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Current system
14035+1047
GJ 538
HD 122742


Nearby doubles
40' : 14012+1028
SLW 955

49' : 14030+1135
GWP2193

56' : 14041+0953
HEI 778

64' : 14075+1115
HEI 527

65' : 14065+1136
LDS4432

68' : 14031+1154
HJ 2699AB

68' : 14040+1154
TDS9082

72' : 13587+1059
SKF1809

77' : 14063+1152
KPP4337AB

79' : 14033+1205
KPP1405

80' : 13594+1138
SKF 9

83' : 13584+1120
HDS1959

86' : 14092+1032
GWP2244

87' : 13583+1008
BRT1280

89' : 14084+1140
CBL 440

91' : 14089+1131
SLW 973

93' : 14071+1203
CVR1564

93' : 14094+1015
RAO 16

96' : 14100+1043
GWP2252

97' : 14036+1223
NSN 651

97' : 14013+1218
GRV1256

99' : 13598+0926
GII 27

100' : 14097+1132
LDS4437

102' : 14009+0912
HEI 777

106' : 14104+1116
GWP2256AB

107' : 14024+1232
HEI 525



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.

14035+1047 GJ 538 (HD 122742)

 
 
14h 03m 32.35s +10° 47' 12.4" P.A. 253.00 sep 0.2 mag 6.30,10.00 Sp G6V dist. 16.98 pc (55.39 l.y.)
 
 
Coord 2000 14035+1047 Discov num GJ  538 Comp Coord arcsec 2000 14 03 32.35 +10 47 12.4
Date first 2003 Date last 2021 Obs 12
Pa first 80 Pa last 252.7 P.A. Now (θ) 82.5°
Sep first 0.2 Sep last 0.161 Sep. Now (ρ) 0.214"
Mag pri 6.30 Mag sec 10.00 delta mag (ΔM) 3.7 Spectral class G6V (yellow)
Pri motion ra +084 Sec motion ra
Pri motion dec -304 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 122742 Constellation Bootes SAO 100832 HIP 68682
Tycho2 0904-01278-1 HD 122742 HR 5273 GC 18985
GL Gl 538 BD BD+11 2625 Distance 16.98 Distance ly 55.39
 
 
ORBITAL ELEMENTS
 
 
Period (P)9.876y± 0 Periastron (T)2011.17y± 0 Semi-major axis (a)0.3156a± 0.0006
Eccentricity (e)0.48± 0.001 Inclination (i)96.9°± 0.2 Longitude of periastron (ω)183°± 0.2
Node (Ω)74°± 0.1 Notesn ReferenceTok2020e
Equinox Last observation Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 40.2 0.058
2001 258.0 0.150
2002 232.2 0.065
2003 85.1 0.167
2004 78.5 0.331
2005 75.9 0.430
2006 74.0 0.466
2007 72.2 0.445
2008 69.9 0.365
2009 65.4 0.225
2010 17.7 0.037
2011 256.1 0.160
2012 214.3 0.041
2013 83.6 0.191
2014 78.1 0.347
2015 75.7 0.437
2016 73.8 0.467
2017 72.0 0.438
2018 69.6 0.351
2019 64.4 0.203
2020 330.7 0.030
2021 254.3 0.164
2022 169.7 0.028
2023 82.5 0.214
2024 77.7 0.362
2025 75.4 0.444
2026 73.6 0.466
2027 71.7 0.430
2028 69.2 0.336
2029 63.1 0.180
2030 292.6 0.044


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds14035%2B1047a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 14035+1047 GJ 538 (HD 122742) : NOTES
 
 
discov_num notes refcode
GJ 538 Hipparcos astrometric solution adopted some elements from the orbit of HIP1997d
Kamper (1987). Kpr1987a
Combined astrometric/spectroscopic solution by Kamper (1987). Kpr1987a
GJ 538. Martin et al. (1998) derive component masses 1.109 +/- 0.057
and 0.548 +/- 0.033 Msun. Mig1998
 
 
REFERENCES
 
 
refcode metd author reference
HIP1997d orb - Hipparcos 1997yCat.1239....0E
HIP1997d Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d (DMSA/O Orbital Solutions)
Kpr1987a orb - Kamper, K.W. 1987AJ.....93..683K
Kpr1987a AJ 93, 683, 1987
Mig1998 orb - Martin, Ch., Mignard, F., Hartkopf, W.I., & McAlister, H.A. 1998A&AS..133..149M
Mig1998 A&AS 133, 149, 1998
Tok2020e St j Tokovinin, A., Mason, B.D., Mendez, R.A., Costa, E. & Horch, E.P. 2020AJ....160....7T
Tok2020e +orb AJ 160, 7, 2020
 
 
DISCOVERER
 
 
idgroup discov author
1 GJ Gliese, W. & Jahreiss, H.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
14035+1047 GJ 538 2014 3 77 0.4 6.30 10.00 G6V N 140332.35+104712.4
14035+1047 GJ 538 2018 4 69 0.3 6.30 10.00 G6V N 140332.35+104712.4
14035+1047 GJ 538 2019 6 60 0.1 6.30 10.00 G6V N 140332.35+104712.4
14035+1047 GJ 538 2021 7 253 0.2 6.30 10.00 G6V N 140332.35+104712.4

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

 
 
WDS 14035+1047 GJ 538 (HD 122742) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 14035+1047 GJ 538 (HD 122742) : MEASURES
 
 
No records found.

 
 
WDS 14035+1047 (HD 122742) : VIRTUAL EYEPIECE
 
 

14035+1047 GJ 538A mag 6.3 Sp G6V 14035+1047 GJ 538B sep 0.2 P.A. 252.40 mag 10 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 14035+1047 (HD 122742) : ALADIN DSS IMAGE @ 14h 03m 32.35s +10° 47' 12.4"
 
 
 
 
WDS 14035+1047 GJ 538 (HD 122742) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

14035+1047 GJ 538 distance=0' 14012+1028 SLW 955 distance=40' 14030+1135 GWP2193 distance=49' 14041+0953 HEI 778 distance=56' 14075+1115 HEI 527 distance=64' 14065+1136 LDS4432 distance=65' 14031+1154 HJ 2699AB distance=68' 14040+1154 TDS9082 distance=68' 14031+1154 HJ 2699BC distance=68' 14025+0941 WIS 244A,BC distance=68' 14025+0941 RAO 309BC distance=71' 13587+1059 SKF1809 distance=72' 14063+1152 KPP4337AB distance=77' 14063+1152 KPP4337AC distance=77' 14063+1152 KPP4337BC distance=77' 14033+1205 KPP1405 distance=79' 13594+1138 SKF 9 distance=80' 13584+1120 HDS1959 distance=83' 14092+1032 GWP2244 distance=86' 13583+1008 BRT1280 distance=87' 14084+1140 CBL 440 distance=89' 14089+1131 SLW 973 distance=91' 14071+1203 CVR1564 distance=93' 14094+1015 RAO 16 distance=93' 14100+1043 GWP2252 distance=96' 14036+1223 NSN 651 distance=97' 14013+1218 GRV1256 distance=97' 13598+0926 GII 27 distance=99' 14097+1132 LDS4437 distance=100' 14009+0912 HEI 777 distance=102' 14104+1116 GWP2256AB distance=106' 14024+1232 HEI 525 distance=107' 13577+0944 SLW 949 distance=108' 14104+1116 GWP2257CD distance=108' 14011+0902 KPP2248 distance=111' 13572+1151 HJ 233 distance=114' 14099+1152 HDS1985 distance=114' 13563+1148 UC 186 distance=123' 14023+0846 GWP2186 distance=123' 14074+1236 GWP2229 distance=123' 14113+0954 GRV 883 distance=128' 13593+1238 TDS9057 distance=128' 14029+0840 HEI 5 distance=128' 14018+0842 CVR1557 distance=128' 14000+0846 UC 2654 distance=132' 14051+0832 LDS4431 distance=138' 14128+1104 A 1099 distance=138' 13571+1227 STF1792 distance=138' 14037+0829 BU 1270 distance=139' 14101+0902 SLW 977 distance=143' 14116+1209 WIS 254 distance=145' 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 14035+1047 GJ 538 253 0.2
Show 14012+1028 SLW 955 112 34.3 40
Show 14030+1135 GWP2193 196 176.3 49
Show 14041+0953 HEI 778 350 3.1 56
Show 14075+1115 HEI 527 308 1.8 64
Show 14065+1136 LDS4432 95 14.8 65
Show 14031+1154 HJ 2699 AB 10 35.1 68
Show 14040+1154 TDS9082 88 2.6 68
Show 14031+1154 HJ 2699 BC 299 15.5 68
Show 14025+0941 WIS 244 A,BC 108 929.7 68
Show 14025+0941 RAO 309 BC 47 0.6 71
Show 13587+1059 SKF1809 207 11.4 72
Show 14063+1152 KPP4337 AB 115 2.4 77
Show 14063+1152 KPP4337 AC 203 28.2 77
Show 14063+1152 KPP4337 BC 208 28.2 77
Show 14033+1205 KPP1405 45 10.5 79
Show 13594+1138 SKF 9 88 12.2 80
Show 13584+1120 HDS1959 180 0.2 83
Show 14092+1032 GWP2244 33 164.0 86
Show 13583+1008 BRT1280 109 6.2 87
Show 14084+1140 CBL 440 249 36.8 89
Show 14089+1131 SLW 973 250 66.7 91
Show 14071+1203 CVR1564 156 4.2 93
Show 14094+1015 RAO 16 262 0.1 93
Show 14100+1043 GWP2252 82 8.2 96
Show 14036+1223 NSN 651 72 2.5 97
Show 14013+1218 GRV1256 199 1.6 97
Show 13598+0926 GII 27 315 0.7 99
Show 14097+1132 LDS4437 155 230.0 100
Show 14009+0912 HEI 777 215 1.8 102
Show 14104+1116 GWP2256 AB 331 346.7 106
Show 14024+1232 HEI 525 352 0.2 107
Show 13577+0944 SLW 949 306 81.5 108
Show 14104+1116 GWP2257 CD 136 84.0 108
Show 14011+0902 KPP2248 336 18.7 111
Show 13572+1151 HJ 233 133 20.4 114
Show 14099+1152 HDS1985 290 0.3 114
Show 13563+1148 UC 186 127 45.5 123
Show 14023+0846 GWP2186 321 5.5 123
Show 14074+1236 GWP2229 267 515.1 123
Show 14113+0954 GRV 883 335 11.6 128
Show 13593+1238 TDS9057 272 0.6 128
Show 14029+0840 HEI 5 274 2.3 128
Show 14018+0842 CVR1557 197 4.5 128
Show 14000+0846 UC 2654 6 22.1 132
Show 14051+0832 LDS4431 138 18.8 138
Show 14128+1104 A 1099 66 0.2 138
Show 13571+1227 STF1792 291 2.3 138
Show 14037+0829 BU 1270 43 0.2 139
Show 14101+0902 SLW 977 55 25.9 143
Show 14116+1209 WIS 254 14 999.9 145

 
 
WDS 14035+1047 : COMPONENTS
 
 
  A
B pa=252.4°
sep=0.16"
 
 
14035+1047 A
 
 
Componente originario normalizzato AB Name HD 122742 Coord arcsec 2000 140332.35+104712.4 Mag 6.3
Spectral class G6V (yellow) PmRA 84.00 PmDE -304.0 SAO 100832
HIP 68682 Tycho2 0904-01278-1 HD 122742 HR 5273
GC 18985 BD BD+11 2625
Tycho2
Tycho2 0904-01278-1 Pflag RAmdeg 210.88480808 DEmdeg 10.78677067
PmRA 91.1 PmDE -307.5 E RAmdeg 4 E DEmdeg 4
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.35 EpDEm 1991.36
Num 14 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 1.1
Q pmDE 1.0 BTmag 7.206 E BTmag 0.015 VTmag 6.353
E VTmag 0.010 Prox 999 TYC T HIP 68682
CCDM RAdeg 210.88459111 DEdeg 10.78749167 EpRA 1990 1.58
EpDE 1990 1.56 E RAdeg 3.5 E DEdeg 3.9 Posflg
Corr 0.2
SAO
SAO 100832 DelFlag RA1950 PmRA1950 0.0055
DE1950 PmDE1950 -0.311 Vmag 6.4 SpType G5
Double code Source 70 CatNum 18985 DM BD+11 2625
DMcomp BDsup HD 122742 M HD 0
GC 18985 RA1950rad 3.66990577 DE1950rad 0.19252129 PmRA2000 0.0057
PmDE2000 -0.307
Hipparcos
Catalog H HIP 68682 Proxy RAhms 14 03 32.30
DEdms +10 47 15.1 Vmag 6.27 VarFlag R Vmag H
RAdeg 210.885 DEdeg 10.7875 AstroRef + Plx 60.24
CCDM N CCDM Nsys Ncomp 1
MultFlag O Source Qual M HIP
Theta Rho HD 122742 BD BD+11 2625
CD CP Dm number +11 2625 VIred 0.82
SpType G8V R SpType Coord arcsec 2000 140332.30+104715.1
Hipparcos 2
HIP 68682 Sn 75 So 4 Nc 1
RArad 3.6806303878 DErad 0.1882777052 Plx 58.88 PmRA 84.41
PmDE -304.4 E RArad 0.46 E DErad 0.35 E Plx 0.62
E pmRA 0.52 E pmDE 0.36 Hpmag 6.4115 E Hpmag 0.0006
SHp 0.007 VA 0 BV 0.733 E BV 0.003
VI 0.82
CCDM
Ccdm 14035+1047 RComp Comp A Note1
Note2 % Discov num DRAs 2.35 DDEs 12.4
R dRAs 82 Year Theta Rho
Obs 1 Vmag 6.3 Sp G8 PmNote
PmRA 85 PmDE -304 Dm number +11 2625 Cat1 BD
Name2 +11 1547 Cat2 AGK2/3 HD 122742 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 68682
 
 
14035+1047 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 140332.34+104712.4 Mag 10 Calc delta mag 3.7
Calc coord yes