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Current system
20531-0728
BRT 556


Nearby doubles
11' : 20534-0719
RST4685

32' : 20534-0657
GWP3012

38' : 20531-0651
J 2326

58' : 20509-0815
SHN 247

65' : 20490-0749
UC 4297

65' : 20502-0640
FMR 19

67' : 20499-0815
J 2322AB

72' : 20495-0815
TDT2563

84' : 20482-0648
RST4681

91' : 20527-0859
TOK 342AB

94' : 20475-0646
SKF1769

95' : 20499-0851
RST4683

98' : 20572-0612
GRF 4

101' : 20594-0652
SKF1773

102' : 20593-0812
AHD 31

102' : 20595-0804
RST3275

103' : 20567-0600
J 2330AB

104' : 20560-0555
UC 4333

107' : 20599-0653
UC 4355

114' : 20455-0716
A 3000

114' : 20514-0538
STF2729AB

114' : 20482-0601
TOK 341

118' : 21008-0704
UC 4361

120' : 20455-0809
HJ 925

120' : 21005-0642
CVR 881

120' : 20581-0902
ELP 46



Selections
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Binary Systems
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Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20531-0728 BRT 556

 
 
20h 53m 05.40s -07° 28' 29.8" P.A. 109.00 sep 2.5 mag 13.20,17.00
 
 
Coord 2000 20531-0728 Discov num BRT 556 Comp Coord arcsec 2000 20 53 05.40 -07 28 29.8
Date first 2000 Date last 2016 Obs 3
Pa first 110 Pa last 109 P.A. Now (θ) 109°
Sep first 2.6 Sep last 2.515 Sep. Now (ρ) 2.515"
Mag pri 13.20 Mag sec 17.00 delta mag (ΔM) 3.8 Spectral class
Pri motion ra +020 Sec motion ra
Pri motion dec -006 Sec motion dec
Notes R (Red magnitudes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Aquarius Gaia DR2 6909776680392269824
 
 
WDS 20531-0728 BRT 556 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Brt1926a Pa - Barton, S.G. 1926AJ.....36..155B
Brt1926a AJ 36, 155, 1926 (BRT 1 - BRT 62)
Brt1926b Pa j Barton, S.G. 1926AJ.....37...57B
Brt1926b AJ 37, 57, 1926 (BRT 63 - BRT 116)
Brt1928 Pa - Barton, S.G. 1928AJ.....38..168B
Brt1928 AJ 38, 168, 1928 (BRT 117 - BRT 230)
Brt1929a Pa - Barton, S.G. 1929AN....235..425B
Brt1929a AN 235, 425, 1929 (BRT 294 - BRT 322)
Brt1929b Pa - Barton, S.G. 1929AJ.....39...93B
Brt1929b AJ 39, 93, 1929 (BRT 231 - BRT 293)
Brt1929c Ma j Barton, S.G. 1929AJ.....39..120B
Brt1929c AJ 39, 120, 1929
Brt1930 Pa - Barton, S.G. 1930AJ.....40..181B
Brt1930 AJ 40, 181, 1930 (BRT 323 - BRT 348)
Brt1931 Pa - Barton, S.G. (BRT 349 - BRT 562) 1931AJ.....41...35B
Brt1931 AJ 41, 35, 1931 (no measures for BRT 529 - BRT 562)
Brt1932a Pa - Barton, S.G. 1932AJ.....42...93B
Brt1932a AJ 42, 93, 1932 (BRT 604 - BRT 636)
Brt1932b Ma - Barton, S.G. 1932PFAO....5a...1B
Brt1932b +Pa Pub. Univ. Penn. 5, Pt.1, Sec.2, 1932 (BRT 563 - BRT 603, BRT1928, etc.)
Brt1932C Ma - Barton, S.G. 1932QB821.A43......
Brt1932C cited in ADS (Aitken Double Star Cat.), 1932
Brt1933 Pa - Barton, S.G. 1933AN....250...49B
Brt1933 AN 250, 49, 1933
Brt1933 (BRT 637 - BRT1134; very approximate dates added for pairs listed with only
Brt1933 secondary magnitudes and no astrometry)
Brt1934 Pa - Barton, S.G. 1934AJ.....43..119B
Brt1934 +Ma AJ 43, 119, 1934
Brt1935a Pa - Barton, S.G. 1935AJ.....44..105B
Brt1935a +Ma AJ 44, 105, 1935
Brt1935b Pa - Barton, S.G. 1935AN....256..357B
Brt1935b AN 256, 357, 1935
Brt1936a Ma - Barton, S.G. 1936AJ.....45...33B
Brt1936a +Pa AJ 45, 33, 1936
Brt1936b Pa - Barton, S.G. 1936AJ.....45...99B
Brt1936b +Ma AJ 45, 99, 1936
Brt1937a Pa - Barton, S.G. 1937AN....263..347B
Brt1937a AN 263, 347, 1937
Brt1937b Pa - Barton, S.G. 1937AN....263..383B
Brt1937b AN 263, 383, 1937
Brt1938 Ma - Barton, S.G. 1938AJ.....47..133B
Brt1938 +Pa AJ 47, 133, 1938
Brt1939a Ma - Barton, S.G. 1939PFAO....5b...1B
Brt1939a +Pa Pub. Univ. Penn. 5, Pt.2, Sec.2, 1939
Brt1939b Pa - Barton, S.G. 1939AJ.....48..145B
Brt1939b +Ma AJ 48, 145, 1939
Brt1941 Pa - Barton, S.G. 1941PASP...55..339B
Brt1941 PASP 55, 339, 1941
Brt1942 Pa - Barton, S.G. 1942AJ.....50...11B
Brt1942 AJ 50, 11, 1942
Brt1947 Ma - Barton, S.G. 1947AJ.....52..178B
Brt1947 +Pa AJ 52, 178, 1947
Brt1949 Ma - Barton, S.G. 1949PFAO....7a...1B
Brt1949 Pub. Univ. Penn. 7, Pt.1, Sec.1, 1949
Brt1951 Pa - Barton, S.G. 1951AJ.....55..218B
Brt1951 AJ 55, 218, 1951
Brt1957 Ma - Barton, S.G. 1957QB4.P5v7ps3....
Brt1957 Pub. Univ. Penn. 7, Pt.3, 15, 1957
Brt9999 Ma - Barton, S.G. ...................
Brt9999 +Pa Unpublished, manuscript or reference not found.
Brt2002A Ma - Barton, S.G. 2002yCat.1275....0D
Brt2002A +Pa cited in CCDM
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20531-0728 BRT 556 -1 0 -1 -1.0 12.60   R 205305.40-072829.8
20531-0728 BRT 556 2000 1 110 2.6 13.20 17.00 R 205305.40-072829.8
20531-0728 BRT 556 2015 2 109 2.5 13.20 17.00 R 205305.40-072829.8
20531-0728 BRT 556 2016 3 109 2.5 13.20 17.00 R 205305.40-072829.8

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

 
 
WDS 20531-0728 BRT 556 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20531-0728 BRT 556 : MEASURES
 
 
No records found.

 
 
WDS 20531-0728 : VIRTUAL EYEPIECE
 
 

20531-0728 BRT 556A mag 13.2 20531-0728 BRT 556B sep 2.5 P.A. 109.20 mag 17 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 20531-0728 : ALADIN DSS IMAGE @ 20h 53m 05.40s -07° 28' 29.8"
 
 
 
 
WDS 20531-0728 BRT 556 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20531-0728 BRT 556 distance=0' 20534-0719 RST4685 distance=11' 20534-0657 GWP3012 distance=32' 20531-0651 J 2326 distance=38' 20509-0815 SHN 247 distance=58' 20490-0749 UC 4297 distance=65' 20502-0640 FMR 19 distance=65' 20499-0815 J 2322AB distance=67' 20495-0815 TDT2563 distance=72' 20482-0648 RST4681 distance=84' 20527-0859 MCA 64Aa,Ab distance=91' 20527-0859 TOK 342AB distance=91' 20475-0646 SKF1769 distance=94' 20499-0851 RST4683 distance=95' 20572-0612 GRF 4 distance=98' 20594-0652 SKF1773 distance=101' 20593-0812 AHD 31 distance=102' 20595-0804 RST3275 distance=102' 20567-0600 J 2330AB distance=103' 20567-0600 J 2330AC distance=103' 20560-0555 UC 4333 distance=104' 20599-0653 UC 4355 distance=107' 20455-0716 A 3000 distance=114' 20514-0538 STF2729AB distance=114' 20514-0538 STF2729AC distance=114' 20514-0538 STF2729AD distance=114' 20482-0601 TOK 341 distance=114' 21008-0704 UC 4361 distance=118' 20455-0809 HJ 925 distance=120' 21005-0642 CVR 881 distance=120' 20581-0902 ELP 46 distance=120' 21011-0657 WAA 49 distance=124' 20453-0646 RST4680 distance=125' 20507-0929 HDS2970 distance=126' 20447-0721 A 2999 distance=126' 20452-0814 TOB 312 distance=126' 20507-0529 BRT 507 distance=126' 21008-0821 BU 678AB distance=127' 21008-0821 FOX 255AC distance=127' 20440-0631 GRV1138 distance=134' 20456-0853 HDO 160 distance=140' 20588-0921 BOO 1DF distance=141' 20588-0921 BU 764DE distance=141' 20588-0921 BU 764AB distance=142' 20588-0921 BU 764AB,E distance=142' 20588-0921 BU 764AB,C distance=142' 20588-0921 BU 764AB,D distance=142' 20588-0921 BU 764CE distance=143' 20569-0942 BU 1034AB distance=145' 20569-0942 BU 1034AC distance=145' 20432-0733 TDS1093 distance=148' 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 20531-0728 BRT 556 109 2.5
Show 20534-0719 RST4685 81 2.1 11
Show 20534-0657 GWP3012 289 119.4 32
Show 20531-0651 J 2326 80 8.1 38
Show 20509-0815 SHN 247 -1 0.5 58
Show 20490-0749 UC 4297 261 21.3 65
Show 20502-0640 FMR 19 333 4.2 65
Show 20499-0815 J 2322 AB 8 3.9 67
Show 20495-0815 TDT2563 92 0.6 72
Show 20482-0648 RST4681 243 0.3 84
Show 20527-0859 MCA 64 Aa,Ab 127 0.0 91
Show 20527-0859 TOK 342 AB 114 503.2 91
Show 20475-0646 SKF1769 244 2.0 94
Show 20499-0851 RST4683 22 1.5 95
Show 20572-0612 GRF 4 30 13.1 98
Show 20594-0652 SKF1773 31 1.7 101
Show 20593-0812 AHD 31 161 10.6 102
Show 20595-0804 RST3275 5 1.9 102
Show 20567-0600 J 2330 AB 115 6.4 103
Show 20567-0600 J 2330 AC 106 27.7 103
Show 20560-0555 UC 4333 184 73.7 104
Show 20599-0653 UC 4355 21 32.1 107
Show 20455-0716 A 3000 64 0.7 114
Show 20514-0538 STF2729 AB 35 0.7 114
Show 20514-0538 STF2729 AC 311 74.3 114
Show 20514-0538 STF2729 AD 324 137.3 114
Show 20482-0601 TOK 341 261 391.4 114
Show 21008-0704 UC 4361 52 39.2 118
Show 20455-0809 HJ 925 174 10.1 120
Show 21005-0642 CVR 881 127 11.1 120
Show 20581-0902 ELP 46 316 11.5 120
Show 21011-0657 WAA 49 171 6.1 124
Show 20453-0646 RST4680 235 0.1 125
Show 20507-0929 HDS2970 114 15.2 126
Show 20447-0721 A 2999 221 2.1 126
Show 20452-0814 TOB 312 26 40.8 126
Show 20507-0529 BRT 507 69 9.2 126
Show 21008-0821 BU 678 AB 260 2.8 127
Show 21008-0821 FOX 255 AC 251 71.0 127
Show 20440-0631 GRV1138 50 33.2 134
Show 20456-0853 HDO 160 201 5.7 140
Show 20588-0921 BOO 1 DF 195 18.3 141
Show 20588-0921 BU 764 DE 177 124.3 141
Show 20588-0921 BU 764 AB 1 0.7 142
Show 20588-0921 BU 764 AB,E 86 54.5 142
Show 20588-0921 BU 764 AB,C 110 102.8 142
Show 20588-0921 BU 764 AB,D 21 136.2 142
Show 20588-0921 BU 764 CE 312 57.3 143
Show 20569-0942 BU 1034 AB 166 2.2 145
Show 20569-0942 BU 1034 AC 66 177.8 145
Show 20432-0733 TDS1093 33 0.9 148

 
 
WDS 20531-0728 : COMPONENTS
 
 
  A
B pa=109.2°
sep=2.50"
 
 
20531-0728 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205305.40-072829.8 Mag 13.2 PmRA 20.00
PmDE -6.0
 
 
20531-0728 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205305.56-072830.6 Mag 17 Calc delta mag 3.8
Calc coord yes