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Doubles in session


Current system
20307+0311
BAL 2029


Nearby doubles
14' : 20302+0321
DOO 87

28' : 20294+0330
HJ 2970

28' : 20291+0325
HJ 2968

29' : 20321+0251
BAL2030

32' : 20321+0330
J 2573

44' : 20278+0311
HJ 917

48' : 20306+0224
BAL2028

48' : 20298+0227
BAL2027

49' : 20309+0400
BAL2538

51' : 20274+0317
BAL2025

51' : 20286+0351
HJ 2967

54' : 20341+0256
BAL2031

55' : 20283+0351
BAL2533

61' : 20310+0211
J 561

61' : 20347+0321
CRC 38

76' : 20353+0239
HJ 2981

77' : 20257+0304
BAL2024

77' : 20302+0156
BAL1562

78' : 20330+0201
TDT2361

79' : 20324+0426
A 2281

85' : 20351+0218
UC 4224

90' : 20247+0302
J 1342

93' : 20311+0444
UC 4205

93' : 20251+0233
BAL2023

93' : 20253+0355
UC 4175

94' : 20315+0444
BAL2966



Selections
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Triple Systems
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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20307+0311 BAL 2029

 
 
20h 30m 44.30s +03° 11' 22.3" P.A. 141.00 sep 7.5 mag 11.30,11.40
 
 
Coord 2000 20307+0311 Discov num BAL2029 Comp Coord arcsec 2000 20 30 44.30 +03 11 22.3
Date first 1909 Date last 2015 Obs 9
Pa first 131 Pa last 141.4 P.A. Now (θ) 141.4°
Sep first 9.1 Sep last 7.47 Sep. Now (ρ) 7.47"
Mag pri 11.30 Mag sec 11.40 delta mag (ΔM) 0.1 Spectral class
Pri motion ra -006 Sec motion ra -014
Pri motion dec -007 Sec motion dec -009
Notes
rPM=0.495
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Gaia DR2 4232780949855839232
 
 
WDS 20307+0311 BAL 2029 : 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
20307+0311 BAL2029 2000 2 140 7.5 11.30 11.40 D 203044.30+031122.3
20307+0311 BAL2029 2015 4 141 7.5 11.30 11.40 203044.30+031122.3

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

 
 
WDS 20307+0311 BAL 2029 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20307+0311 BAL 2029 : MEASURES
 
 
No records found.

 
 
WDS 20307+0311 : VIRTUAL EYEPIECE
 
 

20307+0311 BAL2029A mag 11.3 20307+0311 BAL2029B sep 7.5 P.A. 141.40 mag 11.4 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20307+0311 : ALADIN DSS IMAGE @ 20h 30m 44.30s +03° 11' 22.3"
 
 
 
 
WDS 20307+0311 BAL 2029 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20307+0311 BAL2029 distance=1' 20302+0321 DOO 87 distance=14' 20294+0330 HJ 2970 distance=28' 20291+0325 HJ 2968 distance=28' 20321+0251 BAL2030 distance=29' 20321+0330 J 2573 distance=32' 20278+0311 HJ 917 distance=44' 20306+0224 BAL2028 distance=48' 20298+0227 BAL2027 distance=48' 20309+0400 BAL2538 distance=49' 20274+0317 BAL2025 distance=51' 20286+0351 HJ 2967 distance=51' 20341+0256 BAL2031 distance=54' 20283+0351 BAL2533 distance=55' 20310+0211 J 561 distance=61' 20347+0321 CRC 38 distance=61' 20353+0239 HJ 2981 distance=76' 20257+0304 BAL2024 distance=77' 20302+0156 BAL1562 distance=77' 20330+0201 TDT2361 distance=78' 20324+0426 A 2281 distance=79' 20351+0218 UC 4224 distance=85' 20247+0302 J 1342 distance=90' 20311+0444 UC 4205 distance=93' 20251+0233 BAL2023 distance=93' 20253+0355 UC 4175 distance=93' 20315+0444 BAL2966 distance=94' 20351+0202 BAL1564 distance=96' 20340+0433 A 2282 distance=96' 20267+0155 J 155BC distance=98' 20251+0225 LDS4841 distance=98' 20285+0443 J 3220 distance=98' 20267+0155 J 155AB distance=98' 20291+0135 GWP2956AB distance=100' 20291+0135 GWP2957AC distance=100' 20281+0140 BAL1560 distance=100' 20263+0156 BAL1557 distance=101' 20373+0332 BAL2539 distance=101' 20293+0132 BAL1561 distance=102' 20327+0453 J 2314AB distance=106' 20327+0453 J 2314AC distance=106' 20360+0411 J 2192 distance=108' 20379+0325 BAL2540 distance=109' 20266+0143 BAL1558 distance=109' 20366+0123 HJ 5513AB distance=111' 20366+0123 HJ 5513AC distance=111' 20366+0123 HJ 5513AD distance=111' 20376+0211 GRV 364 distance=120' 20312+0513 AG 257 distance=122' 20329+0113 BAL1216 distance=123' 20295+0514 UC 4199 distance=124' 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 20307+0311 BAL2029 141 7.5 1
Show 20302+0321 DOO 87 33 11.9 14
Show 20294+0330 HJ 2970 180 12.0 28
Show 20291+0325 HJ 2968 50 15.3 28
Show 20321+0251 BAL2030 286 10.8 29
Show 20321+0330 J 2573 151 4.0 32
Show 20278+0311 HJ 917 37 12.8 44
Show 20306+0224 BAL2028 196 9.5 48
Show 20298+0227 BAL2027 171 4.2 48
Show 20309+0400 BAL2538 202 10.8 49
Show 20274+0317 BAL2025 94 10.2 51
Show 20286+0351 HJ 2967 131 7.1 51
Show 20341+0256 BAL2031 334 17.4 54
Show 20283+0351 BAL2533 256 19.0 55
Show 20310+0211 J 561 176 4.3 61
Show 20347+0321 CRC 38 300 10.5 61
Show 20353+0239 HJ 2981 5 12.9 76
Show 20257+0304 BAL2024 70 16.1 77
Show 20302+0156 BAL1562 308 9.0 77
Show 20330+0201 TDT2361 37 0.5 78
Show 20324+0426 A 2281 63 1.9 79
Show 20351+0218 UC 4224 220 16.1 85
Show 20247+0302 J 1342 333 2.4 90
Show 20311+0444 UC 4205 254 48.5 93
Show 20251+0233 BAL2023 330 7.4 93
Show 20253+0355 UC 4175 87 20.7 93
Show 20315+0444 BAL2966 117 10.4 94
Show 20351+0202 BAL1564 268 4.8 96
Show 20340+0433 A 2282 166 0.2 96
Show 20267+0155 J 155 BC 164 3.3 98
Show 20251+0225 LDS4841 246 44.6 98
Show 20285+0443 J 3220 181 3.9 98
Show 20267+0155 J 155 AB 348 53.1 98
Show 20291+0135 GWP2956 AB 250 16.5 100
Show 20291+0135 GWP2957 AC 258 172.4 100
Show 20281+0140 BAL1560 3 6.6 100
Show 20263+0156 BAL1557 211 6.4 101
Show 20373+0332 BAL2539 77 130.2 101
Show 20293+0132 BAL1561 8 15.8 102
Show 20327+0453 J 2314 AB 70 4.9 106
Show 20327+0453 J 2314 AC 138 19.0 106
Show 20360+0411 J 2192 18 4.8 108
Show 20379+0325 BAL2540 94 16.1 109
Show 20266+0143 BAL1558 9 18.3 109
Show 20366+0123 HJ 5513 AB 93 11.9 111
Show 20366+0123 HJ 5513 AC 284 28.7 111
Show 20366+0123 HJ 5513 AD 89 42.5 111
Show 20376+0211 GRV 364 156 40.3 120
Show 20312+0513 AG 257 75 1.7 122
Show 20329+0113 BAL1216 157 15.1 123
Show 20295+0514 UC 4199 240 54.1 124

 
 
WDS 20307+0311 : COMPONENTS
 
 
  A
B pa=141.4°
sep=7.47"
 
 
20307+0311 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 203044.30+031122.3 Mag 11.3 PmRA -6.00
PmDE -7.0
 
 
20307+0311 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 203044.61+031116.5 Mag 11.4 PmRA -14.00
PmDE -9.0 Calc delta mag 0.1 Calc coord yes