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Current system
20568+4335
BRT 1957


Nearby doubles
4' : 20565+4333
BRT1139

13' : 20559+4345
COU2543

18' : 20573+4319
ES 1450

21' : 20553+4322
LDS2468

22' : 20584+4326
ES 1451

26' : 20590+4330
LDS2476

28' : 20564+4308
COU2544

30' : 20595+4339
LDS2478

37' : 20598+4321
LDS2479

38' : 20535+4328
LDS2465

40' : 20584+4303
ES 1575

42' : 20568+4254
ENG 77AB

43' : 20590+4259
LDS2475

47' : 20592+4257
ES 1576

52' : 20524+4314
LDS2462

53' : 20578+4425
LDS2474

53' : 20520+4346
STT 416AB

54' : 20556+4243
BRT2282

56' : 20530+4258
COU2542

56' : 20583+4428
RBR 50

59' : 20519+4309
GRV 389

59' : 20517+4317
LDS2461

62' : 20532+4423
LSC 94

62' : 21015+4301
TDT2698

63' : 20569+4233
GRV 399

63' : 20596+4432
LDS2477



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.

20568+4335 BRT 1957

 
 
20h 56m 44.51s +43° 35' 10.6" P.A. 177.00 sep 1.1 mag 10.55,10.72
 
 
Coord 2000 20568+4335 Discov num BRT1957 Comp Coord arcsec 2000 20 56 44.51 +43 35 10.6
Date first 1934 Date last 2015 Obs 4
Pa first 174 Pa last 176.7 P.A. Now (θ) 176.7°
Sep first 1.0 Sep last 1.132 Sep. Now (ρ) 1.132"
Mag pri 10.55 Mag sec 10.72 delta mag (ΔM) 0.17 Spectral class
Pri motion ra -007 Sec motion ra -007
Pri motion dec -013 Sec motion dec -013
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3179-00212-1 Gaia DR2 2162119766974350592
 
 
WDS 20568+4335 BRT 1957 : 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
20568+4335 BRT1957 1991 3 175 1.2 10.55 10.72 205644.51+433510.6
20568+4335 BRT1957 2015 4 177 1.1 10.55 10.72 205644.51+433510.6

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

 
 
WDS 20568+4335 BRT 1957 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20568+4335 BRT 1957 : MEASURES
 
 
No records found.

 
 
WDS 20568+4335 : VIRTUAL EYEPIECE
 
 

20568+4335 BRT1957A mag 10.55 20568+4335 BRT1957B sep 1.1 P.A. 177.60 mag 10.72 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 20568+4335 : ALADIN DSS IMAGE @ 20h 56m 44.51s +43° 35' 10.6"
 
 
 
 
WDS 20568+4335 BRT 1957 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20568+4335 BRT1957 distance=0' 20565+4333 BRT1139 distance=4' 20559+4345 COU2543 distance=13' 20573+4319 ES 1450 distance=18' 20553+4322 LDS2468 distance=21' 20584+4326 ES 1451 distance=22' 20590+4330 LDS2476 distance=26' 20564+4308 COU2544 distance=28' 20595+4339 LDS2478 distance=30' 20598+4321 LDS2479 distance=37' 20535+4328 LDS2465 distance=38' 20584+4303 ES 1575 distance=40' 20568+4254 ENG 77CD distance=40' 20568+4254 ENG 77BC distance=41' 20568+4254 ENG 77AB distance=42' 20568+4254 ENG 77AC distance=42' 20590+4259 LDS2475 distance=43' 20592+4257 ES 1576 distance=47' 20524+4314 LDS2462 distance=52' 20578+4425 LDS2474 distance=53' 20520+4346 SKF2740BC distance=53' 20520+4346 STT 416AB distance=53' 20556+4243 BRT2282 distance=54' 20530+4258 COU2542 distance=56' 20583+4428 RBR 50 distance=56' 20519+4309 GRV 389 distance=59' 20517+4317 LDS2461 distance=59' 20532+4423 LSC 94 distance=62' 21015+4301 TDT2698 distance=62' 20569+4233 GRV 399 distance=63' 20596+4432 LDS2477 distance=63' 20567+4439 BRT2283 distance=64' 21018+4411 HO 600 distance=66' 20553+4231 STT 423 distance=67' 20574+4443 LDS2473 distance=69' 20579+4442 COU2649 distance=69' 20512+4415 CHN 31 distance=72' 20525+4430 BRT2279 distance=72' 20565+4447 TOB 203 distance=72' 20563+4447 ES 675AB distance=72' 20563+4447 ES 675BC distance=72' 20558+4448 ES 674 distance=74' 20538+4443 LDS5914 distance=75' 20574+4451 LDS2472 distance=76' 20565+4452 LDS2470 distance=78' 20501+4404 STT 595AB distance=78' 20501+4404 STG 9AC distance=78' 20501+4404 FYM 92AD distance=78' 20501+4404 FYM 92AE distance=78' 20501+4404 FYM 92AF distance=78' 20598+4225 CLZ 78 distance=78' 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 20568+4335 BRT1957 177 1.1
Show 20565+4333 BRT1139 175 3.6 4
Show 20559+4345 COU2543 222 1.6 13
Show 20573+4319 ES 1450 162 4.7 18
Show 20553+4322 LDS2468 107 60.0 21
Show 20584+4326 ES 1451 101 8.6 22
Show 20590+4330 LDS2476 65 3.0 26
Show 20564+4308 COU2544 160 0.4 28
Show 20595+4339 LDS2478 125 2.2 30
Show 20598+4321 LDS2479 287 2.0 37
Show 20535+4328 LDS2465 41 12.1 38
Show 20584+4303 ES 1575 356 5.3 40
Show 20568+4254 ENG 77 CD 356 92.9 40
Show 20568+4254 ENG 77 BC 69 102.7 41
Show 20568+4254 ENG 77 AB 328 100.0 42
Show 20568+4254 ENG 77 AC 17 125.8 42
Show 20590+4259 LDS2475 90 12.2 43
Show 20592+4257 ES 1576 350 3.7 47
Show 20524+4314 LDS2462 265 39.5 52
Show 20578+4425 LDS2474 235 14.5 53
Show 20520+4346 SKF2740 BC 192 73.4 53
Show 20520+4346 STT 416 AB 117 9.6 53
Show 20556+4243 BRT2282 276 2.5 54
Show 20530+4258 COU2542 199 0.1 56
Show 20583+4428 RBR 50 76 0.4 56
Show 20519+4309 GRV 389 190 61.9 59
Show 20517+4317 LDS2461 217 32.6 59
Show 20532+4423 LSC 94 183 0.3 62
Show 21015+4301 TDT2698 6 0.6 62
Show 20569+4233 GRV 399 6 64.8 63
Show 20596+4432 LDS2477 285 8.0 63
Show 20567+4439 BRT2283 339 6.0 64
Show 21018+4411 HO 600 98 2.1 66
Show 20553+4231 STT 423 76 2.7 67
Show 20574+4443 LDS2473 119 15.7 69
Show 20579+4442 COU2649 143 0.6 69
Show 20512+4415 CHN 31 47 6.7 72
Show 20525+4430 BRT2279 5 4.5 72
Show 20565+4447 TOB 203 329 15.8 72
Show 20563+4447 ES 675 AB 272 97.4 72
Show 20563+4447 ES 675 BC 108 3.7 72
Show 20558+4448 ES 674 94 5.6 74
Show 20538+4443 LDS5914 124 6.2 75
Show 20574+4451 LDS2472 254 1.7 76
Show 20565+4452 LDS2470 306 13.5 78
Show 20501+4404 STT 595 AB 48 55.4 78
Show 20501+4404 STG 9 AC 83 102.7 78
Show 20501+4404 FYM 92 AD 242 51.8 78
Show 20501+4404 FYM 92 AE 190 35.2 78
Show 20501+4404 FYM 92 AF 80 46.9 78
Show 20598+4225 CLZ 78 347 38.2 78

 
 
WDS 20568+4335 : COMPONENTS
 
 
  A
B pa=177.6°
sep=1.13"
 
 
20568+4335 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205644.51+433510.6 Mag 10.55 PmRA -7.00
PmDE -13.0 Tycho2 3179-00212-1 DM BD+43 3769
Tycho2
Tycho2 3179-00212-1 Pflag P RAmdeg 314.18545793 DEmdeg 43.58626440
PmRA -7.2 PmDE -12.7 E RAmdeg 28 E DEmdeg 28
E pmRA 1.8 E pmDE 1.6 EpRAm 1989.25 EpDEm 1988.82
Num 3 Q RAmdeg 0.5 Q DEmdeg 0.6 Q pmRA 0.6
Q pmDE 0.6 BTmag 10.900 E BTmag 0.043 VTmag 10.553
E VTmag 0.044 Prox 12 TYC T HIP
CCDM RAdeg 314.18546333 DEdeg 43.58643139 EpRA 1990 1.68
EpDE 1990 1.76 E RAdeg 27.8 E DEdeg 27.5 Posflg D
Corr 0.1
 
 
20568+4335 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205644.51+433509.5 Mag 10.72 PmRA -7.00
PmDE -13.0 Tycho2 3179-00212-2 Calc delta mag 0.17 Calc coord yes
Tycho2
Tycho2 3179-00212-2 Pflag P RAmdeg 314.18545793 DEmdeg 43.58626440
PmRA -7.2 PmDE -12.7 E RAmdeg 28 E DEmdeg 28
E pmRA 1.8 E pmDE 1.6 EpRAm 1989.25 EpDEm 1988.82
Num 3 Q RAmdeg 0.5 Q DEmdeg 0.6 Q pmRA 0.6
Q pmDE 0.6 BTmag 11.142 E BTmag 0.051 VTmag 10.717
E VTmag 0.054 Prox 12 TYC T HIP
CCDM RAdeg 314.18550667 DEdeg 43.58608806 EpRA 1990 1.68
EpDE 1990 1.76 E RAdeg 33.3 E DEdeg 32.6 Posflg D
Corr 0.0