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Doubles in session


Current system
20542-3714
BRT 1815


Nearby doubles
17' : 20539-3658
B 507

48' : 20502-3719
BRT1813

49' : 20570-3748
NSN 489

49' : 20582-3711
WIS 345

51' : 20506-3645
B 2893

52' : 20576-3745
B 2488

54' : 20579-3743
HJ 5236

55' : 20584-3735
SKF1251

61' : 20521-3810
SEE 429

64' : 20516-3618
B 998

65' : 20595-3718
JSP 820

78' : 20562-3828
TDT2645AB

83' : 20530-3836
TOI 154

86' : 20478-3636
LWR 17

90' : 20593-3820
B 2894

96' : 20503-3839
B 503

99' : 20506-3545
TDT2573

100' : 20583-3548
WSP 133AB

104' : 20457-3736
HJ 5216

112' : 20501-3534
HDS2969

113' : 20532-3521
BRT1814

114' : 20448-3653
UC 4278

115' : 20518-3523
KPP1661

115' : 20571-3526
B 510

115' : 21034-3748
TDT2717

121' : 20521-3517
RST3270



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.

20542-3714 BRT 1815

 
 
20h 54m 07.81s -37° 14' 03.9" P.A. 207.00 sep 4.2 mag 12.00,12.50
 
 
Coord 2000 20542-3714 Discov num BRT1815 Comp Coord arcsec 2000 20 54 07.81 -37 14 03.9
Date first 1912 Date last 2016 Obs 8
Pa first 204 Pa last 206.5 P.A. Now (θ) 206.5°
Sep first 4.4 Sep last 4.189 Sep. Now (ρ) 4.189"
Mag pri 12.00 Mag sec 12.50 delta mag (ΔM) 0.5 Spectral class
Pri motion ra +015 Sec motion ra -030
Pri motion dec +022 Sec motion dec -080
Notes
rPM=1.305
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Microscopium Gaia DR2 6775102075247651072
 
 
WDS 20542-3714 BRT 1815 : 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
20542-3714 BRT1815 2000 3 207 4.2 12.00 12.50 D 205407.81-371403.9
20542-3714 BRT1815 2010 5 205 4.3 12.00 12.50 205407.81-371403.9
20542-3714 BRT1815 2015 6 207 4.2 12.00 12.50 205407.81-371403.9
20542-3714 BRT1815 2016 8 207 4.2 12.00 12.50 205407.81-371403.9

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

 
 
WDS 20542-3714 BRT 1815 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20542-3714 BRT 1815 : MEASURES
 
 
No records found.

 
 
WDS 20542-3714 : VIRTUAL EYEPIECE
 
 

20542-3714 BRT1815A mag 12 20542-3714 BRT1815B sep 4.0 P.A. 201.70 mag 12.5 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 20542-3714 : ALADIN DSS IMAGE @ 20h 54m 07.81s -37° 14' 03.9"
 
 
 
 
WDS 20542-3714 BRT 1815 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20542-3714 BRT1815 distance=0' 20539-3658 B 507 distance=17' 20502-3719 BRT1813 distance=48' 20570-3748 NSN 489 distance=49' 20582-3711 WIS 345 distance=49' 20506-3645 B 2893 distance=51' 20576-3745 B 2488 distance=52' 20579-3743 HJ 5236 distance=54' 20584-3735 SKF1251 distance=55' 20521-3810 SEE 429 distance=61' 20516-3618 B 998 distance=64' 20595-3718 JSP 820 distance=65' 20562-3828 TDT2645AB distance=78' 20530-3836 TOI 154 distance=83' 20478-3636 LWR 17 distance=86' 20593-3820 B 2894 distance=90' 20503-3839 B 503 distance=96' 20506-3545 TDT2573 distance=99' 20583-3548 WSP 133AB distance=100' 20583-3548 WSP 133AC distance=100' 20583-3548 WSP 133AD distance=100' 20583-3548 WSP 133AE distance=100' 20457-3736 HJ 5216 distance=104' 20501-3534 HDS2969 distance=112' 20532-3521 BRT1814 distance=113' 20448-3653 UC 4278 distance=114' 20518-3523 KPP1661 distance=115' 20571-3526 B 510 distance=115' 21034-3748 TDT2717 distance=115' 20521-3517 RST3270 distance=121' 20576-3908 WG 263 distance=122' 20593-3902 WG 264 distance=124' 20574-3913 TDT2658 distance=125' 20563-3916 TDT2646 distance=125' 20480-3523 B 2892 distance=134' 21030-3838 UC 4365 distance=134' 21029-3839 KPP4221CD distance=135' 20442-3607 UC 4273 distance=138' 20497-3921 B 502 distance=138' 21007-3518 BU 765 distance=141' 20525-3451 NSN 490 distance=145' 21012-3511 TOK 344AB distance=151' 21012-3511 TOK 344Aa,Ab distance=151' 20501-3943 R 326 distance=156' 20598-3452 TDT2682 distance=158' 21068-3631 I 301 distance=159' 20561-3953 SKF1098 distance=161' 20518-3434 B 504 distance=163' 21065-3826 KIR 23 distance=164' 20436-3532 HJ 5215 distance=164' 20452-3510 SEE 428 distance=165' 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 20542-3714 BRT1815 207 4.2
Show 20539-3658 B 507 215 0.5 17
Show 20502-3719 BRT1813 296 5.4 48
Show 20570-3748 NSN 489 348 2.7 49
Show 20582-3711 WIS 345 7 35.3 49
Show 20506-3645 B 2893 297 9.7 51
Show 20576-3745 B 2488 226 2.4 52
Show 20579-3743 HJ 5236 308 5.9 54
Show 20584-3735 SKF1251 217 148.1 55
Show 20521-3810 SEE 429 179 3.4 61
Show 20516-3618 B 998 288 0.5 64
Show 20595-3718 JSP 820 247 1.4 65
Show 20562-3828 TDT2645 AB 241 0.7 78
Show 20530-3836 TOI 154 203 0.2 83
Show 20478-3636 LWR 17 20 9.0 86
Show 20593-3820 B 2894 311 11.4 90
Show 20503-3839 B 503 116 2.5 96
Show 20506-3545 TDT2573 74 0.4 99
Show 20583-3548 WSP 133 AB 212 2.4 100
Show 20583-3548 WSP 133 AC 158 16.3 100
Show 20583-3548 WSP 133 AD 339 16.4 100
Show 20583-3548 WSP 133 AE 354 16.6 100
Show 20457-3736 HJ 5216 22 15.6 104
Show 20501-3534 HDS2969 174 0.1 112
Show 20532-3521 BRT1814 258 4.0 113
Show 20448-3653 UC 4278 250 22.0 114
Show 20518-3523 KPP1661 42 12.8 115
Show 20571-3526 B 510 327 3.4 115
Show 21034-3748 TDT2717 255 0.7 115
Show 20521-3517 RST3270 338 2.5 121
Show 20576-3908 WG 263 34 7.1 122
Show 20593-3902 WG 264 82 5.3 124
Show 20574-3913 TDT2658 30 0.5 125
Show 20563-3916 TDT2646 242 1.6 125
Show 20480-3523 B 2892 104 8.1 134
Show 21030-3838 UC 4365 207 99.7 134
Show 21029-3839 KPP4221 CD 265 4.5 135
Show 20442-3607 UC 4273 22 17.6 138
Show 20497-3921 B 502 113 1.3 138
Show 21007-3518 BU 765 72 0.8 141
Show 20525-3451 NSN 490 73 2.0 145
Show 21012-3511 TOK 344 AB 61 186.0 151
Show 21012-3511 TOK 344 Aa,Ab 351 0.1 151
Show 20501-3943 R 326 293 40.3 156
Show 20598-3452 TDT2682 151 2.2 158
Show 21068-3631 I 301 335 3.7 159
Show 20561-3953 SKF1098 225 6.9 161
Show 20518-3434 B 504 38 2.3 163
Show 21065-3826 KIR 23 143 42.8 164
Show 20436-3532 HJ 5215 183 22.8 164
Show 20452-3510 SEE 428 188 4.4 165

 
 
WDS 20542-3714 : COMPONENTS
 
 
  A
B pa=201.7°
sep=4.03"
 
 
20542-3714 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205407.81-371403.9 Mag 12 PmRA 15.00
PmDE 22.0
 
 
20542-3714 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205407.69-371407.6 Mag 12.5 PmRA -30.00
PmDE -80.0 Calc delta mag 0.5 Calc coord yes