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Doubles in session


Current system
20417-7521
DUN 232
Mu2 Oct


Nearby doubles
23' : 20365-7532
TDT2415

36' : 20352-7550
LDS 713

40' : 20522-7519
HJ 5214

54' : 20551-7538
WIS 344

55' : 20280-7506
TDT2301

60' : 20563-7500
UC 4337

75' : 21014-7525
HJ 5230

81' : 20525-7412
TDT2596

90' : 20366-7354
TDT2418

92' : 20361-7651
KPP1878

94' : 20381-7654
HJ 5199

105' : 20328-7701
JSP 814

107' : 20318-7343
TDT2340

117' : 20319-7712
HJ 5186

126' : 20533-7720
LDS 723

128' : 21007-7338
HEI 590

142' : 20442-7301
HEI 280

145' : 20300-7739
HDS2931

148' : 20390-7254
TDT2452

152' : 20541-7747
TDT2617

155' : 20536-7750
HDS2977AB

159' : 20442-7759
HDS2951

160' : 20442-7800
UC 4275

160' : 20375-7800
TDT2432

162' : 20548-7248
TOI2193

174' : 20308-7811
UC 4203



Selections
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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.

20417-7521 DUN 232 (Mu2 Oct)

 
 
20h 41m 44.10s -75° 21' 02.9" P.A. 19.00 sep 16.6 mag 6.51,7.07 Sp G5III dist. 44.27 pc (144.41 l.y.)
 
 
Coord 2000 20417-7521 Discov num DUN 232 Comp Coord arcsec 2000 20 41 44.10 -75 21 02.9
Date first 1826 Date last 2016 Obs 39
Pa first 14 Pa last 19.2 P.A. Now (θ) 19.2°
Sep first 18.5 Sep last 16.622 Sep. Now (ρ) 16.622"
Mag pri 6.51 Mag sec 7.07 delta mag (ΔM) 0.56 Spectral class G5III (yellow)
Pri motion ra +156 Sec motion ra +164
Pri motion dec -162 Sec motion dec -171
Notes N T (See Notes, Parallax indicates physical)
rPM=0.051 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Mu2 Oct Constellation Octans SAO 257836 HIP 102125
Tycho2 9461-01987-1 Gaia DR2 6369544118965772416 HD 196067 HR 7864
GC 28727 CD CD-75 1173 CP CP-75 1644 Bayer Mu 2 Octantis
Bayer name Mu2 Oct Distance 44.27 Distance ly 144.41 Bayer greek μ2 Oct
 
 
WDS 20417-7521 DUN 232 (Mu2 Oct) : NOTES
 
 
discov_num notes refcode
DUN 232 mu 2 Oct
A is exoplanet host P=4100d Tok2014d
 
 
REFERENCES
 
 
refcode metd author reference
Tok2014d E2 - Tokovinin, A. 2014AJ....147...86T
Tok2014d AJ 147, 86, 2014
 
 
DISCOVERER
 
 
idgroup discov author
1 DUN Dunlop, J.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20417-7521 DUN 232 2002 34 20 16.8 6.51 7.07 G5III NZD 204144.10-752102.9
20417-7521 DUN 232 2008 35 19 16.7 6.51 7.07 G5III NZD 204144.10-752102.9
20417-7521 DUN 232 2010 37 19 16.4 6.51 7.07 G5III NZ 204144.10-752102.9
20417-7521 DUN 232 2015 38 19 16.6 6.51 7.07 G5III NZ 204144.10-752102.9
20417-7521 DUN 232 2016 39 19 16.6 6.51 7.07 G5III NT 204144.10-752102.9

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

 
 
WDS 20417-7521 DUN 232 (Mu2 Oct) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20417-7521 DUN 232 (Mu2 Oct) : MEASURES
 
 
No records found.

 
 
WDS 20417-7521 (Mu2 Oct) : VIRTUAL EYEPIECE
 
 

20417-7521 DUN 232A mag 6.51 Sp G5III 20417-7521 DUN 232B sep 15.8 P.A. 5.00 mag 7.07 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 20417-7521 (Mu2 Oct) : ALADIN DSS IMAGE @ 20h 41m 44.10s -75° 21' 02.9"
 
 
 
 
WDS 20417-7521 DUN 232 (Mu2 Oct) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20417-7521 DUN 232 distance=0' 20365-7532 TDT2415 distance=23' 20352-7550 LDS 713 distance=36' 20522-7519 HJ 5214 distance=40' 20311-7508 TDT2334Aa,Ab distance=43' 20551-7538 WIS 344 distance=54' 20280-7506 TDT2301 distance=55' 20563-7500 UC 4337 distance=60' 21014-7525 HJ 5230 distance=75' 20525-7412 TDT2596 distance=81' 20366-7354 TDT2418 distance=90' 20361-7651 KPP1878 distance=92' 20381-7654 HJ 5199 distance=94' 20328-7701 JSP 814 distance=105' 20318-7343 TDT2340 distance=107' 20319-7712 HJ 5186 distance=117' 20533-7720 LDS 723 distance=126' 21007-7338 HEI 590 distance=128' 20442-7301 HEI 280 distance=142' 20300-7739 HDS2931 distance=145' 20390-7254 TDT2452 distance=148' 20541-7747 TDT2617 distance=152' 20536-7750 HDS2977AB distance=155' 20442-7759 HDS2951 distance=159' 20442-7800 UC 4275 distance=160' 20375-7800 TDT2432 distance=160' 20548-7248 TOI2193 distance=162' 20308-7811 UC 4203 distance=174' 20451-7226 RSS 553 distance=176' 20315-7228 TDT2337 distance=178' 20567-7811 UC 4339 distance=178' 20593-7811 UC 4350AB distance=181' 20434-7218 TDT2498 distance=184' 20338-7212 UC 4216 distance=193' 20578-7217 B 1389 distance=196' 20452-7159 HEI 281 distance=203' 20429-7151 TDT2494 distance=210' 20425-7856 UC 4264 distance=215' 20482-7857 UC 4294 distance=218' 20264-7857 TDT2270 distance=222' 20269-7901 UC 4187 distance=226' 20299-7138 FIN 279 distance=229' 21008-7906 KPP 705 distance=234' 20299-7131 TDT2324 distance=236' 20330-7119 I 1047AB distance=245' 20330-7119 HJ 5544AC distance=245' 20330-7119 I 1047CD distance=246' 21015-7128 UC 4362 distance=248' 20373-7938 SPM 39 distance=258' 20366-7104 DUN 231 distance=258' 20224-7112 HEI 404 distance=263' 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 20417-7521 DUN 232 19 16.6
Show 20365-7532 TDT2415 343 0.7 23
Show 20352-7550 LDS 713 230 80.3 36
Show 20522-7519 HJ 5214 304 13.5 40
Show 20311-7508 TDT2334 Aa,Ab 180 0.4 43
Show 20551-7538 WIS 344 111 484.9 54
Show 20280-7506 TDT2301 351 2.0 55
Show 20563-7500 UC 4337 203 79.7 60
Show 21014-7525 HJ 5230 163 15.5 75
Show 20525-7412 TDT2596 164 0.8 81
Show 20366-7354 TDT2418 336 0.4 90
Show 20361-7651 KPP1878 243 14.6 92
Show 20381-7654 HJ 5199 211 26.8 94
Show 20328-7701 JSP 814 299 3.3 105
Show 20318-7343 TDT2340 340 0.5 107
Show 20319-7712 HJ 5186 94 7.8 117
Show 20533-7720 LDS 723 163 27.8 126
Show 21007-7338 HEI 590 257 0.4 128
Show 20442-7301 HEI 280 104 0.8 142
Show 20300-7739 HDS2931 97 0.1 145
Show 20390-7254 TDT2452 215 0.7 148
Show 20541-7747 TDT2617 32 0.8 152
Show 20536-7750 HDS2977 AB 296 0.1 155
Show 20442-7759 HDS2951 332 0.0 159
Show 20442-7800 UC 4275 95 7.5 160
Show 20375-7800 TDT2432 221 3.7 160
Show 20548-7248 TOI2193 124 1.9 162
Show 20308-7811 UC 4203 307 21.5 174
Show 20451-7226 RSS 553 304 18.3 176
Show 20315-7228 TDT2337 100 0.5 178
Show 20567-7811 UC 4339 162 9.9 178
Show 20593-7811 UC 4350 AB 51 16.8 181
Show 20434-7218 TDT2498 13 0.8 184
Show 20338-7212 UC 4216 279 18.6 193
Show 20578-7217 B 1389 28 3.2 196
Show 20452-7159 HEI 281 89 2.6 203
Show 20429-7151 TDT2494 3 0.5 210
Show 20425-7856 UC 4264 73 42.0 215
Show 20482-7857 UC 4294 309 25.4 218
Show 20264-7857 TDT2270 281 0.8 222
Show 20269-7901 UC 4187 105 30.7 226
Show 20299-7138 FIN 279 77 0.9 229
Show 21008-7906 KPP 705 351 6.2 234
Show 20299-7131 TDT2324 107 0.7 236
Show 20330-7119 I 1047 AB 331 6.2 245
Show 20330-7119 HJ 5544 AC 62 118.7 245
Show 20330-7119 I 1047 CD 55 22.8 246
Show 21015-7128 UC 4362 243 29.9 248
Show 20373-7938 SPM 39 81 18.3 258
Show 20366-7104 DUN 231 285 48.8 258
Show 20224-7112 HEI 404 351 0.6 263

 
 
WDS 20417-7521 : COMPONENTS
 
 
  A
B pa=5.0°
sep=15.76"
 
 
20417-7521 A
 
 
Componente originario normalizzato AB Name Mu2 Oct Coord arcsec 2000 204144.10-752102.9 Mag 6.51
Spectral class G5III (yellow) PmRA 156.00 PmDE -162.0 SAO 257836
HIP 102125 Tycho2 9461-01987-1 HD 196067 HR 7864
GC 28727 CD CD-75 1173 CP CP-75 1644 Bayer Mu 2
Bayer name Mu2
Tycho2
Tycho2 9461-01987-1 Pflag RAmdeg 310.43375883 DEmdeg -75.35080520
PmRA 155.7 PmDE -161.7 E RAmdeg 4 E DEmdeg 4
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.51 EpDEm 1991.47
Num 13 Q RAmdeg 0.8 Q DEmdeg 0.8 Q pmRA 0.7
Q pmDE 0.8 BTmag 7.193 E BTmag 0.015 VTmag 6.510
E VTmag 0.010 Prox 168 TYC T HIP 102125
CCDM A RAdeg 310.43235278 DEdeg -75.35043056 EpRA 1990 1.78
EpDE 1990 1.66 E RAdeg 3.6 E DEdeg 3.7 Posflg
Corr 0.2
SAO
SAO 257836 DelFlag RA1950 PmRA1950 0.0397
DE1950 PmDE1950 -0.15 Vmag 7.1 SpType G5
Double code Source 70 CatNum 28727 DM CP-75 1644
DMcomp A BDsup HD 196067 M HD 0
GC 28727 RA1950rad 5.39235145 DE1950rad -1.3181826 PmRA2000 0.0371
PmDE2000 -0.15
Hipparcos
Catalog H HIP 102125 Proxy RAhms 20 41 43.74
DEdms -75 21 01.5 Vmag 6.51 VarFlag R Vmag G
RAdeg 310.432 DEdeg -75.3504 AstroRef A Plx 22.95
CCDM 20417-7521 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual B M HIP
Theta Rho HD 196067 BD
CD CD-75 1173 CP CP-75 1644 Dm number -75 1173 VIred 0.62
SpType G1V R SpType Coord arcsec 2000 204143.74-752101.5
Hipparcos 2
HIP 102125 Sn 95 So 3 Nc 1
RArad 5.4180650919 DErad -1.3151127706 Plx 22.59 PmRA 149.53
PmDE -158.45 E RArad 1.81 E DErad 1.99 E Plx 2.62
E pmRA 2.28 E pmDE 2.47 Hpmag 6.5957 E Hpmag 0.0238
SHp 0.124 VA 0 BV 0.62 E BV 0.015
VI 0.62
CCDM
Ccdm 20417-7521 RComp Comp A Note1
Note2 Discov num DRAs 1.79 DDEs -1.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.1 Sp G5 PmNote *
PmRA 150 PmDE -150 Dm number -75 1644 Cat1 CPD
Name2 257836 Cat2 SAO HD 196067 M HD
ADS BDS M ADS BDS N IDS IDS 20298S7542A
HIC 102125
 
 
20417-7521 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204144.46-752047.2 Mag 7.07 PmRA 164.00
PmDE -171.0 SAO 257837 HIP 102128 Tycho2 9461-01986-1
HD 196068 GC 28728 CD CD-75 1174 Calc delta mag 0.56
Calc coord yes
Tycho2
Tycho2 9461-01986-1 Pflag RAmdeg 310.43967010 DEmdeg -75.34639648
PmRA 164.8 PmDE -172.0 E RAmdeg 4 E DEmdeg 4
E pmRA 3.6 E pmDE 3.4 EpRAm 1991.76 EpDEm 1991.65
Num 3 Q RAmdeg 1.8 Q DEmdeg 0.8 Q pmRA 1.8
Q pmDE 0.6 BTmag 7.790 E BTmag 0.015 VTmag 7.070
E VTmag 0.010 Prox 168 TYC T HIP 102128
CCDM B RAdeg 310.43818139 DEdeg -75.34599861 EpRA 1990 1.77
EpDE 1990 1.67 E RAdeg 4.0 E DEdeg 4.1 Posflg
Corr 0.2
SAO
SAO 257837 DelFlag RA1950 PmRA1950 0.0455
DE1950 PmDE1950 -0.164 Vmag 7.6 SpType G5
Double code Source 70 CatNum 28728 DM CP-75 1644
DMcomp B BDsup HD 196068 M HD 0
GC 28728 RA1950rad 5.392468 DE1950rad -1.31810328 PmRA2000 0.0429
PmDE2000 -0.164
Hipparcos
Catalog H HIP 102128 Proxy RAhms 20 41 45.14
DEdms -75 20 45.5 Vmag 7.18 VarFlag R Vmag G
RAdeg 310.438 DEdeg -75.346 AstroRef B Plx 25.35
CCDM 20417-7521 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source I Qual B M HIP
Theta Rho HD 196068 BD
CD CD-75 1174 CP Dm number -75 1174 VIred 0.7
SpType G5V R SpType Coord arcsec 2000 204145.14-752045.5
Hipparcos 2
HIP 102128 Sn 95 So 3 Nc 1
RArad 5.4181665166 DErad -1.3150354935 Plx 20.6 PmRA 145.93
PmDE -158.01 E RArad 4.05 E DErad 4.43 E Plx 6.21
E pmRA 5.52 E pmDE 5.64 Hpmag 7.3001 E Hpmag 0.0388
SHp 0 VA 0 BV 0.64 E BV 0.015
VI 0.7
CCDM
Ccdm 20417-7521 RComp Comp B Note1
Note2 Discov num DUN 232 DRAs 3.20 DDEs 13.9
R dRAs 91 Year 1826 Theta 017 Rho 17.4
Obs 13 Vmag 7.6 Sp G5 PmNote *
PmRA 158 PmDE -164 Dm number Cat1
Name2 257837 Cat2 SAO HD 196068 M HD
ADS BDS M ADS BDS N IDS IDS 20298S7542B
HIC 102128