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Current system
21372+4739
BEM 39 BC


Nearby doubles
16' : 21386+4747
COU2311

29' : 21350+4723
ES 1173

32' : 21345+4725
ES 1172AB

35' : 21342+4721
BKO 160AB

37' : 21396+4712
HJ 1676

38' : 21361+4814
ES 1174

39' : 21341+4718
HDS3072

39' : 21383+4702
TDT3071

41' : 21412+4733
GRF 18

42' : 21342+4808
ES 519

43' : 21346+4813
RAO 462AB

46' : 21366+4824
TDT3057

47' : 21346+4817
SWN 8

47' : 21338+4811
SWN 6

51' : 21380+4829
ES 102

53' : 21346+4654
TDT3038

54' : 21401+4824
HJ 1681AB

55' : 21332+4816
POP 55

57' : 21415+4817
KPP4242

61' : 21323+4821
DJU 7

64' : 21339+4833
YR 3

65' : 21316+4811
SWN 5

66' : 21308+4752
A 769

67' : 21306+4742
ES 824

67' : 21327+4829
HJ 1657AB

69' : 21315+4817
A 771AB



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

21372+4739 BEM 39 BC

 
 
21h 37m 11.38s +47° 39' 28.3" P.A. 124.00 sep 6.5 mag 11.20,12.70
 
 
Coord 2000 21372+4739 Discov num BEM  39 Comp BC Coord arcsec 2000 21 37 11.38 +47 39 28.3
Date first 1898 Date last 2016 Obs 10
Pa first 110 Pa last 124.3 P.A. Now (θ) 124.3°
Sep first 7.1 Sep last 6.532 Sep. Now (ρ) 6.532"
Mag pri 11.20 Mag sec 12.70 delta mag (ΔM) 1.5 Spectral class
Pri motion ra +000 Sec motion ra
Pri motion dec +001 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
21372+4739 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 37 12 +47 39 14 BEM 39 AB 2016 12 329 15.7 10.06 11.20 1.14
Show 21 37 12 +47 39 14 BEM 39 AD 2016 10 7 25.9 10.06 13.10 3.04
Show 21 37 12 +47 39 14 BEM 39 AE 2016 10 124 25.1 10.06 13.16 3.10
Show 21 37 11 +47 39 28 BEM 39 BC 2016 10 124 6.5 11.20 12.70 1.50 <===
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1977626904164858752
 
 
WDS 21372+4739 BEM 39 BC : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Bem1925 orb - Bemporad, A. .
Bem1925 Rend. R. Acad. Lincei 11, 315, 1925
Bem1932a Pa - Bemporad, A. .
Bem1932a Rend. R. Acad. Lincei 16, 10, 1932
Bem1932b Pa j Bemporad, A. 1932AN....244..353B
Bem1932b AN 244, 353, 1932
Bem1932c Pa j Bemporad, A. 1932AN....246...23B
Bem1932c AN 246, 23, 1932
Bem1933 Pa j Bemporad, A. 1933AN....248...29B
Bem1933 AN 248, 29, 1933
Bem1934 Pa - Bemporad, A. 1934AN....254...37B
Bem1934 AN 254, 37, 1934
Bem1938 Pa - Bemporad, A. .
Bem1938 Contr. Astrofis. Catania 42, 1938
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21372+4739 BEM 39 BC 1998 3 124 6.6 11.20 11.70 D 213711.38+473928.3
21372+4739 BEM 39 BC 2011 4 125 6.6 11.20 11.70 D 213711.38+473928.3
21372+4739 BEM 39 BC 2016 6 124 6.5 11.20 12.70 213711.38+473928.3

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

 
 
WDS 21372+4739 BEM 39 BC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21372+4739 BEM 39 BC : MEASURES
 
 
No records found.

 
 
WDS 21372+4739 : VIRTUAL EYEPIECE
 
 

21372+4739 BEM 39A mag 10.06 21372+4739 BEM 39B sep 17.2 P.A. 325.70 mag 11.2 21372+4739 BEM 39C sep 12.1 P.A. 330.00 mag 12.7 21372+4739 BEM 39D sep 25.7 P.A. 5.00 mag 13.1 21372+4739 BEM 39E sep 19.9 P.A. 135.50 mag 13.16 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21372+4739 : ALADIN DSS IMAGE @ 21h 37m 11.38s +47° 39' 28.3"
 
 
 
 
WDS 21372+4739 BEM 39 BC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21372+4739 BEM 39BC distance=0' 21372+4739 BEM 39AB distance=1' 21372+4739 BEM 39AD distance=1' 21372+4739 BEM 39AE distance=1' 21386+4747 COU2311 distance=16' 21350+4723 ES 1173 distance=29' 21345+4725 ES 1172AB distance=32' 21345+4725 ES 1172AC distance=32' 21345+4725 ABH 146AD distance=32' 21345+4725 ABH 146AE distance=32' 21345+4725 ABH 146AF distance=32' 21345+4725 ABH 146AG distance=32' 21345+4725 ABH 146AH distance=32' 21345+4725 ABH 146AI distance=32' 21345+4725 ABH 146AJ distance=32' 21345+4725 ABH 146AK distance=32' 21345+4725 ABH 146AL distance=32' 21342+4721 BKO 160AB distance=35' 21342+4721 BKO 160AC distance=35' 21396+4712 HJ 1676 distance=37' 21361+4814 ES 1174 distance=38' 21341+4718 HDS3072 distance=39' 21383+4702 TDT3071 distance=39' 21412+4733 GRF 18 distance=41' 21342+4808 ES 519 distance=42' 21346+4813 RAO 462AB distance=43' 21346+4813 GRV1284AC distance=43' 21366+4824 TDT3057 distance=46' 21346+4817 SWN 8 distance=47' 21338+4811 SWN 6 distance=47' 21380+4829 ES 102 distance=51' 21346+4654 TDT3038 distance=53' 21401+4824 HJ 1681AB distance=54' 21332+4816 POP 55 distance=55' 21415+4817 KPP4242 distance=57' 21323+4821 DJU 7 distance=61' 21339+4833 YR 3 distance=64' 21316+4811 SWN 5 distance=65' 21308+4752 A 769 distance=66' 21306+4742 ES 824 distance=67' 21327+4829 HJ 1657AB distance=67' 21315+4817 A 771AB distance=69' 21352+4634 LDS4898 distance=69' 21303+4740 COU2440 distance=70' 21339+4842 SWN 7 distance=71' 21314+4821 COU2441 distance=72' 21304+4717 ES 516 distance=73' 21321+4828 COU2442 distance=74' 21311+4701 CLZ 80 distance=74' 21314+4829 ARN 78AB distance=74' 21425+4832 COU2313 distance=76' 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 21372+4739 BEM 39 BC 124 6.5
Show 21372+4739 BEM 39 AB 329 15.7 1
Show 21372+4739 BEM 39 AD 7 25.9 1
Show 21372+4739 BEM 39 AE 124 25.1 1
Show 21386+4747 COU2311 241 1.0 16
Show 21350+4723 ES 1173 95 3.8 29
Show 21345+4725 ES 1172 AB 104 6.4 32
Show 21345+4725 ES 1172 AC 205 16.3 32
Show 21345+4725 ABH 146 AD 170 30.6 32
Show 21345+4725 ABH 146 AE 33 32.6 32
Show 21345+4725 ABH 146 AF 58 49.7 32
Show 21345+4725 ABH 146 AG 104 48.6 32
Show 21345+4725 ABH 146 AH 247 43.1 32
Show 21345+4725 ABH 146 AI 92 119.9 32
Show 21345+4725 ABH 146 AJ 250 107.2 32
Show 21345+4725 ABH 146 AK 246 112.4 32
Show 21345+4725 ABH 146 AL 232 102.7 32
Show 21342+4721 BKO 160 AB 195 9.1 35
Show 21342+4721 BKO 160 AC 12 7.5 35
Show 21396+4712 HJ 1676 136 29.6 37
Show 21361+4814 ES 1174 254 2.2 38
Show 21341+4718 HDS3072 49 0.3 39
Show 21383+4702 TDT3071 99 2.6 39
Show 21412+4733 GRF 18 203 146.6 41
Show 21342+4808 ES 519 318 8.2 42
Show 21346+4813 RAO 462 AB 82 0.8 43
Show 21346+4813 GRV1284 AC 35 12.3 43
Show 21366+4824 TDT3057 232 0.5 46
Show 21346+4817 SWN 8 119 7.8 47
Show 21338+4811 SWN 6 272 6.2 47
Show 21380+4829 ES 102 36 11.4 51
Show 21346+4654 TDT3038 135 0.6 53
Show 21401+4824 HJ 1681 AB 107 7.5 54
Show 21332+4816 POP 55 201 4.9 55
Show 21415+4817 KPP4242 74 4.0 57
Show 21323+4821 DJU 7 98 3.1 61
Show 21339+4833 YR 3 214 0.3 64
Show 21316+4811 SWN 5 30 5.1 65
Show 21308+4752 A 769 296 0.7 66
Show 21306+4742 ES 824 353 6.0 67
Show 21327+4829 HJ 1657 AB 16 23.1 67
Show 21315+4817 A 771 AB 50 0.0 69
Show 21352+4634 LDS4898 71 3.9 69
Show 21303+4740 COU2440 179 0.5 70
Show 21339+4842 SWN 7 313 1.9 71
Show 21314+4821 COU2441 304 0.2 72
Show 21304+4717 ES 516 147 3.4 73
Show 21321+4828 COU2442 300 0.2 74
Show 21311+4701 CLZ 80 346 9.3 74
Show 21314+4829 ARN 78 AB 101 50.0 74
Show 21425+4832 COU2313 55 0.4 76

 
 
WDS 21372+4739 : COMPONENTS
 
 
  A B C D
B pa=325.7°
sep=17.20"
 
C pa=330.0°
sep=12.14"
pa=135.4°
sep=5.17"
 
D pa=5.0°
sep=25.74"
pa=46.2°
sep=16.54"
pa=28.8°
sep=17.25"
 
E pa=135.5°
sep=19.91"
pa=140.2°
sep=36.96"
pa=141.0°
sep=31.81"
pa=163.6°
sep=41.52"
 
 
21372+4739 A
 
 
Coord arcsec 2000 213712.34+473914.1 Mag 10.06 PmRA 2.00 PmDE -2.0
Tycho2 3595-02330-1
Tycho2
Tycho2 3595-02330-1 Pflag RAmdeg 324.30143004 DEmdeg 47.65391590
PmRA 4.2 PmDE -0.3 E RAmdeg 15 E DEmdeg 16
E pmRA 1.9 E pmDE 1.9 EpRAm 1990.93 EpDEm 1990.83
Num 3 Q RAmdeg 0.5 Q DEmdeg 1.4 Q pmRA 0.4
Q pmDE 1.4 BTmag 10.166 E BTmag 0.025 VTmag 10.059
E VTmag 0.028 Prox 999 TYC T HIP
CCDM RAdeg 324.30141528 DEdeg 47.65391667 EpRA 1990 1.66
EpDE 1990 1.63 E RAdeg 15.4 E DEdeg 16.0 Posflg
Corr 0.1
 
 
21372+4739 B
 
 
Coord arcsec 2000 213711.38+473928.3 Coord calc 213711.38+473928.3 Mag 11.2 PmRA 0.00
PmDE 1.0 Calc delta mag 1.14
 
 
21372+4739 C
 
 
Coord arcsec 2000 213711.74+473924.6 Mag 12.7 Calc delta mag 2.64 Calc coord yes
 
 
21372+4739 D
 
 
Coord arcsec 2000 213712.56+473939.7 Mag 13.1 PmRA 3.00 PmDE 2.0
Calc delta mag 3.04 Calc coord yes
 
 
21372+4739 E
 
 
Coord arcsec 2000 213713.72+473859.9 Mag 13.16 PmRA -9.00 PmDE -9.0
Calc delta mag 3.1 Calc coord yes