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Current system
20176+4020
BRT 2259


Nearby doubles
7' : 20170+4017
CNT 5

8' : 20169+4022
BU 661AB

12' : 20177+4030
HDS2897

17' : 20184+4033
ARN 49

19' : 20163+4007
MLB1013

20' : 20158+4024
TDS1055

25' : 20178+3956
HJ 2951AB

26' : 20181+4044
STF2666AB

26' : 20155+4030
A 390

28' : 20183+3953
BKO 822

31' : 20184+3950
A 1424

34' : 20204+4021
TDT2186

34' : 20199+4000
MLB1015

35' : 20198+3958
MLB1014

35' : 20148+4035
TDT2118

38' : 20189+3945
COU2537

39' : 20207+4031
TDT2193

39' : 20168+3942
STF2663AB

39' : 20203+3958
BRT2260

43' : 20167+3938
HO 590AB

46' : 20158+3937
ES 1974

46' : 20210+4041
TDT2199

46' : 20144+4048
TDT2113

47' : 20192+3938
ES 2051

50' : 20136+4040
TDT2104

52' : 20133+4038
GRV 324



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.

20176+4020 BRT 2259

 
 
20h 17m 31.05s +40° 19' 21.4" P.A. 29.00 sep 1.4 mag 10.60,10.80 Sp A
 
 
Coord 2000 20176+4020 Discov num BRT2259 Comp Coord arcsec 2000 20 17 31.05 +40 19 21.4
Date first 1938 Date last 2015 Obs 3
Pa first 34 Pa last 29.2 P.A. Now (θ) 29.2°
Sep first 2.1 Sep last 1.385 Sep. Now (ρ) 1.385"
Mag pri 10.60 Mag sec 10.80 delta mag (ΔM) 0.2 Spectral class A (white)
Pri motion ra -002 Sec motion ra
Pri motion dec -004 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 2062333417392519296
 
 
WDS 20176+4020 BRT 2259 : 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
20176+4020 BRT2259 1975 2 32 1.8 10.60 10.80
20176+4020 BRT2259 2015 3 29 1.4 10.60 10.80 A 201731.05+401921.4

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

 
 
WDS 20176+4020 BRT 2259 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20176+4020 BRT 2259 : MEASURES
 
 
No records found.

 
 
WDS 20176+4020 : VIRTUAL EYEPIECE
 
 

20176+4020 BRT2259A mag 10.6 Sp A 20176+4020 BRT2259B sep 1.3 P.A. 23.10 mag 10.8 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 20176+4020 : ALADIN DSS IMAGE @ 20h 17m 31.05s +40° 19' 21.4"
 
 
 
 
WDS 20176+4020 BRT 2259 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20176+4020 BRT2259 distance=0' 20170+4017 CNT 5 distance=7' 20169+4022 BU 661AB distance=8' 20169+4022 BU 661AC distance=8' 20177+4030 HDS2897 distance=12' 20184+4033 ARN 49 distance=17' 20163+4007 MLB1013 distance=19' 20158+4024 TDS1055 distance=20' 20178+3956 HJ 2951AB distance=25' 20178+3956 FOX9014AC distance=25' 20181+4044 STF2666CD distance=25' 20181+4044 CHR 96Aa,Ab distance=26' 20181+4044 STF2666AB distance=26' 20181+4044 STF2666AC distance=26' 20181+4044 TAR 5AD distance=26' 20155+4030 A 390 distance=26' 20183+3953 BKO 822 distance=28' 20184+3950 A 1424 distance=31' 20204+4021 TDT2186 distance=34' 20199+4000 MLB1015 distance=34' 20198+3958 MLB1014 distance=35' 20148+4035 TDT2118 distance=35' 20189+3945 COU2537 distance=38' 20207+4031 TDT2193 distance=39' 20168+3942 STF2663AB distance=39' 20168+3942 CTT 21AC distance=39' 20168+3942 DAM1040AF distance=39' 20203+3958 BRT2260 distance=39' 20168+3942 DAM1040FG distance=39' 20167+3938 HO 590AB distance=43' 20167+3938 HO 590AC distance=43' 20158+3937 ES 1974 distance=46' 20210+4041 TDT2199 distance=46' 20144+4048 TDT2113 distance=46' 20192+3938 ES 2051 distance=47' 20136+4040 TDT2104 distance=50' 20133+4038 GRV 324 distance=52' 20137+4050 DOO 13 distance=53' 20222+4015 BU 665BC,D distance=54' 20222+4015 BU 665BC distance=54' 20199+3933 HO 593 distance=54' 20222+4015 BU 665A,BC (Sadr) distance=55' 20138+4055 TDT2106 distance=55' 20215+3950 SEI1103 distance=55' 20197+4108 STTA205 distance=56' 20187+4113 COU2640 distance=56' 20151+3929 MLB 982AB distance=57' 20151+3929 MLB 982BC distance=57' 20188+3924 SEI1078 distance=57' 20221+4042 ES 1676 distance=58' 20163+3924 SEI1051 distance=58' 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 20176+4020 BRT2259 29 1.4
Show 20170+4017 CNT 5 331 5.9 7
Show 20169+4022 BU 661 AB 69 12.3 8
Show 20169+4022 BU 661 AC 217 111.7 8
Show 20177+4030 HDS2897 273 0.3 12
Show 20184+4033 ARN 49 313 30.2 17
Show 20163+4007 MLB1013 160 4.0 19
Show 20158+4024 TDS1055 163 0.9 20
Show 20178+3956 HJ 2951 AB 125 10.8 25
Show 20178+3956 FOX9014 AC 61 24.4 25
Show 20181+4044 STF2666 CD 142 24.1 25
Show 20181+4044 CHR 96 Aa,Ab 151 0.1 26
Show 20181+4044 STF2666 AB 245 2.8 26
Show 20181+4044 STF2666 AC 207 34.0 26
Show 20181+4044 TAR 5 AD 181 49.6 26
Show 20155+4030 A 390 328 0.8 26
Show 20183+3953 BKO 822 60 7.1 28
Show 20184+3950 A 1424 46 1.1 31
Show 20204+4021 TDT2186 349 0.5 34
Show 20199+4000 MLB1015 89 4.0 34
Show 20198+3958 MLB1014 241 7.6 35
Show 20148+4035 TDT2118 312 0.4 35
Show 20189+3945 COU2537 295 0.8 38
Show 20207+4031 TDT2193 288 1.2 39
Show 20168+3942 STF2663 AB 322 5.4 39
Show 20168+3942 CTT 21 AC 188 103.0 39
Show 20168+3942 DAM1040 AF 123 22.3 39
Show 20203+3958 BRT2260 9 3.2 39
Show 20168+3942 DAM1040 FG 225 3.5 39
Show 20167+3938 HO 590 AB 207 3.5 43
Show 20167+3938 HO 590 AC 88 25.9 43
Show 20158+3937 ES 1974 160 2.9 46
Show 20210+4041 TDT2199 122 0.8 46
Show 20144+4048 TDT2113 181 0.5 46
Show 20192+3938 ES 2051 306 4.9 47
Show 20136+4040 TDT2104 161 0.9 50
Show 20133+4038 GRV 324 252 7.7 52
Show 20137+4050 DOO 13 258 3.0 53
Show 20222+4015 BU 665 BC,D 131 41.0 54
Show 20222+4015 BU 665 BC 302 1.9 54
Show 20199+3933 HO 593 313 5.0 54
Show Sadr 20222+4015 BU 665 A,BC 197 147.1 55
Show 20138+4055 TDT2106 358 0.5 55
Show 20215+3950 SEI1103 223 17.0 55
Show 20197+4108 STTA205 321 45.5 56
Show 20187+4113 COU2640 265 0.5 56
Show 20151+3929 MLB 982 AB 183 30.8 57
Show 20151+3929 MLB 982 BC 355 6.0 57
Show 20188+3924 SEI1078 45 17.7 57
Show 20221+4042 ES 1676 285 2.4 58
Show 20163+3924 SEI1051 148 22.3 58

 
 
WDS 20176+4020 : COMPONENTS
 
 
  A
B pa=23.1°
sep=1.31"
 
 
20176+4020 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 201731.05+401921.4 Mag 10.6 Spectral class A (white)
PmRA -2.00 PmDE -4.0
 
 
20176+4020 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 201731.10+401922.6 Mag 10.8 Calc delta mag 0.2
Calc coord yes