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Doubles in session


Current system
20042+4234
NSN 727 CB


Nearby doubles
34' : 20024+4204
SKF1318

42' : 20030+4310
TDS1035

44' : 20080+4223
A 382

47' : 20028+4315
TDT1934

47' : 20003+4213
GRF 14

50' : 20082+4210
TDS1045

51' : 20039+4321
ES 1437

51' : 20080+4204
A 383

54' : 19594+4225
GRV 304

55' : 19592+4233
COU2636

57' : 19590+4231
TDS1031

58' : 20090+4252
OSO 118AB

61' : 19592+4258
GRV 303

71' : 19579+4216
STT 392AB

71' : 20099+4200
CVR 219

73' : 20079+4330
STJ 94

74' : 20045+4116
HJ 1475

75' : 20031+4118
TDT1936

75' : 20097+4149
TDT2037

75' : 20033+4116
KPP4183

76' : 20107+4208
COU2637

80' : 20060+4348
TDT1973

81' : 19581+4147
TDT1886

81' : 20114+4232
ES 1566

82' : 20011+4345
DEA 113

82' : 20105+4316
ROE 41



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.

20042+4234 NSN 727 CB

 
 
20h 04m 10.64s +42° 30' 42.0" P.A. 349.00 sep 23.2 mag 10.08,13.16 dist. 66.45 pc (216.76 l.y.)
 
 
Coord 2000 20042+4234 Discov num NSN 727 Comp CB Coord arcsec 2000 20 04 10.64 +42 30 42.0
Date first 1996 Date last 2016 Obs 8
Pa first 349 Pa last 348.5 P.A. Now (θ) 348.5°
Sep first 23.4 Sep last 23.223 Sep. Now (ρ) 23.223"
Mag pri 10.08 Mag sec 13.16 delta mag (ΔM) 3.08 Spectral class
Pri motion ra +043 Sec motion ra +051
Pri motion dec -219 Sec motion dec -207
Notes T (Parallax indicates physical)
rPM=0.065 (< 0.3, Physical double)
This double is physical.
 
 
20042+4234 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 04 11 +42 31 10 HJ 2929 AB 2015 9 235 14.3 12.30 12.80 0.50
Show 20 04 11 +42 30 42 NSN 727 CB 2016 8 349 23.2 10.08 13.16 3.08 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Spectr G5 Constellation Cygnus HIP 98829 Tycho2 3158-01602-1
BD BD+42 3577 Distance 66.45 Distance ly 216.76
 
 
WDS 20042+4234 NSN 727 CB : 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.
Nsn2013 M+ w Nanson, J., McGaughey, S. & Armstrong, J.D. 2013JDSO....9..267N
Nsn2013 +C JDSO 9, 267, 2013
Nsn2014 C u Nanson, J. & Smith, S.C. 2014JDSO...10..139N
Nsn2014 JDSO 10, 139, 2014
Nsn2015 C - Nanson, J., Smith, S.C. & Thuemen, C. 2015JDSO...11...12N
Nsn2015 JDSO 11, 12, 2015
Nsn2016 not - Nanson, J. ...................
Nsn2016 private communication, 2016
Nsn2016b C j Nanson, J. & Knapp, W.R.A. 2016JDSO...12..450N
Nsn2016b JDSO 12, 450, 2016
Nsn2016c not - Nanson, J. 2016JDSO...12..573N
Nsn2016c JDSO 12, 573, 2016
Nsn2017a not - Nanson, J. ...................
Nsn2017a private communication, 2017
Nsn2017b not - Nanson, J. ...................
Nsn2017b private communication, 2017
Nsn2017c C j Nanson, J. & Knapp, W.R.A. 2017JDSO...13..299N
Nsn2017c +E+ JDSO 13, 299, 2017
Nsn2017c +Hg
Nsn2017d not - Nanson, J. ...................
Nsn2017d private communication, 2017
Nsn2017e not - Nanson, J. & Knapp, W. ...................
Nsn2017e private communication, 2017
Nsn2018a Hg j Nanson, J. ...................
Nsn2018a private communication, 2018 (15 February 2018 email)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20042+4234 NSN 727 CB 2015 8 349 23.2 10.08 13.16 T 200410.64+423042.0
20042+4234 NSN 727 CB 2016 8 349 23.2 10.08 13.16 T 200410.64+423042.0

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

 
 
WDS 20042+4234 NSN 727 CB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20042+4234 NSN 727 CB : MEASURES
 
 
No records found.

 
 
WDS 20042+4234 : VIRTUAL EYEPIECE
 
 

20042+4234 HJ 2929A mag 12.3 20042+4234 HJ 2929B sep 11.9 P.A. 226.80 mag 12.8 20042+4234 NSN 727C sep 28.7 P.A. 195.90 mag 10.08 Sp G5 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 20042+4234 : ALADIN DSS IMAGE @ 20h 04m 10.64s +42° 30' 42.0"
 
 
 
 
WDS 20042+4234 NSN 727 CB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20042+4234 NSN 727CB distance=0' 20042+4234 HJ 2929AB distance=1' 20024+4204 SKF1318 distance=34' 20030+4310 TDS1035 distance=42' 20080+4223 A 382 distance=44' 20028+4315 TDT1934 distance=47' 20003+4213 GRF 14 distance=47' 20082+4210 TDS1045 distance=50' 20039+4321 ES 1437 distance=51' 20080+4204 A 383 distance=51' 19594+4225 GRV 304 distance=54' 19592+4233 COU2636 distance=55' 19590+4231 TDS1031 distance=57' 20090+4252 OSO 118AB distance=58' 20090+4252 OSO 118AC distance=58' 19592+4258 GRV 303 distance=61' 19579+4216 STT 392AB distance=71' 19579+4216 STF2607AB,C distance=71' 20099+4200 CVR 219 distance=71' 20079+4330 STJ 94 distance=73' 20045+4116 HJ 1475 distance=74' 20031+4118 TDT1936 distance=75' 20097+4149 TDT2037 distance=75' 20033+4116 KPP4183 distance=75' 20107+4208 COU2637 distance=76' 20060+4348 TDT1973 distance=80' 19581+4147 TDT1886 distance=81' 20114+4232 ES 1566 distance=81' 20011+4345 DEA 113 distance=82' 20105+4316 ROE 41 distance=82' 19568+4240 TDT1868 distance=83' 20097+4130 HDS2871 distance=88' 20077+4349 TDT2001 distance=88' 20044+4359 ES 2687 distance=88' 20035+4358 KOI5480 distance=89' 19588+4337 KOI2984AB distance=89' 19588+4337 KOI2984AC distance=89' 19588+4337 KOI2984AD distance=89' 19588+4337 KOI2984AE distance=89' 20038+4359 HJ 1472AB distance=89' 20038+4359 CTT 9AC distance=89' 20018+4356 KOI1012 distance=90' 19587+4337 KOI4209 distance=90' 19594+4344 KOI2363 distance=90' 20027+4102 TDT1931 distance=91' 20111+4131 HJ 1491 distance=91' 20023+4359 KOI4314 distance=91' 20038+4401 KOI5486 distance=91' 19581+4334 RAP 16 distance=93' 20023+4402 KOI6989 distance=94' 19586+4341 ES 1436 distance=94' 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 20042+4234 NSN 727 CB 349 23.2
Show 20042+4234 HJ 2929 AB 235 14.3 1
Show 20024+4204 SKF1318 54 23.5 34
Show 20030+4310 TDS1035 108 1.0 42
Show 20080+4223 A 382 96 1.7 44
Show 20028+4315 TDT1934 260 0.6 47
Show 20003+4213 GRF 14 157 157.2 47
Show 20082+4210 TDS1045 37 1.0 50
Show 20039+4321 ES 1437 261 4.7 51
Show 20080+4204 A 383 8 0.3 51
Show 19594+4225 GRV 304 207 55.7 54
Show 19592+4233 COU2636 23 1.0 55
Show 19590+4231 TDS1031 22 1.0 57
Show 20090+4252 OSO 118 AB 150 12.2 58
Show 20090+4252 OSO 118 AC 237 21.2 58
Show 19592+4258 GRV 303 179 53.1 61
Show 19579+4216 STT 392 AB 184 0.1 71
Show 19579+4216 STF2607 AB,C 289 3.0 71
Show 20099+4200 CVR 219 210 113.2 71
Show 20079+4330 STJ 94 162 1.2 73
Show 20045+4116 HJ 1475 274 8.6 74
Show 20031+4118 TDT1936 59 0.6 75
Show 20097+4149 TDT2037 21 2.8 75
Show 20033+4116 KPP4183 255 1.8 75
Show 20107+4208 COU2637 121 0.5 76
Show 20060+4348 TDT1973 335 0.5 80
Show 19581+4147 TDT1886 76 1.5 81
Show 20114+4232 ES 1566 352 6.0 81
Show 20011+4345 DEA 113 154 6.5 82
Show 20105+4316 ROE 41 338 6.0 82
Show 19568+4240 TDT1868 45 0.6 83
Show 20097+4130 HDS2871 228 0.2 88
Show 20077+4349 TDT2001 327 0.5 88
Show 20044+4359 ES 2687 324 8.6 88
Show 20035+4358 KOI5480 174 3.5 89
Show 19588+4337 KOI2984 AB 33 3.3 89
Show 19588+4337 KOI2984 AC 58 6.6 89
Show 19588+4337 KOI2984 AD 330 6.1 89
Show 19588+4337 KOI2984 AE 201 5.7 89
Show 20038+4359 HJ 1472 AB 222 15.4 89
Show 20038+4359 CTT 9 AC 129 59.2 89
Show 20018+4356 KOI1012 187 3.8 90
Show 19587+4337 KOI4209 206 1.0 90
Show 19594+4344 KOI2363 357 2.0 90
Show 20027+4102 TDT1931 209 2.3 91
Show 20111+4131 HJ 1491 297 4.8 91
Show 20023+4359 KOI4314 170 3.9 91
Show 20038+4401 KOI5486 333 0.3 91
Show 19581+4334 RAP 16 90 2.6 93
Show 20023+4402 KOI6989 206 3.6 94
Show 19586+4341 ES 1436 185 2.2 94

 
 
WDS 20042+4234 : COMPONENTS
 
 
  A B
B pa=226.8°
sep=11.88"
 
C pa=195.9°
sep=28.69"
pa=177.6°
sep=19.48"
 
 
20042+4234 A
 
 
Coord arcsec 2000 200411.35+423109.6 Mag 12.3 PmRA -2.00 PmDE -7.0
 
 
20042+4234 B
 
 
Coord arcsec 2000 200410.57+423101.5 Mag 12.8 PmRA -2.00 PmDE -8.0
Calc delta mag 0.5 Calc coord yes
 
 
20042+4234 C
 
 
Coord arcsec 2000 200410.64+423042.0 Mag 10.08 Spectral class G5 (yellow) PmRA 43.00
PmDE -219.0 HIP 98829 Tycho2 3158-01602-1 BD BD+42 3577
Calc delta mag 2.22
Tycho2
Tycho2 3158-01602-1 Pflag RAmdeg 301.04426628 DEmdeg 42.51161501
PmRA 52.4 PmDE -208.0 E RAmdeg 19 E DEmdeg 16
E pmRA 1.3 E pmDE 1.2 EpRAm 1987.70 EpDEm 1988.56
Num 6 Q RAmdeg 0.6 Q DEmdeg 1.0 Q pmRA 0.6
Q pmDE 1.0 BTmag 10.616 E BTmag 0.038 VTmag 9.805
E VTmag 0.026 Prox 999 TYC T HIP 98829
CCDM RAdeg 301.04409889 DEdeg 42.51210000 EpRA 1990 1.55
EpDE 1990 1.64 E RAdeg 20.8 E DEdeg 17.7 Posflg
Corr 0.0
Hipparcos
Catalog H HIP 98829 Proxy RAhms 20 04 10.58
DEdms +42 30 43.6 Vmag 9.68 VarFlag R Vmag H
RAdeg 301.044 DEdeg 42.5121 AstroRef Plx 14.48
CCDM N CCDM Nsys Ncomp 1
MultFlag G Source Qual M HIP
Theta Rho HD BD BD+42 3577
CD CP Dm number +42 3577 VIred 0.77
SpType G5 R SpType Coord arcsec 2000 200410.58+423043.6
Hipparcos 2
HIP 98829 Sn 5 So 1 Nc 1
RArad 5.2542106824 DErad 0.7419764593 Plx 15.05 PmRA 47.94
PmDE -219.79 E RArad 0.86 E DErad 0.9 E Plx 1.09
E pmRA 1.09 E pmDE 1.11 Hpmag 9.8168 E Hpmag 0.0034
SHp 0.026 VA 0 BV 0.695 E BV 0.037
VI 0.75