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Doubles in session


Current system
21020+3052
LDS 2937


Nearby doubles
14' : 21026+3041
COU1182

16' : 21020+3107
TDT2706

20' : 21031+3039
GRV 407

25' : 21037+3104
STT 427

29' : 20598+3048
TDT2681

32' : 21034+3025
SMA 123

36' : 20593+3043
TDT2677

37' : 21050+3109
J 3124

37' : 21004+3022
COU1179

40' : 21047+3109
DAM 226

41' : 21046+3116
J 2336

44' : 21037+3130
TDT2721

45' : 20598+3126
GYL 44

47' : 20595+3019
J 847

47' : 21056+3043
TDT2737

48' : 21003+3134
KPP1379

54' : 20589+3015
ES 373

55' : 21025+2958
COU1181

55' : 21025+3146
ES 374AB

55' : 21010+3145
TDT2695

55' : 21052+3127
GRV 412

61' : 21064+3031
TDT2751

66' : 21010+3156
STJ 61

69' : 21073+3048
TDT2766

70' : 20567+3047
LDS2935

72' : 21074+3038
TDT2767



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Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
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Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21020+3052 LDS 2937

 
 
21h 01m 59.49s +30° 51' 50.8" P.A. 140.00 sep 55.9 mag 9.32,14.80 Sp F5
 
 
Coord 2000 21020+3052 Discov num LDS2937 Comp Coord arcsec 2000 21 01 59.49 +30 51 50.8
Date first 1953 Date last 2015 Obs 8
Pa first 132 Pa last 139.7 P.A. Now (θ) 139.7°
Sep first 55.0 Sep last 55.887 Sep. Now (ρ) 55.887"
Mag pri 9.32 Mag sec 14.80 delta mag (ΔM) 5.48 Spectral class F5 (yellow-white)
Pri motion ra -040 Sec motion ra -045
Pri motion dec -060 Sec motion dec -075
Notes
rPM=0.181 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2701-02418-1 Gaia DR2 1864554777629250560 HD 335455
 
 
WDS 21020+3052 LDS 2937 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
LDS Luyten p.m. catalog (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21020+3052 LDS2937 1998 2 140 55.6 9.32 14.80 F5 D 210159.49+305150.8
21020+3052 LDS2937 2009 3 140 55.8 9.32 14.80 F5 D 210159.49+305150.8
21020+3052 LDS2937 2010 5 140 55.9 9.32 14.80 F5 210159.49+305150.8
21020+3052 LDS2937 2015 6 140 55.9 9.32 14.80 F5 210159.49+305150.8

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

 
 
WDS 21020+3052 LDS 2937 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21020+3052 LDS 2937 : MEASURES
 
 
No records found.

 
 
WDS 21020+3052 : VIRTUAL EYEPIECE
 
 

21020+3052 LDS2937A mag 9.32 Sp F5 21020+3052 LDS2937B sep 52.7 P.A. 143.90 mag 14.8 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21020+3052 : ALADIN DSS IMAGE @ 21h 01m 59.49s +30° 51' 50.8"
 
 
 
 
WDS 21020+3052 LDS 2937 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21020+3052 LDS2937 distance=0' 21026+3041 COU1182 distance=14' 21020+3107 TDT2706 distance=16' 21031+3039 GRV 407 distance=20' 21037+3104 STT 427 distance=25' 20598+3048 TDT2681 distance=29' 21034+3025 SMA 123 distance=32' 20593+3043 TDT2677 distance=36' 21050+3109 J 3124 distance=37' 21004+3022 COU1179 distance=37' 21047+3109 DAM 226 distance=40' 21046+3116 J 2336 distance=41' 21037+3130 TDT2721 distance=44' 20598+3126 GYL 44 distance=45' 20595+3019 J 847 distance=47' 21056+3043 TDT2737 distance=47' 21003+3134 KPP1379 distance=48' 20589+3015 ES 373 distance=54' 21025+3146 CRB 15BD distance=55' 21025+3146 ES 374BC distance=55' 21025+2958 COU1181 distance=55' 21025+3146 ES 374AB distance=55' 21010+3145 TDT2695 distance=55' 21052+3127 GRV 412 distance=55' 21064+3031 TDT2751 distance=61' 21010+3156 STJ 61 distance=66' 21073+3048 TDT2766 distance=69' 20567+3047 LDS2935 distance=70' 21074+3038 TDT2767 distance=72' 20593+3155 COU1178 distance=73' 20567+3027 TDT2650 distance=73' 20579+3002 TDT2662 distance=73' 21017+2938 COU1180AB distance=75' 21017+2938 RBR 51Aa,Ab distance=75' 20578+3002 J 2334 distance=77' 20576+3003 J 2333AB distance=78' 20576+3003 DAM 669AC distance=78' 21077+3022 UC 256 distance=80' 21029+3211 GRV 405 distance=81' 21080+3116 LDS2940 distance=82' 21079+3123 GRV 421 distance=83' 21070+3001 J 1319 distance=83' 21031+2929 OSO 139AB distance=85' 21031+2929 OSO 139AC distance=85' 21031+2929 OSO 139AD distance=85' 21077+3009 KPP1031 distance=85' 20554+3033 GRV 396 distance=86' 20555+3028 TDT2633 distance=87' 20588+3209 TDT2671 distance=88' 20578+3202 ES 2438 distance=89' 20579+2940 MLB 573AB distance=89' 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 21020+3052 LDS2937 140 55.9
Show 21026+3041 COU1182 180 1.0 14
Show 21020+3107 TDT2706 204 0.6 16
Show 21031+3039 GRV 407 221 59.2 20
Show 21037+3104 STT 427 153 4.1 25
Show 20598+3048 TDT2681 215 0.5 29
Show 21034+3025 SMA 123 145 7.2 32
Show 20593+3043 TDT2677 133 0.8 36
Show 21050+3109 J 3124 208 4.5 37
Show 21004+3022 COU1179 359 0.9 37
Show 21047+3109 DAM 226 16 4.3 40
Show 21046+3116 J 2336 40 9.1 41
Show 21037+3130 TDT2721 43 2.1 44
Show 20598+3126 GYL 44 2 51.2 45
Show 20595+3019 J 847 129 2.2 47
Show 21056+3043 TDT2737 322 6.3 47
Show 21003+3134 KPP1379 160 10.3 48
Show 20589+3015 ES 373 136 2.3 54
Show 21025+3146 CRB 15 BD 241 5.6 55
Show 21025+3146 ES 374 BC 203 4.5 55
Show 21025+2958 COU1181 214 0.7 55
Show 21025+3146 ES 374 AB 137 26.8 55
Show 21010+3145 TDT2695 172 0.8 55
Show 21052+3127 GRV 412 265 42.4 55
Show 21064+3031 TDT2751 148 2.4 61
Show 21010+3156 STJ 61 136 1.5 66
Show 21073+3048 TDT2766 193 1.9 69
Show 20567+3047 LDS2935 200 10.1 70
Show 21074+3038 TDT2767 173 10.5 72
Show 20593+3155 COU1178 16 1.2 73
Show 20567+3027 TDT2650 310 0.6 73
Show 20579+3002 TDT2662 100 1.5 73
Show 21017+2938 COU1180 AB 204 3.7 75
Show 21017+2938 RBR 51 Aa,Ab 181 0.6 75
Show 20578+3002 J 2334 16 5.1 77
Show 20576+3003 J 2333 AB 328 7.7 78
Show 20576+3003 DAM 669 AC 244 4.4 78
Show 21077+3022 UC 256 67 48.1 80
Show 21029+3211 GRV 405 253 14.0 81
Show 21080+3116 LDS2940 222 7.6 82
Show 21079+3123 GRV 421 185 14.6 83
Show 21070+3001 J 1319 206 1.7 83
Show 21031+2929 OSO 139 AB 82 15.8 85
Show 21031+2929 OSO 139 AC 308 18.8 85
Show 21031+2929 OSO 139 AD 110 26.3 85
Show 21077+3009 KPP1031 334 8.3 85
Show 20554+3033 GRV 396 349 67.4 86
Show 20555+3028 TDT2633 116 1.4 87
Show 20588+3209 TDT2671 302 0.5 88
Show 20578+3202 ES 2438 311 6.8 89
Show 20579+2940 MLB 573 AB 57 5.7 89

 
 
WDS 21020+3052 : COMPONENTS
 
 
  A
B pa=143.9°
sep=52.72"
 
 
21020+3052 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 210159.49+305150.8 Mag 9.32 Spectral class F5 (yellow-white)
PmRA -40.00 PmDE -60.0 Tycho2 2701-02418-1 HD 335455
Tycho2
Tycho2 2701-02418-1 Pflag RAmdeg 315.49784955 DEmdeg 30.86411609
PmRA -39.8 PmDE -57.5 E RAmdeg 11 E DEmdeg 10
E pmRA 1.6 E pmDE 1.5 EpRAm 1990.48 EpDEm 1990.95
Num 7 Q RAmdeg 0.8 Q DEmdeg 1.0 Q pmRA 0.8
Q pmDE 1.0 BTmag 9.818 E BTmag 0.021 VTmag 9.322
E VTmag 0.016 Prox 999 TYC T HIP
CCDM RAdeg 315.49796000 DEdeg 30.86424833 EpRA 1990 1.48
EpDE 1990 1.73 E RAdeg 10.6 E DEdeg 9.6 Posflg
Corr 0.1
CCDM
Ccdm 21020+3052 RComp Comp A Note1
Note2 Discov num DRAs -0.57 DDEs -9.4
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.8 Sp PmNote *
PmRA -43 PmDE -64 Dm number +30 4289 Cat1 BD
Name2 +30 2253 Cat2 AGK2/3 HD M HD
ADS BDS M ADS BDS N IDS IDS 20578N3028A
HIC
 
 
21020+3052 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 210201.90+305108.2 Mag 14.8 PmRA -45.00
PmDE -75.0 Calc delta mag 5.48 Calc coord yes
CCDM
Ccdm 21020+3052 RComp Comp B Note1
Note2 Discov num LDS2937 DRAs DDEs
R dRAs Year 1953 Theta 132 Rho 55.0
Obs 1 Vmag 15.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20578N3028B
HIC