : 21498+1402
LEP 102

109' : 21576+1157
STTA227

112' : 21579+1231
SLW1257



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.

21504+1218 HJ 286

 
 
21h 50m 20.89s +12° 18' 50.7" P.A. 261.00 sep 21.6 mag 10.27,13.09
 
 
Coord 2000 21504+1218 Discov num HJ  286 Comp Coord arcsec 2000 21 50 20.89 +12 18 50.7
Date first 1825 Date last 2015 Obs 12
Pa first 265 Pa last 260.6 P.A. Now (θ) 260.6°
Sep first 12.0 Sep last 21.584 Sep. Now (ρ) 21.584"
Mag pri 10.27 Mag sec 13.09 delta mag (ΔM) 2.82 Spectral class
Pri motion ra +003 Sec motion ra -007
Pri motion dec -004 Sec motion dec -012
Notes
rPM=0.922
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Pegasus Tycho2 1130-00561-1 Gaia DR2 1766416832190791936
 
 
WDS 21504+1218 HJ 286 : 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
21504+1218 HJ 286 1997 4 261 21.5 10.27 12.30 D 215020.89+121850.7
21504+1218 HJ 286 1999 5 261 21.5 10.27 12.30 D 215020.89+121850.7
21504+1218 HJ 286 2001 7 261 21.5 10.27 12.30 D 215020.89+121850.7
21504+1218 HJ 286 2010 8 261 21.6 10.27 13.09 215020.89+121850.7
21504+1218 HJ 286 2015 9 261 21.6 10.27 13.09 215020.89+121850.7

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

 
 
WDS 21504+1218 HJ 286 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21504+1218 HJ 286 : MEASURES
 
 
No records found.

 
 
WDS 21504+1218 : VIRTUAL EYEPIECE
 
 

21504+1218 HJ 286A mag 10.27 21504+1218 HJ 286B sep 21.1 P.A. 260.40 mag 13.09 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 21504+1218 : ALADIN DSS IMAGE @ 21h 50m 20.89s +12° 18' 50.7"
 
 
 
 
WDS 21504+1218 HJ 286 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21504+1218 HJ 286 distance=0' 21497+1216 J 2358 distance=11' 21513+1220 SHN 254 distance=14' 21509+1243 FMR 165 distance=26' 21500+1246 SHN 42 distance=27' 21516+1244 SHN 255 distance=32' 21524+1226 UC 4585BC distance=32' 21524+1226 UC 4585AB distance=32' 21480+1146 A 1224 distance=48' 21490+1304 CBL 535 distance=49' 21538+1158 DEA 90 distance=55' 21479+1136 BPM2408 distance=56' 21459+1153 A 1223AB distance=71' 21459+1153 A 1223AB,C distance=71' 21476+1116 BPM2407 distance=75' 21452+1221 WAA9004 distance=75' 21454+1149 WAA9005 distance=79' 21518+1336 CRC 40Aa,Ab distance=81' 21518+1336 CRC 40AB distance=81' 21555+1258 GRV1235 distance=85' 21514+1052 LDS4917 distance=89' 21454+1312 UC 4551 distance=90' 21539+1102 GWP3105 distance=93' 21551+1320 GRV 520 distance=94' 21543+1333 BU 1213BC distance=94' 21543+1333 BU 1213AB distance=94' 21475+1352 BPM2406 distance=103' 21541+1346 BPM2411 distance=103' 21498+1402 LEP 102 distance=104' 21460+1053 BU 1305BC distance=107' 21460+1053 BU 1305AD distance=108' 21460+1053 BU 1305AE distance=108' 21460+1053 BU 1305AF distance=108' 21460+1053 BU 1305AG distance=108' 21460+1053 BU 1305A,BC distance=108' 21576+1157 STTA227 distance=109' 21579+1231 SLW1257 distance=112' 21555+1053 BU 75AB distance=115' 21555+1053 BU 75AB,C distance=115' 21425+1233 JNN 134 distance=117' 21511+1022 COU2549AB distance=118' 21511+1022 HEI 599AC distance=118' 21523+1024 TDT3207 distance=119' 21567+1335 BPM2415 distance=121' 21468+1030 J 201 distance=123' 21590+1212 HEI 410 distance=127' 21449+1040 HJ 285 distance=127' 21418+1151 BPM2402 distance=129' 21431+1338 HJ 1682 distance=133' 21423+1116 SLW1250 distance=134' 21414+1245 BPM2401 distance=134' 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 21504+1218 HJ 286 261 21.6
Show 21497+1216 J 2358 339 4.2 11
Show 21513+1220 SHN 254 -1 0.3 14
Show 21509+1243 FMR 165 305 39.5 26
Show 21500+1246 SHN 42 339 0.6 27
Show 21516+1244 SHN 255 96 2.2 32
Show 21524+1226 UC 4585 BC 280 54.7 32
Show 21524+1226 UC 4585 AB 318 27.7 32
Show 21480+1146 A 1224 353 3.1 48
Show 21490+1304 CBL 535 237 20.8 49
Show 21538+1158 DEA 90 17 11.2 55
Show 21479+1136 BPM2408 52 87.5 56
Show 21459+1153 A 1223 AB 331 0.1 71
Show 21459+1153 A 1223 AB,C 40 13.5 71
Show 21476+1116 BPM2407 143 39.7 75
Show 21452+1221 WAA9004 315 2.0 75
Show 21454+1149 WAA9005 184 1.3 79
Show 21518+1336 CRC 40 Aa,Ab 138 0.7 81
Show 21518+1336 CRC 40 AB 122 10.9 81
Show 21555+1258 GRV1235 353 14.7 85
Show 21514+1052 LDS4917 93 41.2 89
Show 21454+1312 UC 4551 143 23.3 90
Show 21539+1102 GWP3105 113 4.3 93
Show 21551+1320 GRV 520 136 23.3 94
Show 21543+1333 BU 1213 BC 310 1.0 94
Show 21543+1333 BU 1213 AB 259 64.3 94
Show 21475+1352 BPM2406 157 18.7 103
Show 21541+1346 BPM2411 185 100.4 103
Show 21498+1402 LEP 102 338 13.3 104
Show 21460+1053 BU 1305 BC 52 1.3 107
Show 21460+1053 BU 1305 AD 47 49.2 108
Show 21460+1053 BU 1305 AE 66 81.8 108
Show 21460+1053 BU 1305 AF 235 42.8 108
Show 21460+1053 BU 1305 AG 297 98.7 108
Show 21460+1053 BU 1305 A,BC 90 89.2 108
Show 21576+1157 STTA227 32 78.6 109
Show 21579+1231 SLW1257 237 138.3 112
Show 21555+1053 BU 75 AB 26 1.1 115
Show 21555+1053 BU 75 AB,C 211 35.3 115
Show 21425+1233 JNN 134 9 4.8 117
Show 21511+1022 COU2549 AB 86 0.1 118
Show 21511+1022 HEI 599 AC 82 0.2 118
Show 21523+1024 TDT3207 315 1.7 119
Show 21567+1335 BPM2415 252 104.7 121
Show 21468+1030 J 201 224 2.7 123
Show 21590+1212 HEI 410 154 0.2 127
Show 21449+1040 HJ 285 55 8.0 127
Show 21418+1151 BPM2402 17.8 129
Show 21431+1338 HJ 1682 77 21.4 133
Show 21423+1116 SLW1250 10 30.0 134
Show 21414+1245 BPM2401 90 69.5 134

 
 
WDS 21504+1218 : COMPONENTS
 
 
  A
B pa=260.4°
sep=21.10"
 
 
21504+1218 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 215020.89+121850.7 Mag 10.27 PmRA 3.00
PmDE -4.0 Tycho2 1130-00561-1
Tycho2
Tycho2 1130-00561-1 Pflag RAmdeg 327.58702606 DEmdeg 12.31411000
PmRA 3.4 PmDE -5.1 E RAmdeg 24 E DEmdeg 28
E pmRA 1.5 E pmDE 1.4 EpRAm 1985.41 EpDEm 1983.66
Num 5 Q RAmdeg 0.5 Q DEmdeg 0.8 Q pmRA 0.5
Q pmDE 0.7 BTmag 10.801 E BTmag 0.054 VTmag 10.273
E VTmag 0.048 Prox 999 TYC T HIP
CCDM RAdeg 327.58701833 DEdeg 12.31412389 EpRA 1990 1.63
EpDE 1990 1.45 E RAdeg 29.0 E DEdeg 34.3 Posflg
Corr -0.1
 
 
21504+1218 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 215019.47+121847.2 Mag 13.09 PmRA -7.00
PmDE -12.0 Calc delta mag 2.82 Calc coord yes