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Doubles in session


Current system
20309+0400
BAL 2538


Nearby doubles
35' : 20324+0426
A 2281

36' : 20286+0351
HJ 2967

38' : 20294+0330
HJ 2970

39' : 20321+0330
J 2573

41' : 20302+0321
DOO 87

41' : 20283+0351
BAL2533

44' : 20291+0325
HJ 2968

44' : 20311+0444
UC 4205

46' : 20315+0444
BAL2966

49' : 20307+0311
BAL2029

57' : 20285+0443
J 3220

58' : 20340+0433
A 2282

60' : 20327+0453
J 2314AB

68' : 20278+0311
HJ 917

68' : 20274+0317
BAL2025

70' : 20347+0321
CRC 38

72' : 20321+0251
BAL2030

74' : 20312+0513
AG 257

77' : 20295+0514
UC 4199

81' : 20341+0256
BAL2031

85' : 20253+0355
UC 4175

86' : 20360+0411
J 2192

91' : 20316+0530
A 395

91' : 20331+0525
TDT2364

95' : 20348+0514
SCJ 26

96' : 20298+0227
BAL2027



Selections
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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.

20309+0400 BAL 2538

 
 
20h 30m 53.46s +03° 59' 59.2" P.A. 202.00 sep 10.8 mag 11.11,12.80
 
 
Coord 2000 20309+0400 Discov num BAL2538 Comp Coord arcsec 2000 20 30 53.46 +03 59 59.2
Date first 1910 Date last 2014 Obs 9
Pa first 202 Pa last 201.6 P.A. Now (θ) 201.6°
Sep first 10.7 Sep last 10.819 Sep. Now (ρ) 10.819"
Mag pri 11.11 Mag sec 12.80 delta mag (ΔM) 1.69 Spectral class
Pri motion ra -001 Sec motion ra -009
Pri motion dec -014 Sec motion dec -014
Notes
rPM=0.481
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Tycho2 0518-01514-1 Gaia DR2 4245278407035954944
 
 
WDS 20309+0400 BAL 2538 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Bal1924 Ma - Baillaud, R. 1924JO......7..117B
Bal1924 J. Obs. 7, 117, 1924
Bal1925 Ma - Baillaud, R. 1925JO......8...53B
Bal1925 J. Obs. 8, 53, 1925
Bal1925b Ma j Baillaud, R. 1925JO......8...56B
Bal1925b J. Obs. 8, 56, 1925
Bal1926 Ma - Baillaud, R. 1926JO......9..129P
Bal1926 J. Obs. 9, 129, 1926
Bal1937A Ma - Baillaud, R. 1937AnLei..18....1S
Bal1937A cited by Strand (Ann. Sterrew. Leiden 18, 1937)
Bal1944 C - Baillaud, R. 1944AnBes...3...33B
Bal1944 +Pa Ann. Obs. Besancon New Ser. 3, 33, 1943
Bal1944 +Po
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20309+0400 BAL2538 2006 3 202 10.8 11.11 12.80 D 203053.46+035959.2
20309+0400 BAL2538 2010 6 202 10.8 11.11 12.80 203053.46+035959.2
20309+0400 BAL2538 2014 9 202 10.8 11.11 12.80 203053.46+035959.2

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

 
 
WDS 20309+0400 BAL 2538 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20309+0400 BAL 2538 : MEASURES
 
 
No records found.

 
 
WDS 20309+0400 : VIRTUAL EYEPIECE
 
 

20309+0400 BAL2538A mag 11.11 20309+0400 BAL2538B sep 10.8 P.A. 201.60 mag 12.8 virtual eyepiece
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Radius:
Components only
 
 
WDS 20309+0400 : ALADIN DSS IMAGE @ 20h 30m 53.46s +03° 59' 59.2"
 
 
 
 
WDS 20309+0400 BAL 2538 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20309+0400 BAL2538 distance=0' 20324+0426 A 2281 distance=35' 20286+0351 HJ 2967 distance=36' 20294+0330 HJ 2970 distance=38' 20321+0330 J 2573 distance=39' 20302+0321 DOO 87 distance=41' 20283+0351 BAL2533 distance=41' 20291+0325 HJ 2968 distance=44' 20311+0444 UC 4205 distance=44' 20315+0444 BAL2966 distance=46' 20307+0311 BAL2029 distance=49' 20285+0443 J 3220 distance=57' 20340+0433 A 2282 distance=58' 20327+0453 J 2314AB distance=60' 20327+0453 J 2314AC distance=60' 20278+0311 HJ 917 distance=68' 20274+0317 BAL2025 distance=68' 20347+0321 CRC 38 distance=70' 20321+0251 BAL2030 distance=72' 20312+0513 AG 257 distance=74' 20295+0514 UC 4199 distance=77' 20341+0256 BAL2031 distance=81' 20253+0355 UC 4175 distance=85' 20360+0411 J 2192 distance=86' 20316+0530 A 395 distance=91' 20331+0525 TDT2364 distance=91' 20348+0514 SCJ 26 distance=95' 20298+0227 BAL2027 distance=96' 20335+0527 STF2696AB distance=96' 20335+0527 STF2696AC distance=96' 20306+0224 BAL2028 distance=96' 20257+0304 BAL2024 distance=97' 20253+0453 KPP4195AB distance=100' 20358+0508 BAL2968 distance=100' 20367+0447 CBL 528 distance=100' 20373+0332 BAL2539 distance=100' 20370+0452 SMA 118 distance=104' 20353+0239 HJ 2981 distance=105' 20247+0302 J 1342 distance=108' 20310+0211 J 561 distance=109' 20383+0408 BAL2541 distance=111' 20379+0325 BAL2540 distance=111' 20351+0218 UC 4224 distance=120' 20251+0233 BAL2023 distance=123' 20330+0201 TDT2361 distance=123' 20382+0459 BAL2970 distance=124' 20302+0156 BAL1562 distance=125' 20271+0551 HJ 2963 distance=126' 20238+0506 J 556 distance=127' 20251+0225 LDS4841 distance=129' 20246+0531 BU 664AB distance=132' 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 20309+0400 BAL2538 202 10.8
Show 20324+0426 A 2281 63 1.9 35
Show 20286+0351 HJ 2967 131 7.1 36
Show 20294+0330 HJ 2970 180 12.0 38
Show 20321+0330 J 2573 151 4.0 39
Show 20302+0321 DOO 87 33 11.9 41
Show 20283+0351 BAL2533 256 19.0 41
Show 20291+0325 HJ 2968 50 15.3 44
Show 20311+0444 UC 4205 254 48.5 44
Show 20315+0444 BAL2966 117 10.4 46
Show 20307+0311 BAL2029 141 7.5 49
Show 20285+0443 J 3220 181 3.9 57
Show 20340+0433 A 2282 166 0.2 58
Show 20327+0453 J 2314 AB 70 4.9 60
Show 20327+0453 J 2314 AC 138 19.0 60
Show 20278+0311 HJ 917 37 12.8 68
Show 20274+0317 BAL2025 94 10.2 68
Show 20347+0321 CRC 38 300 10.5 70
Show 20321+0251 BAL2030 286 10.8 72
Show 20312+0513 AG 257 75 1.7 74
Show 20295+0514 UC 4199 240 54.1 77
Show 20341+0256 BAL2031 334 17.4 81
Show 20253+0355 UC 4175 87 20.7 85
Show 20360+0411 J 2192 18 4.8 86
Show 20316+0530 A 395 160 0.7 91
Show 20331+0525 TDT2364 126 1.9 91
Show 20348+0514 SCJ 26 88 25.1 95
Show 20298+0227 BAL2027 171 4.2 96
Show 20335+0527 STF2696 AB 298 0.5 96
Show 20335+0527 STF2696 AC 348 13.7 96
Show 20306+0224 BAL2028 196 9.5 96
Show 20257+0304 BAL2024 70 16.1 97
Show 20253+0453 KPP4195 AB 16 11.7 100
Show 20358+0508 BAL2968 10 13.9 100
Show 20367+0447 CBL 528 234 20.5 100
Show 20373+0332 BAL2539 77 130.2 100
Show 20370+0452 SMA 118 125 19.1 104
Show 20353+0239 HJ 2981 5 12.9 105
Show 20247+0302 J 1342 333 2.4 108
Show 20310+0211 J 561 176 4.3 109
Show 20383+0408 BAL2541 78 15.1 111
Show 20379+0325 BAL2540 94 16.1 111
Show 20351+0218 UC 4224 220 16.1 120
Show 20251+0233 BAL2023 330 7.4 123
Show 20330+0201 TDT2361 37 0.5 123
Show 20382+0459 BAL2970 35 12.5 124
Show 20302+0156 BAL1562 308 9.0 125
Show 20271+0551 HJ 2963 209 9.5 126
Show 20238+0506 J 556 187 2.9 127
Show 20251+0225 LDS4841 246 44.6 129
Show 20246+0531 BU 664 AB 287 9.0 132

 
 
WDS 20309+0400 : COMPONENTS
 
 
  A
B pa=201.6°
sep=10.82"
 
 
20309+0400 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 203053.46+035959.2 Mag 11.11 PmRA -1.00
PmDE -14.0 Tycho2 0518-01514-1
Tycho2
Tycho2 0518-01514-1 Pflag RAmdeg 307.72275598 DEmdeg 3.99978332
PmRA -4.0 PmDE -17.2 E RAmdeg 48 E DEmdeg 55
E pmRA 1.8 E pmDE 1.8 EpRAm 1980.13 EpDEm 1974.93
Num 4 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 1.0
Q pmDE 1.1 BTmag 11.974 E BTmag 0.121 VTmag 11.112
E VTmag 0.089 Prox 999 TYC T HIP
CCDM RAdeg 307.72277028 DEdeg 3.99983389 EpRA 1990 1.62
EpDE 1990 1.38 E RAdeg 54.2 E DEdeg 67.0 Posflg
Corr -0.1
 
 
20309+0400 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 203053.19+035949.1 Mag 12.8 PmRA -9.00
PmDE -14.0 Calc delta mag 1.69 Calc coord yes