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Current system
20419+0258
HJ 2988


Nearby doubles
10' : 20424+0304
KPP3360

16' : 20414+0244
GWP2984

19' : 20431+0253
AG 262

38' : 20403+0326
STT 409AB

40' : 20419+0218
UC 252

42' : 20427+0217
GRV 370

43' : 20412+0338
BAL2543

43' : 20413+0216
BAL1569

44' : 20391+0312
BAL2032

56' : 20393+0219
BAL1567

58' : 20403+0349
J 156

58' : 20434+0204
GWP2989

62' : 20418+0156
GWP2986

67' : 20379+0325
BAL2540

71' : 20414+0147
BAL1570

73' : 20388+0202
HJ 920

74' : 20452+0352
UC 4280

76' : 20459+0211
GRV 377

77' : 20460+0344
BAL2544

78' : 20471+0253
TDT2536

78' : 20373+0332
BAL2539

79' : 20455+0201
BAL1571

79' : 20376+0211
GRV 364

81' : 20472+0247
UC 4286

82' : 20387+0156
J 569

84' : 20466+0344
BAL2545



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.

20419+0258 HJ 2988

 
 
20h 41m 55.67s +02° 57' 37.1" P.A. 142.00 sep 23.2 mag 9.25,10.40 Sp K5
 
 
Coord 2000 20419+0258 Discov num HJ 2988 Comp Coord arcsec 2000 20 41 55.67 +02 57 37.1
Date first 1830 Date last 2015 Obs 11
Pa first 140 Pa last 142.2 P.A. Now (θ) 142.2°
Sep first 20.0 Sep last 23.167 Sep. Now (ρ) 23.167"
Mag pri 9.25 Mag sec 10.40 delta mag (ΔM) 1.15 Spectral class K5 (yellow-orange)
Pri motion ra +015 Sec motion ra +002
Pri motion dec -004 Sec motion dec -001
Notes
rPM=0.859
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Tycho2 0515-00405-1 Gaia DR2 4232201713384565760
 
 
WDS 20419+0258 HJ 2988 : 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
20419+0258 HJ 2988 2000 4 142 23.3 9.25 10.40 K5 D 204155.67+025737.1
20419+0258 HJ 2988 2011 5 142 23.3 9.25 10.40 K5 D 204155.67+025737.1
20419+0258 HJ 2988 2012 7 142 23.2 9.25 10.40 K5 D 204155.67+025737.1
20419+0258 HJ 2988 2015 9 142 23.2 9.25 10.40 K5 204155.67+025737.1

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

 
 
WDS 20419+0258 HJ 2988 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20419+0258 HJ 2988 : MEASURES
 
 
No records found.

 
 
WDS 20419+0258 : VIRTUAL EYEPIECE
 
 

20419+0258 HJ 2988A mag 9.25 Sp K5 20419+0258 HJ 2988B sep 23.2 P.A. 142.20 mag 10.4 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 20419+0258 : ALADIN DSS IMAGE @ 20h 41m 55.67s +02° 57' 37.1"
 
 
 
 
WDS 20419+0258 HJ 2988 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20419+0258 HJ 2988 distance=0' 20424+0304 KPP3360 distance=10' 20414+0244 GWP2984 distance=16' 20431+0253 AG 262 distance=19' 20403+0326 STT 409AB distance=38' 20403+0326 STT 409AC distance=38' 20419+0218 UC 252 distance=40' 20427+0217 GRV 370 distance=42' 20412+0338 BAL2543 distance=43' 20413+0216 BAL1569 distance=43' 20391+0312 BAL2032 distance=44' 20393+0219 BAL1567 distance=56' 20403+0349 J 156 distance=58' 20434+0204 GWP2989 distance=58' 20418+0156 GWP2986 distance=62' 20379+0325 BAL2540 distance=67' 20414+0147 BAL1570 distance=71' 20388+0202 HJ 920 distance=73' 20452+0352 UC 4280 distance=74' 20459+0211 GRV 377 distance=76' 20460+0344 BAL2544 distance=77' 20471+0253 TDT2536 distance=78' 20373+0332 BAL2539 distance=78' 20455+0201 BAL1571 distance=79' 20376+0211 GRV 364 distance=79' 20472+0247 UC 4286 distance=81' 20387+0156 J 569 distance=82' 20466+0344 BAL2545 distance=84' 20383+0408 BAL2541 distance=90' 20409+0128 BAL1568 distance=91' 20377+0152 J 3255 distance=93' 20481+0224 BAL2035 distance=100' 20389+0128 KPP3420 distance=101' 20353+0239 HJ 2981 distance=101' 20400+0118 A 2283AB distance=104' 20457+0430 A 2285AB distance=109' 20457+0430 A 2285AC distance=109' 20373+0134 GWP2973 distance=110' 20351+0218 UC 4224 distance=110' 20372+0135 J 2574 distance=110' 20347+0321 CRC 38 distance=111' 20360+0411 J 2192 distance=113' 20393+0112 BAL1217 distance=113' 20414+0105 GWP2985 distance=113' 20367+0132 GRV 361 distance=116' 20351+0202 BAL1564 distance=116' 20341+0256 BAL2031 distance=117' 20366+0123 HJ 5513AB distance=119' 20366+0123 HJ 5513AC distance=119' 20366+0123 HJ 5513AD distance=119' 20425+0100 TDT2487 distance=119' 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 20419+0258 HJ 2988 142 23.2
Show 20424+0304 KPP3360 234 1.5 10
Show 20414+0244 GWP2984 263 182.0 16
Show 20431+0253 AG 262 94 5.7 19
Show 20403+0326 STT 409 AB 84 16.8 38
Show 20403+0326 STT 409 AC 330 62.8 38
Show 20419+0218 UC 252 164 62.6 40
Show 20427+0217 GRV 370 313 25.4 42
Show 20412+0338 BAL2543 33 6.5 43
Show 20413+0216 BAL1569 62 11.2 43
Show 20391+0312 BAL2032 33 16.3 44
Show 20393+0219 BAL1567 205 19.3 56
Show 20403+0349 J 156 21 2.3 58
Show 20434+0204 GWP2989 131 44.7 58
Show 20418+0156 GWP2986 350 16.1 62
Show 20379+0325 BAL2540 94 16.1 67
Show 20414+0147 BAL1570 12 5.1 71
Show 20388+0202 HJ 920 213 14.1 73
Show 20452+0352 UC 4280 255 36.1 74
Show 20459+0211 GRV 377 354 27.3 76
Show 20460+0344 BAL2544 14 16.7 77
Show 20471+0253 TDT2536 352 1.6 78
Show 20373+0332 BAL2539 77 130.2 78
Show 20455+0201 BAL1571 307 6.8 79
Show 20376+0211 GRV 364 156 40.3 79
Show 20472+0247 UC 4286 114 31.3 81
Show 20387+0156 J 569 316 3.0 82
Show 20466+0344 BAL2545 281 11.8 84
Show 20383+0408 BAL2541 78 15.1 90
Show 20409+0128 BAL1568 346 8.8 91
Show 20377+0152 J 3255 327 3.7 93
Show 20481+0224 BAL2035 304 12.9 100
Show 20389+0128 KPP3420 241 6.3 101
Show 20353+0239 HJ 2981 5 12.9 101
Show 20400+0118 A 2283 AB 350 2.3 104
Show 20457+0430 A 2285 AB 222 7.7 109
Show 20457+0430 A 2285 AC 116 33.4 109
Show 20373+0134 GWP2973 106 21.3 110
Show 20351+0218 UC 4224 220 16.1 110
Show 20372+0135 J 2574 158 5.0 110
Show 20347+0321 CRC 38 300 10.5 111
Show 20360+0411 J 2192 18 4.8 113
Show 20393+0112 BAL1217 2 7.9 113
Show 20414+0105 GWP2985 352 30.4 113
Show 20367+0132 GRV 361 103 28.0 116
Show 20351+0202 BAL1564 268 4.8 116
Show 20341+0256 BAL2031 334 17.4 117
Show 20366+0123 HJ 5513 AB 93 11.9 119
Show 20366+0123 HJ 5513 AC 284 28.7 119
Show 20366+0123 HJ 5513 AD 89 42.5 119
Show 20425+0100 TDT2487 302 1.1 119

 
 
WDS 20419+0258 : COMPONENTS
 
 
  A
B pa=142.2°
sep=23.16"
 
 
20419+0258 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204155.67+025737.1 Mag 9.25 Spectral class K5 (yellow-orange)
PmRA 15.00 PmDE -4.0 Tycho2 0515-00405-1
Tycho2
Tycho2 0515-00405-1 Pflag RAmdeg 310.48196159 DEmdeg 2.96031081
PmRA 15.7 PmDE -4.1 E RAmdeg 16 E DEmdeg 19
E pmRA 1.3 E pmDE 1.3 EpRAm 1988.87 EpDEm 1986.29
Num 8 Q RAmdeg 0.9 Q DEmdeg 0.8 Q pmRA 0.9
Q pmDE 0.8 BTmag 11.220 E BTmag 0.073 VTmag 9.246
E VTmag 0.023 Prox 999 TYC T HIP
CCDM RAdeg 310.48192556 DEdeg 2.96032056 EpRA 1990 1.74
EpDE 1990 1.33 E RAdeg 17.0 E DEdeg 21.7 Posflg
Corr -0.2
CCDM
Ccdm 20419+0258 RComp Comp A Note1
Note2 Discov num DRAs 1.65 DDEs -23.2
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.5 Sp K5 PmNote *
PmRA 12 PmDE -10 Dm number +02 4227 Cat1 BD
Name2 +02 2627 Cat2 AGK2/3 HD M HD
ADS BDS B10435 M ADS BDS N IDS IDS 20369N0236A
HIC
 
 
20419+0258 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204156.62+025718.8 Mag 10.4 PmRA 2.00
PmDE -1.0 Calc delta mag 1.15 Calc coord yes
CCDM
Ccdm 20419+0258 RComp Comp B Note1
Note2 Discov num HJ 2988 DRAs DDEs
R dRAs Year 1901 Theta 139 Rho 24.6
Obs 1 Vmag 10.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B10435 M ADS BDS N IDS IDS 20369N0236B
HIC