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Current system
21166+3018
J 3131 AB


Nearby doubles
20' : 21167+3001
MLB1091

21' : 21169+3001
MLB 538AB

25' : 21155+3042
KPP 488

26' : 21156+2957
TDT2864

26' : 21167+2955
TDT2878

27' : 21149+3037
BRT 287

29' : 21182+3035
HO 154AB

29' : 21161+2951
LDS1053AB

33' : 21162+2948
TDT2872

34' : 21153+3051
GRV 439

37' : 21180+3049
COU1183

37' : 21185+3037
FYM 538AB

40' : 21145+3052
TDT2850

45' : 21129+3014
BUP 227AB

47' : 21142+3058
COU 834

53' : 21162+2928
J 1784

55' : 21155+3114
TDT2862

56' : 21133+3100
BRT 286

59' : 21129+2944
MLB 667

62' : 21117+3038
J 1235

64' : 21115+3033
ALD 5

66' : 21150+2917
GRV 438

68' : 21176+2915
COU 835AB

68' : 21212+3044
TDT2914

70' : 21118+2943
HAU 27

71' : 21205+3107
J 3135



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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21166+3018 J 3131 AB

 
 
21h 16m 19.01s +30° 20' 27.8" P.A. 253.00 sep 24.6 mag 11.80,13.00
 
 
Coord 2000 21166+3018 Discov num J  3131 Comp AB Coord arcsec 2000 21 16 19.01 +30 20 27.8
Date first 1944 Date last 2016 Obs 8
Pa first 250 Pa last 252.9 P.A. Now (θ) 252.9°
Sep first 25.0 Sep last 24.624 Sep. Now (ρ) 24.624"
Mag pri 11.80 Mag sec 13.00 delta mag (ΔM) 1.2 Spectral class
Pri motion ra +002 Sec motion ra +012
Pri motion dec -004 Sec motion dec +003
Notes
rPM=0.987
This double is not physical.
 
 
21166+3018 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 16 19 +30 20 28 J 3131 AB 2016 8 253 24.6 11.80 13.00 1.20 <===
Show 21 16 17 +30 20 20 J 3131 BC 2016 8 229 5.5 13.00 14.60 1.60
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1851985813525854464
 
 
WDS 21166+3018 J 3131 AB : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
J Jonckheere, R.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
21166+3018 J 3131 AB 1944 1 250 25.0 12.10 12.52 211619.01+302027.8
21166+3018 J 3131 AB 1998 2 253 24.8 12.10 12.52 D 211619.01+302027.8
21166+3018 J 3131 AB 2002 3 253 24.8 12.10 12.52 D 211619.01+302027.8
21166+3018 J 3131 AB 2015 4 253 24.6 11.80 13.40 211619.01+302027.8
21166+3018 J 3131 AB 2016 8 253 24.6 11.80 13.00 211619.01+302027.8

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

 
 
WDS 21166+3018 J 3131 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21166+3018 J 3131 AB : MEASURES
 
 
No records found.

 
 
WDS 21166+3018 : VIRTUAL EYEPIECE
 
 

21166+3018 J 3131A mag 11.8 21166+3018 J 3131B sep 25.7 P.A. 252.80 mag 13 21166+3018 J 3131C sep 30.8 P.A. 248.70 mag 14.6 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21166+3018 : ALADIN DSS IMAGE @ 21h 16m 19.01s +30° 20' 27.8"
 
 
 
 
WDS 21166+3018 J 3131 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21166+3018 J 3131AB distance=1' 21166+3018 J 3131BC distance=1' 21167+3001 MLB1091 distance=20' 21169+3001 MLB 538AB distance=21' 21169+3001 DAM 227AC distance=21' 21155+3042 KPP 488 distance=25' 21156+2957 TDT2864 distance=26' 21167+2955 TDT2878 distance=26' 21149+3037 BRT 287 distance=27' 21182+3035 POP 228NK distance=28' 21182+3035 HO 154AB distance=29' 21182+3035 POP 228AC distance=29' 21182+3035 NOV 1AD distance=29' 21182+3035 POP 228AN distance=29' 21182+3035 NOV 1AX distance=29' 21161+2951 LDS1053AB distance=29' 21161+2951 BWL 56Aa,Ab distance=29' 21161+2951 BWL 56AC distance=29' 21161+2951 BWL 56AD distance=29' 21161+2951 BWL 56AE distance=29' 21182+3035 NOV 1XL distance=29' 21182+3035 NOV 1XQ distance=29' 21182+3035 NOV 1XY distance=29' 21182+3035 NOV 1XZ distance=29' 21161+2951 BWL 56BF distance=29' 21162+2948 TDT2872 distance=33' 21153+3051 GRV 439 distance=34' 21180+3049 COU1183 distance=37' 21185+3037 FYM 538BC distance=37' 21185+3037 FYM 538AB distance=37' 21145+3052 TDT2850 distance=40' 21129+3014 BAS 7Aa,Ab distance=45' 21129+3014 BUP 227AB distance=45' 21129+3014 BUP 227AC distance=45' 21129+3014 BUP 227AD distance=45' 21129+3014 FYM 141AE distance=45' 21129+3014 FYM 141AF distance=45' 21129+3014 FYM 141AG distance=45' 21142+3058 COU 834 distance=47' 21162+2928 J 1784 distance=53' 21155+3114 TDT2862 distance=55' 21133+3100 BRT 286 distance=56' 21129+2944 MLB 667 distance=59' 21117+3038 J 1235 distance=62' 21115+3033 ALD 5 distance=64' 21150+2917 GRV 438 distance=66' 21176+2915 COU 835AB distance=68' 21176+2915 COU 835AC distance=68' 21212+3044 TDT2914 distance=68' 21118+2943 HAU 27 distance=70' 21205+3107 J 3135 distance=71' 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 21166+3018 J 3131 AB 253 24.6 1
Show 21166+3018 J 3131 BC 229 5.5 1
Show 21167+3001 MLB1091 170 10.4 20
Show 21169+3001 MLB 538 AB 310 3.2 21
Show 21169+3001 DAM 227 AC 26 8.2 21
Show 21155+3042 KPP 488 119 3.6 25
Show 21156+2957 TDT2864 100 0.9 26
Show 21167+2955 TDT2878 10 0.6 26
Show 21149+3037 BRT 287 197 6.2 27
Show 21182+3035 POP 228 NK 64 6.5 28
Show 21182+3035 HO 154 AB 211 3.6 29
Show 21182+3035 POP 228 AC 139 9.0 29
Show 21182+3035 NOV 1 AD 162 21.4 29
Show 21182+3035 POP 228 AN 262 64.2 29
Show 21182+3035 NOV 1 AX 142 186.7 29
Show 21161+2951 LDS1053 AB 259 26.0 29
Show 21161+2951 BWL 56 Aa,Ab 163 0.1 29
Show 21161+2951 BWL 56 AC 77 3.4 29
Show 21161+2951 BWL 56 AD 200 2.6 29
Show 21161+2951 BWL 56 AE 226 4.4 29
Show 21182+3035 NOV 1 XL 89 32.2 29
Show 21182+3035 NOV 1 XQ 134 29.2 29
Show 21182+3035 NOV 1 XY 206 14.1 29
Show 21182+3035 NOV 1 XZ 57 18.3 29
Show 21161+2951 BWL 56 BF 233 3.5 29
Show 21162+2948 TDT2872 163 0.7 33
Show 21153+3051 GRV 439 127 21.5 34
Show 21180+3049 COU1183 23 0.2 37
Show 21185+3037 FYM 538 BC 218 5.7 37
Show 21185+3037 FYM 538 AB 192 7.0 37
Show 21145+3052 TDT2850 173 2.7 40
Show 21129+3014 BAS 7 Aa,Ab 246 0.0 45
Show 21129+3014 BUP 227 AB 205 65.2 45
Show 21129+3014 BUP 227 AC 300 91.5 45
Show 21129+3014 BUP 227 AD 63 105.3 45
Show 21129+3014 FYM 141 AE 76 42.8 45
Show 21129+3014 FYM 141 AF 267 63.6 45
Show 21129+3014 FYM 141 AG 97 70.7 45
Show 21142+3058 COU 834 77 7.9 47
Show 21162+2928 J 1784 338 5.0 53
Show 21155+3114 TDT2862 336 0.2 55
Show 21133+3100 BRT 286 251 6.6 56
Show 21129+2944 MLB 667 30 2.4 59
Show 21117+3038 J 1235 185 2.8 62
Show 21115+3033 ALD 5 153 3.7 64
Show 21150+2917 GRV 438 8 15.2 66
Show 21176+2915 COU 835 AB 238 0.4 68
Show 21176+2915 COU 835 AC 247 12.3 68
Show 21212+3044 TDT2914 17 2.0 68
Show 21118+2943 HAU 27 297 50.0 70
Show 21205+3107 J 3135 98 4.0 71

 
 
WDS 21166+3018 : COMPONENTS
 
 
  A B
B pa=252.8°
sep=25.74"
 
C pa=248.7°
sep=30.83"
pa=229.1°
sep=5.47"
 
 
21166+3018 A
 
 
Coord arcsec 2000 211619.01+302027.8 Mag 11.8 PmRA 2.00 PmDE -4.0
 
 
21166+3018 B
 
 
Coord arcsec 2000 211617.11+302020.2 Coord calc 211617.11+302020.2 Mag 13 PmRA 12.00
PmDE 3.0 Delta magnitude 1.2
 
 
21166+3018 C
 
 
Coord arcsec 2000 211616.79+302016.6 Mag 14.6 Delta magnitude 2.8 Coordinate calculated yes