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Doubles in session


Current system
22259-7501
DUN 238 AB
HD 212168


Nearby doubles
2' : 22255-7502
UC 4741

23' : 22307-7514
SLN 93

42' : 22300-7539
UC 4754

43' : 22148-7500
I 339

49' : 22350-7428
JSP 835

56' : 22184-7549
UC 4713

70' : 22345-7602
HDS3202

71' : 22198-7607
HDS3164

72' : 22308-7352
HJ 5336

76' : 22345-7353
HJ 5339

83' : 22133-7356
I 678

103' : 22190-7641
HJ 5321

105' : 22442-7620
TDT3680

108' : 22148-7323
UC 4693

111' : 22419-7332
TDT3659

118' : 22325-7306
UC 4763

134' : 22237-7248
HJ 5325AB

136' : 22140-7255
TDT3417

139' : 22368-7250
UC 4778

153' : 22178-7731
KPP4269

163' : 22275-7743
MUG 18

166' : 22246-7215
FIN 285

175' : 22059-7743
HJ 5310

181' : 22114-7211
TDS1163

188' : 22429-7208
FIN 286

192' : 22397-7806
HDS3218



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.

22259-7501 DUN 238 AB (HD 212168)

 
 
22h 25m 51.16s -75° 00' 56.5" P.A. 78.00 sep 21.5 mag 6.19,8.85 Sp G3V dist. 23.05 pc (75.19 l.y.)
 
 
Coord 2000 22259-7501 Discov num DUN 238 Comp AB Coord arcsec 2000 22 25 51.16 -75 00 56.5
Date first 1826 Date last 2015 Obs 23
Pa first 90 Pa last 78.3 P.A. Now (θ) 78.3°
Sep first 14.0 Sep last 21.475 Sep. Now (ρ) 21.475"
Mag pri 6.19 Mag sec 8.85 delta mag (ΔM) 2.66 Spectral class G3V (yellow)
Pri motion ra +058 Sec motion ra +068
Pri motion dec +012 Sec motion dec +009
Notes N V Z (See Notes, Proper motion indicates physical, Parallax indicates components are physical)
rPM=0.152 (< 0.3, Physical double)
This double is physical.
 
 
22259-7501 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 212168 258036 22 25 51 -75 00 56 DUN 238 AB 2015 23 78 21.5 6.19 8.85 2.66 <===
Show 258036 22 25 51 -75 00 56 KO 5 AC 2016 8 129 264.8 6.19 13.00 6.81
Show 22 25 56 -75 00 53 TOK 434 Ba,Bb 2021 8 56 0.3 9.10 11.00 1.90 Y
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 212168 Constellation Octans SAO 258036 HIP 110712
Tycho2 9475-02322-1 Gaia DR2 6357835694518769408 HD 212168 HR 8526
GC 31308 CP CP-75 1748 FK5 3789 Distance 23.05
Distance ly 75.19
 
 
WDS 22259-7501 DUN 238 AB (HD 212168) : NOTES
 
 
discov_num notes refcode
DUN 238 AB + KO 5AC + TOK 434Ba,Bb: HIP 110712 and 110719 form the 20".6
pair DUN 238 AB. We observed both components. The A component has a
variable RV according to the GCS, but not confirmed by Jones et al.
(2002); it was unresolved. The newly found pair Ba,Bb has a period on CPS2002b
the order of 10yr. Considering the distant companion Cab2012
C found by Caballero (2012), the system contains at least 4 stars. Tok2015c
 
 
REFERENCES
 
 
refcode metd author reference
Cab2012 E+ - Caballero, J.A. 2012Obs...132....1C
Cab2012 +Pa Observatory 132, 1, 2012
CPS2002b not - Jones, H.R.A., Butler, R.P., Marcy, G.W., Tinney, C.G., Penny, A.J., McCarthy, C., 2002MNRAS.337.1170J
CPS2002b & Carter, B.D.
CPS2002b MNRAS 337, 1170, 2002
Tok2015c orb+j Tokovinin, A., Mason, B.D., Hartkopf, W.I., Mendez, R.A., & Horch, E.P. 2015AJ....150...50T
Tok2015c +St AJ 150, 50, 2015 (some measures corrected in Tok2017b) 2017AJ....154..110T
 
 
DISCOVERER
 
 
idgroup discov author
1 DUN Dunlop, J.
3 KO Koenigstuhl (Max Planck Institute) (see papers by Caballero)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
22259-7501 DUN 238 AB 1999 18 80 20.8 6.19 8.85 G3V VD 222551.16-750056.5
22259-7501 DUN 238 AB 2010 21 80 20.8 6.19 8.85 G3V VD 222551.16-750056.5
22259-7501 DUN 238 AB 2015 22 79 20.9 6.19 8.85 G3V NV Z 222551.16-750056.5

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

 
 
WDS 22259-7501 DUN 238 AB (HD 212168) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 22259-7501 DUN 238 AB (HD 212168) : MEASURES
 
 
No records found.

 
 
WDS 22259-7501 (HD 212168) : VIRTUAL EYEPIECE
 
 

22259-7501 DUN 238A mag 6.19 Sp G3V 22259-7501 TOK 434B sep 20.7 P.A. 79.70 mag 9.1 22259-7501 TOK 434Bb sep 20.8 P.A. 79.20 mag 11 22259-7501 KO 5C sep 174.3 P.A. 162.20 mag 13 Sp M8.5V virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 22259-7501 (HD 212168) : ALADIN DSS IMAGE @ 22h 25m 51.16s -75° 00' 56.5"
 
 
 
 
WDS 22259-7501 DUN 238 AB (HD 212168) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

22259-7501 DUN 238AB distance=0' 22259-7501 TOK 434Ba,Bb distance=1' 22255-7502 UC 4741 distance=2' 22307-7514 SLN 93 distance=23' 22300-7539 UC 4754 distance=42' 22148-7500 I 339 distance=43' 22350-7428 JSP 835 distance=49' 22184-7549 UC 4713 distance=56' 22345-7602 HDS3202 distance=70' 22198-7607 HDS3164 distance=71' 22308-7352 HJ 5336 distance=72' 22345-7353 HJ 5339 distance=76' 22133-7356 I 678 distance=83' 22190-7641 HJ 5321 distance=103' 22442-7620 TDT3680 distance=105' 22148-7323 UC 4693 distance=108' 22419-7332 TDT3659 distance=111' 22325-7306 UC 4763 distance=118' 22237-7248 HJ 5325AB distance=134' 22237-7248 HJ 5325AC distance=134' 22140-7255 TDT3417 distance=136' 22368-7250 UC 4778 distance=139' 22178-7731 KPP4269 distance=153' 22275-7743 MUG 18 distance=163' 22246-7215 FIN 285 distance=166' 22059-7743 HJ 5310 distance=175' 22114-7211 TDS1163 distance=181' 22429-7208 FIN 286 distance=188' 22397-7806 HDS3218 distance=192' 22346-7152 TDT3600 distance=193' 22316-7146 TDT3569 distance=197' 22218-7822 GLI 274AB distance=202' 22218-7822 UC 4723AC distance=202' 22440-7151 LDS 792 distance=203' 22229-7128 FIN 284 distance=213' 22397-7125 KPP1067 distance=225' 22401-7120 TDT3644 distance=230' 22295-7858 UC 4751 distance=238' 22090-7102 UC 4663 distance=250' 22253-7012 KPP3062 distance=290' 22114-7955 UC 4672 distance=298' 22456-7952 HJ 5353AB distance=298' 22456-7952 HJ 5353AC distance=298' 22456-7952 DAW9012AD distance=298' 22456-7952 HJ 5353BC distance=298' 22101-7011 LDS 773 distance=299' 22066-7001 TVB 322 distance=312' 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 22259-7501 DUN 238 AB 78 21.5
Show 22259-7501 KO 5 AC 129 264.8
Show 22259-7501 TOK 434 Ba,Bb 56 0.3 1
Show 22255-7502 UC 4741 104 25.0 2
Show 22307-7514 SLN 93 195 92.4 23
Show 22300-7539 UC 4754 282 11.5 42
Show 22148-7500 I 339 177 2.3 43
Show 22350-7428 JSP 835 44 1.4 49
Show 22184-7549 UC 4713 343 6.1 56
Show 22345-7602 HDS3202 101 3.8 70
Show 22198-7607 HDS3164 50 0.6 71
Show 22308-7352 HJ 5336 22 13.3 72
Show 22345-7353 HJ 5339 129 16.8 76
Show 22133-7356 I 678 88 2.1 83
Show 22190-7641 HJ 5321 99 6.1 103
Show 22442-7620 TDT3680 145 0.6 105
Show 22148-7323 UC 4693 99 9.2 108
Show 22419-7332 TDT3659 300 0.7 111
Show 22325-7306 UC 4763 184 9.1 118
Show 22237-7248 HJ 5325 AB 268 19.0 134
Show 22237-7248 HJ 5325 AC 97 32.2 134
Show 22140-7255 TDT3417 163 0.5 136
Show 22368-7250 UC 4778 10 27.2 139
Show 22178-7731 KPP4269 301 7.4 153
Show 22275-7743 MUG 18 276 4.4 163
Show 22246-7215 FIN 285 4 0.0 166
Show 22059-7743 HJ 5310 238 8.4 175
Show 22114-7211 TDS1163 337 0.9 181
Show 22429-7208 FIN 286 248 0.2 188
Show 22397-7806 HDS3218 206 0.2 192
Show 22346-7152 TDT3600 280 0.7 193
Show 22316-7146 TDT3569 46 1.8 197
Show 22218-7822 GLI 274 AB 124 5.1 202
Show 22218-7822 UC 4723 AC 36 47.6 202
Show 22440-7151 LDS 792 314 272.9 203
Show 22229-7128 FIN 284 109 3.3 213
Show 22397-7125 KPP1067 144 8.5 225
Show 22401-7120 TDT3644 147 0.5 230
Show 22295-7858 UC 4751 232 55.8 238
Show 22090-7102 UC 4663 253 101.6 250
Show 22253-7012 KPP3062 149 1.4 290
Show 22114-7955 UC 4672 66 12.7 298
Show 22456-7952 HJ 5353 AB 175 19.7 298
Show 22456-7952 HJ 5353 AC 236 33.7 298
Show 22456-7952 DAW9012 AD 99 32.1 298
Show 22456-7952 HJ 5353 BC 271 29.4 298
Show 22101-7011 LDS 773 87 48.3 299
Show 22066-7001 TVB 322 225 1.5 312

 
 
WDS 22259-7501 : COMPONENTS
 
 
  A B Bb
B pa=79.7°
sep=20.66"
 
Bb pa=79.2°
sep=20.77"
pa=20.6°
sep=0.21"
 
C pa=162.2°
sep=174.28"
pa=169.0°
sep=172.82"
pa=169.0°
sep=173.00"
 
 
22259-7501 A
 
 
Name HD 212168 Coord arcsec 2000 222551.16-750056.5 Mag 6.19 Spectral class G3V (yellow)
PmRA 58.00 PmDE 12.0 SAO 258036 HIP 110712
Tycho2 9475-02322-1 HD 212168 HR 8526 GC 31308
CP CP-75 1748 FK5 3789
Tycho2
Tycho2 9475-02322-1 Pflag RAmdeg 336.46317120 DEmdeg -75.01569264
PmRA 60.3 PmDE 11.6 E RAmdeg 4 E DEmdeg 4
E pmRA 1.4 E pmDE 1.3 EpRAm 1991.51 EpDEm 1991.48
Num 12 Q RAmdeg 1.5 Q DEmdeg 0.8 Q pmRA 1.5
Q pmDE 0.7 BTmag 6.839 E BTmag 0.015 VTmag 6.187
E VTmag 0.010 Prox 206 TYC T HIP 110712
CCDM A RAdeg 336.46263667 DEdeg -75.01571917 EpRA 1990 1.75
EpDE 1990 1.73 E RAdeg 3.6 E DEdeg 3.6 Posflg
Corr 0.1
SAO
SAO 258036 DelFlag RA1950 PmRA1950 0.0155
DE1950 PmDE1950 0.026 Vmag 6.2 SpType G0
Double code Source 70 CatNum 31308 DM CP-75 1748
DMcomp BDsup HD 212168 M HD 0
GC 31308 RA1950rad 5.85368089 DE1950rad -1.31370798 PmRA2000 0.0128
PmDE2000 0.024
Hipparcos
Catalog H HIP 110712 Proxy RAhms 22 25 51.03
DEdms -75 00 56.6 Vmag 6.12 VarFlag R Vmag G
RAdeg 336.463 DEdeg -75.0157 AstroRef A Plx 43.39
CCDM 22259-7501 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual A M HIP
Theta Rho HD 212168 BD
CD CP CP-75 1748 Dm number -75 1748 VIred 0.68
SpType G3IV R SpType Coord arcsec 2000 222551.03-750056.6
Hipparcos 2
HIP 110712 Sn 95 So 3 Nc 1
RArad 5.8723803031 DErad -1.3092712917 Plx 43.39 PmRA 57.79
PmDE 12.25 E RArad 0.43 E DErad 0.38 E Plx 0.5
E pmRA 0.5 E pmDE 0.39 Hpmag 6.2454 E Hpmag 0.0103
SHp 0.018 VA 0 BV 0.599 E BV 0.002
VI 0.68
CCDM
Ccdm 22259-7501 RComp Comp A Note1
Note2 Discov num DRAs -3.03 DDEs 3.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.2 Sp G0 PmNote *
PmRA 62 PmDE 20 Dm number -75 1748 Cat1 CPD
Name2 258036 Cat2 SAO HD 212168 M HD
ADS BDS M ADS BDS N IDS IDS 22171S7531A
HIC 110712
 
 
22259-7501 B
 
 
Coord arcsec 2000 222556.40-750052.8 Coord calc 222552.56-750052.1 Mag 9.1 Mag composta 8.85
PmRA 69.00 PmDE 14.0 Calc delta mag 2.91
 
 
22259-7501 Bb
 
 
Coord arcsec 2000 222556.42-750052.6 Mag 11 Calc delta mag 4.81 Calc coord yes
 
 
22259-7501 C
 
 
Coord arcsec 2000 222604.92-750342.4 Mag 13 Spectral class M8.5V (red) PmRA 53.00
PmDE 7.0 Calc delta mag 6.81 Calc coord yes