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Doubles in session


Current system
20492+3111
LDS 2930


Nearby doubles
3' : 20493+3113
TDS1101

15' : 20487+3124
TDT2555

23' : 20478+3057
ES 368

25' : 20506+3055
BU 67AB

25' : 20484+3049
TDT2552

30' : 20515+3104
NSN 737AB

38' : 20491+3148
ES 370

42' : 20503+3151
TDT2570

49' : 20455+3102
A 1211

49' : 20487+3159
ES 369

50' : 20506+3024
STT 415

51' : 20528+3132
TDT2599

52' : 20523+3038
LDS6417

53' : 20525+3040
TDT2594

54' : 20470+3156
GYL 71

54' : 20534+3113
TDT2609

54' : 20456+3043
STF2726

56' : 20530+3136
TDT2602

57' : 20464+3155
TDT2532

58' : 20535+3057
STTA212

60' : 20475+3016
COU1176

60' : 20538+3104
CLL 16

61' : 20529+3149
A 1213

62' : 20536+3138
HDS2976

63' : 20452+3146
ARY 86

64' : 20483+3009
TDT2551



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

20492+3111 LDS 2930

 
 
20h 49m 13.24s +31° 11' 02.4" P.A. 273.00 sep 22.2 mag 10.50,15.70
 
 
Coord 2000 20492+3111 Discov num LDS2930 Comp Coord arcsec 2000 20 49 13.24 +31 11 02.4
Date first 1953 Date last 2015 Obs 9
Pa first 273 Pa last 272.9 P.A. Now (θ) 272.9°
Sep first 22.0 Sep last 22.168 Sep. Now (ρ) 22.168"
Mag pri 10.50 Mag sec 15.70 delta mag (ΔM) 5.2 Spectral class
Pri motion ra +054 Sec motion ra
Pri motion dec +019 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2687-01507-1 Gaia DR2 1859558459355759488
 
 
WDS 20492+3111 LDS 2930 : 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
20492+3111 LDS2930 1999 2 273 22.1 10.50 15.70 D 204913.24+311102.4
20492+3111 LDS2930 2002 3 273 22.2 10.50 15.70 D 204913.24+311102.4
20492+3111 LDS2930 2010 4 273 22.0 10.50 15.70 204913.24+311102.4
20492+3111 LDS2930 2015 5 273 22.2 10.50 15.70 204913.24+311102.4

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

 
 
WDS 20492+3111 LDS 2930 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20492+3111 LDS 2930 : MEASURES
 
 
No records found.

 
 
WDS 20492+3111 : VIRTUAL EYEPIECE
 
 

20492+3111 LDS2930A mag 10.5 20492+3111 LDS2930B sep 19.0 P.A. 273.40 mag 15.7 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 20492+3111 : ALADIN DSS IMAGE @ 20h 49m 13.24s +31° 11' 02.4"
 
 
 
 
WDS 20492+3111 LDS 2930 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20492+3111 LDS2930 distance=0' 20493+3113 TDS1101 distance=3' 20487+3124 TDT2555 distance=15' 20478+3057 ES 368 distance=23' 20506+3055 BU 67AB distance=25' 20506+3055 GII 293Aa,Ab distance=25' 20484+3049 TDT2552 distance=25' 20515+3104 NSN 737AB distance=30' 20515+3104 RAO 676AC distance=30' 20491+3148 ES 370 distance=38' 20503+3151 TDT2570 distance=42' 20455+3102 A 1211 distance=49' 20487+3159 ES 369 distance=49' 20506+3024 STT 415 distance=50' 20528+3132 TDT2599 distance=51' 20523+3038 LDS6417 distance=52' 20525+3040 TDT2594 distance=53' 20470+3156 GYL 71 distance=54' 20534+3113 TDT2609 distance=54' 20456+3043 STF2726 distance=54' 20530+3136 TDT2602 distance=56' 20464+3155 TDT2532 distance=57' 20535+3057 STTA212 distance=58' 20475+3016 COU1176 distance=60' 20538+3104 CLL 16 distance=60' 20529+3149 A 1213 distance=61' 20536+3138 HDS2976 distance=62' 20452+3146 ARY 86 distance=63' 20483+3009 TDT2551 distance=64' 20529+3154 GYL 40 distance=64' 20540+3124 ES 371 distance=64' 20471+3210 ARY 61 distance=65' 20493+3217 LDS2931AB distance=67' 20493+3217 HLA 28AC distance=67' 20447+3146 TDT2513 distance=68' 20439+3119 ES 366 distance=69' 20538+3029 J 3117 distance=71' 20535+3156 GYL 41 distance=71' 20554+3059 J 2329 distance=73' 20547+3046 LDS2934 distance=74' 20493+2957 TDS1102 distance=74' 20437+3137 LDS2929 distance=74' 20435+3127 TDT2499 distance=76' 20448+3022 AG 410 distance=76' 20519+3002 TDT2587 distance=77' 20451+3014 ES 367 distance=78' 20491+3230 GYL 70 distance=79' 20554+3147 TDT2630 distance=87' 20534+3220 ES 2380 distance=88' 20531+3221 ES 2379 distance=88' 20487+2943 TDT2556 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 20492+3111 LDS2930 273 22.2
Show 20493+3113 TDS1101 231 1.2 3
Show 20487+3124 TDT2555 188 0.9 15
Show 20478+3057 ES 368 359 3.1 23
Show 20506+3055 BU 67 AB 311 1.5 25
Show 20506+3055 GII 293 Aa,Ab 137 0.1 25
Show 20484+3049 TDT2552 124 2.3 25
Show 20515+3104 NSN 737 AB 134 1.4 30
Show 20515+3104 RAO 676 AC 22 4.5 30
Show 20491+3148 ES 370 44 7.7 38
Show 20503+3151 TDT2570 262 3.2 42
Show 20455+3102 A 1211 242 3.6 49
Show 20487+3159 ES 369 316 7.1 49
Show 20506+3024 STT 415 234 3.7 50
Show 20528+3132 TDT2599 325 1.7 51
Show 20523+3038 LDS6417 295 228.9 52
Show 20525+3040 TDT2594 160 0.8 53
Show 20470+3156 GYL 71 46 24.4 54
Show 20534+3113 TDT2609 11 0.5 54
Show 20456+3043 STF2726 74 5.8 54
Show 20530+3136 TDT2602 64 0.6 56
Show 20464+3155 TDT2532 127 1.8 57
Show 20535+3057 STTA212 155 65.7 58
Show 20475+3016 COU1176 45 0.4 60
Show 20538+3104 CLL 16 184 32.0 60
Show 20529+3149 A 1213 178 3.3 61
Show 20536+3138 HDS2976 248 0.3 62
Show 20452+3146 ARY 86 22 78.4 63
Show 20483+3009 TDT2551 41 3.2 64
Show 20529+3154 GYL 40 22 23.0 64
Show 20540+3124 ES 371 134 3.5 64
Show 20471+3210 ARY 61 237 99.4 65
Show 20493+3217 LDS2931 AB 246 34.4 67
Show 20493+3217 HLA 28 AC 125 5.3 67
Show 20447+3146 TDT2513 329 0.6 68
Show 20439+3119 ES 366 128 4.4 69
Show 20538+3029 J 3117 40 5.5 71
Show 20535+3156 GYL 41 203 34.2 71
Show 20554+3059 J 2329 11 6.5 73
Show 20547+3046 LDS2934 178 10.8 74
Show 20493+2957 TDS1102 19 1.1 74
Show 20437+3137 LDS2929 219 2.5 74
Show 20435+3127 TDT2499 80 0.4 76
Show 20448+3022 AG 410 187 19.0 76
Show 20519+3002 TDT2587 349 1.0 77
Show 20451+3014 ES 367 244 6.9 78
Show 20491+3230 GYL 70 188 61.2 79
Show 20554+3147 TDT2630 86 1.9 87
Show 20534+3220 ES 2380 333 5.5 88
Show 20531+3221 ES 2379 115 7.0 88
Show 20487+2943 TDT2556 280 0.8 88

 
 
WDS 20492+3111 : COMPONENTS
 
 
  A
B pa=273.4°
sep=18.97"
 
 
20492+3111 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204913.24+311102.4 Mag 10.5 PmRA 54.00
PmDE 19.0 Tycho2 2687-01507-1
Tycho2
Tycho2 2687-01507-1 Pflag RAmdeg 312.30518569 DEmdeg 31.18400040
PmRA 54.4 PmDE 20.2 E RAmdeg 22 E DEmdeg 20
E pmRA 2.2 E pmDE 2.1 EpRAm 1988.76 EpDEm 1989.37
Num 4 Q RAmdeg 0.6 Q DEmdeg 0.8 Q pmRA 0.6
Q pmDE 0.9 BTmag 10.932 E BTmag 0.040 VTmag 10.498
E VTmag 0.037 Prox 999 TYC T HIP
CCDM RAdeg 312.30503389 DEdeg 31.18395139 EpRA 1990 1.53
EpDE 1990 1.73 E RAdeg 25.3 E DEdeg 22.1 Posflg
Corr 0.1
CCDM
Ccdm 20492+3111 RComp Comp A Note1
Note2 Discov num DRAs 1.28 DDEs 2.2
R dRAs 65 Year Theta Rho
Obs 2 Vmag 10.7 Sp PmNote *
PmRA 59 PmDE 10 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20451N3049A
HIC
 
 
20492+3111 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204911.76+311103.5 Mag 15.7 Calc delta mag 5.2
Calc coord yes
CCDM
Ccdm 20492+3111 RComp Comp B Note1
Note2 Discov num LDS2930 DRAs -0.45 DDEs 3.3
R dRAs 65 Year 1953 Theta 273 Rho 22.0
Obs 1 Vmag 15.9 Sp PmNote
PmRA 59 PmDE 10 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20451N3049B
HIC