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Doubles in session


Current system
20206-7904
UC 4152


Nearby doubles
19' : 20264-7857
TDT2270

19' : 20269-7901
UC 4187

19' : 20172-7849
RST3249

30' : 20103-7907
HJ 5153

49' : 20056-7842
RST3244

51' : 20040-7847
HJ 5149

58' : 20373-7938
SPM 39

62' : 20308-7811
UC 4203

63' : 20205-8007
TDT2191

82' : 20375-7800
TDT2432

90' : 20300-7739
HDS2931

110' : 20129-8052
KPP 463

118' : 20319-7712
HJ 5186

119' : 20333-8058
HJ 5182

129' : 20328-7701
JSP 814

133' : 20214-8117
I 1044

142' : 20381-7654
HJ 5199

142' : 20361-7651
KPP1878

158' : 20010-8134
HDS2852AB

160' : 20270-8143
LDS 706

174' : 20327-8155
HJ 5175AB

177' : 20194-7608
RSS 546

202' : 20352-7550
LDS 713

210' : 20245-8233
KPP4194

217' : 20060-7533
TDT1974

219' : 20365-7532
TDT2415



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.

20206-7904 UC 4152

 
 
20h 20m 35.83s -79° 04' 16.6" P.A. 78.00 sep 64.5 mag 8.51,16.22 Sp F7V dist. 98.52 pc (321.37 l.y.)
 
 
Coord 2000 20206-7904 Discov num UC 4152 Comp Coord arcsec 2000 20 20 35.83 -79 04 16.6
Date first 1998 Date last 2015 Obs 4
Pa first 80 Pa last 78.2 P.A. Now (θ) 78.2°
Sep first 64.0 Sep last 64.516 Sep. Now (ρ) 64.516"
Mag pri 8.51 Mag sec 16.22 delta mag (ΔM) 7.71 Spectral class F7V (yellow-white)
Pri motion ra +000 Sec motion ra -010
Pri motion dec -073 Sec motion dec -076
Notes V (Proper motion indicates physical)
rPM=0.136 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Octans SAO 257791 HIP 100303 Tycho2 9468-00963-1
Gaia DR2 6361802625096480640 HD 191631 CP CP-79 1072 Distance 98.52
Distance ly 321.37
 
 
WDS 20206-7904 UC 4152 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
UC USNO CCD Astrographic Catalog (UCAC1, UCAC2, UCAC3, UCAC4) ...................
UC_2013a Eu j Zacharias, N., Finch, C.T., Girard, T.M., Henden, A., Bartlett, J.L., Monet, D.G., 2013AJ....145...44Z
UC_2013a & Zacharias, M.I. (UCAC4 Catalog)
UC_2013a AJ 145, 44, 2013
UC_2013b Eu j Hartkopf, W.I., Mason, B.D., Finch, C.T., Zacharias, N., Wycoff, G.L., & Hsu, D. 2013AJ....146...76H
UC_2013b AJ 146, 76, 2013 (UC 301 - 5058)
UC_2013b (Relative astrometry is derived from individual measurements, not precessed means.
UC_2013b UCAC aperture magnitudes are listed, unless the duplicity flag indicates a blended
UC_2013b image (a flag value of 30 or higher). Model fit magnitudes are given for both
UC_2013b components if either has such a flag. Model fit magnitudes are indicated by the
UC_2013b letter "f" following the filter information.
UC_2013b APASS photometry extracted from UCAC4 catalog is listed under reference AAV2012.
UC_2013b Due to aperture method used, APASS photometry is only included for pairs wider
UC_2013b than 10" (Henden, private comm.) Photometry for pairs wider than 10" which showed
UC_2013b identical values for both components in all filters were removed, as well.
UC_2015 Eu - Zacharias, N., Finch, C.T., Subasavage, J.P., Bredthauer, G., Crockett, C., 2015AJ....150..101Z
UC_2015 DiVittorio, M., Ferguson, E., Harris, F., Harris, H.C., Hendon, A., Kilian, C.,
UC_2015 Munn, J., Rafferty, T., Rhodes, A., Schultheis, M., Tilleman, T., & Wieder, G.
UC_2015 AJ 150, 101, 2015
UC_9999 Eu - temporary UCAC files ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20206-7904 UC 4152 2000 2 79 64.3 9.10 16.20 V 202035.83-790416.6
20206-7904 UC 4152 2010 3 79 64.5 8.51 16.22 F7V V 202035.83-790416.6
20206-7904 UC 4152 2015 4 78 64.5 8.51 16.22 F7V V 202035.83-790416.6

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

 
 
WDS 20206-7904 UC 4152 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20206-7904 UC 4152 : MEASURES
 
 
No records found.

 
 
WDS 20206-7904 : VIRTUAL EYEPIECE
 
 

20206-7904 UC 4152A mag 8.51 Sp F7V 20206-7904 UC 4152B sep 17.8 P.A. 42.20 mag 16.22 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 20206-7904 : ALADIN DSS IMAGE @ 20h 20m 35.83s -79° 04' 16.6"
 
 
 
 
WDS 20206-7904 UC 4152 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20206-7904 UC 4152 distance=0' 20264-7857 TDT2270 distance=19' 20269-7901 UC 4187 distance=19' 20172-7849 RST3249 distance=19' 20103-7907 HJ 5153 distance=30' 20056-7842 RST3244 distance=49' 20040-7847 HJ 5149 distance=51' 20373-7938 SPM 39 distance=58' 20308-7811 UC 4203 distance=62' 20205-8007 TDT2191 distance=63' 20375-7800 TDT2432 distance=82' 20300-7739 HDS2931 distance=90' 20129-8052 KPP 463 distance=110' 20319-7712 HJ 5186 distance=118' 20333-8058 HJ 5182 distance=119' 20328-7701 JSP 814 distance=129' 20214-8117 I 1044 distance=133' 20381-7654 HJ 5199 distance=142' 20361-7651 KPP1878 distance=142' 20010-8134 HDS2852AB distance=158' 20270-8143 LDS 706 distance=160' 20327-8155 HJ 5175AB distance=174' 20327-8155 HJ 5175AC distance=174' 20194-7608 RSS 546 distance=177' 20352-7550 LDS 713 distance=202' 20245-8233 KPP4194 distance=210' 20060-7533 TDT1974 distance=217' 20365-7532 TDT2415 distance=219' 20179-7526 KPP 560 distance=219' 20042-7526 RSS 539 distance=225' 20096-8248 SHY 766 distance=226' 20311-7508 TDT2334Aa,Ab distance=240' 20280-7506 TDT2301 distance=240' 20327-8306 TVB 315 distance=244' 20019-7506 RST3243 distance=246' 20169-7449 I 1045 distance=256' 20077-7435 HJ 5158 distance=273' 20235-8345 UC 4164 distance=282' 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 20206-7904 UC 4152 78 64.5
Show 20264-7857 TDT2270 281 0.8 19
Show 20269-7901 UC 4187 105 30.7 19
Show 20172-7849 RST3249 311 0.4 19
Show 20103-7907 HJ 5153 125 47.2 30
Show 20056-7842 RST3244 265 0.4 49
Show 20040-7847 HJ 5149 148 32.2 51
Show 20373-7938 SPM 39 81 18.3 58
Show 20308-7811 UC 4203 307 21.5 62
Show 20205-8007 TDT2191 240 0.5 63
Show 20375-7800 TDT2432 221 3.7 82
Show 20300-7739 HDS2931 97 0.1 90
Show 20129-8052 KPP 463 207 3.7 110
Show 20319-7712 HJ 5186 94 7.8 118
Show 20333-8058 HJ 5182 25.5 119
Show 20328-7701 JSP 814 299 3.3 129
Show 20214-8117 I 1044 21 0.7 133
Show 20381-7654 HJ 5199 211 26.8 142
Show 20361-7651 KPP1878 243 14.6 142
Show 20010-8134 HDS2852 AB 41 1.9 158
Show 20270-8143 LDS 706 85 226.5 160
Show 20327-8155 HJ 5175 AB 301 10.0 174
Show 20327-8155 HJ 5175 AC 197 12.3 174
Show 20194-7608 RSS 546 127 22.7 177
Show 20352-7550 LDS 713 230 80.3 202
Show 20245-8233 KPP4194 131 2.9 210
Show 20060-7533 TDT1974 118 0.5 217
Show 20365-7532 TDT2415 343 0.7 219
Show 20179-7526 KPP 560 235 5.3 219
Show 20042-7526 RSS 539 274 21.8 225
Show 20096-8248 SHY 766 223 999.9 226
Show 20311-7508 TDT2334 Aa,Ab 180 0.4 240
Show 20280-7506 TDT2301 351 2.0 240
Show 20327-8306 TVB 315 302 4.9 244
Show 20019-7506 RST3243 154 1.0 246
Show 20169-7449 I 1045 289 1.1 256
Show 20077-7435 HJ 5158 145 12.1 273
Show 20235-8345 UC 4164 349 51.3 282

 
 
WDS 20206-7904 : COMPONENTS
 
 
  A
B pa=42.2°
sep=17.82"
 
 
20206-7904 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 202035.83-790416.6 Mag 8.51 Spectral class F7V (yellow-white)
PmRA 0.00 PmDE -73.0 SAO 257791 HIP 100303
Tycho2 9468-00963-1 HD 191631 CP CP-79 1072
Tycho2
Tycho2 9468-00963-1 Pflag RAmdeg 305.14937845 DEmdeg -79.07129280
PmRA 3.3 PmDE -73.5 E RAmdeg 6 E DEmdeg 6
E pmRA 1.3 E pmDE 1.3 EpRAm 1991.10 EpDEm 1991.19
Num 9 Q RAmdeg 0.8 Q DEmdeg 0.3 Q pmRA 0.8
Q pmDE 0.4 BTmag 9.077 E BTmag 0.016 VTmag 8.505
E VTmag 0.012 Prox 999 TYC T HIP 100303
CCDM RAdeg 305.14933889 DEdeg -79.07112472 EpRA 1990 1.70
EpDE 1990 1.77 E RAdeg 6.3 E DEdeg 5.9 Posflg
Corr 0.0
SAO
SAO 257791 DelFlag RA1950 PmRA1950 -0.001
DE1950 PmDE1950 -0.063 Vmag 8.6 SpType G
Double code Source 61 CatNum 4330 DM CP-79 1072
DMcomp BDsup HD 191631 M HD 0
GC RA1950rad 5.29370247 DE1950rad -1.38277088 PmRA2000 -0.0037
PmDE2000 -0.068
Hipparcos
Catalog H HIP 100303 Proxy RAhms 20 20 35.84
DEdms -79 04 16.0 Vmag 8.47 VarFlag R Vmag H
RAdeg 305.149 DEdeg -79.0711 AstroRef Plx 10.02
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 191631 BD
CD CP CP-79 1072 Dm number -79 1072 VIred 0.58
SpType F7V R SpType Coord arcsec 2000 202035.84-790416.0
Hipparcos 2
HIP 100303 Sn 5 So 0 Nc 1
RArad 5.3258602747 DErad -1.3800512975 Plx 10.15 PmRA 3.45
PmDE -72.58 E RArad 0.49 E DErad 0.48 E Plx 0.67
E pmRA 0.58 E pmDE 0.57 Hpmag 8.5788 E Hpmag 0.0018
SHp 0.019 VA 0 BV 0.505 E BV 0.013
VI 0.58
 
 
20206-7904 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202040.04-790403.4 Mag 16.22 PmRA -10.00
PmDE -76.0 Calc delta mag 7.71 Calc coord yes