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Doubles in session


Current system
20306+2158
BRT 2478


Nearby doubles
27' : 20318+2219
ROE 12

31' : 20312+2227
J 564

39' : 20324+2226
ROE 13

47' : 20280+2229
GRV 341

49' : 20307+2109
COU 222

56' : 20339+2227
GRV 353

56' : 20338+2125
TDS1083

56' : 20284+2110
GRV 342

58' : 20314+2101
DAM 215

60' : 20329+2246
GRV 352

61' : 20306+2058
DAM 272

63' : 20310+2054
GCB 55

64' : 20336+2111
HJ 2979AB

65' : 20314+2054
J 844

65' : 20264+2227
BRT2526

65' : 20320+2056
DAM 216

67' : 20335+2250
HDS2938

67' : 20345+2235
BRT2479

67' : 20336+2106
ARN 83

68' : 20317+2055
GCB 58

70' : 20304+2307
RAO 436

74' : 20355+2225
STJ 39

76' : 20295+2311
KPP3358

79' : 20305+2316
POU4538

81' : 20323+2314
POU4586

82' : 20310+2036
BU 363AB



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.

20306+2158 BRT 2478

 
 
20h 30m 34.04s +21° 57' 43.2" P.A. 297.00 sep 3.6 mag 9.90,10.00
 
 
Coord 2000 20306+2158 Discov num BRT2478 Comp Coord arcsec 2000 20 30 34.04 +21 57 43.2
Date first 1892 Date last 2015 Obs 16
Pa first 299 Pa last 297.1 P.A. Now (θ) 297.1°
Sep first 3.3 Sep last 3.553 Sep. Now (ρ) 3.553"
Mag pri 9.90 Mag sec 10.00 delta mag (ΔM) 0.1 Spectral class
Pri motion ra +008 Sec motion ra +001
Pri motion dec -006 Sec motion dec -005
Notes N (See Notes)
rPM=0.707
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Vulpecula Gaia DR2 1818652636761590016
 
 
WDS 20306+2158 BRT 2478 : NOTES
 
 
discov_num notes refcode
BRT2478 J 2597.
 
 
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
20306+2158 BRT2478 2000 8 297 3.5 9.90 10.00 N 203034.04+215743.2
20306+2158 BRT2478 2010 9 297 3.5 9.90 10.00 N 203034.04+215743.2
20306+2158 BRT2478 2011 10 297 3.6 9.90 10.00 N 203034.04+215743.2
20306+2158 BRT2478 2013 15 297 3.5 9.90 10.00 N 203034.04+215743.2
20306+2158 BRT2478 2015 16 297 3.6 9.90 10.00 N 203034.04+215743.2

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

 
 
WDS 20306+2158 BRT 2478 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20306+2158 BRT 2478 : MEASURES
 
 
No records found.

 
 
WDS 20306+2158 : VIRTUAL EYEPIECE
 
 

20306+2158 BRT2478A mag 9.9 20306+2158 BRT2478B sep 3.4 P.A. 298.90 mag 10 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20306+2158 : ALADIN DSS IMAGE @ 20h 30m 34.04s +21° 57' 43.2"
 
 
 
 
WDS 20306+2158 BRT 2478 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20306+2158 BRT2478 distance=0' 20318+2219 ROE 12 distance=27' 20312+2227 J 564 distance=31' 20324+2226 ROE 13 distance=39' 20280+2229 GRV 341 distance=47' 20307+2109 COU 222 distance=49' 20339+2227 GRV 353 distance=56' 20338+2125 TDS1083 distance=56' 20284+2110 GRV 342 distance=56' 20314+2101 DAM 215 distance=58' 20329+2246 GRV 352 distance=60' 20306+2058 DAM 272 distance=61' 20310+2054 GCB 55 distance=63' 20336+2111 HJ 2979AB distance=64' 20336+2111 HJ 2979AC distance=64' 20314+2054 J 844 distance=65' 20264+2227 BRT2526 distance=65' 20320+2056 DAM 216 distance=65' 20335+2250 HDS2938 distance=67' 20345+2235 BRT2479 distance=67' 20336+2106 ARN 83 distance=67' 20317+2055 GCB 58 distance=68' 20314+2049 J 3091A,BC distance=68' 20314+2049 DAM1459BC distance=68' 20304+2307 RAO 436 distance=70' 20355+2225 STJ 39 distance=74' 20295+2311 KPP3358 distance=76' 20305+2316 POU4538 distance=79' 20323+2314 POU4586 distance=81' 20310+2036 BU 363AB distance=82' 20310+2036 BU 363AC distance=82' 20272+2049 BRT2476 distance=83' 20364+2213 J 1178 distance=83' 20256+2244 GRV 339 distance=84' 20328+2316 POU4604 distance=85' 20293+2321 POU4524 distance=86' 20310+2323 POU4548 distance=86' 20294+2322 POU4526 distance=87' 20260+2257 BRT2475 distance=87' 20288+2322 POU4518AB distance=88' 20288+2322 POU4519AC distance=88' 20261+2300 COU 221 distance=88' 20337+2316 TDT2372AB distance=89' 20337+2316 POU4647AC distance=89' 20285+2323 POU4515 distance=91' 20241+2156 HDS2915 distance=91' 20257+2258 BRT2474 distance=91' 20301+2328 POU4533 distance=92' 20287+2325 POU4516AB distance=92' 20287+2325 BKO 449AC distance=92' 20326+2325 POU4594 distance=92' 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 20306+2158 BRT2478 297 3.6
Show 20318+2219 ROE 12 30 10.9 27
Show 20312+2227 J 564 308 2.5 31
Show 20324+2226 ROE 13 41 6.4 39
Show 20280+2229 GRV 341 159 76.3 47
Show 20307+2109 COU 222 4 1.2 49
Show 20339+2227 GRV 353 82 19.7 56
Show 20338+2125 TDS1083 354 2.5 56
Show 20284+2110 GRV 342 97 37.2 56
Show 20314+2101 DAM 215 136 4.5 58
Show 20329+2246 GRV 352 293 38.3 60
Show 20306+2058 DAM 272 333 7.2 61
Show 20310+2054 GCB 55 149 6.7 63
Show 20336+2111 HJ 2979 AB 63 10.4 64
Show 20336+2111 HJ 2979 AC 354 18.9 64
Show 20314+2054 J 844 117 4.0 65
Show 20264+2227 BRT2526 109 3.5 65
Show 20320+2056 DAM 216 76 11.8 65
Show 20335+2250 HDS2938 297 1.5 67
Show 20345+2235 BRT2479 350 5.1 67
Show 20336+2106 ARN 83 75 58.6 67
Show 20317+2055 GCB 58 109 4.3 68
Show 20314+2049 J 3091 A,BC 123 6.1 68
Show 20314+2049 DAM1459 BC 7 1.7 68
Show 20304+2307 RAO 436 126 2.7 70
Show 20355+2225 STJ 39 246 1.2 74
Show 20295+2311 KPP3358 49 4.5 76
Show 20305+2316 POU4538 196 14.2 79
Show 20323+2314 POU4586 259 9.1 81
Show 20310+2036 BU 363 AB 88 5.7 82
Show 20310+2036 BU 363 AC 206 55.9 82
Show 20272+2049 BRT2476 77 5.6 83
Show 20364+2213 J 1178 328 3.9 83
Show 20256+2244 GRV 339 312 15.5 84
Show 20328+2316 POU4604 138 15.7 85
Show 20293+2321 POU4524 290 11.9 86
Show 20310+2323 POU4548 8 14.3 86
Show 20294+2322 POU4526 178 9.1 87
Show 20260+2257 BRT2475 280 4.9 87
Show 20288+2322 POU4518 AB 324 20.5 88
Show 20288+2322 POU4519 AC 266 18.3 88
Show 20261+2300 COU 221 339 1.5 88
Show 20337+2316 TDT2372 AB 341 2.6 89
Show 20337+2316 POU4647 AC 207 11.2 89
Show 20285+2323 POU4515 223 12.8 91
Show 20241+2156 HDS2915 343 1.3 91
Show 20257+2258 BRT2474 103 3.3 91
Show 20301+2328 POU4533 359 18.3 92
Show 20287+2325 POU4516 AB 227 17.1 92
Show 20287+2325 BKO 449 AC 311 7.6 92
Show 20326+2325 POU4594 215 18.9 92

 
 
WDS 20306+2158 : COMPONENTS
 
 
  A
B pa=298.9°
sep=3.35"
 
 
20306+2158 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 203034.04+215743.2 Mag 9.9 PmRA 8.00
PmDE -6.0
 
 
20306+2158 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 203033.83+215744.8 Mag 10 PmRA 1.00
PmDE -5.0 Calc delta mag 0.1 Calc coord yes