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Doubles in session


Current system
20508+4120
TDT 2575


Nearby doubles
4' : 20509+4123
LDS2458

7' : 20510+4125
COU2427

15' : 20514+4134
LDS2460

17' : 20516+4106
ES 1683

24' : 20519+4140
COU2428

26' : 20525+4138
LDS2463

30' : 20511+4051
TDT2578

32' : 20480+4126
ES 1681

36' : 20534+4139
ES 1574

36' : 20539+4115
KPP1503

40' : 20539+4139
BRT2280

40' : 20542+4111
ES 1684

47' : 20495+4035
COU2426

47' : 20485+4041
ES 1682

54' : 20555+4112
ES 1686

55' : 20479+4204
ES 1573

56' : 20476+4038
CNT 9

56' : 20544+4042
STT 420

56' : 20534+4208
LDS2464

57' : 20477+4204
BU 268

59' : 20546+4042
ES 1685AB

60' : 20526+4024
GRV 391

61' : 20488+4024
ALI1192

65' : 20511+4224
BRT2277

67' : 20547+4211
CVR 233

69' : 20569+4122
LDS2471



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

20508+4120 TDT 2575

 
 
20h 50m 45.76s +41° 19' 57.7" P.A. 4.00 sep 2.6 mag 11.02,12.48
 
 
Coord 2000 20508+4120 Discov num TDT2575 Comp Coord arcsec 2000 20 50 45.76 +41 19 57.7
Date first 1991 Date last 1991 Obs 1
Pa first 4 Pa last 3.9 P.A. Now (θ) 3.9°
Sep first 2.6 Sep last 2.56 Sep. Now (ρ) 2.56"
Mag pri 11.02 Mag sec 12.48 delta mag (ΔM) 1.46 Spectral class
Pri motion ra +004 Sec motion ra +004
Pri motion dec -032 Sec motion dec -032
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3175-00840-1 Gaia DR2 2065763790593669376
 
 
WDS 20508+4120 TDT 2575 : 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
20508+4120 TDT2575 1991 1 4 2.6 11.02 12.48 205045.76+411957.7

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

 
 
WDS 20508+4120 TDT 2575 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20508+4120 TDT 2575 : MEASURES
 
 
No records found.

 
 
WDS 20508+4120 : VIRTUAL EYEPIECE
 
 

20508+4120 TDT2575A mag 11.02 20508+4120 TDT2575B sep 2.6 P.A. 2.90 mag 12.48 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 20508+4120 : ALADIN DSS IMAGE @ 20h 50m 45.76s +41° 19' 57.7"
 
 
 
 
WDS 20508+4120 TDT 2575 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20508+4120 TDT2575 distance=0' 20509+4123 LDS2458 distance=4' 20510+4125 COU2427 distance=7' 20514+4134 LDS2460 distance=15' 20516+4106 ES 1683 distance=17' 20519+4140 COU2428 distance=24' 20525+4138 LDS2463 distance=26' 20511+4051 TDT2578 distance=30' 20480+4126 ES 1681 distance=32' 20534+4139 ES 1574 distance=36' 20539+4115 KPP1503 distance=36' 20539+4139 BRT2280 distance=40' 20542+4111 ES 1684 distance=40' 20495+4035 COU2426 distance=47' 20485+4041 ES 1682 distance=47' 20555+4112 ES 1686 distance=54' 20479+4204 ES 1573 distance=55' 20476+4038 CNT 9 distance=56' 20544+4042 STT 420 distance=56' 20534+4208 LDS2464 distance=56' 20477+4204 BU 268 distance=57' 20546+4042 ES 1685AB distance=59' 20546+4042 ES 1685BC distance=59' 20526+4024 GRV 391 distance=60' 20488+4024 ALI1192 distance=61' 20511+4224 BRT2277 distance=65' 20547+4211 CVR 233 distance=67' 20569+4122 LDS2471 distance=69' 20447+4131 MLB 25 distance=70' 20520+4009 MLB 955 distance=73' 20572+4110 HDS2986 distance=73' 20444+4103 COU2423AB distance=74' 20444+4103 GRV 375AC distance=74' 20550+4219 LDS2467 distance=76' 20472+4225 STT 414AB distance=77' 20472+4225 BOT 4AC distance=77' 20553+4218 OSO 137AB distance=77' 20553+4218 OSO 137AC distance=77' 20553+4218 OSO 137AD distance=77' 20553+4218 OSO 137AE distance=77' 20553+4218 OSO 137AF distance=77' 20553+4218 OSO 137AG distance=77' 20466+4020 ES 1982 distance=78' 20513+4238 A 614 distance=79' 20508+4238 LDS2457 distance=79' 20576+4058 A 400 distance=80' 20446+4041 HJ 1574 distance=80' 20446+4040 HJ 1573 distance=81' 20498+3958 SEI1267 distance=82' 20484+4002 J 1237BC distance=83' 20486+4000 TOB 198 distance=83' 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 20508+4120 TDT2575 4 2.6
Show 20509+4123 LDS2458 123 14.1 4
Show 20510+4125 COU2427 312 0.5 7
Show 20514+4134 LDS2460 195 8.4 15
Show 20516+4106 ES 1683 205 5.2 17
Show 20519+4140 COU2428 113 0.7 24
Show 20525+4138 LDS2463 151 27.8 26
Show 20511+4051 TDT2578 81 2.6 30
Show 20480+4126 ES 1681 146 2.1 32
Show 20534+4139 ES 1574 158 1.4 36
Show 20539+4115 KPP1503 94 11.3 36
Show 20539+4139 BRT2280 192 5.0 40
Show 20542+4111 ES 1684 277 7.9 40
Show 20495+4035 COU2426 328 1.2 47
Show 20485+4041 ES 1682 152 3.1 47
Show 20555+4112 ES 1686 196 7.7 54
Show 20479+4204 ES 1573 39 5.0 55
Show 20476+4038 CNT 9 292 9.0 56
Show 20544+4042 STT 420 2 5.8 56
Show 20534+4208 LDS2464 331 43.8 56
Show 20477+4204 BU 268 201 0.4 57
Show 20546+4042 ES 1685 AB 73 24.2 59
Show 20546+4042 ES 1685 BC 74 2.8 59
Show 20526+4024 GRV 391 144 59.5 60
Show 20488+4024 ALI1192 2 16.5 61
Show 20511+4224 BRT2277 230 4.2 65
Show 20547+4211 CVR 233 235 61.5 67
Show 20569+4122 LDS2471 43 3.2 69
Show 20447+4131 MLB 25 207 5.7 70
Show 20520+4009 MLB 955 27 6.6 73
Show 20572+4110 HDS2986 176 0.1 73
Show 20444+4103 COU2423 AB 180 0.3 74
Show 20444+4103 GRV 375 AC 197 31.4 74
Show 20550+4219 LDS2467 193 20.0 76
Show 20472+4225 STT 414 AB 95 9.9 77
Show 20472+4225 BOT 4 AC 16 104.9 77
Show 20553+4218 OSO 137 AB 116 10.8 77
Show 20553+4218 OSO 137 AC 225 11.6 77
Show 20553+4218 OSO 137 AD 276 14.3 77
Show 20553+4218 OSO 137 AE 295 14.9 77
Show 20553+4218 OSO 137 AF 137 16.8 77
Show 20553+4218 OSO 137 AG 346 25.0 77
Show 20466+4020 ES 1982 301 3.9 78
Show 20513+4238 A 614 333 1.5 79
Show 20508+4238 LDS2457 106 5.1 79
Show 20576+4058 A 400 69 1.9 80
Show 20446+4041 HJ 1574 278 7.4 80
Show 20446+4040 HJ 1573 274 9.8 81
Show 20498+3958 SEI1267 308 3.1 82
Show 20484+4002 J 1237 BC 355 5.6 83
Show 20486+4000 TOB 198 96 21.0 83

 
 
WDS 20508+4120 : COMPONENTS
 
 
  A
B pa=2.9°
sep=2.56"
 
 
20508+4120 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205045.76+411957.7 Mag 11.02 PmRA 4.00
PmDE -32.0 Tycho2 3175-00840-1
Tycho2
Tycho2 3175-00840-1 Pflag RAmdeg 312.69066548 DEmdeg 41.33271241
PmRA 3.5 PmDE -32.2 E RAmdeg 33 E DEmdeg 36
E pmRA 1.5 E pmDE 1.4 EpRAm 1982.85 EpDEm 1982.08
Num 5 Q RAmdeg 0.4 Q DEmdeg 1.2 Q pmRA 0.4
Q pmDE 1.2 BTmag 12.324 E BTmag 0.152 VTmag 11.053
E VTmag 0.064 Prox 999 TYC HIP
CCDM RAdeg 312.69065000 DEdeg 41.33278028 EpRA 1990 1.61
EpDE 1990 1.73 E RAdeg 52.4 E DEdeg 47.6 Posflg
Corr 0.1
 
 
20508+4120 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205045.77+412000.3 Mag 12.48 PmRA 4.00
PmDE -32.0 Calc delta mag 1.46 Calc coord yes