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Current system
20555-4426
I 1430


Nearby doubles
22' : 20571-4439
LDS 729

30' : 20568-4452
HDS2984

35' : 20578-4402
DON 995

51' : 20583-4345
I 1048

58' : 21008-4429
TDT2693

58' : 20533-4519
SKF1169

60' : 21011-4426
HJ 5238

67' : 21017-4431
TOK 800

75' : 21004-4519
HU 1533

78' : 20487-4359
DON 993AB

81' : 20485-4359
DON 992

103' : 21050-4441
KPP3080

106' : 21050-4357
UC 4373

108' : 20476-4534
I 1427

112' : 20452-4428
BRT1114

113' : 21022-4300
DUN 236

120' : 21015-4246
NSN 455

122' : 20545-4627
B 508

124' : 20441-4412
KPP1048AB

131' : 20548-4636
I 1429AB

133' : 20561-4213
UC 4335

134' : 20531-4637
SKF1168

140' : 21081-4505
BVD 133

140' : 20454-4554
RST1076

141' : 20427-4400
KPP3106

142' : 21064-4548
HU 1333



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.

20555-4426 I 1430

 
 
20h 55m 31.26s -44° 26' 04.0" P.A. 29.00 sep 1.4 mag 10.94,11.60
 
 
Coord 2000 20555-4426 Discov num I  1430 Comp Coord arcsec 2000 20 55 31.26 -44 26 04.0
Date first 1925 Date last 2016 Obs 6
Pa first 34 Pa last 29.3 P.A. Now (θ) 29.3°
Sep first 1.1 Sep last 1.385 Sep. Now (ρ) 1.385"
Mag pri 10.94 Mag sec 11.60 delta mag (ΔM) 0.66 Spectral class
Pri motion ra +011 Sec motion ra
Pri motion dec -037 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Microscopium Tycho2 7976-00686-1 Gaia DR2 6484517026225739136
 
 
WDS 20555-4426 I 1430 : 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
20555-4426 I 1430 1963 4 29 1.5 10.94 11.60 205531.26-442604.0
20555-4426 I 1430 2015 5 29 1.4 10.94 11.60 205531.26-442604.0
20555-4426 I 1430 2016 6 29 1.4 10.94 11.60 205531.26-442604.0

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

 
 
WDS 20555-4426 I 1430 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20555-4426 I 1430 : MEASURES
 
 
No records found.

 
 
WDS 20555-4426 : VIRTUAL EYEPIECE
 
 

20555-4426 I 1430A mag 10.94 20555-4426 I 1430B sep 1.3 P.A. 21.80 mag 11.6 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 20555-4426 : ALADIN DSS IMAGE @ 20h 55m 31.26s -44° 26' 04.0"
 
 
 
 
WDS 20555-4426 I 1430 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20555-4426 I 1430 distance=0' 20571-4439 LDS 729 distance=22' 20568-4452 HDS2984 distance=30' 20578-4402 DON 995 distance=35' 20583-4345 I 1048 distance=51' 21008-4429 TDT2693 distance=58' 20533-4519 SKF1169 distance=58' 21011-4426 HJ 5238 distance=60' 21017-4431 TOK 800 distance=67' 21004-4519 HU 1533 distance=75' 20487-4359 DON 993AB distance=78' 20487-4359 HJ 5222AC distance=78' 20485-4359 DON 992 distance=81' 21050-4441 KPP3080 distance=103' 21050-4357 UC 4373 distance=106' 20476-4534 I 1427 distance=108' 20452-4428 BRT1114 distance=112' 21022-4300 DUN 236 distance=113' 21015-4246 NSN 455 distance=120' 20545-4627 B 508 distance=122' 20441-4412 KPP1048AB distance=124' 20548-4636 I 1429AB distance=131' 20561-4213 UC 4335 distance=133' 20531-4637 SKF1168 distance=134' 21081-4505 BVD 133 distance=140' 20454-4554 RST1076 distance=140' 20427-4400 KPP3106 distance=141' 21064-4548 HU 1333 distance=142' 20556-4204 BRT1116 distance=142' 21081-4520 I 1434 distance=145' 21045-4615 TOK 35 distance=145' 21043-4233 DON 999 distance=149' 20536-4153 BRT1115 distance=155' 20495-4649 HU 1331 distance=157' 21092-4529 TDT2787 distance=158' 21030-4643 SKF1099 distance=159' 21028-4206 TDT2712 distance=161' 20465-4639 LDS 721 distance=164' 20552-4139 UC 4327 distance=167' 21050-4214 UC 4372 distance=168' 20459-4640 RST2156 distance=169' 20400-4359 DON 990AB distance=170' 20400-4359 DON 990AC distance=170' 20573-4136 UC 4343 distance=172' 20411-4549 SKF1166 distance=174' 21048-4650 NSN 454 distance=174' 21086-4245 SYU 12 distance=175' 21099-4304 UC 4395 distance=176' 21050-4203 CPO 619 distance=177' 20417-4253 TDT2475 distance=177' 20391-4345 LDS 717 distance=181' 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 20555-4426 I 1430 29 1.4
Show 20571-4439 LDS 729 106 220.3 22
Show 20568-4452 HDS2984 239 0.8 30
Show 20578-4402 DON 995 252 2.0 35
Show 20583-4345 I 1048 137 1.6 51
Show 21008-4429 TDT2693 106 1.8 58
Show 20533-4519 SKF1169 224 95.9 58
Show 21011-4426 HJ 5238 192 36.9 60
Show 21017-4431 TOK 800 210 0.5 67
Show 21004-4519 HU 1533 51 4.3 75
Show 20487-4359 DON 993 AB 332 12.2 78
Show 20487-4359 HJ 5222 AC 271 28.6 78
Show 20485-4359 DON 992 291 5.2 81
Show 21050-4441 KPP3080 169 8.6 103
Show 21050-4357 UC 4373 126 45.6 106
Show 20476-4534 I 1427 211 0.6 108
Show 20452-4428 BRT1114 65 5.6 112
Show 21022-4300 DUN 236 73 57.4 113
Show 21015-4246 NSN 455 189 2.5 120
Show 20545-4627 B 508 281 2.3 122
Show 20441-4412 KPP1048 AB 183 8.4 124
Show 20548-4636 I 1429 AB 147 1.1 131
Show 20561-4213 UC 4335 196 30.8 133
Show 20531-4637 SKF1168 231 16.9 134
Show 21081-4505 BVD 133 246 21.1 140
Show 20454-4554 RST1076 287 1.0 140
Show 20427-4400 KPP3106 232 2.5 141
Show 21064-4548 HU 1333 319 1.7 142
Show 20556-4204 BRT1116 138 4.5 142
Show 21081-4520 I 1434 335 0.8 145
Show 21045-4615 TOK 35 202 39.9 145
Show 21043-4233 DON 999 263 4.6 149
Show 20536-4153 BRT1115 339 3.5 155
Show 20495-4649 HU 1331 194 0.9 157
Show 21092-4529 TDT2787 77 0.5 158
Show 21030-4643 SKF1099 137 6.0 159
Show 21028-4206 TDT2712 309 0.7 161
Show 20465-4639 LDS 721 215 6.7 164
Show 20552-4139 UC 4327 96 77.2 167
Show 21050-4214 UC 4372 12 13.9 168
Show 20459-4640 RST2156 245 0.6 169
Show 20400-4359 DON 990 AB 39 0.3 170
Show 20400-4359 DON 990 AC 292 7.0 170
Show 20573-4136 UC 4343 265 17.3 172
Show 20411-4549 SKF1166 147 20.8 174
Show 21048-4650 NSN 454 7 9.1 174
Show 21086-4245 SYU 12 224 0.2 175
Show 21099-4304 UC 4395 141 61.2 176
Show 21050-4203 CPO 619 252 5.6 177
Show 20417-4253 TDT2475 303 1.0 177
Show 20391-4345 LDS 717 308 22.2 181

 
 
WDS 20555-4426 : COMPONENTS
 
 
  A
B pa=21.8°
sep=1.30"
 
 
20555-4426 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205531.26-442604.0 Mag 10.94 PmRA 11.00
PmDE -37.0 Tycho2 7976-00686-1 DM CD-4414194
Tycho2
Tycho2 7976-00686-1 Pflag RAmdeg 313.88026492 DEmdeg -44.43446860
PmRA 11.4 PmDE -37.0 E RAmdeg 38 E DEmdeg 52
E pmRA 2.1 E pmDE 2.0 EpRAm 1988.13 EpDEm 1983.96
Num 3 Q RAmdeg 1.0 Q DEmdeg 0.1 Q pmRA 1.0
Q pmDE 0.1 BTmag 11.788 E BTmag 0.081 VTmag 10.938
E VTmag 0.066 Prox 999 TYC T HIP
CCDM RAdeg 313.88022889 DEdeg -44.43438417 EpRA 1990 1.83
EpDE 1990 1.78 E RAdeg 38.9 E DEdeg 53.7 Posflg
Corr -0.2
 
 
20555-4426 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205531.31-442602.8 Mag 11.6 Calc delta mag 0.66
Calc coord yes