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Doubles in session


Current system
21084-7559
I 257
HD 200220


Nearby doubles
34' : 21092-7525
TDT2788

35' : 21150-7534
JSP 823

41' : 21142-7633
TSN 196

43' : 21014-7525
HJ 5230

52' : 21051-7649
UC 4374

54' : 20551-7538
WIS 344

73' : 20522-7519
HJ 5214

74' : 20563-7500
UC 4337

78' : 21082-7716
TDT2777

85' : 21212-7710
KPP1119

92' : 21176-7434
UC 4432

94' : 21062-7426
UC 4380

97' : 20533-7720
LDS 723

99' : 21182-7732
TOI1101AB

111' : 21217-7420
B 2493

119' : 20541-7747
TDT2617

123' : 20536-7750
HDS2977AB

123' : 20525-7412
TDT2596

127' : 21089-7353
GLI 268

127' : 21042-7353
UC 4370

136' : 20593-7811
UC 4350AB

139' : 20567-7811
UC 4339

142' : 21086-7337
HEI 591

144' : 21007-7338
HEI 590

158' : 21265-7338
DEA 16

158' : 21211-7831
UC 4454



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.

21084-7559 I 257 (HD 200220)

 
 
21h 08m 23.90s -75° 58' 48.5" P.A. 313.00 sep 1.9 mag 8.40,8.75 Sp F8V dist. 80.19 pc (261.58 l.y.)
 
 
Coord 2000 21084-7559 Discov num I   257 Comp Coord arcsec 2000 21 08 23.90 -75 58 48.5
Date first 1897 Date last 2016 Obs 13
Pa first 300 Pa last 312.5 P.A. Now (θ) 312.5°
Sep first 1.2 Sep last 1.86 Sep. Now (ρ) 1.86"
Mag pri 8.40 Mag sec 8.75 delta mag (ΔM) 0.35 Spectral class F8V (yellow-white)
Pri motion ra +077 Sec motion ra +077
Pri motion dec -080 Sec motion dec -080
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 200220 Constellation Octans SAO 257885 HIP 104349
Tycho2 9461-00823-1 Gaia DR2 6368935741142193536 HD 200220 GC 29443
CP CP-76 1472 Distance 80.19 Distance ly 261.58
 
 
WDS 21084-7559 I 257 (HD 200220) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
I__1895 Ma - Innes, R.T.A. 1895MNRAS..55..312I
I__1895 +Mb MNRAS 55, 312,544, 1895
I__1896 Mb - Innes, R.T.A. 1896JBAA....6..261I
I__1896 J. British Astron. Assoc. 6, 261, 1896
I__1897a Ma - Innes, R.T.A. 1897MNRAS..57..533I
I__1897a MNRAS 57, 533, 1897 (data also in I__1897b, 1897AN....143..171I
I__1897a I__1897c) 1897AN....144...89I
I__1897b Ma - Innes, R.T.A. 1897AN....143..171I
I__1897b AN 143, 171, 1897
I__1897c Ma - Innes, R.T.A. 1897AN....144...89I
I__1897c AN 144, 89, 1897
I__1897d Ma - Innes, R.T.A. 1897AN....145...93I
I__1897d AN 145, 93, 1897
I__1897e Ma - Innes, R.T.A. 1897MNRAS..57..456I
I__1897e +Mb MNRAS 57, 456, 1897
I__1897f Ma - Innes, R.T.A. 1897MNRAS..58...48I
I__1897f MNRAS 58, 48, 1897
I__1897g Ma - Innes, R.T.A. 1897AJ.....18...65I
I__1897g AJ 18, 65, 1897
I__1898 Ma - Innes, R.T.A. 1898AN....146..369I
I__1898 AN 146, 369, 1898
I__1899 Ma - Innes, R.T.A. 1899QB4.C22v2......
I__1899 Ann. Cape Obs. 2, Pt.2, 1899 (Innes Reference Catalog)
I__1901 Ma - Innes, R.T.A. 1901MNRAS..61..575.
I__1901 MNRAS 61, 575, 1901 (data also in I__1905) 1905AnCap...2....4I
I__1902a Ma - Innes, R.T.A. 1902MNRAS..62..470I
I__1902a MNRAS 62, 470, 1902 (data also in I__1905) 1905AnCap...2....4I
I__1902b Ma - Innes, R.T.A. 1902MNRAS..63...76I
I__1902b MNRAS 63, 76, 1902 (some data also in I__1905) 1905AnCap...2....4I
I__1903 - Innes, R.T.A. 1903MNRAS..64..130I
I__1903 MNRAS 64, 130, 1903 (data also in I__1905) 1905AnCap...2....4I
I__1903b Ma - Innes, R.T.A. 1903Obs....26..285I
I__1903b Obs 26, 285, 1903 (some data also in I__1905) 1905AnCap...2....4I
I__1905 Ma - Innes, R.T.A. 1905AnCap...2....4I
I__1905 Ann. Cape Obs. 2, Pt.4, 1905
I__1907 Ma - Innes, R.T.A. 1907Obs....30...61I
I__1907 Obs 30, 61, 1907
I__1908 - Innes, R.T.A. 1908Obs....31..289I
I__1908 Obs 31, 289, 1908 (measures also in I__1909)
I__1909 Ma - Innes, R.T.A. .
I__1909 Transvaal Obs. Circ. 1, 1, 1909
I__1910 Ma - Innes, R.T.A. .
I__1910 Transvaal Obs. Circ. 1, 21, 1910
I__1911 Ma - Innes, R.T.A. .
I__1911 Transvaal Obs. Circ. 1, 61, 1911
I__1912 Ma - Innes, R.T.A. .
I__1912 Transvaal Obs. Circ. 1, 111, 1912
I__1913a Ma - Innes, R.T.A. 1913CiUO....4...31.
I__1913a Union Obs. Johannesburg Circ. 4, 31, 1913
I__1913b Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1913CiUO....4...31.
I__1913b Union Obs. Johannesburg Circ. 4, 31, 1913
I__1914 Ma - Innes, R.T.A. 1914CiUO...14...97.
I__1914 Union Obs. Johannesburg Circ. 14, 97, 1914
I__1915a Ma - Innes, R.T.A. 1915CiUO...24..185.
I__1915a Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915b Ma - Innes, R.T.A. (measure by Cox, G.W.) 1915CiUO...24..185.
I__1915b Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915c Ma - Innes, R.T.A. (measure by Johnson, E.L.) 1915CiUO...24..185.
I__1915c Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915d Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1915CiUO...24..185.
I__1915d Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915e - Innes, R.T.A. 1915Obs....38..221I
I__1915e Obs 38, 221, 1915 (measures also in I__1916) 1916CiUO...33..249I
I__1915f - Innes, R.T.A. 1915Obs....38..333I
I__1915f Obs 38, 333, 1915 (measures also in I__1915) 1915CiUO...24..185I
I__1916a Ma - Innes, R.T.A. 1916CiUO...33..249I
I__1916a Union Obs. Johannesburg Circ. 33, 249, 1916
I__1916b Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1916CiUO...33..249I
I__1916b Union Obs. Johannesburg Circ. 33, 249, 1916
I__1916c Ma - Innes, R.T.A. (measure by van der Spuy, K.) 1916CiUO...33..249I
I__1916c Union Obs. Johannesburg Circ. 33, 249, 1916
I__1917a Ma - Innes, R.T.A. 1917CiUO...37..285I
I__1917a Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917b Ma - Innes, R.T.A. (measure by Johnson, E.L.) 1917CiUO...37..285I
I__1917b Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917c Ma - Innes, R.T.A. (measure by van der Spuy, K.) 1917CiUO...37..285I
I__1917c Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917d Ma - Innes, R.T.A. (measure by Worssell, W.M.) 1917CiUO...37..285I
I__1917d Union Obs. Johannesburg Circ. 37, 285, 1917
I__1918 Ma - Innes, R.T.A. 1918CiUO...41..339I
I__1918 Union Obs. Johannesburg Circ. 41, 339, 1918
I__1927a Ma - Innes, R.T.A. 1927sdsc.book.....I
I__1927a +Po Southern Double Star Cat. 1927
I__1927b Ma - Innes, R.T.A. & van den Bos, W.H. 1927sdsc.book.....I
I__1927b Southern Double Star Cat. 1927
I__1932A Ma - Innes, R.T.A. 1932QB821.A43......
I__1932A cited in ADS (Aitken Double Star Cat.), 1932
I__1948a Ma - Innes, R.T.A. 1948CiUO..106..193I
I__1948a +Po Union Obs. Johannesburg Circ. 106, 193, 1948
I__1948b Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1948CiUO..106..193I
I__1948b Union Obs. Johannesburg Circ. 106, 193, 1948
I__9999 Ma - Innes, R.T.A. ...................
I__9999 +Mb Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21084-7559 I 257 1991 11 308 1.8 8.40 8.75 F8V D 210823.90-755848.5
21084-7559 I 257 2015 12 312 1.9 8.40 8.75 F8V 210823.90-755848.5
21084-7559 I 257 2016 13 313 1.9 8.40 8.75 F8V 210823.90-755848.5

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

 
 
WDS 21084-7559 I 257 (HD 200220) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21084-7559 I 257 (HD 200220) : MEASURES
 
 
No records found.

 
 
WDS 21084-7559 (HD 200220) : VIRTUAL EYEPIECE
 
 

21084-7559 I 257A mag 8.4 Sp F8V 21084-7559 I 257B sep 1.3 P.A. 345.20 mag 8.75 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 21084-7559 (HD 200220) : ALADIN DSS IMAGE @ 21h 08m 23.90s -75° 58' 48.5"
 
 
 
 
WDS 21084-7559 I 257 (HD 200220) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21084-7559 I 257 distance=0' 21092-7525 TDT2788 distance=34' 21150-7534 JSP 823 distance=35' 21142-7633 TSN 196 distance=41' 21014-7525 HJ 5230 distance=43' 21051-7649 UC 4374 distance=52' 20551-7538 WIS 344 distance=54' 20522-7519 HJ 5214 distance=73' 20563-7500 UC 4337 distance=74' 21082-7716 TDT2777 distance=78' 21212-7710 KPP1119 distance=85' 21176-7434 UC 4432 distance=92' 21062-7426 UC 4380 distance=94' 20533-7720 LDS 723 distance=97' 21182-7732 TOI1101AB distance=99' 21217-7420 B 2493 distance=111' 20541-7747 TDT2617 distance=119' 20536-7750 HDS2977AB distance=123' 20525-7412 TDT2596 distance=123' 21089-7353 GLI 268 distance=127' 21042-7353 UC 4370 distance=127' 20593-7811 UC 4350AB distance=136' 20567-7811 UC 4339 distance=139' 21086-7337 HEI 591 distance=142' 21007-7338 HEI 590 distance=144' 21265-7338 DEA 16 distance=158' 21211-7831 UC 4454 distance=158' 21062-7316 HJ 5237 distance=163' 21180-7321 UC 4434 distance=163' 21263-7330 HEI 594 distance=165' 21094-7310 I 379AB distance=169' 21094-7310 HDO 305AB,C distance=169' 21127-7258 FIN 280 distance=182' 21008-7906 KPP 705 distance=189' 20548-7248 TOI2193 distance=199' 20578-7217 B 1389 distance=226' 21222-8007 LDS 736 distance=252' 21208-8008 TDS1124 distance=253' 21253-7148 HJ 5260 distance=261' 21171-8021 I 670 distance=264' 21220-7141 NSN 433 distance=265' 21015-7128 UC 4362 distance=272' 21175-7122 FIN 281 distance=280' 21067-8042 GLI 263 distance=284' 20508-7059 HDS2973 distance=309' 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 21084-7559 I 257 313 1.9
Show 21092-7525 TDT2788 155 2.2 34
Show 21150-7534 JSP 823 185 2.0 35
Show 21142-7633 TSN 196 70 0.8 41
Show 21014-7525 HJ 5230 163 15.5 43
Show 21051-7649 UC 4374 329 49.2 52
Show 20551-7538 WIS 344 111 484.9 54
Show 20522-7519 HJ 5214 304 13.5 73
Show 20563-7500 UC 4337 203 79.7 74
Show 21082-7716 TDT2777 17 1.5 78
Show 21212-7710 KPP1119 277 8.8 85
Show 21176-7434 UC 4432 185 9.0 92
Show 21062-7426 UC 4380 83 72.7 94
Show 20533-7720 LDS 723 163 27.8 97
Show 21182-7732 TOI1101 AB 236 3.6 99
Show 21217-7420 B 2493 160 0.4 111
Show 20541-7747 TDT2617 32 0.8 119
Show 20536-7750 HDS2977 AB 296 0.1 123
Show 20525-7412 TDT2596 164 0.8 123
Show 21089-7353 GLI 268 243 5.6 127
Show 21042-7353 UC 4370 258 10.4 127
Show 20593-7811 UC 4350 AB 51 16.8 136
Show 20567-7811 UC 4339 162 9.9 139
Show 21086-7337 HEI 591 5 0.2 142
Show 21007-7338 HEI 590 257 0.4 144
Show 21265-7338 DEA 16 329 84.9 158
Show 21211-7831 UC 4454 185 75.8 158
Show 21062-7316 HJ 5237 274 5.9 163
Show 21180-7321 UC 4434 207 38.5 163
Show 21263-7330 HEI 594 234 0.7 165
Show 21094-7310 I 379 AB 22 0.1 169
Show 21094-7310 HDO 305 AB,C 118 6.4 169
Show 21127-7258 FIN 280 55 2.5 182
Show 21008-7906 KPP 705 351 6.2 189
Show 20548-7248 TOI2193 124 1.9 199
Show 20578-7217 B 1389 28 3.2 226
Show 21222-8007 LDS 736 2 134.2 252
Show 21208-8008 TDS1124 180 1.3 253
Show 21253-7148 HJ 5260 270 44.4 261
Show 21171-8021 I 670 0.7 264
Show 21220-7141 NSN 433 298 23.5 265
Show 21015-7128 UC 4362 243 29.9 272
Show 21175-7122 FIN 281 265 2.9 280
Show 21067-8042 GLI 263 244 4.8 284
Show 20508-7059 HDS2973 70 0.7 309

 
 
WDS 21084-7559 : COMPONENTS
 
 
  A
B pa=345.2°
sep=1.30"
 
 
21084-7559 A
 
 
Componente originario normalizzato AB Name HD 200220 Coord arcsec 2000 210823.90-755848.5 Mag 8.4
Spectral class F8V (yellow-white) PmRA 77.00 PmDE -80.0 SAO 257885
HIP 104349 Tycho2 9461-00823-1 HD 200220 GC 29443
CP CP-76 1472
Tycho2
Tycho2 9461-00823-1 Pflag P RAmdeg 317.09959069 DEmdeg -75.98013957
PmRA 76.5 PmDE -80.1 E RAmdeg 6 E DEmdeg 6
E pmRA 3.8 E pmDE 3.6 EpRAm 1991.63 EpDEm 1991.61
Num 3 Q RAmdeg 2.3 Q DEmdeg 2.3 Q pmRA 2.3
Q pmDE 2.3 BTmag 9.027 E BTmag 0.017 VTmag 8.402
E VTmag 0.012 Prox 18 TYC T HIP 104349
CCDM A RAdeg 317.09946472 DEdeg -75.98006861 EpRA 1990 1.67
EpDE 1990 1.65 E RAdeg 6.3 E DEdeg 6.2 Posflg D
Corr 0.2
SAO
SAO 257885 DelFlag RA1950 PmRA1950 0.026
DE1950 PmDE1950 -0.083 Vmag 7.9 SpType F8
Double code Source 70 CatNum 29443 DM CP-76 1472
DMcomp BDsup HD 200220 M HD 0
GC 29443 RA1950rad 5.50968262 DE1950rad -1.32960807 PmRA2000 0.0233
PmDE2000 -0.084
Hipparcos
Catalog H HIP 104349 Proxy H RAhms 21 08 23.87
DEdms -75 58 48.2 Vmag 7.78 VarFlag R Vmag G
RAdeg 317.099 DEdeg -75.9801 AstroRef A Plx 10.8
CCDM 21084-7559 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 309 Rho 1.812 HD 200220 BD
CD CP CP-76 1472 Dm number -76 1472 VIred 0.65
SpType F8V R SpType Coord arcsec 2000 210823.87-755848.2
Hipparcos 2
HIP 104349 Sn 15 So 3 Nc 2
RArad 5.5344293334 DErad -1.3261022703 Plx 12.47 PmRA 63.83
PmDE -68.55 E RArad 0.84 E DErad 0.71 E Plx 1.11
E pmRA 1.11 E pmDE 0.87 Hpmag 7.9015 E Hpmag 0.0015
SHp 0.016 VA 0 BV 0.583 E BV 0.015
VI 0.65
CCDM
Ccdm 21084-7559 RComp Comp A Note1
Note2 Discov num DRAs 0.44 DDEs 10.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.5 Sp F8 PmNote *
PmRA 88 PmDE -83 Dm number -76 1472 Cat1 CPD
Name2 257885 Cat2 SAO HD 200220 M HD
ADS BDS M ADS BDS N IDS IDS 20569S7623A
HIC 104349
 
 
21084-7559 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 210823.81-755847.2 Mag 8.75 PmRA 77.00
PmDE -80.0 HIP 104349 Tycho2 9461-00823-2 Calc delta mag 0.35
Calc coord yes
Tycho2
Tycho2 9461-00823-2 Pflag P RAmdeg 317.09959069 DEmdeg -75.98013957
PmRA 76.5 PmDE -80.1 E RAmdeg 6 E DEmdeg 6
E pmRA 3.8 E pmDE 3.6 EpRAm 1991.63 EpDEm 1991.61
Num 3 Q RAmdeg 2.3 Q DEmdeg 2.3 Q pmRA 2.3
Q pmDE 2.3 BTmag 9.355 E BTmag 0.019 VTmag 8.751
E VTmag 0.013 Prox 18 TYC T HIP 104349
CCDM B RAdeg 317.09783000 DEdeg -75.97975750 EpRA 1990 1.66
EpDE 1990 1.65 E RAdeg 8.0 E DEdeg 7.8 Posflg D
Corr 0.2
Hipparcos
Catalog H HIP 104349 Proxy H RAhms 21 08 23.87
DEdms -75 58 48.2 Vmag 7.78 VarFlag R Vmag G
RAdeg 317.099 DEdeg -75.9801 AstroRef A Plx 10.8
CCDM 21084-7559 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 309 Rho 1.812 HD 200220 BD
CD CP CP-76 1472 Dm number -76 1472 VIred 0.65
SpType F8V R SpType Coord arcsec 2000 210823.87-755848.2
Hipparcos 2
HIP 104349 Sn 15 So 3 Nc 2
RArad 5.5344293334 DErad -1.3261022703 Plx 12.47 PmRA 63.83
PmDE -68.55 E RArad 0.84 E DErad 0.71 E Plx 1.11
E pmRA 1.11 E pmDE 0.87 Hpmag 7.9015 E Hpmag 0.0015
SHp 0.016 VA 0 BV 0.583 E BV 0.015
VI 0.65
CCDM
Ccdm 21084-7559 RComp Comp B Note1
Note2 Discov num I 257 DRAs DDEs
R dRAs Year 1932 Theta 300 Rho 1.6
Obs 4 Vmag 8.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20569S7623B
HIC 104349