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Current system
02426-7947
TOK 362
HD 17742


Nearby doubles
36' : 02378-7915
TVB 36

36' : 02559-7944
UC 878

42' : 02413-7906
KPP 644

44' : 02587-7943
TVB 44

48' : 02261-7931
TDS2248

55' : 02583-7914
UC 919

62' : 02341-8045
HJ 3530AB

78' : 03020-8047
TDS2419

81' : 02565-7836
TVB 43

81' : 02563-8100
TVB 42

89' : 02565-8109
UC 892

91' : 02312-7822
HDS 328

100' : 02437-7807
HJ 3539

116' : 02505-7754
UC 825

133' : 02331-7738
BVD 25AB

133' : 02249-7745
HJ 3508

139' : 02571-7735
TDS2396

168' : 02227-8229
HJ 3519

180' : 02338-7650
JSP 41

190' : 02509-7639
JSP 44AB

213' : 02379-8320
KPP 947

229' : 02511-7600
JSP 43

235' : 02423-8341
UC 783

236' : 02333-7554
HJ 3522AB

249' : 02508-7540
KPP2398

254' : 02332-7535
JSP 40



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Neglected List I
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

02426-7947 TOK 362 (HD 17742)

 
 
02h 42m 35.59s -79° 47' 02.8" P.A. 115.00 sep 0.7 mag 9.43,11.00 Sp G9IV/V dist. 58.86 pc (192 l.y.)
 
 
Coord 2000 02426-7947 Discov num TOK 362 Comp Coord arcsec 2000 02 42 35.59 -79 47 02.8
Date first 2012 Date last 2019 Obs 6
Pa first 124 Pa last 115.4 P.A. Now (θ) 115.4°
Sep first 0.6 Sep last 0.707 Sep. Now (ρ) 0.707"
Mag pri 9.43 Mag sec 11.00 delta mag (ΔM) 1.57 Spectral class G9IV/V (yellow)
Pri motion ra +094 Sec motion ra
Pri motion dec +109 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 17742 Constellation Hydrus HIP 12654 Tycho2 9370-00981-1
Gaia DR2 4620495546107681664 HD 17742 CP CP-80 58 Distance 58.86
Distance ly 192
 
 
WDS 02426-7947 TOK 362 (HD 17742) : NOTES
 
 
discov_num notes refcode
TOK 362 This 0.6" pair with dK=1.1 is obvious and should have been resolved
both by visual observers and by Hipparcos, yet there are no
indications of previous resolution in the literature. The declination
of -79deg may have something to do with the missed companion, as the
southern sky is less well surveyed for binaries. Tok2013b
 
 
REFERENCES
 
 
refcode metd author reference
Tok2013b A j Tokovinin, A., Hartung, M., & Hayward, T.L. 2013AJ....146....8T
Tok2013b AJ 146, 8, 2013
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02426-7947 TOK 362 2013 4 123 0.6 9.43 11.00 G9IV/V N 024235.59-794702.8
02426-7947 TOK 362 2014 5 122 0.6 9.43 11.00 G9IV/V N 024235.59-794702.8
02426-7947 TOK 362 2019 6 115 0.7 9.43 11.00 G9IV/V N 024235.59-794702.8

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

 
 
WDS 02426-7947 TOK 362 (HD 17742) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 02426-7947 TOK 362 (HD 17742) : MEASURES
 
 
No records found.

 
 
WDS 02426-7947 (HD 17742) : VIRTUAL EYEPIECE
 
 

02426-7947 TOK 362A mag 9.43 Sp G9IV/V 02426-7947 TOK 362B sep 0.3 P.A. 159.50 mag 11 virtual eyepiece
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Radius:
Components only
 
 
WDS 02426-7947 (HD 17742) : ALADIN DSS IMAGE @ 02h 42m 35.59s -79° 47' 02.8"
 
 
 
 
WDS 02426-7947 TOK 362 (HD 17742) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

02426-7947 TOK 362 distance=0' 02378-7915 TVB 36 distance=36' 02559-7944 UC 878 distance=36' 02413-7906 KPP 644 distance=42' 02587-7943 TVB 44 distance=44' 02261-7931 TDS2248 distance=48' 02583-7914 UC 919 distance=55' 02341-8045 HJ 3530AB distance=62' 02341-8045 HJ 3530AC distance=62' 03020-8047 TDS2419 distance=78' 02565-7836 TVB 43 distance=81' 02563-8100 TVB 42 distance=81' 02565-8109 UC 892 distance=89' 02312-7822 HDS 328 distance=91' 02437-7807 HJ 3539 distance=100' 02505-7754 UC 825 distance=116' 02331-7738 BVD 25AB distance=133' 02249-7745 HJ 3508 distance=133' 02571-7735 TDS2396 distance=139' 02227-8229 HJ 3519 distance=168' 02338-7650 JSP 41 distance=180' 02509-7639 JSP 44AB distance=190' 02509-7639 JSP 44AC distance=190' 02509-7639 JSP 44CD distance=190' 02379-8320 KPP 947 distance=213' 02511-7600 JSP 43 distance=229' 02423-8341 UC 783 distance=235' 02333-7554 HJ 3522AB distance=236' 02333-7554 DAW 185BC distance=236' 02508-7540 KPP2398 distance=249' 02332-7535 JSP 40 distance=254' 02480-8413 HJ 3560 distance=267' 02462-8417 TOK 650 distance=271' 02313-7458 TDS2274 distance=292' 02380-7448 KPP 602 distance=300' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 02426-7947 TOK 362 115 0.7
Show 02378-7915 TVB 36 7 24.3 36
Show 02559-7944 UC 878 81 22.4 36
Show 02413-7906 KPP 644 74 5.8 42
Show 02587-7943 TVB 44 115 13.9 44
Show 02261-7931 TDS2248 59 0.6 48
Show 02583-7914 UC 919 171 15.6 55
Show 02341-8045 HJ 3530 AB 212 17.0 62
Show 02341-8045 HJ 3530 AC 166 20.4 62
Show 03020-8047 TDS2419 176 0.5 78
Show 02565-7836 TVB 43 67 15.6 81
Show 02563-8100 TVB 42 96 7.5 81
Show 02565-8109 UC 892 183 8.9 89
Show 02312-7822 HDS 328 76 1.5 91
Show 02437-7807 HJ 3539 65 7.8 100
Show 02505-7754 UC 825 259 43.9 116
Show 02331-7738 BVD 25 AB 272 40.7 133
Show 02249-7745 HJ 3508 103 16.5 133
Show 02571-7735 TDS2396 101 2.7 139
Show 02227-8229 HJ 3519 129 31.1 168
Show 02338-7650 JSP 41 127 0.7 180
Show 02509-7639 JSP 44 AB 33 0.2 190
Show 02509-7639 JSP 44 AC 10 36.7 190
Show 02509-7639 JSP 44 CD 269 4.5 190
Show 02379-8320 KPP 947 64 7.8 213
Show 02511-7600 JSP 43 268 1.4 229
Show 02423-8341 UC 783 87 55.0 235
Show 02333-7554 HJ 3522 AB 285 40.8 236
Show 02333-7554 DAW 185 BC 351 9.4 236
Show 02508-7540 KPP2398 209 20.7 249
Show 02332-7535 JSP 40 169 2.3 254
Show 02480-8413 HJ 3560 243 11.3 267
Show 02462-8417 TOK 650 273 5.5 271
Show 02313-7458 TDS2274 65 0.5 292
Show 02380-7448 KPP 602 95 5.5 300

 
 
WDS 02426-7947 : COMPONENTS
 
 
  A
B pa=159.5°
sep=0.32"
 
 
02426-7947 A
 
 
Componente originario normalizzato AB Name HD 17742 Coord arcsec 2000 024235.59-794702.8 Mag 9.43
Spectral class G9IV/V (yellow) PmRA 94.00 PmDE 109.0 HIP 12654
Tycho2 9370-00981-1 HD 17742 CP CP-80 58
Tycho2
Tycho2 9370-00981-1 Pflag RAmdeg 40.64841849 DEmdeg -79.78414765
PmRA 104.9 PmDE 93.9 E RAmdeg 14 E DEmdeg 16
E pmRA 1.7 E pmDE 1.8 EpRAm 1990.74 EpDEm 1990.43
Num 7 Q RAmdeg 1.2 Q DEmdeg 1.6 Q pmRA 1.2
Q pmDE 1.6 BTmag 10.463 E BTmag 0.032 VTmag 9.524
E VTmag 0.021 Prox 875 TYC T HIP 12654
CCDM RAdeg 40.64706972 DEdeg -79.78436444 EpRA 1990 1.81
EpDE 1990 1.65 E RAdeg 14.3 E DEdeg 16.0 Posflg
Corr 0.0
Hipparcos
Catalog H HIP 12654 Proxy RAhms 02 42 35.29
DEdms -79 47 03.8 Vmag 9.44 VarFlag R Vmag H
RAdeg 40.647 DEdeg -79.7844 AstroRef Plx 16.85
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 17742 BD
CD CP CP-80 58 Dm number -80 58 VIred 0.84
SpType G8/K0IV/V R SpType Coord arcsec 2000 024235.29-794703.8
Hipparcos 2
HIP 12654 Sn 5 So 0 Nc 1
RArad 0.7094245058 DErad -1.3925001103 Plx 16.99 PmRA 94.07
PmDE 108.54 E RArad 0.73 E DErad 0.66 E Plx 0.74
E pmRA 0.83 E pmDE 0.87 Hpmag 9.5825 E Hpmag 0.0032
SHp 0.023 VA 0 BV 0.838 E BV 0.03
VI 0.86
 
 
02426-7947 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 024235.63-794703.1 Mag 11 Calc delta mag 1.57
Calc coord yes