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Doubles in session


Current system
11194-0139
STF 1529
HD 98427


Nearby doubles
15' : 11187-0150
CVR 602

17' : 11197-0125
LDS4083

35' : 11206-0208
UC 2120

36' : 11172-0153
EPI 1

37' : 11218-0144
STF3069

44' : 11214-0212
CVR 606

47' : 11216-0211
RST4943

49' : 11162-0145
OCC 855

61' : 11153-0132
LDS4076

62' : 11156-0203
GWP1565

64' : 11154-0117
KPP2755

72' : 11242-0144
SLW 596

77' : 11205-0254
BAL 215

78' : 11244-0158
BAL 535

81' : 11246-0156
BAL 536

86' : 11144-0225
HJ 178AB

88' : 11249-0205
EPI 5

88' : 11144-0226
J 91

89' : 11228-0252
BAL 216

96' : 11257-0127
GWP1584

100' : 11201-0318
CVR 603

102' : 11245-0246
SLW 597

111' : 11195-0011
OCC9154AB

123' : 11265-0237
CBL 603

125' : 11185+0025
BAL1158

127' : 11167-0339
SHJ 121



Selections
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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.

11194-0139 STF 1529 (HD 98427)

 
 
11h 19m 22.64s -01° 39' 17.6" P.A. 254.00 sep 9.3 mag 7.10,7.91 Sp F6IV+dG3 dist. 48.12 pc (156.97 l.y.)
 
 
Coord 2000 11194-0139 Discov num STF1529 Comp Coord arcsec 2000 11 19 22.64 -01 39 17.6
Date first 1796 Date last 2017 Obs 92
Pa first 259 Pa last 253.8 P.A. Now (θ) 253.8°
Sep first 10.7 Sep last 9.307 Sep. Now (ρ) 9.307"
Mag pri 7.10 Mag sec 7.91 delta mag (ΔM) 0.81 Spectral class F6IV+dG3 (yellow-white)
Pri motion ra -221 Sec motion ra -221
Pri motion dec -153 Sec motion dec -153
Notes N V (See Notes, Proper motion indicates physical)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 98427 Constellation Leo SAO 138130 HIP 55288
Tycho2 4922-01218-1 Gaia DR2 3790864411783833600 HD 98427 GC 15566
BD BD-00 2428 Distance 48.12 Distance ly 156.97
 
 
WDS 11194-0139 STF 1529 (HD 98427) : NOTES
 
 
discov_num notes refcode
STF1529 NLTT 26997/26995 Chm2004
 
 
REFERENCES
 
 
refcode metd author reference
Chm2004 E - Chaname, J. & Gould, A. 2004ApJ...601..289C
Chm2004 ApJ 601, 289, 2004
Chm2004 (Photometry, coordinates, and astrometry from rNLTT. Astrometry from early
Chm2004 versions of 2MASS and UCAC, with date given only as "circa 2000". Measures
Chm2004 identical to discovery observations - predominantly close pairs - were assumed
Chm2004 not new observations, so not included in WDS. Similar concerns when primary and
Chm2004 secondary magnitudes or proper motions were the same.)
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
11194-0139 STF1529 2006 80 254 9.5 7.10 7.91 F6IV dG3 N DV 111922.64-013917.6
11194-0139 STF1529 2010 83 254 9.5 7.10 7.91 F6IV dG3 NVD 111922.64-013917.6
11194-0139 STF1529 2012 86 255 8.9 7.10 7.91 F6IV dG3 NVD 111922.64-013917.6
11194-0139 STF1529 2016 89 255 9.4 7.10 7.91 F6IV+dG3 NV 111922.64-013917.6
11194-0139 STF1529 2017 90 254 9.3 7.10 7.91 F6IV+dG3 NV 111922.64-013917.6

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

 
 
WDS 11194-0139 STF 1529 (HD 98427) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 23/04/21 Daedalus1 mean difficulty separated 253   Very nice pair! Interesting star field. Companion definitely yellow.

 
 
WDS 11194-0139 STF 1529 (HD 98427) : MEASURES
 
 
Records found: 1
Show date username difficulty sep sep_sigma pa pa_sigma delta_mag # notes
Show 23/04/21 Daedalus1 mean difficulty 9.27 0.08 253.00 0.00 0.79 12 Seeing: Pickering 6, good
 
 
WDS 11194-0139 (HD 98427) : VIRTUAL EYEPIECE
 
 

11194-0139 STF1529A mag 7.1 Sp F6IV 11194-0139 STF1529B sep 9.3 P.A. 253.80 mag 7.91 Sp dG3 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 11194-0139 (HD 98427) : ALADIN DSS IMAGE @ 11h 19m 22.64s -01° 39' 17.6"
 
 
 
 
WDS 11194-0139 STF 1529 (HD 98427) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

11194-0139 STF1529 distance=0' 11187-0150 CVR 602 distance=15' 11197-0125 LDS4083 distance=17' 11206-0208 UC 2120 distance=35' 11172-0153 EPI 1 distance=36' 11218-0144 STF3069 distance=37' 11214-0212 CVR 606 distance=44' 11216-0211 RST4943 distance=47' 11162-0145 OCC 855 distance=49' 11153-0132 LDS4076 distance=61' 11156-0203 GWP1565 distance=62' 11154-0117 KPP2755 distance=64' 11242-0144 SLW 596 distance=72' 11205-0254 BAL 215 distance=77' 11244-0158 BAL 535 distance=78' 11246-0156 BAL 536 distance=81' 11144-0225 HJ 178BC distance=85' 11144-0225 HJ 178AB distance=86' 11144-0225 HJ 178AC distance=86' 11249-0205 EPI 5 distance=88' 11144-0226 J 91 distance=88' 11228-0252 BAL 216 distance=89' 11257-0127 GWP1584 distance=96' 11201-0318 CVR 603 distance=100' 11245-0246 SLW 597 distance=102' 11195-0011 OCC9154AB distance=111' 11195-0011 OCC9154AC distance=111' 11265-0237 CBL 603 distance=123' 11185+0025 BAL1158 distance=125' 11167-0339 SHJ 121 distance=127' 11279-0142 RST4944 distance=128' 11280-0155 STF3071 distance=131' 11185+0033 SKF1578 distance=134' 11281-0209 SLW 603 distance=134' 11146-0015 BAL1157 distance=135' 11201-0356 J 748 distance=138' 11220+0033 BAL1446 distance=139' 11100-0149 BAL 532 distance=141' 11098-0128 DAM 714 distance=144' 11202-0047 GIC9016 distance=147' 11132+0014 YSC 208 distance=147' 11293-0127 K2 3 distance=150' 11294-0157 SLW 608 distance=151' 11093-0136 RST4937 distance=151' 11231-0403 RST4474 distance=154' 11157+0047 GWP1567 distance=157' 11100-0249 UC 2092 distance=157' 11290-0117 GRV1056 distance=160' 11087-0128 RST4936 distance=162' 11095-0242 GWP1545 distance=162' 11296-0233 KPP3847 distance=162' 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 11194-0139 STF1529 254 9.3
Show 11187-0150 CVR 602 295 25.7 15
Show 11197-0125 LDS4083 7 6.0 17
Show 11206-0208 UC 2120 152 36.5 35
Show 11172-0153 EPI 1 48 22.0 36
Show 11218-0144 STF3069 219 17.4 37
Show 11214-0212 CVR 606 65 25.2 44
Show 11216-0211 RST4943 86 1.6 47
Show 11162-0145 OCC 855 -1 0.1 49
Show 11153-0132 LDS4076 47 24.3 61
Show 11156-0203 GWP1565 74 67.7 62
Show 11154-0117 KPP2755 179 1.3 64
Show 11242-0144 SLW 596 309 77.5 72
Show 11205-0254 BAL 215 191 16.3 77
Show 11244-0158 BAL 535 116 7.6 78
Show 11246-0156 BAL 536 146 11.5 81
Show 11144-0225 HJ 178 BC 202 59.8 85
Show 11144-0225 HJ 178 AB 34 18.5 86
Show 11144-0225 HJ 178 AC 197 42.2 86
Show 11249-0205 EPI 5 190 0.1 88
Show 11144-0226 J 91 56 0.8 88
Show 11228-0252 BAL 216 167 14.2 89
Show 11257-0127 GWP1584 226 19.5 96
Show 11201-0318 CVR 603 93 21.6 100
Show 11245-0246 SLW 597 103 19.6 102
Show 11195-0011 OCC9154 AB -1 0.0 111
Show 11195-0011 OCC9154 AC -1 0.2 111
Show 11265-0237 CBL 603 241 8.3 123
Show 11185+0025 BAL1158 45 5.6 125
Show 11167-0339 SHJ 121 291 86.8 127
Show 11279-0142 RST4944 182 0.1 128
Show 11280-0155 STF3071 299 35.6 131
Show 11185+0033 SKF1578 300 167.2 134
Show 11281-0209 SLW 603 82 8.3 134
Show 11146-0015 BAL1157 328 3.7 135
Show 11201-0356 J 748 245 2.2 138
Show 11220+0033 BAL1446 280 2.9 139
Show 11100-0149 BAL 532 17 11.3 141
Show 11098-0128 DAM 714 197 10.9 144
Show 11202-0047 GIC9016 129 1.6 147
Show 11132+0014 YSC 208 330 0.3 147
Show 11293-0127 K2 3 54 26.0 150
Show 11294-0157 SLW 608 184 40.6 151
Show 11093-0136 RST4937 66 0.8 151
Show 11231-0403 RST4474 63 1.4 154
Show 11157+0047 GWP1567 156 19.5 157
Show 11100-0249 UC 2092 165 49.4 157
Show 11290-0117 GRV1056 106 9.6 160
Show 11087-0128 RST4936 6 1.3 162
Show 11095-0242 GWP1545 307 19.8 162
Show 11296-0233 KPP3847 25 2.8 162

 
 
WDS 11194-0139 : COMPONENTS
 
 
  A
B pa=253.8°
sep=9.30"
 
 
11194-0139 A
 
 
Componente originario normalizzato AB Name HD 98427 Coord arcsec 2000 111922.64-013917.6 Mag 7.1
Spectral class F6IV (yellow-white) PmRA -221.00 PmDE -153.0 SAO 138130
HIP 55288 Tycho2 4922-01218-1 HD 98427 GC 15566
BD BD-00 2428
Tycho2
Tycho2 4922-01218-1 Pflag RAmdeg 169.84432256 DEmdeg -1.65488751
PmRA -222.1 PmDE -153.8 E RAmdeg 6 E DEmdeg 6
E pmRA 0.7 E pmDE 0.7 EpRAm 1990.82 EpDEm 1990.83
Num 22 Q RAmdeg 1.5 Q DEmdeg 1.7 Q pmRA 1.4
Q pmDE 1.9 BTmag 7.680 E BTmag 0.016 VTmag 7.099
E VTmag 0.012 Prox 95 TYC T HIP 55288
CCDM A RAdeg 169.84482444 DEdeg -1.65453806 EpRA 1990 1.87
EpDE 1990 1.83 E RAdeg 5.8 E DEdeg 5.8 Posflg
Corr 0.3
SAO
SAO 138130 DelFlag RA1950 PmRA1950 -0.0154
DE1950 PmDE1950 -0.16 Vmag 7 SpType F8
Double code Source 70 CatNum 15566 DM BD-00 2428
DMcomp A BDsup HD 98427 M HD 0
GC 15566 RA1950rad 2.95323744 DE1950rad -0.0240687 PmRA2000 -0.0152
PmDE2000 -0.156
Hipparcos
Catalog H HIP 55288 Proxy H RAhms 11 19 22.77
DEdms -01 39 16.3 Vmag 6.61 VarFlag R Vmag H
RAdeg 169.845 DEdeg -1.65452 AstroRef A Plx 17.98
CCDM 11194-0139 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 254 Rho 9.48 HD 98427 BD BD-00 2428
CD CP Dm number -00 2428 VIred 0.64
SpType F8+... R SpType Coord arcsec 2000 111922.77-013916.3
Hipparcos 2
HIP 55288 Sn 15 So 3 Nc 2
RArad 2.9643520211 DErad -0.0288767125 Plx 20.78 PmRA -217.37
PmDE -153.94 E RArad 1.35 E DErad 1 E Plx 1.52
E pmRA 1.84 E pmDE 1.12 Hpmag 6.7353 E Hpmag 0.0017
SHp 0.028 VA 0 BV 0.57 E BV 0.002
VI 0.64
CCDM
Ccdm 11194-0139 RComp Comp A Note1
Note2 Discov num DRAs -1.41 DDEs -17.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.0 Sp F8 PmNote *
PmRA -233 PmDE -157 Dm number -00 2428 Cat1 BD
Name2 -01 1581 Cat2 AGK2/3 HD 98427 M HD
ADS BDS A 8131 M ADS BDS N IDS IDS 11143S0106A
HIC 55288
 
 
11194-0139 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 111922.04-013920.2 Mag 7.91 Spectral class dG3
PmRA -221.00 PmDE -153.0 Tycho2 4922-01220-1 Calc delta mag 0.81
Calc coord yes
Tycho2
Tycho2 4922-01220-1 Pflag RAmdeg 169.84180861 DEmdeg -1.65563267
PmRA -215.2 PmDE -154.8 E RAmdeg 9 E DEmdeg 9
E pmRA 1.1 E pmDE 1.1 EpRAm 1990.84 EpDEm 1990.93
Num 10 Q RAmdeg 2.7 Q DEmdeg 1.0 Q pmRA 2.7
Q pmDE 1.0 BTmag 8.690 E BTmag 0.021 VTmag 7.910
E VTmag 0.015 Prox 95 TYC T HIP 55288
CCDM B RAdeg 169.84229861 DEdeg -1.65527972 EpRA 1990 1.81
EpDE 1990 1.80 E RAdeg 8.9 E DEdeg 8.9 Posflg
Corr 0.2
CCDM
Ccdm 11194-0139 RComp Comp B Note1
Note2 Discov num STF1529 DRAs -2.02 DDEs -20.0
R dRAs 90 Year 1833 Theta 252 Rho 9.6
Obs 99 Vmag 8.0 Sp PmNote *
PmRA -233 PmDE -153 Dm number Cat1
Name2 -01 1580 Cat2 AGK2/3 HD M HD
ADS BDS A 8131 M ADS BDS N IDS IDS 11143S0106B
HIC 55288