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Doubles in session


Current system
20272+2049
BRT 2476


Nearby doubles
27' : 20284+2110
GRV 342

48' : 20306+2058
DAM 272

50' : 20314+2054
J 844

52' : 20310+2054
GCB 55

52' : 20307+2109
COU 222

54' : 20310+2036
BU 363AB

59' : 20231+2052
A 288

60' : 20314+2101
DAM 215

63' : 20232+2122
LDS1041

65' : 20317+2055
GCB 58

67' : 20320+2056
DAM 216

67' : 20310+2007
HJ 2974

68' : 20230+2020
HDS2911

68' : 20228+2023
J 3081

69' : 20227+2023
J 3080

70' : 20267+1940
GWP2949

74' : 20222+2116
BRT2470

75' : 20278+1935
TDT2296

82' : 20241+2156
HDS2915

82' : 20224+2006
BUP9009

83' : 20306+2158
BRT2478

86' : 20244+1935
STF2679AB

91' : 20237+2203
BRT2471

91' : 20336+2106
ARN 83

91' : 20306+1932
UC 251

92' : 20336+2111
HJ 2979AB



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.

20272+2049 BRT 2476

 
 
20h 27m 17.81s +20° 48' 55.6" P.A. 77.00 sep 5.6 mag 12.20,13.10
 
 
Coord 2000 20272+2049 Discov num BRT2476 Comp Coord arcsec 2000 20 27 17.81 +20 48 55.6
Date first 1894 Date last 2015 Obs 11
Pa first 68 Pa last 77.1 P.A. Now (θ) 77.1°
Sep first 3.9 Sep last 5.614 Sep. Now (ρ) 5.614"
Mag pri 12.20 Mag sec 13.10 delta mag (ΔM) 0.9 Spectral class
Pri motion ra -019 Sec motion ra +007
Pri motion dec -002 Sec motion dec -003
Notes
rPM=1.362
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Gaia DR2 1816872561798697216
 
 
WDS 20272+2049 BRT 2476 : 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
20272+2049 BRT2476 2006 5 77 5.9 12.54 12.64 DB 202718.18+204857.2
20272+2049 BRT2476 2013 7 77 5.6 12.20 13.10 202717.81+204855.6
20272+2049 BRT2476 2015 8 77 5.6 12.20 13.10 202717.81+204855.6

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

 
 
WDS 20272+2049 BRT 2476 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20272+2049 BRT 2476 : MEASURES
 
 
No records found.

 
 
WDS 20272+2049 : VIRTUAL EYEPIECE
 
 

20272+2049 BRT2476A mag 12.2 20272+2049 BRT2476B sep 5.3 P.A. 76.20 mag 13.1 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 20272+2049 : ALADIN DSS IMAGE @ 20h 27m 17.81s +20° 48' 55.6"
 
 
 
 
WDS 20272+2049 BRT 2476 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20272+2049 BRT2476 distance=0' 20284+2110 GRV 342 distance=27' 20306+2058 DAM 272 distance=48' 20314+2054 J 844 distance=50' 20310+2054 GCB 55 distance=52' 20307+2109 COU 222 distance=52' 20310+2036 BU 363AB distance=54' 20310+2036 BU 363AC distance=54' 20231+2052 A 288 distance=59' 20314+2101 DAM 215 distance=60' 20314+2049 J 3091A,BC distance=60' 20314+2049 DAM1459BC distance=61' 20232+2122 LDS1041 distance=63' 20317+2055 GCB 58 distance=65' 20320+2056 DAM 216 distance=67' 20310+2007 HJ 2974 distance=67' 20230+2020 HDS2911 distance=68' 20228+2023 J 3081 distance=68' 20227+2023 J 3080 distance=69' 20267+1940 GWP2949 distance=70' 20222+2116 BRT2470 distance=74' 20278+1935 TDT2296 distance=75' 20241+2156 HDS2915 distance=82' 20224+2006 BUP9009 distance=82' 20306+2158 BRT2478 distance=83' 20244+1935 STF2679AB distance=86' 20244+1935 STF2679AC distance=86' 20237+2203 BRT2471 distance=91' 20336+2106 ARN 83 distance=91' 20306+1932 UC 251 distance=91' 20336+2111 HJ 2979AB distance=92' 20336+2111 HJ 2979AC distance=92' 20302+1925 FOX 254CD distance=93' 20302+1925 BU 987AB distance=94' 20302+1925 S 752AC distance=94' 20302+1925 FOX 254AE distance=94' 20338+2125 TDS1083 distance=99' 20264+2227 BRT2526 distance=99' 20237+2214 BRT2472 distance=100' 20280+2229 GRV 341 distance=101' 20205+2137 TDT2190 distance=107' 20327+1932 OSO 126AB distance=109' 20327+1932 OSO 126AC distance=109' 20327+1932 OSO 126AD distance=109' 20327+1932 OSO 126AE distance=109' 20327+1932 OSO 126AF distance=109' 20243+1909 HU 361 distance=109' 20318+2219 ROE 12 distance=110' 20209+1948 HJ 2954BC distance=110' 20209+1948 HJ 2954AB distance=110' 20312+2227 J 564 distance=112' 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 20272+2049 BRT2476 77 5.6
Show 20284+2110 GRV 342 97 37.2 27
Show 20306+2058 DAM 272 333 7.2 48
Show 20314+2054 J 844 117 4.0 50
Show 20310+2054 GCB 55 149 6.7 52
Show 20307+2109 COU 222 4 1.2 52
Show 20310+2036 BU 363 AB 88 5.7 54
Show 20310+2036 BU 363 AC 206 55.9 54
Show 20231+2052 A 288 296 0.2 59
Show 20314+2101 DAM 215 136 4.5 60
Show 20314+2049 J 3091 A,BC 123 6.1 60
Show 20314+2049 DAM1459 BC 7 1.7 61
Show 20232+2122 LDS1041 134 6.0 63
Show 20317+2055 GCB 58 109 4.3 65
Show 20320+2056 DAM 216 76 11.8 67
Show 20310+2007 HJ 2974 297 14.4 67
Show 20230+2020 HDS2911 333 0.4 68
Show 20228+2023 J 3081 6.2 68
Show 20227+2023 J 3080 292 7.4 69
Show 20267+1940 GWP2949 267 111.9 70
Show 20222+2116 BRT2470 221 1.9 74
Show 20278+1935 TDT2296 359 1.6 75
Show 20241+2156 HDS2915 343 1.3 82
Show 20224+2006 BUP9009 47.1 82
Show 20306+2158 BRT2478 297 3.6 83
Show 20244+1935 STF2679 AB 77 24.7 86
Show 20244+1935 STF2679 AC 150 38.6 86
Show 20237+2203 BRT2471 192 4.6 91
Show 20336+2106 ARN 83 75 58.6 91
Show 20306+1932 UC 251 38 39.9 91
Show 20336+2111 HJ 2979 AB 63 10.4 92
Show 20336+2111 HJ 2979 AC 354 18.9 92
Show 20302+1925 FOX 254 CD 301 35.0 93
Show 20302+1925 BU 987 AB 128 2.5 94
Show 20302+1925 S 752 AC 288 106.3 94
Show 20302+1925 FOX 254 AE 70 21.2 94
Show 20338+2125 TDS1083 354 2.5 99
Show 20264+2227 BRT2526 109 3.5 99
Show 20237+2214 BRT2472 209 3.2 100
Show 20280+2229 GRV 341 159 76.3 101
Show 20205+2137 TDT2190 9 0.7 107
Show 20327+1932 OSO 126 AB 198 6.9 109
Show 20327+1932 OSO 126 AC 275 10.3 109
Show 20327+1932 OSO 126 AD 170 23.2 109
Show 20327+1932 OSO 126 AE 338 25.4 109
Show 20327+1932 OSO 126 AF 161 21.8 109
Show 20243+1909 HU 361 198 0.6 109
Show 20318+2219 ROE 12 30 10.9 110
Show 20209+1948 HJ 2954 BC 292 23.1 110
Show 20209+1948 HJ 2954 AB 303 3.1 110
Show 20312+2227 J 564 308 2.5 112

 
 
WDS 20272+2049 : COMPONENTS
 
 
  A
B pa=76.2°
sep=5.27"
 
 
20272+2049 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 202717.81+204855.6 Mag 12.2 PmRA -19.00
PmDE -2.0
 
 
20272+2049 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202718.17+204856.9 Mag 13.1 PmRA 7.00
PmDE -3.0 Calc delta mag 0.9 Calc coord yes