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Current system
20307+3521
HU 760 BC


Nearby doubles
6' : 20306+3525
COU1961

13' : 20315+3517
CRB 135

15' : 20318+3517
SEI1152

20' : 20305+3540
SEI1142

22' : 20309+3459
SEI1145

26' : 20290+3535
COU1959

27' : 20305+3454
ES 2304

27' : 20329+3515
ES 2306

29' : 20306+3452
ES 2305

30' : 20288+3541
SEI1130

34' : 20300+3448
J 789

35' : 20291+3550
HO 594AB

37' : 20294+3447
GCB 53

38' : 20322+3552
GRV 350

40' : 20339+3515
WRH 34AB

42' : 20321+3558
COU2133AB

42' : 20288+3447
COU2132

44' : 20340+3505
SEI1169

46' : 20344+3513
J 1143

47' : 20337+3452
TDT2373

48' : 20344+3510
TDT2383

49' : 20278+3447
COU2131AB

52' : 20346+3541
TDT2386

57' : 20277+3605
ES 2193AB

57' : 20353+3525
ES 2250

58' : 20340+3441
STT 408



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

20307+3521 HU 760 BC

 
 
20h 30m 41.05s +35° 20' 45.8" P.A. 67.00 sep 0.3 mag 9.80,10.40
 
 
Coord 2000 20307+3521 Discov num HU  760 Comp BC Coord arcsec 2000 20 30 41.05 +35 20 45.8
Date first 1904 Date last 2012 Obs 10
Pa first 112 Pa last 67.2 P.A. Now (θ) 67.2°
Sep first 0.3 Sep last 0.258 Sep. Now (ρ) 0.258"
Mag pri 9.80 Mag sec 10.40 delta mag (ΔM) 0.6 Spectral class
Pri motion ra +007 Sec motion ra +007
Pri motion dec +009 Sec motion dec +009
Notes N (See Notes)
Nature of this double is uncertain.
 
 
20307+3521 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 195530 20 30 41 +35 20 53 HJ 1526 A,BC 2018 28 148 8.8 9.00 9.26 0.26
Show 20 30 41 +35 20 46 HU 760 BC 2012 10 67 0.3 9.80 10.40 0.60 <===
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 2056585269389498752
 
 
WDS 20307+3521 HU 760 BC : NOTES
 
 
discov_num notes refcode
HJ 1526 A,BC: SEI1143. Nsn2017d
 
 
REFERENCES
 
 
refcode metd author reference
Nsn2017d not - Nanson, J. ...................
Nsn2017d private communication, 2017
 
 
DISCOVERER
 
 
idgroup discov author
1 HJ Herschel, J.F.W.
50 HU Hussey, W.F.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20307+3521 HU 760 BC 1992 8 84 0.2 9.80 10.40 203041.05+352045.8
20307+3521 HU 760 BC 2010 9 72 0.3 9.80 10.40 N 203041.05+352045.8
20307+3521 HU 760 BC 2012 10 67 0.3 9.80 10.40 N 203041.05+352045.8

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

 
 
WDS 20307+3521 HU 760 BC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20307+3521 HU 760 BC : MEASURES
 
 
No records found.

 
 
WDS 20307+3521 : VIRTUAL EYEPIECE
 
 

20307+3521 HJ 1526A mag 9 Sp A2 20307+3521 HU 760B sep 8.7 P.A. 148.50 mag 9.8 20307+3521 HU 760C sep 8.7 P.A. 147.10 mag 10.4 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20307+3521 : ALADIN DSS IMAGE @ 20h 30m 41.05s +35° 20' 45.8"
 
 
 
 
WDS 20307+3521 HU 760 BC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20307+3521 HU 760BC distance=0' 20307+3521 HJ 1526A,BC distance=1' 20306+3525 COU1961 distance=6' 20315+3517 CRB 135 distance=13' 20318+3517 SEI1152 distance=15' 20305+3540 SEI1142 distance=20' 20309+3459 SEI1145 distance=22' 20290+3535 COU1959 distance=26' 20305+3454 ES 2304 distance=27' 20329+3515 ES 2306 distance=27' 20306+3452 ES 2305 distance=29' 20288+3541 SEI1130 distance=30' 20300+3448 J 789 distance=34' 20291+3550 HO 594AB distance=35' 20291+3550 GRF 16AC distance=35' 20294+3447 GCB 53 distance=37' 20322+3552 GRV 350 distance=38' 20339+3515 WRH 34AB distance=40' 20339+3515 BU 1490AC distance=40' 20321+3558 COU2133AB distance=42' 20321+3558 COU2133Aa,Ab distance=42' 20288+3447 COU2132 distance=42' 20340+3505 SEI1169 distance=44' 20344+3513 J 1143 distance=46' 20337+3452 TDT2373 distance=47' 20344+3510 TDT2383 distance=48' 20278+3447 COU2131AB distance=49' 20278+3447 GII 86Aa,Ab distance=49' 20346+3541 TDT2386 distance=52' 20277+3605 ES 2193AB distance=57' 20277+3605 ES 2193AC distance=57' 20277+3605 ES 2193AD distance=57' 20353+3525 ES 2250 distance=57' 20340+3441 STT 408 distance=58' 20260+3512 COU2129 distance=58' 20308+3619 TDS1078 distance=59' 20355+3510 POP 6 distance=60' 20355+3509 POP 7 distance=60' 20355+3507 SEI1183 distance=61' 20356+3510 STF2702 distance=61' 20262+3547 COU2130Aa,Ab distance=61' 20262+3547 SEI1125AB distance=61' 20258+3504 TDT2264 distance=62' 20316+3420 TOK 338 distance=62' 20287+3423 COU1957 distance=63' 20260+3549 HDS2922 distance=64' 20324+3622 KPP3359 distance=65' 20355+3450 ES 2307 distance=67' 20252+3522 SEI1120 distance=67' 20251+3522 SEI1118 distance=68' 20359+3458 J 793 distance=69' 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+3521 HU 760 BC 67 0.3
Show 20307+3521 HJ 1526 A,BC 148 8.8 1
Show 20306+3525 COU1961 205 0.4 6
Show 20315+3517 CRB 135 4 16.6 13
Show 20318+3517 SEI1152 316 25.3 15
Show 20305+3540 SEI1142 78 21.7 20
Show 20309+3459 SEI1145 88 7.7 22
Show 20290+3535 COU1959 323 0.4 26
Show 20305+3454 ES 2304 39 3.6 27
Show 20329+3515 ES 2306 328 7.4 27
Show 20306+3452 ES 2305 286 6.7 29
Show 20288+3541 SEI1130 26 11.3 30
Show 20300+3448 J 789 97 2.3 34
Show 20291+3550 HO 594 AB 212 15.9 35
Show 20291+3550 GRF 16 AC 163 104.0 35
Show 20294+3447 GCB 53 338 4.3 37
Show 20322+3552 GRV 350 159 36.5 38
Show 20339+3515 WRH 34 AB 278 0.3 40
Show 20339+3515 BU 1490 AC 210 115.1 40
Show 20321+3558 COU2133 AB 29 2.4 42
Show 20321+3558 COU2133 Aa,Ab 119 0.1 42
Show 20288+3447 COU2132 108 1.2 42
Show 20340+3505 SEI1169 262 20.8 44
Show 20344+3513 J 1143 271 4.1 46
Show 20337+3452 TDT2373 67 0.8 47
Show 20344+3510 TDT2383 124 0.6 48
Show 20278+3447 COU2131 AB 281 1.1 49
Show 20278+3447 GII 86 Aa,Ab 113 0.4 49
Show 20346+3541 TDT2386 203 0.5 52
Show 20277+3605 ES 2193 AB 334 4.9 57
Show 20277+3605 ES 2193 AC 231 7.4 57
Show 20277+3605 ES 2193 AD 33 12.7 57
Show 20353+3525 ES 2250 121 5.5 57
Show 20340+3441 STT 408 193 1.6 58
Show 20260+3512 COU2129 163 0.1 58
Show 20308+3619 TDS1078 294 1.2 59
Show 20355+3510 POP 6 219 6.5 60
Show 20355+3509 POP 7 66 7.9 60
Show 20355+3507 SEI1183 -1 -1.0 61
Show 20356+3510 STF2702 208 3.1 61
Show 20262+3547 COU2130 Aa,Ab 61 0.5 61
Show 20262+3547 SEI1125 AB 250 19.2 61
Show 20258+3504 TDT2264 59 1.2 62
Show 20316+3420 TOK 338 2 94.2 62
Show 20287+3423 COU1957 84 1.2 63
Show 20260+3549 HDS2922 143 0.6 64
Show 20324+3622 KPP3359 201 8.7 65
Show 20355+3450 ES 2307 90 3.3 67
Show 20252+3522 SEI1120 217 27.3 67
Show 20251+3522 SEI1118 150 9.4 68
Show 20359+3458 J 793 67 2.9 69

 
 
WDS 20307+3521 : COMPONENTS
 
 
  A B
B pa=148.5°
sep=8.67"
 
C pa=147.1°
sep=8.69"
pa=62.7°
sep=0.22"
 
 
20307+3521 A
 
 
Name HD 195530 Coord arcsec 2000 203040.68+352053.2 Mag 9 Spectral class A2 (white)
PmRA 7.00 PmDE 8.0 Tycho2 2693-00788-1 HD 195530
Tycho2
Tycho2 2693-00788-1 Pflag RAmdeg 307.66951777 DEmdeg 35.34813652
PmRA 8.9 PmDE 7.1 E RAmdeg 8 E DEmdeg 8
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.15 EpDEm 1991.24
Num 6 Q RAmdeg 1.8 Q DEmdeg 1.4 Q pmRA 1.8
Q pmDE 1.4 BTmag 9.131 E BTmag 0.017 VTmag 8.998
E VTmag 0.015 Prox 87 TYC T HIP
CCDM RAdeg 307.66949250 DEdeg 35.34812000 EpRA 1990 1.61
EpDE 1990 1.64 E RAdeg 7.8 E DEdeg 7.9 Posflg
Corr -0.1
CCDM
Ccdm 20307+3521 RComp Comp A Note1
Note2 Discov num DRAs -1.35 DDEs -7.7
R dRAs 21 Year Theta Rho
Obs 3 Vmag 8.9 Sp A2 PmNote
PmRA 12 PmDE -10 Dm number +34 4056 Cat1 BD
Name2 Cat2 HD 195530 M HD
ADS BDS A13939 M ADS BDS N IDS IDS 20268N3501A
HIC
 
 
20307+3521 B
 
 
Coord arcsec 2000 203041.05+352045.8 Mag 9.8 PmRA 7.00 PmDE 9.0
Calc delta mag 0.8
CCDM
Ccdm 20307+3521 RComp Comp B Note1
Note2 Discov num HJ 1526 DRAs DDEs
R dRAs Year 1896 Theta 149 Rho 8.8
Obs 9 Vmag 9.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13939 M ADS BDS N IDS IDS 20268N3501B
HIC
 
 
20307+3521 C
 
 
Coord arcsec 2000 203041.07+352045.9 Mag 10.4 PmRA 7.00 PmDE 9.0
Calc delta mag 1.4 Calc coord yes
CCDM
Ccdm 20307+3521 RComp B Comp C Note1
Note2 Discov num HU 760 DRAs DDEs
R dRAs Year 1957 Theta 092 Rho 0.2
Obs 5 Vmag 9.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13939 M ADS BDS N IDS IDS 20268N3501C
HIC