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Doubles in session


Current system
20205+4122
FAB 15 AC


Nearby doubles
1' : 20205+4127
LI 4

10' : 20212+4128
A 287

13' : 20215+4127
TDT2203

16' : 20197+4108
STTA205

22' : 20187+4113
COU2640

23' : 20185+4123
TDT2154

26' : 20186+4136
ES 1675

28' : 20181+4122
ES 1674

31' : 20197+4151
MMA 3

35' : 20213+4155
TDT2201

40' : 20171+4127
ARN 97

42' : 20210+4041
TDT2199

43' : 20232+4052
CIA 46

44' : 20221+4042
ES 1676

46' : 20238+4146
COU2641

46' : 20231+4048
GRF 15

47' : 20231+4047
J 787AB

47' : 20181+4044
STF2666AB

48' : 20232+4046
ES 1677

52' : 20207+4031
TDT2193

55' : 20231+4037
TDT2228

55' : 20184+4033
ARN 49

55' : 20168+4158
ES 1568AB

56' : 20254+4129
COU2642

58' : 20256+4132
COU2643

61' : 20177+4030
HDS2897



Selections
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Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20205+4122 FAB 15 AC

 
 
20h 20m 28.24s +41° 21' 51.5" P.A. 203.00 sep 19.5 mag 10.95,12.81 Sp B2 dist. 79.49 pc (259.3 l.y.)
 
 
Coord 2000 20205+4122 Discov num FAB  15 Comp AC Coord arcsec 2000 20 20 28.24 +41 21 51.5
Date first 1892 Date last 2015 Obs 13
Pa first 201 Pa last 202.9 P.A. Now (θ) 202.9°
Sep first 18.6 Sep last 19.497 Sep. Now (ρ) 19.497"
Mag pri 10.95 Mag sec 12.81 delta mag (ΔM) 1.86 Spectral class B2 (blue-white)
Pri motion ra -003 Sec motion ra -009
Pri motion dec -006 Sec motion dec -012
Notes
rPM=0.566
Nature of this double is uncertain.
 
 
20205+4122 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 20 28 +41 21 52 LI 5 AB 2015 9 145 8.8 10.95 15.90 4.95
Show 20 20 28 +41 21 52 FAB 15 AC 2015 13 203 19.5 10.95 12.81 1.86 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name V1685 Cyg Constellation Cygnus HIP 100289 Tycho2 3160-00391-1
Gaia DR2 2068392276220219648 BD BD+40 4124 Distance 79.49 Distance ly 259.3
 
 
WDS 20205+4122 FAB 15 AC : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
FAB Fabricius, C. & Makarov, V.V.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
20205+4122 FAB 15 AC 1998 6 203 19.4 10.95 12.81 B2 D 202028.24+412151.5
20205+4122 FAB 15 AC 2009 7 203 19.5 10.95 12.81 B2 D 202028.24+412151.5
20205+4122 FAB 15 AC 2015 9 203 19.5 10.95 12.81 B2 202028.24+412151.5

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

 
 
WDS 20205+4122 FAB 15 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20205+4122 FAB 15 AC : MEASURES
 
 
No records found.

 
 
WDS 20205+4122 : VIRTUAL EYEPIECE
 
 

20205+4122 LI 5A mag 10.95 Sp B2 20205+4122 LI 5B sep 8.8 P.A. 145.20 mag 15.9 20205+4122 FAB 15C sep 19.5 P.A. 202.90 mag 12.81 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20205+4122 : ALADIN DSS IMAGE @ 20h 20m 28.24s +41° 21' 51.5"
 
 
 
 
WDS 20205+4122 FAB 15 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20205+4122 LI 5AB distance=1' 20205+4122 FAB 15AC distance=1' 20205+4127 LI 4 distance=1' 20212+4128 A 287 distance=10' 20215+4127 TDT2203 distance=13' 20197+4108 STTA205 distance=16' 20187+4113 COU2640 distance=22' 20185+4123 TDT2154 distance=23' 20186+4136 ES 1675 distance=26' 20181+4122 ES 1674 distance=28' 20197+4151 MMA 3 distance=31' 20213+4155 TDT2201 distance=35' 20171+4127 ARN 97 distance=40' 20210+4041 TDT2199 distance=42' 20232+4052 CIA 46 distance=43' 20221+4042 ES 1676 distance=44' 20238+4146 COU2641 distance=46' 20231+4048 GRF 15 distance=46' 20231+4047 J 787AB distance=47' 20231+4047 J 787AC distance=47' 20231+4047 J 787AD distance=47' 20231+4047 J 787CD distance=47' 20181+4044 CHR 96Aa,Ab distance=47' 20181+4044 STF2666AB distance=47' 20181+4044 STF2666AC distance=47' 20181+4044 TAR 5AD distance=47' 20181+4044 STF2666CD distance=47' 20232+4046 ES 1677 distance=48' 20207+4031 TDT2193 distance=52' 20231+4037 TDT2228 distance=55' 20184+4033 ARN 49 distance=55' 20168+4158 ES 1568AB distance=55' 20168+4158 ES 1568BC distance=55' 20254+4129 COU2642 distance=56' 20256+4132 COU2643 distance=58' 20177+4030 HDS2897 distance=61' 20151+4118 A 387AB distance=61' 20151+4118 A 387AC distance=61' 20151+4118 A 387CD distance=61' 20204+4021 TDT2186 distance=61' 20251+4042 TDT2253 distance=66' 20256+4155 ARG 92AB distance=67' 20264+4125 A 292 distance=67' 20189+4227 HJ 1503 distance=68' 20144+4112 TDT2112 distance=69' 20222+4015 BU 665A,BC (Sadr) distance=70' 20143+4115 COU2639 distance=70' 20176+4020 BRT2259 distance=71' 20222+4015 BU 665BC,D distance=72' 20222+4015 BU 665BC distance=72' 20169+4022 BU 661AB distance=73' 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 20205+4122 LI 5 AB 145 8.8 1
Show 20205+4122 FAB 15 AC 203 19.5 1
Show 20205+4127 LI 4 333 8.9 1
Show 20212+4128 A 287 132 1.5 10
Show 20215+4127 TDT2203 225 0.7 13
Show 20197+4108 STTA205 321 45.5 16
Show 20187+4113 COU2640 265 0.5 22
Show 20185+4123 TDT2154 195 3.1 23
Show 20186+4136 ES 1675 324 2.2 26
Show 20181+4122 ES 1674 125 4.9 28
Show 20197+4151 MMA 3 105 11.0 31
Show 20213+4155 TDT2201 359 0.6 35
Show 20171+4127 ARN 97 220 12.8 40
Show 20210+4041 TDT2199 122 0.8 42
Show 20232+4052 CIA 46 14 0.0 43
Show 20221+4042 ES 1676 285 2.4 44
Show 20238+4146 COU2641 279 1.0 46
Show 20231+4048 GRF 15 139 199.3 46
Show 20231+4047 J 787 AB 161 2.9 47
Show 20231+4047 J 787 AC 112 9.4 47
Show 20231+4047 J 787 AD 293 15.8 47
Show 20231+4047 J 787 CD 292 25.3 47
Show 20181+4044 CHR 96 Aa,Ab 151 0.1 47
Show 20181+4044 STF2666 AB 245 2.9 47
Show 20181+4044 STF2666 AC 207 34.0 47
Show 20181+4044 TAR 5 AD 181 49.6 47
Show 20181+4044 STF2666 CD 142 24.1 47
Show 20232+4046 ES 1677 270 7.4 48
Show 20207+4031 TDT2193 288 1.2 52
Show 20231+4037 TDT2228 242 0.4 55
Show 20184+4033 ARN 49 313 30.2 55
Show 20168+4158 ES 1568 AB 292 12.8 55
Show 20168+4158 ES 1568 BC 187 2.3 55
Show 20254+4129 COU2642 322 0.7 56
Show 20256+4132 COU2643 108 0.5 58
Show 20177+4030 HDS2897 273 0.3 61
Show 20151+4118 A 387 AB 151 5.1 61
Show 20151+4118 A 387 AC 222 21.6 61
Show 20151+4118 A 387 CD 19 9.0 61
Show 20204+4021 TDT2186 349 0.5 61
Show 20251+4042 TDT2253 186 4.2 66
Show 20256+4155 ARG 92 AB 309 41.7 67
Show 20264+4125 A 292 134 2.1 67
Show 20189+4227 HJ 1503 73 16.9 68
Show 20144+4112 TDT2112 63 0.6 69
Show Sadr 20222+4015 BU 665 A,BC 197 147.1 70
Show 20143+4115 COU2639 246 0.4 70
Show 20176+4020 BRT2259 29 1.4 71
Show 20222+4015 BU 665 BC,D 131 41.0 72
Show 20222+4015 BU 665 BC 302 1.9 72
Show 20169+4022 BU 661 AB 69 12.3 73

 
 
WDS 20205+4122 : COMPONENTS
 
 
  A B
B pa=145.2°
sep=8.78"
 
C pa=202.9°
sep=19.50"
pa=229.5°
sep=16.56"
 
 
20205+4122 A
 
 
Coord arcsec 2000 202028.24+412151.5 Mag 10.95 Spectral class B2 (blue-white) PmRA -3.00
PmDE -6.0 Tycho2 3160-00391-1
Tycho2
Tycho2 3160-00391-1 Pflag RAmdeg 305.11768544 DEmdeg 41.36429511
PmRA -1.8 PmDE -7.7 E RAmdeg 30 E DEmdeg 35
E pmRA 1.4 E pmDE 1.3 EpRAm 1983.17 EpDEm 1982.91
Num 5 Q RAmdeg 2.7 Q DEmdeg 1.0 Q pmRA 2.6
Q pmDE 1.0 BTmag 11.609 E BTmag 0.066 VTmag 10.949
E VTmag 0.060 Prox 193 TYC T HIP 100289
CCDM RAdeg 305.11765972 DEdeg 41.36431472 EpRA 1990 1.53
EpDE 1990 1.67 E RAdeg 42.0 E DEdeg 37.9 Posflg
Corr 0.1
 
 
20205+4122 B
 
 
Coord arcsec 2000 202028.68+412144.3 Mag 15.9 PmRA 60.00 PmDE 86.0
Delta magnitude 4.95 Coordinate calculated yes
 
 
20205+4122 C
 
 
Coord arcsec 2000 202027.57+412133.5 Mag 12.81 PmRA -9.00 PmDE -12.0
Tycho2 3160-01898-1 Delta magnitude 1.86 Coordinate calculated yes
Tycho2
Tycho2 3160-01898-1 Pflag RAmdeg 305.11486710 DEmdeg 41.35932877
PmRA -9.3 PmDE -12.4 E RAmdeg 93 E DEmdeg 87
E pmRA 1.9 E pmDE 1.8 EpRAm 1950.73 EpDEm 1949.64
Num 4 Q RAmdeg 2.5 Q DEmdeg 1.4 Q pmRA 2.5
Q pmDE 1.3 BTmag 12.875 E BTmag 0.247 VTmag 12.812
E VTmag 0.260 Prox 193 TYC HIP
CCDM RAdeg 305.11489694 DEdeg 41.35935750 EpRA 1990 1.56
EpDE 1990 1.65 E RAdeg 122.3 E DEdeg 115.2 Posflg
Corr 0.0