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Current system
20420+4532
BRT 2271


Nearby doubles
1' : 20421+4532
BKO 157

14' : 20427+4521
ES 1270

17' : 20414+4517
H N 73
Deneb

18' : 20423+4549
STT 411AB

23' : 20440+4521
KPP3361

25' : 20436+4514
CBL 85

28' : 20394+4530
TDS1087

35' : 20434+4501
ES 668AB

36' : 20432+4458
BKO 159

39' : 20433+4456
ES 2699

43' : 20438+4610
TDT2503

50' : 20464+4551
CVR 230

51' : 20437+4619
HO 140

55' : 20376+4504
HJ 1555

56' : 20427+4627
TDS1092

56' : 20473+4535
HO 280

59' : 20461+4452
ES 30

61' : 20459+4448
ES 2701

62' : 20456+4621
HDS2955

62' : 20432+4431
COU2422

65' : 20386+4438
ES 667

66' : 20485+4519
LDS2456

67' : 20431+4637
BRT2273

67' : 20388+4629
BRT2268

68' : 20416+4424
COU2541

69' : 20360+4555
STJ 103



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.

20420+4532 BRT 2271

 
 
20h 42m 03.23s +45° 31' 56.2" P.A. 269.00 sep 4.5 mag 11.30,11.60
 
 
Coord 2000 20420+4532 Discov num BRT2271 Comp Coord arcsec 2000 20 42 03.23 +45 31 56.2
Date first 1892 Date last 2016 Obs 9
Pa first 268 Pa last 269.1 P.A. Now (θ) 269.1°
Sep first 4.9 Sep last 4.47 Sep. Now (ρ) 4.47"
Mag pri 11.30 Mag sec 11.60 delta mag (ΔM) 0.3 Spectral class
Pri motion ra +023 Sec motion ra -002
Pri motion dec -001 Sec motion dec -004
Notes
rPM=1.094
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 2070418122100523520
 
 
WDS 20420+4532 BRT 2271 : 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
20420+4532 BRT2271 2006 6 267 4.3 10.30 10.60 D 204203.23+453156.2
20420+4532 BRT2271 2016 9 269 4.5 11.30 11.60 204203.23+453156.2

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

 
 
WDS 20420+4532 BRT 2271 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20420+4532 BRT 2271 : MEASURES
 
 
No records found.

 
 
WDS 20420+4532 : VIRTUAL EYEPIECE
 
 

20420+4532 BRT2271A mag 11.3 20420+4532 BRT2271B sep 3.1 P.A. 268.70 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 20420+4532 : ALADIN DSS IMAGE @ 20h 42m 03.23s +45° 31' 56.2"
 
 
 
 
WDS 20420+4532 BRT 2271 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20420+4532 BRT2271 distance=0' 20421+4532 BKO 157 distance=1' 20427+4521 ES 1270 distance=14' 20414+4517 H N 73 (Deneb) distance=17' 20423+4549 BKO 158EH distance=18' 20423+4549 BKO 158EF distance=18' 20423+4549 BKO 158EG distance=18' 20423+4549 BKO 158EI distance=18' 20423+4549 STT 411AB distance=18' 20423+4549 WAL 132AC distance=18' 20423+4549 BKO 158AF distance=18' 20423+4549 WAL 132BC distance=19' 20423+4549 CTT 15BD distance=19' 20423+4549 CTT 15BE distance=19' 20440+4521 KPP3361 distance=23' 20436+4514 CBL 85 distance=25' 20394+4530 TDS1087 distance=28' 20434+4501 ES 668AB distance=35' 20434+4501 ES 668AC distance=35' 20434+4501 FYM 322AD distance=35' 20432+4458 BKO 159 distance=36' 20433+4456 ES 2699 distance=39' 20438+4610 TDT2503 distance=43' 20464+4551 CVR 230 distance=50' 20437+4619 HO 140 distance=51' 20376+4504 HJ 1555 distance=55' 20427+4627 TDS1092 distance=56' 20473+4535 HO 280 distance=56' 20461+4452 ES 30 distance=59' 20459+4448 ES 2701 distance=61' 20456+4621 HDS2955 distance=62' 20432+4431 COU2422 distance=62' 20386+4438 ES 667 distance=65' 20485+4519 LDS2456 distance=66' 20431+4637 BRT2273 distance=67' 20388+4629 BRT2268 distance=67' 20416+4424 COU2541 distance=68' 20360+4555 STJ 103 distance=69' 20489+4537 HDS2965 distance=73' 20449+4425 ES 1332 distance=74' 20490+4525 SMA 120 distance=74' 20492+4525 COU2646 distance=76' 20348+4531 ES 805 distance=77' 20466+4632 KUI 101 distance=77' 20489+4607 HJ 1581 distance=80' 20437+4651 TDS1096 distance=81' 20343+4520 ES 804BC distance=82' 20343+4520 ES 804AB distance=83' 20500+4521 ES 2702 distance=85' 20472+4427 COU2424 distance=85' 20494+4458 GRV 384 distance=85' 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 20420+4532 BRT2271 269 4.5
Show 20421+4532 BKO 157 240 8.9 1
Show 20427+4521 ES 1270 289 5.9 14
Show Deneb 20414+4517 H N 73 105 75.6 17
Show 20423+4549 BKO 158 EH 340 51.6 18
Show 20423+4549 BKO 158 EF 281 24.9 18
Show 20423+4549 BKO 158 EG 221 28.7 18
Show 20423+4549 BKO 158 EI 236 39.6 18
Show 20423+4549 STT 411 AB 349 31.8 18
Show 20423+4549 WAL 132 AC 357 71.2 18
Show 20423+4549 BKO 158 AF 143 41.0 18
Show 20423+4549 WAL 132 BC 4 40.1 19
Show 20423+4549 CTT 15 BD 178 86.6 19
Show 20423+4549 CTT 15 BE 141 87.9 19
Show 20440+4521 KPP3361 134 2.2 23
Show 20436+4514 CBL 85 166 17.7 25
Show 20394+4530 TDS1087 141 1.0 28
Show 20434+4501 ES 668 AB 68 5.2 35
Show 20434+4501 ES 668 AC 269 23.4 35
Show 20434+4501 FYM 322 AD 200 18.7 35
Show 20432+4458 BKO 159 37 13.2 36
Show 20433+4456 ES 2699 296 40.1 39
Show 20438+4610 TDT2503 68 0.5 43
Show 20464+4551 CVR 230 7 112.9 50
Show 20437+4619 HO 140 313 8.0 51
Show 20376+4504 HJ 1555 354 13.8 55
Show 20427+4627 TDS1092 315 0.9 56
Show 20473+4535 HO 280 75 11.7 56
Show 20461+4452 ES 30 57 17.1 59
Show 20459+4448 ES 2701 81 50.9 61
Show 20456+4621 HDS2955 289 0.4 62
Show 20432+4431 COU2422 236 1.3 62
Show 20386+4438 ES 667 185 9.8 65
Show 20485+4519 LDS2456 236 18.0 66
Show 20431+4637 BRT2273 308 4.7 67
Show 20388+4629 BRT2268 320 3.4 67
Show 20416+4424 COU2541 25 0.4 68
Show 20360+4555 STJ 103 338 1.3 69
Show 20489+4537 HDS2965 282 0.1 73
Show 20449+4425 ES 1332 325 7.0 74
Show 20490+4525 SMA 120 313 4.3 74
Show 20492+4525 COU2646 266 0.4 76
Show 20348+4531 ES 805 152 7.9 77
Show 20466+4632 KUI 101 112 0.3 77
Show 20489+4607 HJ 1581 170 22.4 80
Show 20437+4651 TDS1096 147 0.9 81
Show 20343+4520 ES 804 BC 128 2.2 82
Show 20343+4520 ES 804 AB 117 30.8 83
Show 20500+4521 ES 2702 348 8.6 85
Show 20472+4427 COU2424 255 0.5 85
Show 20494+4458 GRV 384 222 22.1 85

 
 
WDS 20420+4532 : COMPONENTS
 
 
  A
B pa=268.7°
sep=3.13"
 
 
20420+4532 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204203.23+453156.2 Mag 11.3 PmRA 23.00
PmDE -1.0
 
 
20420+4532 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204202.93+453156.1 Mag 11.6 PmRA -2.00
PmDE -4.0 Calc delta mag 0.3 Calc coord yes