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Doubles in session


Current system
18494+6234
HJ 2846


Nearby doubles
20' : 18517+6222
ES 1841

25' : 18473+6254
ES 127

26' : 18472+6215
LDS2749

30' : 18524+6256
LDS2753

33' : 18448+6241
CFN 16

46' : 18533+6312
TDT1113

47' : 18518+6318
UC 3699

48' : 18558+6253
TDT1131

48' : 18439+6303
KPP4117

56' : 18573+6224
STF2440AB

59' : 18411+6226
LDS2746

62' : 18576+6210
TDT1147

65' : 18550+6143
ES 2669

67' : 18413+6311
ES 1839

70' : 18580+6159
ES 1843

72' : 18565+6144
ES 1842

75' : 18596+6301
HU 939

77' : 18461+6121
MLR 7

80' : 18462+6351
STI 861

82' : 18402+6326
MLR 44

83' : 18480+6113
LDS2750

89' : 18367+6222
TDT 956

90' : 19017+6308
LDS2426

92' : 19018+6204
UC 3767

94' : 18456+6404
ES 1840

95' : 18384+6332
STF2377AB



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.

18494+6234 HJ 2846

 
 
18h 49m 25.09s +62° 34' 17.9" P.A. 239.00 sep 14.6 mag 10.54,12.51
 
 
Coord 2000 18494+6234 Discov num HJ 2846 Comp Coord arcsec 2000 18 49 25.09 +62 34 17.9
Date first 1831 Date last 2015 Obs 12
Pa first 254 Pa last 239.1 P.A. Now (θ) 239.1°
Sep first 12.0 Sep last 14.629 Sep. Now (ρ) 14.629"
Mag pri 10.54 Mag sec 12.51 delta mag (ΔM) 1.97 Spectral class
Pri motion ra +004 Sec motion ra +002
Pri motion dec +001 Sec motion dec -010
Notes
rPM=1.096
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco Tycho2 4219-00588-1 Gaia DR2 2156940788029457664
 
 
WDS 18494+6234 HJ 2846 : 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
18494+6234 HJ 2846 1999 6 240 14.6 10.54 12.51 D 184925.09+623417.9
18494+6234 HJ 2846 2003 7 239 14.6 10.54 12.51 D 184925.09+623417.9
18494+6234 HJ 2846 2010 8 239 14.2 10.54 12.51 184925.09+623417.9
18494+6234 HJ 2846 2015 12 239 14.6 10.54 12.51 184925.09+623417.9

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

 
 
WDS 18494+6234 HJ 2846 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18494+6234 HJ 2846 : MEASURES
 
 
No records found.

 
 
WDS 18494+6234 : VIRTUAL EYEPIECE
 
 

18494+6234 HJ 2846A mag 10.54 18494+6234 HJ 2846B sep 9.5 P.A. 217.60 mag 12.51 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 18494+6234 : ALADIN DSS IMAGE @ 18h 49m 25.09s +62° 34' 17.9"
 
 
 
 
WDS 18494+6234 HJ 2846 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18494+6234 HJ 2846 distance=0' 18517+6222 ES 1841 distance=20' 18473+6254 ES 127 distance=25' 18472+6215 LDS2749 distance=26' 18524+6256 LDS2753 distance=30' 18448+6241 CFN 16 distance=33' 18533+6312 TDT1113 distance=46' 18518+6318 UC 3699 distance=47' 18558+6253 TDT1131 distance=48' 18439+6303 KPP4117 distance=48' 18573+6224 STF2440AB distance=56' 18573+6224 STF2440AC distance=56' 18573+6224 WAL 98AD distance=56' 18411+6226 LDS2746 distance=59' 18576+6210 TDT1147 distance=62' 18550+6143 ES 2669 distance=65' 18413+6311 ES 1839 distance=67' 18580+6159 ES 1843 distance=70' 18565+6144 ES 1842 distance=72' 18596+6301 HU 939 distance=75' 18461+6121 MLR 7 distance=77' 18462+6351 STI 861 distance=80' 18402+6326 MLR 44 distance=82' 18480+6113 LDS2750 distance=83' 18367+6222 TDT 956 distance=89' 19017+6308 LDS2426 distance=90' 19018+6204 UC 3767 distance=92' 18456+6404 ES 1840 distance=94' 18384+6332 STF2377AB distance=95' 18384+6332 WAL 150AC distance=95' 18406+6123 ES 1838 distance=96' 18373+6147 LDS2418 distance=97' 18443+6103 STF2403 distance=99' 18462+6412 HU 937 distance=100' 18393+6348 ES 126BC distance=101' 18593+6347 ES 1844AB distance=101' 18593+6347 ES 1844AC distance=101' 18393+6348 ES 126AB distance=101' 18393+6348 ES 126AD distance=101' 18420+6109 LDS2747 distance=101' 18482+6415 SLN 84 distance=102' 18418+6402 WIS 329 distance=102' 18381+6341 KPP2683 distance=102' 18377+6342 HU 933 distance=105' 19045+6245 TDT1211 distance=105' 19045+6248 MLR 8 distance=105' 19008+6125 LDS2755 distance=106' 18572+6406 KPP4130 distance=106' 18509+6425 TOI1749 distance=112' 18483+6044 LDS2751 distance=112' 18510+6425 UC 3695 distance=112' 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 18494+6234 HJ 2846 239 14.6
Show 18517+6222 ES 1841 105 3.4 20
Show 18473+6254 ES 127 143 5.0 25
Show 18472+6215 LDS2749 231 21.5 26
Show 18524+6256 LDS2753 292 3.6 30
Show 18448+6241 CFN 16 278 1.3 33
Show 18533+6312 TDT1113 90 0.9 46
Show 18518+6318 UC 3699 176 45.4 47
Show 18558+6253 TDT1131 239 0.5 48
Show 18439+6303 KPP4117 24 1.5 48
Show 18573+6224 STF2440 AB 122 17.4 56
Show 18573+6224 STF2440 AC 60 161.0 56
Show 18573+6224 WAL 98 AD 71 53.9 56
Show 18411+6226 LDS2746 288 17.7 59
Show 18576+6210 TDT1147 71 0.9 62
Show 18550+6143 ES 2669 166 11.9 65
Show 18413+6311 ES 1839 17 4.5 67
Show 18580+6159 ES 1843 168 4.8 70
Show 18565+6144 ES 1842 266 7.7 72
Show 18596+6301 HU 939 47 3.6 75
Show 18461+6121 MLR 7 303 1.1 77
Show 18462+6351 STI 861 61 12.8 80
Show 18402+6326 MLR 44 116 0.4 82
Show 18480+6113 LDS2750 136 2.2 83
Show 18367+6222 TDT 956 266 0.5 89
Show 19017+6308 LDS2426 62 4.4 90
Show 19018+6204 UC 3767 258 22.3 92
Show 18456+6404 ES 1840 216 9.1 94
Show 18384+6332 STF2377 AB 338 16.9 95
Show 18384+6332 WAL 150 AC 351 94.9 95
Show 18406+6123 ES 1838 153 7.0 96
Show 18373+6147 LDS2418 245 118.6 97
Show 18443+6103 STF2403 278 1.1 99
Show 18462+6412 HU 937 333 1.0 100
Show 18393+6348 ES 126 BC 24 4.8 101
Show 18593+6347 ES 1844 AB 19 2.8 101
Show 18593+6347 ES 1844 AC 119 15.5 101
Show 18393+6348 ES 126 AB 52 72.4 101
Show 18393+6348 ES 126 AD 54 46.0 101
Show 18420+6109 LDS2747 68 4.0 101
Show 18482+6415 SLN 84 341 2.2 102
Show 18418+6402 WIS 329 288 491.7 102
Show 18381+6341 KPP2683 134 3.5 102
Show 18377+6342 HU 933 2 0.9 105
Show 19045+6245 TDT1211 32 0.8 105
Show 19045+6248 MLR 8 16 0.6 105
Show 19008+6125 LDS2755 55 8.5 106
Show 18572+6406 KPP4130 294 2.2 106
Show 18509+6425 TOI1749 37 23.1 112
Show 18483+6044 LDS2751 152 7.6 112
Show 18510+6425 UC 3695 217 23.0 112

 
 
WDS 18494+6234 : COMPONENTS
 
 
  A
B pa=217.6°
sep=9.48"
 
 
18494+6234 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 184925.09+623417.9 Mag 10.54 PmRA 4.00
PmDE 1.0 Tycho2 4219-00588-1 DM BD+62 1653
Tycho2
Tycho2 4219-00588-1 Pflag RAmdeg 282.35452927 DEmdeg 62.57163480
PmRA -2.7 PmDE 4.6 E RAmdeg 27 E DEmdeg 28
E pmRA 2.7 E pmDE 2.7 EpRAm 1988.01 EpDEm 1987.95
Num 5 Q RAmdeg 2.2 Q DEmdeg 0.8 Q pmRA 2.2
Q pmDE 0.9 BTmag 11.880 E BTmag 0.086 VTmag 10.542
E VTmag 0.043 Prox 145 TYC T HIP
CCDM RAdeg 282.35457444 DEdeg 62.57162278 EpRA 1990 1.65
EpDE 1990 1.74 E RAdeg 34.7 E DEdeg 36.2 Posflg
Corr -0.1
 
 
18494+6234 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 184924.25+623410.4 Mag 12.51 PmRA 2.00
PmDE -10.0 Tycho2 4219-00356-1 Calc delta mag 1.97 Calc coord yes
Tycho2
Tycho2 4219-00356-1 Pflag RAmdeg 282.34696236 DEmdeg 62.56963739
PmRA 3.3 PmDE -1.5 E RAmdeg 114 E DEmdeg 122
E pmRA 5.4 E pmDE 6.0 EpRAm 1985.70 EpDEm 1986.12
Num 2 Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 13.844 E BTmag 0.391 VTmag 12.509
E VTmag 0.208 Prox 145 TYC HIP
CCDM RAdeg 282.34694583 DEdeg 62.56964083 EpRA 1990 1.67
EpDE 1990 1.75 E RAdeg 119.4 E DEdeg 127.0 Posflg
Corr -0.1