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Current system
20470+3156
GYL 71


Nearby doubles
8' : 20464+3155
TDT2532

15' : 20471+3210
ARY 61

23' : 20487+3159
ES 369

25' : 20452+3146
ARY 86

29' : 20491+3148
ES 370

31' : 20447+3146
TDT2513

36' : 20493+3217
LDS2931AB

40' : 20487+3124
TDT2555

43' : 20503+3151
TDT2570

44' : 20491+3230
GYL 70

46' : 20437+3137
LDS2929

48' : 20435+3212
KPP1637

50' : 20452+3240
TDT2517

53' : 20493+3113
TDS1101

54' : 20435+3127
TDT2499

54' : 20492+3111
LDS2930

54' : 20483+3247
TDT2550

55' : 20439+3119
ES 366

56' : 20469+3252
ARG 93

58' : 20455+3102
A 1211

60' : 20423+3202
TDT2482

61' : 20478+3057
ES 368

62' : 20437+3243
ES 2376AB

64' : 20477+3258
COU1634

67' : 20419+3210
TDT2479

71' : 20484+3049
TDT2552



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

20470+3156 GYL 71

 
 
20h 46m 58.78s +31° 56' 09.5" P.A. 46.00 sep 24.4 mag 11.06,13.10
 
 
Coord 2000 20470+3156 Discov num GYL  71 Comp Coord arcsec 2000 20 46 58.78 +31 56 09.5
Date first 1893 Date last 2015 Obs 11
Pa first 45 Pa last 46.1 P.A. Now (θ) 46.1°
Sep first 23.3 Sep last 24.429 Sep. Now (ρ) 24.429"
Mag pri 11.06 Mag sec 13.10 delta mag (ΔM) 2.04 Spectral class
Pri motion ra -006 Sec motion ra -001
Pri motion dec -010 Sec motion dec -004
Notes
rPM=0.67
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2691-01625-1 Gaia DR2 1859922397703614592
 
 
WDS 20470+3156 GYL 71 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Gyl1958 Pa j Goyal, A.N. 1958AJ.....63..147G
Gyl1958 AJ 63, 147, 1958
Gyl1962 Pa j Goyal, A.N. 1962MNRAS.123..413G
Gyl1962 MNRAS 123, 413, 1962
Gyl1964 Pa j Goyal, A.N. 1964MNRAS.127..215G
Gyl1964 MNRAS 127, 215, 1964
Gyl1966 Pa j Goyal, A.N. 1966MNRAS.133...15G
Gyl1966 MNRAS 133, 15, 1966
Gyl1968 Pa j Goyal, A.N. 1968AJ.....73..366G
Gyl1968 AJ 73, 366, 1968
Gyl1970 Pa j Goyal, A.N. 1970MNRAS.150..235G
Gyl1970 MNRAS 150, 235, 1970
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20470+3156 GYL 71 2006 5 47 24.8 11.06 13.10 D 204658.78+315609.5
20470+3156 GYL 71 2010 7 47 23.6 11.06 13.10 204658.78+315609.5
20470+3156 GYL 71 2015 8 46 24.4 11.06 13.10 204658.78+315609.5

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

 
 
WDS 20470+3156 GYL 71 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20470+3156 GYL 71 : MEASURES
 
 
No records found.

 
 
WDS 20470+3156 : VIRTUAL EYEPIECE
 
 

20470+3156 GYL 71A mag 11.06 20470+3156 GYL 71B sep 22.6 P.A. 41.40 mag 13.1 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 20470+3156 : ALADIN DSS IMAGE @ 20h 46m 58.78s +31° 56' 09.5"
 
 
 
 
WDS 20470+3156 GYL 71 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20470+3156 GYL 71 distance=0' 20464+3155 TDT2532 distance=8' 20471+3210 ARY 61 distance=15' 20487+3159 ES 369 distance=23' 20452+3146 ARY 86 distance=25' 20491+3148 ES 370 distance=29' 20447+3146 TDT2513 distance=31' 20493+3217 LDS2931AB distance=36' 20493+3217 HLA 28AC distance=36' 20487+3124 TDT2555 distance=40' 20503+3151 TDT2570 distance=43' 20491+3230 GYL 70 distance=44' 20437+3137 LDS2929 distance=46' 20435+3212 KPP1637 distance=48' 20452+3240 TDT2517 distance=50' 20493+3113 TDS1101 distance=53' 20435+3127 TDT2499 distance=54' 20492+3111 LDS2930 distance=54' 20483+3247 TDT2550 distance=54' 20439+3119 ES 366 distance=55' 20469+3252 ARG 93 distance=56' 20455+3102 A 1211 distance=58' 20423+3202 TDT2482 distance=60' 20478+3057 ES 368 distance=61' 20437+3243 COU1633Aa,Ab distance=62' 20437+3243 ES 2376AB distance=62' 20477+3258 COU1634 distance=64' 20419+3210 TDT2479 distance=67' 20484+3049 TDT2552 distance=71' 20460+3308 GYL 69 distance=73' 20456+3043 STF2726 distance=75' 20529+3154 GYL 40 distance=76' 20529+3149 A 1213 distance=77' 20506+3055 BU 67AB distance=77' 20506+3055 GII 293Aa,Ab distance=77' 20515+3104 NSN 737AB distance=78' 20515+3104 RAO 676AC distance=78' 20528+3132 TDT2599 distance=79' 20410+3218 BNU 7Aa,Ab distance=79' 20410+3218 STF2716AB distance=79' 20410+3218 STF2716AC distance=79' 20435+3302 GRV 372 distance=80' 20416+3117 TDT2474 distance=80' 20530+3136 TDT2602 distance=80' 20470+3318 TDT2535 distance=83' 20493+3314 ES 31AB distance=83' 20493+3314 ES 31AC distance=83' 20422+3254 RAO 441 distance=84' 20531+3221 ES 2379 distance=84' 20535+3156 GYL 41 distance=84' 20534+3220 ES 2380 distance=85' 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 20470+3156 GYL 71 46 24.4
Show 20464+3155 TDT2532 127 1.8 8
Show 20471+3210 ARY 61 237 99.4 15
Show 20487+3159 ES 369 316 7.1 23
Show 20452+3146 ARY 86 22 78.4 25
Show 20491+3148 ES 370 44 7.7 29
Show 20447+3146 TDT2513 329 0.6 31
Show 20493+3217 LDS2931 AB 246 34.4 36
Show 20493+3217 HLA 28 AC 125 5.3 36
Show 20487+3124 TDT2555 188 0.9 40
Show 20503+3151 TDT2570 262 3.2 43
Show 20491+3230 GYL 70 188 61.2 44
Show 20437+3137 LDS2929 219 2.5 46
Show 20435+3212 KPP1637 224 12.6 48
Show 20452+3240 TDT2517 144 1.6 50
Show 20493+3113 TDS1101 231 1.2 53
Show 20435+3127 TDT2499 80 0.4 54
Show 20492+3111 LDS2930 273 22.2 54
Show 20483+3247 TDT2550 132 0.9 54
Show 20439+3119 ES 366 128 4.4 55
Show 20469+3252 ARG 93 87 10.9 56
Show 20455+3102 A 1211 242 3.6 58
Show 20423+3202 TDT2482 314 0.7 60
Show 20478+3057 ES 368 359 3.1 61
Show 20437+3243 COU1633 Aa,Ab 239 1.9 62
Show 20437+3243 ES 2376 AB 124 7.6 62
Show 20477+3258 COU1634 61 0.4 64
Show 20419+3210 TDT2479 316 1.1 67
Show 20484+3049 TDT2552 124 2.3 71
Show 20460+3308 GYL 69 357 26.7 73
Show 20456+3043 STF2726 74 5.8 75
Show 20529+3154 GYL 40 22 23.0 76
Show 20529+3149 A 1213 178 3.3 77
Show 20506+3055 BU 67 AB 311 1.5 77
Show 20506+3055 GII 293 Aa,Ab 137 0.1 77
Show 20515+3104 NSN 737 AB 134 1.4 78
Show 20515+3104 RAO 676 AC 22 4.5 78
Show 20528+3132 TDT2599 325 1.7 79
Show 20410+3218 BNU 7 Aa,Ab 19 0.2 79
Show 20410+3218 STF2716 AB 45 2.8 79
Show 20410+3218 STF2716 AC 93 67.1 79
Show 20435+3302 GRV 372 109 17.3 80
Show 20416+3117 TDT2474 224 1.7 80
Show 20530+3136 TDT2602 64 0.6 80
Show 20470+3318 TDT2535 86 0.7 83
Show 20493+3314 ES 31 AB 238 13.8 83
Show 20493+3314 ES 31 AC 143 18.7 83
Show 20422+3254 RAO 441 43 3.2 84
Show 20531+3221 ES 2379 115 7.0 84
Show 20535+3156 GYL 41 203 34.2 84
Show 20534+3220 ES 2380 333 5.5 85

 
 
WDS 20470+3156 : COMPONENTS
 
 
  A
B pa=41.4°
sep=22.58"
 
 
20470+3156 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204658.78+315609.5 Mag 11.06 PmRA -6.00
PmDE -10.0 Tycho2 2691-01625-1
Tycho2
Tycho2 2691-01625-1 Pflag RAmdeg 311.74495634 DEmdeg 31.93597987
PmRA -5.0 PmDE -9.4 E RAmdeg 30 E DEmdeg 26
E pmRA 1.7 E pmDE 1.8 EpRAm 1988.01 EpDEm 1989.27
Num 4 Q RAmdeg 0.4 Q DEmdeg 1.8 Q pmRA 0.5
Q pmDE 1.8 BTmag 11.134 E BTmag 0.041 VTmag 11.063
E VTmag 0.057 Prox 999 TYC T HIP
CCDM RAdeg 311.74497000 DEdeg 31.93600194 EpRA 1990 1.59
EpDE 1990 1.74 E RAdeg 31.0 E DEdeg 25.6 Posflg
Corr 0.2
CCDM
Ccdm 20470+3156 RComp Comp A Note1
Note2 Discov num DRAs -1.13 DDEs 9.2
R dRAs 65 Year Theta Rho
Obs 2 Vmag 9.0 Sp PmNote *
PmRA 0 PmDE -20 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20429N3134A
HIC
 
 
20470+3156 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204659.95+315626.4 Mag 13.1 PmRA -1.00
PmDE -4.0 Calc delta mag 2.04 Calc coord yes
CCDM
Ccdm 20470+3156 RComp Comp B Note1
Note2 Discov num GYL 71 DRAs 0.21 DDEs 24.9
R dRAs 65 Year 1930 Theta 45 Rho 23.3
Obs 1 Vmag 11.0 Sp PmNote
PmRA 0 PmDE -20 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20429N3134B
HIC