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Current system
21377+3911
ALI 975


Nearby doubles
8' : 21371+3915
GRV 485

9' : 21383+3906
ALI 976

11' : 21383+3917
GRV 488

18' : 21387+3924
TDT3080

21' : 21366+3928
VYS 10

27' : 21387+3848
ALI 977

29' : 21400+3919
ALI 978

32' : 21371+3942
TDT3063

33' : 21397+3934
TDT3090

33' : 21403+3858
MLB 787

33' : 21399+3931
A 1445AB

34' : 21385+3942
MLB 786

35' : 21348+3903
LEP 101

37' : 21353+3935
ALI1163

40' : 21399+3941
A 1446

42' : 21403+3843
ALI 979

42' : 21393+3948
KPP4241

44' : 21352+3839
ES 2713

45' : 21354+3837
ES 1995

47' : 21413+3928
BU 274

47' : 21336+3905
COU1975AB

51' : 21386+3822
TDT3078

51' : 21340+3844
COU1976

52' : 21348+3832
DEA 61

54' : 21363+4002
MLB 28

57' : 21421+3848
ALI 980



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

21377+3911 ALI 975

 
 
21h 37m 38.66s +39° 10' 56.1" P.A. 153.00 sep 12.8 mag 11.40,12.23
 
 
Coord 2000 21377+3911 Discov num ALI 975 Comp Coord arcsec 2000 21 37 38.66 +39 10 56.1
Date first 1929 Date last 2015 Obs 9
Pa first 154 Pa last 152.5 P.A. Now (θ) 152.5°
Sep first 13.4 Sep last 12.83 Sep. Now (ρ) 12.83"
Mag pri 11.40 Mag sec 12.23 delta mag (ΔM) 0.83 Spectral class
Pri motion ra -010 Sec motion ra +002
Pri motion dec -004 Sec motion dec +000
Notes
rPM=1.174
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1953933356290006912
 
 
WDS 21377+3911 ALI 975 : 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Ali9999 +Po Unpublished, manuscript or reference not found.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
21377+3911 ALI 975 1929 1 154 13.4 12.08 12.10 213742.84+391149.8
21377+3911 ALI 975 2002 3 153 12.9 11.40 12.23 213738.66+391056.1
21377+3911 ALI 975 2013 4 150 12.8 11.40 12.23 213738.66+391056.1
21377+3911 ALI 975 2015 5 153 12.8 11.40 12.23 213738.66+391056.1

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

 
 
WDS 21377+3911 ALI 975 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21377+3911 ALI 975 : MEASURES
 
 
No records found.

 
 
WDS 21377+3911 : VIRTUAL EYEPIECE
 
 

21377+3911 ALI 975A mag 11.4 21377+3911 ALI 975B sep 12.3 P.A. 158.00 mag 12.23 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21377+3911 : ALADIN DSS IMAGE @ 21h 37m 38.66s +39° 10' 56.1"
 
 
 
 
WDS 21377+3911 ALI 975 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21377+3911 ALI 975 distance=0' 21371+3915 GRV 485 distance=8' 21383+3906 ALI 976 distance=9' 21383+3917 GRV 488 distance=11' 21387+3924 TDT3080 distance=18' 21366+3928 VYS 10 distance=21' 21387+3848 ALI 977 distance=27' 21400+3919 ALI 978 distance=29' 21371+3942 TDT3063 distance=32' 21397+3934 TDT3090 distance=33' 21403+3858 MLB 787 distance=33' 21399+3931 A 1445AB distance=33' 21399+3931 HJ 1675AC distance=33' 21385+3942 MLB 786 distance=34' 21348+3903 LEP 101 distance=35' 21353+3935 ALI1163 distance=37' 21399+3941 A 1446 distance=40' 21403+3843 ALI 979 distance=42' 21393+3948 KPP4241 distance=42' 21352+3839 ES 2713 distance=44' 21354+3837 ES 1995 distance=45' 21413+3928 BU 274 distance=47' 21336+3905 COU1975AB distance=47' 21336+3905 COU1975Aa,Ab distance=47' 21386+3822 TDT3078 distance=51' 21340+3844 COU1976 distance=51' 21348+3832 DEA 61 distance=52' 21363+4002 MLB 28 distance=54' 21421+3848 ALI 980 distance=57' 21328+3904 A 1443 distance=57' 21336+3943 TDT3031 distance=57' 21328+3901 MLB 989 distance=58' 21333+3940 MLB 900 distance=58' 21351+4000 MLB 901 distance=58' 21331+3938 MLB 899AB distance=59' 21331+3938 MLB 899AC distance=59' 21325+3902 ES 260 distance=61' 21374+3810 GRV 487 distance=61' 21324+3903 MLB 988 distance=62' 21329+3843 KPP4236 distance=62' 21429+3904 GRV 496 distance=62' 21363+4012 AG 273 distance=63' 21399+3813 ES 2066 distance=63' 21335+3951 TDT3030 distance=64' 21384+3808 TDT3073 distance=64' 21324+3849 MLB1029AB distance=65' 21324+3849 DAM 326AC distance=65' 21324+3849 MLB1029AD distance=65' 21322+3850 ES 259 distance=67' 21327+3948 HO 604 distance=69' 21323+3839 ALI 974 distance=70' 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 21377+3911 ALI 975 153 12.8
Show 21371+3915 GRV 485 74 19.6 8
Show 21383+3906 ALI 976 173 12.8 9
Show 21383+3917 GRV 488 19 59.8 11
Show 21387+3924 TDT3080 245 2.7 18
Show 21366+3928 VYS 10 261 1.0 21
Show 21387+3848 ALI 977 221 11.6 27
Show 21400+3919 ALI 978 14 13.3 29
Show 21371+3942 TDT3063 159 0.6 32
Show 21397+3934 TDT3090 171 0.7 33
Show 21403+3858 MLB 787 351 5.4 33
Show 21399+3931 A 1445 AB 283 1.5 33
Show 21399+3931 HJ 1675 AC 264 37.9 33
Show 21385+3942 MLB 786 209 5.3 34
Show 21348+3903 LEP 101 168 19.9 35
Show 21353+3935 ALI1163 342 7.1 37
Show 21399+3941 A 1446 40 1.3 40
Show 21403+3843 ALI 979 5 9.8 42
Show 21393+3948 KPP4241 95 4.0 42
Show 21352+3839 ES 2713 98 17.7 44
Show 21354+3837 ES 1995 39 2.3 45
Show 21413+3928 BU 274 180 3.7 47
Show 21336+3905 COU1975 AB 359 21.4 47
Show 21336+3905 COU1975 Aa,Ab 331 0.3 47
Show 21386+3822 TDT3078 157 0.7 51
Show 21340+3844 COU1976 30 0.4 51
Show 21348+3832 DEA 61 195 66.9 52
Show 21363+4002 MLB 28 256 4.3 54
Show 21421+3848 ALI 980 139 8.9 57
Show 21328+3904 A 1443 249 0.2 57
Show 21336+3943 TDT3031 296 0.6 57
Show 21328+3901 MLB 989 162 3.2 58
Show 21333+3940 MLB 900 279 6.8 58
Show 21351+4000 MLB 901 233 5.8 58
Show 21331+3938 MLB 899 AB 51 3.2 59
Show 21331+3938 MLB 899 AC 142 27.9 59
Show 21325+3902 ES 260 281 6.1 61
Show 21374+3810 GRV 487 201 74.8 61
Show 21324+3903 MLB 988 109 2.2 62
Show 21329+3843 KPP4236 205 1.8 62
Show 21429+3904 GRV 496 72 29.9 62
Show 21363+4012 AG 273 3 8.9 63
Show 21399+3813 ES 2066 224 5.4 63
Show 21335+3951 TDT3030 176 0.8 64
Show 21384+3808 TDT3073 334 1.1 64
Show 21324+3849 MLB1029 AB 204 5.9 65
Show 21324+3849 DAM 326 AC 315 13.4 65
Show 21324+3849 MLB1029 AD 290 29.1 65
Show 21322+3850 ES 259 319 3.9 67
Show 21327+3948 HO 604 316 5.3 69
Show 21323+3839 ALI 974 210 10.6 70

 
 
WDS 21377+3911 : COMPONENTS
 
 
  A
B pa=158.0°
sep=12.27"
 
 
21377+3911 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 213738.66+391056.1 Mag 11.4 PmRA -10.00
PmDE -4.0
 
 
21377+3911 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 213739.05+391044.7 Mag 12.23 PmRA 2.00
PmDE 0.0 Calc delta mag 0.83 Calc coord yes