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Computed Lists
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Doubles in session


Current system
20177+2025
J 2308 AB


Nearby doubles
20' : 20173+2009
J 3071

22' : 20163+2033
HDS2888

25' : 20183+2002
HJ 912AB

29' : 20187+2001
HDS2901

32' : 20193+2047
TDT2166AB

38' : 20190+2058
KPP1850

39' : 20154+2045
BRT2469

39' : 20195+1954
J 836

41' : 20156+1958
ROE 101AB

42' : 20178+1944
J 3072

56' : 20190+2117
GRV 329

57' : 20138+2021
HJ 2941

58' : 20209+1948
HJ 2954AB

59' : 20190+2121
J 3074

59' : 20136+2021
BU 1484

60' : 20153+1937
UC 249

63' : 20162+1927
FMR 158

63' : 20167+1925
GCB 52

65' : 20167+1923
J 3068

67' : 20196+1925
BRT2525

68' : 20153+2120
J 3067

68' : 20190+2131
J 554

69' : 20224+2006
BUP9009

69' : 20178+1917
TDT2146

71' : 20166+2134
BRT2524

71' : 20227+2023
J 3080



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.
 
 
WDS 20177+2025 : COMPONENTS
 
 
  A Ab B C D
Ab pa=109.6°
sep=0.40"
 
B pa=282.5°
sep=36.86"
pa=282.6°
sep=37.26"
 
C pa=284.7°
sep=39.98"
pa=284.7°
sep=40.38"
pa=308.4°
sep=3.44"
 
D pa=170.9°
sep=33.75"
pa=171.5°
sep=33.56"
pa=135.0°
sep=58.44"
pa=134.6°
sep=61.86"
 
E pa=267.2°
sep=27.10"
pa=267.5°
sep=27.47"
pa=136.2°
sep=12.89"
pa=134.6°
sep=16.30"
pa=314.6°
sep=45.55"
 
 
20177+2025 A
 
 
Coord arcsec 2000 201744.53+202523.0 Mag 8.3 Spectral class K2 (yellow-orange) PmRA 9.00
PmDE 3.0 SAO 88476 Tycho2 1639-00122-1 HD 193079
DM BD+19 4355
Tycho2
Tycho2 1639-00122-1 Pflag RAmdeg 304.43556068 DEmdeg 20.42307421
PmRA 7.2 PmDE -1.7 E RAmdeg 7 E DEmdeg 8
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.05 EpDEm 1990.74
Num 9 Q RAmdeg 0.6 Q DEmdeg 1.0 Q pmRA 0.5
Q pmDE 1.0 BTmag 9.320 E BTmag 0.019 VTmag 8.299
E VTmag 0.012 Prox 999 TYC T HIP
CCDM RAdeg 304.43554306 DEdeg 20.42307833 EpRA 1990 1.73
EpDE 1990 1.65 E RAdeg 7.1 E DEdeg 7.7 Posflg
Corr 0.3
SAO
SAO 88476 DelFlag RA1950 PmRA1950 0.001
DE1950 PmDE1950 -0.013 Vmag 8 SpType K2
Double code Source 28 CatNum 8083 DM BD+19 4355
DMcomp BDsup HD 193079 M HD 0
GC RA1950rad 5.3037086 DE1950rad 0.35371883 PmRA2000 0.0011
PmDE2000 -0.015
 
 
20177+2025 Ab
 
 
Coord arcsec 2000 201744.56+202522.9 Mag 9.8 Calc delta mag 1.3 Calc coord yes
 
 
20177+2025 B
 
 
Coord arcsec 2000 201741.97+202531.0 Coord calc 201741.97+202531.0 Mag 15.5 PmRA 2.00
PmDE -15.0 Calc delta mag 7
 
 
20177+2025 C
 
 
Coord arcsec 2000 201741.78+202533.1 Mag 14 Calc delta mag 5.5 Calc coord yes
 
 
20177+2025 D
 
 
Coord arcsec 2000 201744.91+202449.7 Mag 13.5 Calc delta mag 5 Calc coord yes
 
 
20177+2025 E
 
 
Coord arcsec 2000 201742.60+202521.7 Mag 14.2 Calc delta mag 5.7 Calc coord yes