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Current system
21401+2928
BRT 57


Nearby doubles
18' : 21410+2920
STT 448

29' : 21420+2924
MLB 539

30' : 21416+2911
GRV 493

31' : 21384+2953
MLB 491

32' : 21412+2955
GRV 491

36' : 21420+2951
MLB 720

36' : 21383+2958
HJ 1670

39' : 21418+2901
MLB 492

41' : 21395+3009
A 772

47' : 21430+2951
KPP 498

49' : 21363+2917
BRT 56

56' : 21356+2918
GRV 481

58' : 21442+2942
MLB 493

59' : 21362+3003
BU 167

61' : 21429+3014
TDT3119

64' : 21390+2826
ES 520

65' : 21364+3015
MLB 719

71' : 21355+3012
UC 4502

72' : 21452+2914
UC 4550

72' : 21441+2845
STF2822AB

75' : 21346+2856
J 2352

76' : 21455+2948
DAM 237

77' : 21384+3044
LDS4900

78' : 21412+3043
J 3143

79' : 21353+3020
MLB 718

79' : 21458+2945
DAM 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.

21401+2928 BRT 57

 
 
21h 39m 50.92s +29° 29' 22.1" P.A. 137.00 sep 5.0 mag 10.20,10.30
 
 
Coord 2000 21401+2928 Discov num BRT  57 Comp Coord arcsec 2000 21 39 50.92 +29 29 22.1
Date first 1894 Date last 2016 Obs 19
Pa first 134 Pa last 136.5 P.A. Now (θ) 136.5°
Sep first 4.2 Sep last 5.004 Sep. Now (ρ) 5.004"
Mag pri 10.20 Mag sec 10.30 delta mag (ΔM) 0.1 Spectral class
Pri motion ra -021 Sec motion ra +028
Pri motion dec +046 Sec motion dec -009
Notes
rPM=1.457
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1849399212420096768
 
 
WDS 21401+2928 BRT 57 : 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
21401+2928 BRT 57 2000 9 315 4.8 10.20 10.30 D 213950.92+292922.1
21401+2928 BRT 57 2011 10 137 5.0 10.20 10.30 D 213950.92+292922.1
21401+2928 BRT 57 2012 14 136 4.1 10.20 10.30 213950.92+292922.1
21401+2928 BRT 57 2015 15 137 5.0 10.20 10.30 213950.92+292922.1
21401+2928 BRT 57 2016 19 137 5.0 10.20 10.30 213950.92+292922.1

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

 
 
WDS 21401+2928 BRT 57 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21401+2928 BRT 57 : MEASURES
 
 
No records found.

 
 
WDS 21401+2928 : VIRTUAL EYEPIECE
 
 

21401+2928 BRT 57A mag 10.2 21401+2928 BRT 57B sep 4.7 P.A. 140.40 mag 10.3 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 21401+2928 : ALADIN DSS IMAGE @ 21h 39m 50.92s +29° 29' 22.1"
 
 
 
 
WDS 21401+2928 BRT 57 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21401+2928 BRT 57 distance=0' 21410+2920 STT 448 distance=18' 21420+2924 MLB 539 distance=29' 21416+2911 GRV 493 distance=30' 21384+2953 MLB 491 distance=31' 21412+2955 GRV 491 distance=32' 21420+2951 MLB 720 distance=36' 21383+2958 HJ 1670 distance=36' 21418+2901 MLB 492 distance=39' 21395+3009 A 772 distance=41' 21430+2951 KPP 498 distance=47' 21363+2917 BRT 56 distance=49' 21422+3008 MLB 575BC distance=50' 21422+3008 MLB 575AC distance=50' 21356+2918 GRV 481 distance=56' 21442+2942 MLB 493 distance=58' 21362+3003 BU 167 distance=59' 21429+3014 TDT3119 distance=61' 21390+2826 ES 520 distance=64' 21364+3015 MLB 719 distance=65' 21355+3012 UC 4502 distance=71' 21452+2914 UC 4550 distance=72' 21441+2845 STF2822BD distance=72' 21441+2845 STF2822AB distance=72' 21441+2845 STF2822AC distance=72' 21441+2845 STF2822AD distance=72' 21441+2845 FYM 25AF distance=72' 21441+2845 FYM 25AG distance=72' 21441+2845 ES 521DE distance=73' 21441+2845 FYM 25DG distance=73' 21346+2856 J 2352 distance=75' 21455+2948 DAM 237 distance=76' 21384+3044 LDS4900 distance=77' 21412+3043 J 3143 distance=78' 21353+3020 MLB 718 distance=79' 21458+2945 DAM 236 distance=79' 21348+3016 ES 380CD distance=80' 21457+2957 TDT3145 distance=81' 21348+3016 ES 380AB distance=81' 21348+3016 ES 380AC distance=81' 21458+2954 TDT3146 distance=82' 21407+3056 GRV 490 distance=89' 21451+3026 TDT3136 distance=89' 21444+2824 KPP3373 distance=89' 21461+2855 BRT 58 distance=89' 21389+3058 TDT3081 distance=90' 21331+2958 J 3141AB distance=93' 21331+2958 LOS 5AC distance=93' 21331+2958 LOS 5BC distance=93' 21327+2930 ES 517 distance=93' 21470+2930 GRV 503 distance=94' 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 21401+2928 BRT 57 137 5.0
Show 21410+2920 STT 448 31 0.1 18
Show 21420+2924 MLB 539 171 4.8 29
Show 21416+2911 GRV 493 184 44.7 30
Show 21384+2953 MLB 491 34 4.8 31
Show 21412+2955 GRV 491 21 31.4 32
Show 21420+2951 MLB 720 140 7.2 36
Show 21383+2958 HJ 1670 78 11.7 36
Show 21418+2901 MLB 492 114 7.0 39
Show 21395+3009 A 772 112 0.1 41
Show 21430+2951 KPP 498 58 3.9 47
Show 21363+2917 BRT 56 306 3.2 49
Show 21422+3008 MLB 575 BC 108 2.7 50
Show 21422+3008 MLB 575 AC 133 17.4 50
Show 21356+2918 GRV 481 184 64.0 56
Show 21442+2942 MLB 493 330 8.6 58
Show 21362+3003 BU 167 89 1.7 59
Show 21429+3014 TDT3119 157 2.7 61
Show 21390+2826 ES 520 36 9.3 64
Show 21364+3015 MLB 719 136 6.0 65
Show 21355+3012 UC 4502 264 46.1 71
Show 21452+2914 UC 4550 15 42.5 72
Show 21441+2845 STF2822 BD 45 196.7 72
Show 21441+2845 STF2822 AB 325 1.6 72
Show 21441+2845 STF2822 AC 292 76.6 72
Show 21441+2845 STF2822 AD 43 197.0 72
Show 21441+2845 FYM 25 AF 72 111.5 72
Show 21441+2845 FYM 25 AG 73 168.1 72
Show 21441+2845 ES 521 DE 286 17.5 73
Show 21441+2845 FYM 25 DG 164 89.6 73
Show 21346+2856 J 2352 247 6.4 75
Show 21455+2948 DAM 237 233 6.3 76
Show 21384+3044 LDS4900 213 17.4 77
Show 21412+3043 J 3143 262 6.6 78
Show 21353+3020 MLB 718 307 8.1 79
Show 21458+2945 DAM 236 143 5.9 79
Show 21348+3016 ES 380 CD 312 2.9 80
Show 21457+2957 TDT3145 250 2.2 81
Show 21348+3016 ES 380 AB 49 16.2 81
Show 21348+3016 ES 380 AC 106 61.5 81
Show 21458+2954 TDT3146 359 2.5 82
Show 21407+3056 GRV 490 328 31.7 89
Show 21451+3026 TDT3136 0.8 89
Show 21444+2824 KPP3373 242 2.1 89
Show 21461+2855 BRT 58 165 4.4 89
Show 21389+3058 TDT3081 114 0.8 90
Show 21331+2958 J 3141 AB 313 6.8 93
Show 21331+2958 LOS 5 AC 350 6.1 93
Show 21331+2958 LOS 5 BC 70 4.1 93
Show 21327+2930 ES 517 240 2.5 93
Show 21470+2930 GRV 503 331 20.4 94

 
 
WDS 21401+2928 : COMPONENTS
 
 
  A
B pa=140.4°
sep=4.71"
 
 
21401+2928 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 213950.92+292922.1 Mag 10.2 PmRA -21.00
PmDE 46.0
 
 
21401+2928 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 213951.15+292918.5 Mag 10.3 PmRA 28.00
PmDE -9.0 Calc delta mag 0.1 Calc coord yes