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Current system
21400+3919
ALI 978


Nearby doubles
13' : 21399+3931
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TDT3080

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BU 274

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GRV 488

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MLB 787

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ALI 976

29' : 21377+3911
ALI 975

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MLB 786

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KPP4241

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GRV 485

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ALI 977

36' : 21403+3843
ALI 979

37' : 21429+3904
GRV 496

39' : 21421+3848
ALI 980

41' : 21366+3928
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TDT3063

54' : 21445+3933
A 1447

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ALI1163

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MLB 28

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GRV 499

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LEP 101

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SEI1532

64' : 21399+3813
ES 2066



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

21400+3919 ALI 978

 
 
21h 40m 01.71s +39° 18' 47.7" P.A. 14.00 sep 13.3 mag 11.46,13.59
 
 
Coord 2000 21400+3919 Discov num ALI 978 Comp Coord arcsec 2000 21 40 01.71 +39 18 47.7
Date first 1928 Date last 2015 Obs 9
Pa first 10 Pa last 13.6 P.A. Now (θ) 13.6°
Sep first 14.4 Sep last 13.347 Sep. Now (ρ) 13.347"
Mag pri 11.46 Mag sec 13.59 delta mag (ΔM) 2.13 Spectral class
Pri motion ra +004 Sec motion ra +002
Pri motion dec +005 Sec motion dec -011
Notes
rPM=1.442
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1953911636634761984
 
 
WDS 21400+3919 ALI 978 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Ali1949 Pa - Ali, A. 1949AJ.....54..199A
Ali1949 AJ 54, 199, 1949
Ali1950 Pa - Ali, A. 1950AJ.....55..209A
Ali1950 AJ 55, 208, 1950
Ali1952 Pa - Ali, A. 1952AJ.....57..146A
Ali1952 AJ 57, 146, 1952
Ali1955 Pa - Ali, A. .
Ali1955 Pub. Nizamiah Obs. 13, Pt. 2, 1955
Ali9999 Pa - Ali, A. ...................
Ali9999 +Po Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21400+3919 ALI 978 1999 3 12 13.6 11.60 13.00 D 214001.71+391847.7
21400+3919 ALI 978 2002 4 12 13.6 11.60 13.00 D 214001.71+391847.7
21400+3919 ALI 978 2010 5 15 13.7 11.46 13.59 214001.71+391847.7
21400+3919 ALI 978 2015 6 14 13.3 11.46 13.59 214001.71+391847.7

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

 
 
WDS 21400+3919 ALI 978 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21400+3919 ALI 978 : MEASURES
 
 
No records found.

 
 
WDS 21400+3919 : VIRTUAL EYEPIECE
 
 

21400+3919 ALI 978A mag 11.46 21400+3919 ALI 978B sep 13.2 P.A. 10.60 mag 13.59 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21400+3919 : ALADIN DSS IMAGE @ 21h 40m 01.71s +39° 18' 47.7"
 
 
 
 
WDS 21400+3919 ALI 978 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21400+3919 ALI 978 distance=0' 21399+3931 A 1445AB distance=13' 21399+3931 HJ 1675AC distance=13' 21397+3934 TDT3090 distance=16' 21387+3924 TDT3080 distance=16' 21413+3928 BU 274 distance=18' 21383+3917 GRV 488 distance=20' 21403+3858 MLB 787 distance=21' 21399+3941 A 1446 distance=22' 21383+3906 ALI 976 distance=24' 21377+3911 ALI 975 distance=29' 21385+3942 MLB 786 distance=30' 21393+3948 KPP4241 distance=31' 21371+3915 GRV 485 distance=34' 21387+3848 ALI 977 distance=35' 21403+3843 ALI 979 distance=36' 21429+3904 GRV 496 distance=37' 21421+3848 ALI 980 distance=39' 21366+3928 VYS 10 distance=41' 21371+3942 TDT3063 distance=41' 21445+3933 A 1447 distance=54' 21353+3935 ALI1163 distance=57' 21386+3822 TDT3078 distance=60' 21363+4002 MLB 28 distance=62' 21450+3942 GRV 499 distance=63' 21348+3903 LEP 101 distance=64' 21415+3817 SEI1532 distance=64' 21399+3813 ES 2066 distance=64' 21417+4022 TDT3111 distance=66' 21453+3853 TDT3139 distance=67' 21363+4012 AG 273 distance=69' 21458+3945 MLB 902 distance=69' 21408+4027 TDT3102 distance=70' 21352+3839 ES 2713 distance=70' 21436+3822 ES 2522 distance=70' 21354+3837 ES 1995 distance=70' 21351+4000 MLB 901 distance=71' 21431+4021 TDT3121 distance=72' 21454+3955 SEI1534 distance=72' 21459+3943 SEI1535 distance=73' 21432+3815 DAM 232 distance=74' 21434+3817 KUI 109Aa,Ab distance=74' 21434+3817 S 799AB distance=74' 21434+3817 S 799AC distance=74' 21384+3808 TDT3073 distance=74' 21434+3817 S 799BD distance=74' 21408+3806 TDS1140 distance=74' 21369+4025 DRS 20 distance=75' 21374+3810 GRV 487 distance=76' 21336+3905 COU1975AB distance=76' 21336+3905 COU1975Aa,Ab distance=76' 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 21400+3919 ALI 978 14 13.3
Show 21399+3931 A 1445 AB 283 1.5 13
Show 21399+3931 HJ 1675 AC 264 37.9 13
Show 21397+3934 TDT3090 171 0.7 16
Show 21387+3924 TDT3080 245 2.7 16
Show 21413+3928 BU 274 180 3.7 18
Show 21383+3917 GRV 488 19 59.8 20
Show 21403+3858 MLB 787 351 5.4 21
Show 21399+3941 A 1446 40 1.3 22
Show 21383+3906 ALI 976 173 12.8 24
Show 21377+3911 ALI 975 153 12.8 29
Show 21385+3942 MLB 786 209 5.3 30
Show 21393+3948 KPP4241 95 4.0 31
Show 21371+3915 GRV 485 74 19.6 34
Show 21387+3848 ALI 977 221 11.6 35
Show 21403+3843 ALI 979 5 9.8 36
Show 21429+3904 GRV 496 72 29.9 37
Show 21421+3848 ALI 980 139 8.9 39
Show 21366+3928 VYS 10 261 1.0 41
Show 21371+3942 TDT3063 159 0.6 41
Show 21445+3933 A 1447 243 0.4 54
Show 21353+3935 ALI1163 342 7.1 57
Show 21386+3822 TDT3078 157 0.7 60
Show 21363+4002 MLB 28 256 4.3 62
Show 21450+3942 GRV 499 170 67.4 63
Show 21348+3903 LEP 101 168 19.9 64
Show 21415+3817 SEI1532 139 5.1 64
Show 21399+3813 ES 2066 224 5.4 64
Show 21417+4022 TDT3111 296 2.7 66
Show 21453+3853 TDT3139 65 0.5 67
Show 21363+4012 AG 273 3 8.9 69
Show 21458+3945 MLB 902 327 5.6 69
Show 21408+4027 TDT3102 25 1.4 70
Show 21352+3839 ES 2713 98 17.7 70
Show 21436+3822 ES 2522 101 4.0 70
Show 21354+3837 ES 1995 39 2.3 70
Show 21351+4000 MLB 901 233 5.8 71
Show 21431+4021 TDT3121 157 1.7 72
Show 21454+3955 SEI1534 189 27.8 72
Show 21459+3943 SEI1535 229 8.5 73
Show 21432+3815 DAM 232 299 8.3 74
Show 21434+3817 KUI 109 Aa,Ab 142 1.9 74
Show 21434+3817 S 799 AB 60 149.5 74
Show 21434+3817 S 799 AC 318 135.3 74
Show 21384+3808 TDT3073 334 1.1 74
Show 21434+3817 S 799 BD 254 34.0 74
Show 21408+3806 TDS1140 191 1.0 74
Show 21369+4025 DRS 20 58 7.0 75
Show 21374+3810 GRV 487 201 74.8 76
Show 21336+3905 COU1975 AB 359 21.4 76
Show 21336+3905 COU1975 Aa,Ab 331 0.3 76

 
 
WDS 21400+3919 : COMPONENTS
 
 
  A
B pa=10.6°
sep=13.20"
 
 
21400+3919 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 214001.71+391847.7 Mag 11.46 PmRA 4.00
PmDE 5.0
 
 
21400+3919 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 214001.92+391900.7 Mag 13.59 PmRA 2.00
PmDE -11.0 Calc delta mag 2.13 Calc coord yes