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Current system
20487+3124
TDT 2555


Nearby doubles
14' : 20493+3113
TDS1101

15' : 20492+3111
LDS2930

25' : 20491+3148
ES 370

30' : 20478+3057
ES 368

34' : 20503+3151
TDT2570

36' : 20487+3159
ES 369

36' : 20484+3049
TDT2552

38' : 20506+3055
BU 67AB

40' : 20470+3156
GYL 71

41' : 20515+3104
NSN 737AB

43' : 20464+3155
TDT2532

47' : 20455+3102
A 1211

51' : 20452+3146
ARY 86

51' : 20471+3210
ARY 61

53' : 20528+3132
TDT2599

54' : 20493+3217
LDS2931AB

56' : 20447+3146
TDT2513

57' : 20530+3136
TDT2602

57' : 20456+3043
STF2726

59' : 20529+3149
A 1213

61' : 20529+3154
GYL 40

61' : 20534+3113
TDT2609

63' : 20439+3119
ES 366

64' : 20536+3138
HDS2976

65' : 20506+3024
STT 415

65' : 20437+3137
LDS2929



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

20487+3124 TDT 2555

 
 
20h 48m 43.39s +31° 24' 03.9" P.A. 188.00 sep 0.9 mag 11.77,11.91
 
 
Coord 2000 20487+3124 Discov num TDT2555 Comp Coord arcsec 2000 20 48 43.39 +31 24 03.9
Date first 1991 Date last 2010 Obs 2
Pa first 134 Pa last 188.1 P.A. Now (θ) 188.1°
Sep first 0.8 Sep last 0.88 Sep. Now (ρ) 0.88"
Mag pri 11.77 Mag sec 11.91 delta mag (ΔM) 0.14 Spectral class
Pri motion ra +022 Sec motion ra +022
Pri motion dec -007 Sec motion dec -007
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2687-01943-1 Gaia DR2 1859845912924294144
 
 
WDS 20487+3124 TDT 2555 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
No records found.

 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20487+3124 TDT2555 1991 1 134 0.8 11.77 11.91 204843.39+312403.9
20487+3124 TDT2555 2010 2 188 0.9 11.77 11.91 204843.39+312403.9

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

 
 
WDS 20487+3124 TDT 2555 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20487+3124 TDT 2555 : MEASURES
 
 
No records found.

 
 
WDS 20487+3124 : VIRTUAL EYEPIECE
 
 

20487+3124 TDT2555A mag 11.77 20487+3124 TDT2555B sep 0.9 P.A. 186.90 mag 11.91 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 20487+3124 : ALADIN DSS IMAGE @ 20h 48m 43.39s +31° 24' 03.9"
 
 
 
 
WDS 20487+3124 TDT 2555 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20487+3124 TDT2555 distance=0' 20493+3113 TDS1101 distance=14' 20492+3111 LDS2930 distance=15' 20491+3148 ES 370 distance=25' 20478+3057 ES 368 distance=30' 20503+3151 TDT2570 distance=34' 20487+3159 ES 369 distance=36' 20484+3049 TDT2552 distance=36' 20506+3055 BU 67AB distance=38' 20506+3055 GII 293Aa,Ab distance=38' 20470+3156 GYL 71 distance=40' 20515+3104 NSN 737AB distance=41' 20515+3104 RAO 676AC distance=41' 20464+3155 TDT2532 distance=43' 20455+3102 A 1211 distance=47' 20452+3146 ARY 86 distance=51' 20471+3210 ARY 61 distance=51' 20528+3132 TDT2599 distance=53' 20493+3217 LDS2931AB distance=54' 20493+3217 HLA 28AC distance=54' 20447+3146 TDT2513 distance=56' 20530+3136 TDT2602 distance=57' 20456+3043 STF2726 distance=57' 20529+3149 A 1213 distance=59' 20529+3154 GYL 40 distance=61' 20534+3113 TDT2609 distance=61' 20439+3119 ES 366 distance=63' 20536+3138 HDS2976 distance=64' 20506+3024 STT 415 distance=65' 20437+3137 LDS2929 distance=65' 20523+3038 LDS6417 distance=65' 20525+3040 TDT2594 distance=66' 20491+3230 GYL 70 distance=67' 20435+3127 TDT2499 distance=68' 20535+3057 STTA212 distance=68' 20538+3104 CLL 16 distance=69' 20540+3124 ES 371 distance=69' 20535+3156 GYL 41 distance=70' 20475+3016 COU1176 distance=70' 20483+3009 TDT2551 distance=76' 20448+3022 AG 410 distance=81' 20531+3221 ES 2379 distance=82' 20534+3220 ES 2380 distance=82' 20554+3059 J 2329 distance=83' 20435+3212 KPP1637 distance=83' 20483+3247 TDT2550 distance=84' 20451+3014 ES 367 distance=85' 20538+3029 J 3117 distance=85' 20547+3046 LDS2934 distance=85' 20493+2957 TDS1102 distance=87' 20540+3220 TDT2615 distance=88' 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 20487+3124 TDT2555 188 0.9
Show 20493+3113 TDS1101 231 1.2 14
Show 20492+3111 LDS2930 273 22.2 15
Show 20491+3148 ES 370 44 7.7 25
Show 20478+3057 ES 368 359 3.1 30
Show 20503+3151 TDT2570 262 3.2 34
Show 20487+3159 ES 369 316 7.1 36
Show 20484+3049 TDT2552 124 2.3 36
Show 20506+3055 BU 67 AB 311 1.5 38
Show 20506+3055 GII 293 Aa,Ab 137 0.1 38
Show 20470+3156 GYL 71 46 24.4 40
Show 20515+3104 NSN 737 AB 134 1.4 41
Show 20515+3104 RAO 676 AC 22 4.5 41
Show 20464+3155 TDT2532 127 1.8 43
Show 20455+3102 A 1211 242 3.6 47
Show 20452+3146 ARY 86 22 78.4 51
Show 20471+3210 ARY 61 237 99.4 51
Show 20528+3132 TDT2599 325 1.7 53
Show 20493+3217 LDS2931 AB 246 34.4 54
Show 20493+3217 HLA 28 AC 125 5.3 54
Show 20447+3146 TDT2513 329 0.6 56
Show 20530+3136 TDT2602 64 0.6 57
Show 20456+3043 STF2726 74 5.8 57
Show 20529+3149 A 1213 178 3.3 59
Show 20529+3154 GYL 40 22 23.0 61
Show 20534+3113 TDT2609 11 0.5 61
Show 20439+3119 ES 366 128 4.4 63
Show 20536+3138 HDS2976 248 0.3 64
Show 20506+3024 STT 415 234 3.7 65
Show 20437+3137 LDS2929 219 2.5 65
Show 20523+3038 LDS6417 295 228.9 65
Show 20525+3040 TDT2594 160 0.8 66
Show 20491+3230 GYL 70 188 61.2 67
Show 20435+3127 TDT2499 80 0.4 68
Show 20535+3057 STTA212 155 65.7 68
Show 20538+3104 CLL 16 184 32.0 69
Show 20540+3124 ES 371 134 3.5 69
Show 20535+3156 GYL 41 203 34.2 70
Show 20475+3016 COU1176 45 0.4 70
Show 20483+3009 TDT2551 41 3.2 76
Show 20448+3022 AG 410 187 19.0 81
Show 20531+3221 ES 2379 115 7.0 82
Show 20534+3220 ES 2380 333 5.5 82
Show 20554+3059 J 2329 11 6.5 83
Show 20435+3212 KPP1637 224 12.6 83
Show 20483+3247 TDT2550 132 0.9 84
Show 20451+3014 ES 367 244 6.9 85
Show 20538+3029 J 3117 40 5.5 85
Show 20547+3046 LDS2934 178 10.8 85
Show 20493+2957 TDS1102 19 1.1 87
Show 20540+3220 TDT2615 281 0.4 88

 
 
WDS 20487+3124 : COMPONENTS
 
 
  A
B pa=186.9°
sep=0.88"
 
 
20487+3124 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204843.39+312403.9 Mag 11.77 PmRA 22.00
PmDE -7.0 Tycho2 2687-01943-1
Tycho2
Tycho2 2687-01943-1 Pflag RAmdeg 312.18088282 DEmdeg 31.40103112
PmRA 21.5 PmDE -6.6 E RAmdeg 29 E DEmdeg 32
E pmRA 1.7 E pmDE 1.6 EpRAm 1985.07 EpDEm 1986.42
Num 6 Q RAmdeg 0.8 Q DEmdeg 1.0 Q pmRA 0.8
Q pmDE 1.0 BTmag 11.660 E BTmag 0.057 VTmag 11.176
E VTmag 0.059 Prox 999 TYC T HIP
CCDM RAdeg 312.18081528 DEdeg 31.40104556 EpRA 1990 1.60
EpDE 1990 1.78 E RAdeg 38.8 E DEdeg 34.8 Posflg
Corr 0.3
 
 
20487+3124 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204843.38+312403.0 Mag 11.91 PmRA 22.00
PmDE -7.0 Calc delta mag 0.14 Calc coord yes