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Current system
21073-0021
BAL 930


Nearby doubles
8' : 21069-0020
J 1718

12' : 21075-0010
STF2755

26' : 21089+0013
BU 837

38' : 21053+0044
HDS3007

38' : 21089-0052
BAL 619

42' : 21093+0048
BAL1225

43' : 21086+0059
BAL1224

47' : 21103-0016
LDS4866

47' : 21043+0008
BAL 929

52' : 21104-0042
BAL 620

61' : 21111+0041
SKF1774

61' : 21113+0011
GWP3040

66' : 21029-0028
TDT2713

66' : 21034-0050
CVR 885

68' : 21039+0106
BAL1223

70' : 21110+0102
A 2287

71' : 21069+0131
BAL1579

71' : 21119+0032
ITF 212

71' : 21101+0118
HDO 318

74' : 21025+0038
HDO 320

77' : 21119-0053
UC 4401

78' : 21123-0002
KPP1761

85' : 21016-0029
NSN 500

86' : 21080-0104
J 1402

86' : 21016-0014
TDT2701

86' : 21127-0045
J 1403



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21073-0021 BAL 930

 
 
21h 07m 17.05s -00° 21' 04.7" P.A. 9.00 sep 3.4 mag 10.80,11.10
 
 
Coord 2000 21073-0021 Discov num BAL 930 Comp Coord arcsec 2000 21 07 17.05 -00 21 04.7
Date first 1896 Date last 2016 Obs 9
Pa first 29 Pa last 9.1 P.A. Now (θ) 9.1°
Sep first 4.3 Sep last 3.42 Sep. Now (ρ) 3.42"
Mag pri 10.80 Mag sec 11.10 delta mag (ΔM) 0.3 Spectral class
Pri motion ra +009 Sec motion ra +010
Pri motion dec +002 Sec motion dec +026
Notes N (See Notes)
rPM=0.862
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Aquarius
 
 
WDS 21073-0021 BAL 930 : NOTES
 
 
discov_num notes refcode
BAL 930 J 3209.
 
 
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
21073-0021 BAL 930 2001 5 12 3.7 10.80 11.10 N D 210717.05-002104.7
21073-0021 BAL 930 2015 7 7 3.5 10.80 11.10 N 210717.05-002104.7
21073-0021 BAL 930 2016 9 9 3.4 10.80 11.10 N 210717.05-002104.7

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

 
 
WDS 21073-0021 BAL 930 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21073-0021 BAL 930 : MEASURES
 
 
No records found.

 
 
WDS 21073-0021 : VIRTUAL EYEPIECE
 
 

21073-0021 BAL 930A mag 10.8 21073-0021 BAL 930B sep 3.4 P.A. 9.10 mag 11.1 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21073-0021 : ALADIN DSS IMAGE @ 21h 07m 17.05s -00° 21' 04.7"
 
 
 
 
WDS 21073-0021 BAL 930 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21073-0021 BAL 930 distance=1' 21069-0020 J 1718 distance=8' 21075-0010 STF2755 distance=12' 21089+0013 BU 837 distance=26' 21053+0044 HDS3007 distance=38' 21089-0052 BAL 619 distance=38' 21093+0048 BAL1225 distance=42' 21086+0059 BAL1224 distance=43' 21103-0016 LDS4866 distance=47' 21043+0008 BAL 929 distance=47' 21104-0042 BAL 620 distance=52' 21111+0041 SKF1774 distance=61' 21113+0011 GWP3040 distance=61' 21029-0028 TDT2713 distance=66' 21034-0050 CVR 885 distance=66' 21039+0106 BAL1223 distance=68' 21110+0102 A 2287 distance=70' 21069+0131 BAL1579 distance=71' 21119+0032 ITF 212 distance=71' 21101+0118 HDO 318 distance=71' 21025+0038 HDO 320 distance=74' 21119-0053 UC 4401 distance=77' 21123-0002 KPP1761 distance=78' 21016-0029 NSN 500 distance=85' 21080-0104 J 1402 distance=86' 21016-0014 TDT2701 distance=86' 21127-0045 J 1403 distance=86' 21020+0055 BAL1222 distance=86' 21129-0045 SLW1231 distance=89' 21133-0024 NSN 73 distance=90' 21118+0121 UC 4400 distance=91' 21084+0151 BAL1580 distance=92' 21059+0152 YSC 71 distance=93' 21119+0126 BAL1581 distance=95' 21055-0110 BAL 617 distance=95' 21031+0132 STF2744AB distance=96' 21031+0132 STF2744AC distance=96' 21031+0132 STF2744AD distance=96' 21058-0112 CVR 886 distance=96' 21112-0100 LDS4867 distance=101' 21099+0156 GWP3037AB distance=103' 21099+0156 GWP3038AC distance=103' 21002-0014 TDS1110 distance=108' 21143-0052 LYS 38 distance=109' 21067+0212 SLN 88 distance=112' 21147-0050 LYS 39FG distance=112' 21147-0050 STF2775DE distance=115' 21147-0050 A 883AB distance=115' 21147-0050 LYS 39AF distance=115' 21147-0050 LYS 39AH distance=115' 21147-0050 STF2775AB,C distance=115' 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 21073-0021 BAL 930 9 3.4 1
Show 21069-0020 J 1718 353 7.3 8
Show 21075-0010 STF2755 79 25.4 12
Show 21089+0013 BU 837 181 3.4 26
Show 21053+0044 HDS3007 281 0.1 38
Show 21089-0052 BAL 619 127 15.9 38
Show 21093+0048 BAL1225 215 18.7 42
Show 21086+0059 BAL1224 77 11.2 43
Show 21103-0016 LDS4866 245 1.8 47
Show 21043+0008 BAL 929 352 14.0 47
Show 21104-0042 BAL 620 314 2.9 52
Show 21111+0041 SKF1774 308 1.2 61
Show 21113+0011 GWP3040 290 12.7 61
Show 21029-0028 TDT2713 59 0.8 66
Show 21034-0050 CVR 885 109 27.0 66
Show 21039+0106 BAL1223 157 11.3 68
Show 21110+0102 A 2287 38 0.1 70
Show 21069+0131 BAL1579 248 9.2 71
Show 21119+0032 ITF 212 176 2.6 71
Show 21101+0118 HDO 318 313 1.2 71
Show 21025+0038 HDO 320 225 3.0 74
Show 21119-0053 UC 4401 234 25.6 77
Show 21123-0002 KPP1761 90 13.6 78
Show 21016-0029 NSN 500 80 34.1 85
Show 21080-0104 J 1402 147 3.1 86
Show 21016-0014 TDT2701 43 1.0 86
Show 21127-0045 J 1403 344 4.0 86
Show 21020+0055 BAL1222 321 12.5 86
Show 21129-0045 SLW1231 211 14.0 89
Show 21133-0024 NSN 73 265 7.9 90
Show 21118+0121 UC 4400 189 33.5 91
Show 21084+0151 BAL1580 224 4.4 92
Show 21059+0152 YSC 71 263 1.0 93
Show 21119+0126 BAL1581 9 17.0 95
Show 21055-0110 BAL 617 308 14.0 95
Show 21031+0132 STF2744 AB 107 1.2 96
Show 21031+0132 STF2744 AC 99 97.8 96
Show 21031+0132 STF2744 AD 300 73.9 96
Show 21058-0112 CVR 886 354 12.9 96
Show 21112-0100 LDS4867 104 28.6 101
Show 21099+0156 GWP3037 AB 180 76.0 103
Show 21099+0156 GWP3038 AC 1 111.6 103
Show 21002-0014 TDS1110 79 0.9 108
Show 21143-0052 LYS 38 23 11.8 109
Show 21067+0212 SLN 88 230 4.1 112
Show 21147-0050 LYS 39 FG 11 20.0 112
Show 21147-0050 STF2775 DE 125 74.5 115
Show 21147-0050 A 883 AB 264 0.1 115
Show 21147-0050 LYS 39 AF 297 185.0 115
Show 21147-0050 LYS 39 AH 126 262.6 115
Show 21147-0050 STF2775 AB,C 178 21.3 115

 
 
WDS 21073-0021 : COMPONENTS
 
 
  A
B pa=9.1°
sep=3.42"
 
 
21073-0021 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 210717.05-002104.7 Mag 10.8 PmRA 9.00
PmDE 2.0
 
 
21073-0021 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 210717.09+002108.1 Mag 11.1 PmRA 10.00
PmDE 26.0 Calc delta mag 0.3 Calc coord yes