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Doubles in session


Current system
21081-4520
I 1434
HD 200957


Nearby doubles
14' : 21092-4529
TDT2787

16' : 21081-4505
BVD 133

34' : 21064-4548
HU 1333

52' : 21050-4441
KPP3080

67' : 21045-4615
TOK 35

82' : 21004-4519
HU 1533

82' : 21136-4423
KPP 604

84' : 21017-4431
TOK 800

91' : 21050-4357
UC 4373

91' : 21152-4612
KPP3079

93' : 21008-4429
TDT2693

94' : 21011-4426
HJ 5238

97' : 21048-4650
NSN 454

99' : 21030-4643
SKF1099

107' : 21176-4445
TSN 197

119' : 21172-4410
TDT2884

124' : 21146-4337
CPO 621

124' : 20571-4439
LDS 729

124' : 20568-4452
HDS2984

136' : 20578-4402
DON 995

138' : 21099-4304
UC 4395

142' : 20583-4345
I 1048

145' : 20555-4426
I 1430

150' : 21217-4607
HDS3041

152' : 21146-4737
KPP1790

154' : 21022-4300
DUN 236



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.

21081-4520 I 1434 (HD 200957)

 
 
21h 08m 08.65s -45° 20' 15.3" P.A. 335.00 sep 0.8 mag 10.42,10.79 Sp G2/3IV:
 
 
Coord 2000 21081-4520 Discov num I  1434 Comp Coord arcsec 2000 21 08 08.65 -45 20 15.3
Date first 1926 Date last 2016 Obs 7
Pa first 340 Pa last 334.7 P.A. Now (θ) 334.7°
Sep first 0.7 Sep last 0.77 Sep. Now (ρ) 0.77"
Mag pri 10.42 Mag sec 10.79 delta mag (ΔM) 0.37 Spectral class G2/3IV: (yellow)
Pri motion ra +015 Sec motion ra +015
Pri motion dec -032 Sec motion dec -032
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 200957 Constellation Indus SAO 230542 Tycho2 8421-00987-1
Gaia DR2 6483659883894815744 HD 200957 DM CP-4510096
 
 
WDS 21081-4520 I 1434 (HD 200957) : 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
21081-4520 I 1434 1991 6 338 0.6 10.42 10.79 G2/3IV: 210808.65-452015.3
21081-4520 I 1434 2016 7 335 0.8 10.42 10.79 G2/3IV: 210808.65-452015.3

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

 
 
WDS 21081-4520 I 1434 (HD 200957) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21081-4520 I 1434 (HD 200957) : MEASURES
 
 
No records found.

 
 
WDS 21081-4520 (HD 200957) : VIRTUAL EYEPIECE
 
 

21081-4520 I 1434A mag 10.42 Sp G2/3IV: 21081-4520 I 1434B sep 0.7 P.A. 341.60 mag 10.79 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 21081-4520 (HD 200957) : ALADIN DSS IMAGE @ 21h 08m 08.65s -45° 20' 15.3"
 
 
 
 
WDS 21081-4520 I 1434 (HD 200957) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21081-4520 I 1434 distance=0' 21092-4529 TDT2787 distance=14' 21081-4505 BVD 133 distance=16' 21064-4548 HU 1333 distance=34' 21050-4441 KPP3080 distance=52' 21045-4615 TOK 35 distance=67' 21004-4519 HU 1533 distance=82' 21136-4423 KPP 604 distance=82' 21017-4431 TOK 800 distance=84' 21050-4357 UC 4373 distance=91' 21152-4612 KPP3079 distance=91' 21008-4429 TDT2693 distance=93' 21011-4426 HJ 5238 distance=94' 21048-4650 NSN 454 distance=97' 21030-4643 SKF1099 distance=99' 21176-4445 TSN 197 distance=107' 21172-4410 TDT2884 distance=119' 21146-4337 CPO 621 distance=124' 20571-4439 LDS 729 distance=124' 20568-4452 HDS2984 distance=124' 20578-4402 DON 995 distance=136' 21099-4304 UC 4395 distance=138' 20583-4345 I 1048 distance=142' 20555-4426 I 1430 distance=145' 21217-4607 HDS3041 distance=150' 21146-4737 KPP1790 distance=152' 21022-4300 DUN 236 distance=154' 21193-4703 HJ 5259AB distance=156' 21193-4703 ARY 104AC distance=156' 21086-4245 SYU 12 distance=156' 20533-4519 SKF1169 distance=157' 20545-4627 B 508 distance=157' 20548-4636 I 1429AB distance=159' 21165-4734 KPP4231 distance=160' 21214-4403 TDT2918 distance=161' 21041-4758 I 130 distance=163' 21202-4336 DON1007 distance=167' 20596-4746 I 1431 distance=170' 21226-4639 SKF1171 distance=171' 21015-4246 NSN 455 distance=171' 21043-4233 DON 999 distance=173' 21083-4813 TDT2780 distance=173' 20531-4637 SKF1168 distance=175' 21205-4732 RST1087 distance=184' 21114-4215 TSN 97 distance=189' 21050-4214 UC 4372 distance=190' 20591-4806 RST3273 distance=190' 21253-4409 TSN 46 distance=197' 21266-4604 HJ 5267AB distance=199' 21266-4604 I 1442AC distance=199' 21266-4604 HJ 5267AD distance=199' 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 21081-4520 I 1434 335 0.8
Show 21092-4529 TDT2787 77 0.5 14
Show 21081-4505 BVD 133 246 21.1 16
Show 21064-4548 HU 1333 319 1.7 34
Show 21050-4441 KPP3080 169 8.6 52
Show 21045-4615 TOK 35 202 39.9 67
Show 21004-4519 HU 1533 51 4.3 82
Show 21136-4423 KPP 604 86 5.6 82
Show 21017-4431 TOK 800 210 0.5 84
Show 21050-4357 UC 4373 126 45.6 91
Show 21152-4612 KPP3079 70 10.1 91
Show 21008-4429 TDT2693 106 1.8 93
Show 21011-4426 HJ 5238 192 36.9 94
Show 21048-4650 NSN 454 7 9.1 97
Show 21030-4643 SKF1099 137 6.0 99
Show 21176-4445 TSN 197 358 0.8 107
Show 21172-4410 TDT2884 46 0.6 119
Show 21146-4337 CPO 621 23 3.6 124
Show 20571-4439 LDS 729 106 220.3 124
Show 20568-4452 HDS2984 239 0.8 124
Show 20578-4402 DON 995 252 2.0 136
Show 21099-4304 UC 4395 141 61.2 138
Show 20583-4345 I 1048 137 1.6 142
Show 20555-4426 I 1430 29 1.4 145
Show 21217-4607 HDS3041 42 0.3 150
Show 21146-4737 KPP1790 240 13.9 152
Show 21022-4300 DUN 236 73 57.4 154
Show 21193-4703 HJ 5259 AB 121 26.6 156
Show 21193-4703 ARY 104 AC 264 45.2 156
Show 21086-4245 SYU 12 224 0.2 156
Show 20533-4519 SKF1169 224 95.9 157
Show 20545-4627 B 508 281 2.3 157
Show 20548-4636 I 1429 AB 147 1.1 159
Show 21165-4734 KPP4231 162 2.2 160
Show 21214-4403 TDT2918 18 0.5 161
Show 21041-4758 I 130 319 3.3 163
Show 21202-4336 DON1007 60 2.0 167
Show 20596-4746 I 1431 0.5 170
Show 21226-4639 SKF1171 249 6.5 171
Show 21015-4246 NSN 455 189 2.5 171
Show 21043-4233 DON 999 263 4.6 173
Show 21083-4813 TDT2780 89 1.7 173
Show 20531-4637 SKF1168 231 16.9 175
Show 21205-4732 RST1087 142 0.3 184
Show 21114-4215 TSN 97 227 56.4 189
Show 21050-4214 UC 4372 12 13.9 190
Show 20591-4806 RST3273 49 1.0 190
Show 21253-4409 TSN 46 213 337.2 197
Show 21266-4604 HJ 5267 AB 57 5.0 199
Show 21266-4604 I 1442 AC 238 16.4 199
Show 21266-4604 HJ 5267 AD 182 44.0 199

 
 
WDS 21081-4520 : COMPONENTS
 
 
  A
B pa=341.6°
sep=0.73"
 
 
21081-4520 A
 
 
Componente originario normalizzato AB Name HD 200957 Coord arcsec 2000 210808.65-452015.3 Mag 10.42
Spectral class G2/3IV: (yellow) PmRA 15.00 PmDE -32.0 SAO 230542
Tycho2 8421-00987-1 HD 200957 DM CP-4510096
Tycho2
Tycho2 8421-00987-1 Pflag RAmdeg 317.03599807 DEmdeg -45.33751963
PmRA 14.9 PmDE -31.5 E RAmdeg 21 E DEmdeg 23
E pmRA 1.8 E pmDE 1.8 EpRAm 1989.76 EpDEm 1989.27
Num 5 Q RAmdeg 1.4 Q DEmdeg 1.3 Q pmRA 1.4
Q pmDE 1.2 BTmag 10.655 E BTmag 0.041 VTmag 10.008
E VTmag 0.033 Prox 999 TYC T HIP
CCDM RAdeg 317.03595167 DEdeg -45.33744889 EpRA 1990 1.84
EpDE 1990 1.83 E RAdeg 21.5 E DEdeg 24.2 Posflg P
Corr -0.2
SAO
SAO 230542 DelFlag RA1950 PmRA1950 0.0025
DE1950 PmDE1950 -0.02 Vmag 9.5 SpType G0
Double code Source 48 CatNum 19201 DM CP-4510096
DMcomp BDsup HD 200957 M HD 0
GC RA1950rad 5.51874658 DE1950rad -0.79481286 PmRA2000 0.0025
PmDE2000 -0.024
CCDM
Ccdm 21081-4520 RComp Comp A Note1
Note2 Discov num DRAs 2.66 DDEs -14.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.9 Sp G0 PmNote *
PmRA 26 PmDE -20 Dm number -4514206 Cat1 CD
Name2 230542 Cat2 SAO HD 200957 M HD
ADS BDS M ADS BDS N IDS IDS 21014S4544A
HIC
 
 
21081-4520 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 210808.63-452014.6 Mag 10.79 PmRA 15.00
PmDE -32.0 Calc delta mag 0.37 Calc coord yes
CCDM
Ccdm 21081-4520 RComp Comp B Note1
Note2 Discov num I 1434 DRAs DDEs
R dRAs Year 1926 Theta 341 Rho 0.7
Obs 4 Vmag 10.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 21014S4544B
HIC