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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
Full WDS
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.

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
 
 
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 V1685 Cyg 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
 
 
Constellation Cygnus Tycho2 3160-00391-1 Gaia DR2 2068392276220219648
 
 
WDS 20205+4122 FAB 15 AC : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Fab2000a Hh - Fabricius, C. & Makarov, V.V. 2000A&A...356..141F
Fab2000a A&A 356, 141, 2000
Fab2000b Hh - Fabricius, C. & Makarov, V.V. 2000A&AS..144...45F
Fab2000b A&AS 144, 45, 2000
Fab2000C Hh - Fabricius, C. 2000A&A...364..225R
Fab2000C cited by Richichi (A&A 364, 225, 2000)
Li_1994 Ci j Li, W., Evans, N.J., Harvey, P.M., & Colome,C. 1994ApJ...433..199L
Li_1994 +T ApJ 433, 199, 1994
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr 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 8.1 P.A. 152.50 mag 15.9 20205+4122 FAB 15C sep 18.8 P.A. 197.60 mag 12.81 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 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 311 0.5 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 165 2.6 47
Show 20231+4047 J 787 AC 112 9.5 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 2.8 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 321 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 239 2.4 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 64 0.6 69
Show Sadr 20222+4015 BU 665 A,BC 197 147.1 70
Show 20143+4115 COU2639 244 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=152.5°
sep=8.13"
 
C pa=197.6°
sep=18.84"
pa=221.3°
sep=14.32"
 
 
20205+4122 A
 
 
Name V1685 Cyg Coord arcsec 2000 202028.24+412151.5 Mag 10.95 Spectral class B2 (blue-white)
PmRA -3.00 PmDE -6.0 HIP 100289 Tycho2 3160-00391-1
BD BD+40 4124
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
Hipparcos
Catalog H HIP 100289 Proxy RAhms 20 20 28.24
DEdms +41 21 51.6 Vmag 10.63 VarFlag 2 R Vmag G
RAdeg 305.118 DEdeg 41.3643 AstroRef * Plx 9.25
CCDM N CCDM Nsys Ncomp 1
MultFlag V Source Qual M HIP
Theta Rho HD BD BD+40 4124
CD CP Dm number +40 4124 VIred 0.8
SpType B2e R SpType Coord arcsec 2000 202028.24+412151.6
Hipparcos 2
HIP 100289 Sn 5 So 5 Nc 1
RArad 5.3253081327 DErad 0.7219437947 Plx 12.58 PmRA 1.96
PmDE -4.55 E RArad 2.07 E DErad 2.38 E Plx 2.85
E pmRA 2.15 E pmDE 2.52 Hpmag 10.6185 E Hpmag 0.0088
SHp 0.082 VA 2 BV 0.76 E BV 0.021
VI 0.8
 
 
20205+4122 B
 
 
Coord arcsec 2000 202028.57+412144.3 Mag 15.9 PmRA 60.00 PmDE 86.0
Calc delta mag 4.95 Calc coord yes
 
 
20205+4122 C
 
 
Coord arcsec 2000 202027.73+412133.5 Mag 12.81 PmRA -9.00 PmDE -12.0
Tycho2 3160-01898-1 Calc delta mag 1.86 Calc coord 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