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Current system
18166-3717
WFC 284


Nearby doubles
9' : 18172-3719
RST3168

16' : 18160-3703
B 1355

29' : 18179-3654
B 2441

33' : 18146-3654
B 935

35' : 18176-3646
BU 760AB

35' : 18142-3737
B 934AB

41' : 18142-3747
RST3163

42' : 18197-3700
RST3172

45' : 18128-3711
B 930

46' : 18156-3633
RST3165

51' : 18130-3651
B 931

53' : 18131-3750
B 932

56' : 18121-3703
SEE 347

57' : 18153-3623
B 1354AB

59' : 18207-3647
B 1356

59' : 18215-3715
B 2445

61' : 18165-3817
RST2041

67' : 18127-3629
B 928

82' : 18114-3812
RSS 477

88' : 18231-3758
RST4009

88' : 18114-3615
RST3160

89' : 18202-3601
BRT1769

90' : 18161-3847
RSS 481

102' : 18180-3538
B 425AB

102' : 18247-3746
B 1358

105' : 18251-3738
B 1360



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.

18166-3717 WFC 284

 
 
18h 16m 32.53s -37° 17' 19.6" P.A. 118.00 sep 10.7 mag 10.61,12.08
 
 
Coord 2000 18166-3717 Discov num WFC 284 Comp Coord arcsec 2000 18 16 32.53 -37 17 19.6
Date first 1912 Date last 2015 Obs 7
Pa first 129 Pa last 118.1 P.A. Now (θ) 118.1°
Sep first 10.3 Sep last 10.668 Sep. Now (ρ) 10.668"
Mag pri 10.61 Mag sec 12.08 delta mag (ΔM) 1.47 Spectral class
Pri motion ra -002 Sec motion ra +009
Pri motion dec -021 Sec motion dec -014
Notes
rPM=0.618
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Corona Austrina Tycho2 7404-04884-1 Gaia DR2 6727812591236910208
 
 
WDS 18166-3717 WFC 284 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
WFC (Washington Fundamental Cat. - astrographs)
WFC1939 Pa - Schlesinger, F. & Barney, I. 1939TOYal..11....1S
WFC1939 Trans. Astron. Obs. Yale Univ., 11, 1, 1939 (-10 to -14 deg zones)
WFC1940a Pa - Schlesinger, F. & Barney, I. 1940TOYal..12a...1S
WFC1940a Trans. Astron. Obs. Yale Univ., 12a, 1, 1940 (-14 to -18 deg zones)
WFC1940b Pa - Schlesinger, F. & Barney, I. 1940TOYal..12b...1S
WFC1940b Trans. Astron. Obs. Yale Univ., 12b, 1, 1940 (-18 to -20 deg zones)
WFC1943a Pa - Schlesinger, F. & Barney, I. 1943TOYal..13a...1S
WFC1943a Trans. Astron. Obs. Yale Univ., 13a, 1, 1943 (-20 to -22 deg zones)
WFC1943b Pa - Schlesinger, F. & Barney, I. 1943TOYal..13b...1S
WFC1943b Trans. Astron. Obs. Yale Univ., 13b, 1, 1943 (-27 to -30 deg zones)
WFC1943c Pa - Schlesinger, F. & Barney, I. 1943TOYal..14....1S
WFC1943c Trans. Astron. Obs. Yale Univ., 14, 1, 1943 (-22 to -27 deg zones)
WFC1945a Pa - Barney, I. 1945TOYal..16....1B
WFC1945a Trans. Astron. Obs. Yale Univ., 16, 1, 1945 (-06 to -10 deg zones)
WFC1945b Pa - Barney, I. 1945TOYal..17....1B
WFC1945b Trans. Astron. Obs. Yale Univ., 17, 1, 1945 (-02 to -06 deg zones)
WFC1947 Pa - Barney, I. 1947TOYal..18....1B
WFC1947 Trans. Astron. Obs. Yale Univ., 18, 1, 1947 (+15 to +20 deg zones)
WFC1948 Pa - Barney, I. 1948TOYal..19....1B
WFC1948 Trans. Astron. Obs. Yale Univ., 19, 1, 1948 (+09 to +15 deg zones)
WFC1949 Pa - Barney, I. 1949TOYal..20....1B
WFC1949 Trans. Astron. Obs. Yale Univ., 20, 1, 1949 (+01 to +05 deg zones)
WFC1950a Pa - Baillaud, J. .
WFC1950a Paris Obs., 1950 (+17 to +25 deg zones)
WFC1950b Pa - Barney, I. 1950TOYal..21....1B
WFC1950b Trans. Astron. Obs. Yale Univ., 21, 1, 1950 (+01 to -02 deg zones)
WFC1950c Pa - Barney, I. 1950TOYal..22A...1B
WFC1950c Trans. Astron. Obs. Yale Univ., 22, 1, 1950 (+05 to +09 deg zones)
WFC1953 Pa - Barney, I. 1953TOYal..24....1B
WFC1953 Trans. Astron. Obs. Yale Univ., 24, 1, 1954 (+25 to +30 deg zones)
WFC1954a Pa - Jackson, J. & Stoy R.H. 1954AnCap..17.....J
WFC1954a Ann. Cape Obs. London 17, 1954
WFC1954a Cape Photographic Catalogue for 1950.0., Vol. 17: Zone -30 deg to -35 deg
WFC1954b Pa - Jackson, J. & Stoy R.H. 1954AnCap..18.....J
WFC1954b Ann. Cape Obs. London 18, 1954
WFC1954b Cape Photographic Catalogue for 1950.0., Vol. 18: Zone -35 deg to -40 deg
WFC1954c Pa - Barney, I. 1954TOYal..25....1B
WFC1954c Trans. Astron. Obs. Yale Univ., 25, 1, 1954 (+20 to +25 deg zones)
WFC1954d Pa - Barney, I., Hoffleit, D., & Jones, R.B. 1954TOYal..26....1B
WFC1954d Trans. Astron. Obs. Yale Univ., 26, 1, 1954 (+85 to +90 deg zones)
WFC1955 Pa - Jackson, J. & Stoy R.H. 1955AnCap..19.....J
WFC1955 Ann. Cape Obs. London 19, 1955
WFC1955 Cape Photographic Catalogue for 1950.0., Vol. 19: Zone -52 deg to -56 deg
WFC1958a Pa - Schorr, R. & Kohlschuetter, A. .
WFC1958a AGK2 Cat. North of -2.5 deg, Vol. 1-15, 1958 (Bergedorf)
WFC1958b Pa - Schorr, R. & Kohlschuetter, A. .
WFC1958b AGK2 Cat. North of -2.5 deg, Vol. 1-15, 1958 (Bonn)
WFC1958c Pa - Jackson, J. & Stoy R.H. 1958AnCap..20..155J
WFC1958c Ann. Cape Obs. London, 20, 155, 1958
WFC1958c Cape Photographic Catalogue for 1950.0. Vol. 20: Zones -56 to -60 deg
WFC1958d Pa - Jackson, J. & Stoy R.H. 1958AnCap..20..155J
WFC1958d Ann. Cape Obs., London, 20, 155, 1958
WFC1958d Cape Photographic Catalogue for 1950.0. Vol. 20: Zones -60 to -64 deg
WFC1959a Pa - Barney, I., Hoffleit, D., & Jones, R.B. 1959TOYal..26....1B
WFC1959a Trans. Astron. Obs. Yale Univ., 26, 1, 1959 (+50 to +55 deg zones)
WFC1959b Pa - Barney, I., Hoffleit, D., & Jones, R.B. 1959TOYal..27....1B
WFC1959b Trans. Astron. Obs. Yale Univ., 27, 1, 1959 (+55 to +60 deg zones)
WFC1966a Pa - Stoy R.H. 1966AnCap..21....0S
WFC1966a Ann. Cape Obs. London, 21, 1966
WFC1966a Cape Photographic Catalogue for 1950.0. Vol. 21: Zones -64 to -68 deg
WFC1966b Pa - Stoy R.H. 1966AnCap..21....0S
WFC1966b Ann. Cape Obs. London, 21, 1966
WFC1966b Cape Photographic Catalogue for 1950.0. Vol. 21: Zones -68 to -72 deg
WFC1966c Pa - Stoy R.H. 1966AnCap..21....0S
WFC1966c Ann. Cape Obs. London, 21, 1966
WFC1966c Cape Photographic Catalogue for 1950.0. Vol. 21: Zones -72 to -76 deg
WFC1966d Pa - Stoy R.H. 1966AnCap..21....0S
WFC1966d Ann. Cape Obs. London, 21, 1966
WFC1966d Cape Photographic Catalogue for 1950.0. Vol. 21: Zones -76 to -80 deg
WFC1967 Pa - Hoffleit, D. 1967TOYal..28....1H
WFC1967 Trans. Astron. Obs. Yale Univ., 28, 1, 1967 (-30 to -35 deg zones)
WFC1968a Pa - Stoy R.H. 1968AnCap..22..125S
WFC1968a Ann. Cape Obs., London, 22, 125, 1968
WFC1968a Cape Photographic Catalogue for 1950.0. Vol. 22: Zones -80 to -89 deg
WFC1968b Pa - Hoffleit, D. 1968TOYal..29....1H
WFC1968b Trans. Astron. Obs. Yale Univ., 29, 1, 1968 (-35 to -40 deg zones)
WFC1970 Pa - Hoffleit, D., Eckert, D., Lu, P., & Paranya, K. 1970TOYal..30....1H
WFC1970 Trans. Astron. Obs. Yale Univ., 30, 1, 1970 (-40 to -50 deg zones)
WFC1971 Pa - Lu, P.K. 1971TOYal..31....1L
WFC1971 Trans. Astron. Obs. Yale Univ., 31, 1, 1971 (-70 to -90 deg zones)
WFC1975 Pa - Dieckvoss, W. .
WFC1975 AGK3 Cat. North of -2.5 deg dec, Vol. 1-8, 1975
WFC1983a Pa - Eichhorn, H., Googe, W.D., Lukac, C.F., & Murphy, J.K. 1983AJ.....88..546E
WFC1983a AJ 88, 546, 1983 (Sydney Obs. -48 to -54 deg zones)
WFC1983b Pa - King, D.S. & Lomb, N.R. 1983RSNSW.116...53K
WFC1983b Journal & Proc., Royal Soc. New South Wales 116, 53-70, 1983
WFC1983b (Sydney Obs. -51 to -63.5 deg zones)
WFC1983c Pa - Fallon, F.W. & Hoffleit, D. 1983TrAOY..32....1F
WFC1983c Trans. Astron. Obs. Yale Univ., 32, 1, 1983 (-60 to -70 deg zones)
WFC1992 Pa - Zacharias, N., de Vegt, C., Nicholson, W., & Penston, M.J. 1992A&A...254..397Z
WFC1992 A&A 254, 397, 1992 (CPC2)
WFC1994 Pa - Bystrov, N.F., Polojentsev, D.D, Potter, H.I., Yagudin, L.I., & Zallez, R.F. 1994BICDS..44....3B
WFC1994 Bull. Inf. CDS 44, 3, 1994 (FOKAT)
WFC1998 Pa j Urban, S.E., Corbin, T.E., Wycoff, G.L., Martin, J.C., Jackson, E.S., 1998AJ....115.1212U
WFC1998 Zacharias, M.I., & Hall, D.M.
WFC1998 AJ 115, 1212, 1998 (Astrographic Cat. 2000)
WFC1999 Pa - Zacharias, N. & Zacharias, M.I. 1999AJ....118.2503Z
WFC1999 AJ 118, 2503, 1999
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18166-3717 WFC 284 1999 5 119 10.7 10.61 12.08 D 181632.53-371719.6
18166-3717 WFC 284 2010 7 118 10.7 10.61 12.08 181632.53-371719.6
18166-3717 WFC 284 2015 7 118 10.7 10.61 12.08 181632.53-371719.6

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

 
 
WDS 18166-3717 WFC 284 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18166-3717 WFC 284 : MEASURES
 
 
No records found.

 
 
WDS 18166-3717 : VIRTUAL EYEPIECE
 
 

18166-3717 WFC 284A mag 10.61 18166-3717 WFC 284B sep 9.0 P.A. 123.90 mag 12.08 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18166-3717 : ALADIN DSS IMAGE @ 18h 16m 32.53s -37° 17' 19.6"
 
 
 
 
WDS 18166-3717 WFC 284 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18166-3717 WFC 284 distance=0' 18172-3719 RST3168 distance=9' 18160-3703 B 1355 distance=16' 18179-3654 B 2441 distance=29' 18146-3654 B 935 distance=33' 18176-3646 BU 760AB distance=35' 18176-3646 BU 760AC distance=35' 18176-3646 BU 760AD distance=35' 18142-3737 B 934BC distance=35' 18142-3737 B 934AB distance=35' 18142-3747 RST3163 distance=41' 18197-3700 RST3172 distance=42' 18128-3711 B 930 distance=45' 18156-3633 RST3165 distance=46' 18130-3651 B 931 distance=51' 18131-3750 B 932 distance=53' 18121-3703 SEE 347 distance=56' 18153-3623 B 1354AC distance=57' 18153-3623 B 1354AB distance=57' 18207-3647 B 1356 distance=59' 18215-3715 B 2445 distance=59' 18165-3817 RST2041 distance=61' 18127-3629 B 928 distance=67' 18114-3812 RSS 477 distance=82' 18231-3758 RST4009 distance=88' 18114-3615 RST3160 distance=88' 18202-3601 BRT1769 distance=89' 18161-3847 RSS 481 distance=90' 18180-3538 B 425AB distance=102' 18180-3538 B 425AC distance=102' 18247-3746 B 1358 distance=102' 18251-3738 B 1360 distance=105' 18097-3824 TVB 300 distance=105' 18248-3642 POL 6 distance=105' 18155-3532 BRT1763 distance=106' 18253-3701 BRT1776 distance=106' 18187-3534 LDS 636 distance=107' 18090-3617 RST3155Aa,Ab distance=109' 18090-3617 SHY 738AB distance=109' 18087-3814 SWR 237 distance=110' 18162-3908 TDT 767 distance=111' 18245-3817 TDT 843 distance=112' 18074-3652 RSS 473 distance=113' 18142-3525 B 424CD distance=116' 18142-3525 B 424AB distance=116' 18142-3525 B 424AC distance=116' 18085-3612 BRT1757 distance=117' 18256-3628 OL 19 distance=120' 18235-3844 I 1364 distance=120' 18264-3700 RST4011 distance=120' 18130-3910 I 1018 distance=120' 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 18166-3717 WFC 284 118 10.7
Show 18172-3719 RST3168 198 1.8 9
Show 18160-3703 B 1355 295 0.2 16
Show 18179-3654 B 2441 179 2.9 29
Show 18146-3654 B 935 189 0.2 33
Show 18176-3646 BU 760 AB 110 3.5 35
Show 18176-3646 BU 760 AC 320 28.3 35
Show 18176-3646 BU 760 AD 318 93.8 35
Show 18142-3737 B 934 BC 187 2.5 35
Show 18142-3737 B 934 AB 29 14.8 35
Show 18142-3747 RST3163 19 1.2 41
Show 18197-3700 RST3172 336 3.9 42
Show 18128-3711 B 930 315 0.9 45
Show 18156-3633 RST3165 4 0.2 46
Show 18130-3651 B 931 254 2.3 51
Show 18131-3750 B 932 258 4.6 53
Show 18121-3703 SEE 347 182 0.2 56
Show 18153-3623 B 1354 AC 308 16.2 57
Show 18153-3623 B 1354 AB 175 4.8 57
Show 18207-3647 B 1356 228 2.5 59
Show 18215-3715 B 2445 248 6.3 59
Show 18165-3817 RST2041 198 1.7 61
Show 18127-3629 B 928 126 3.6 67
Show 18114-3812 RSS 477 121 11.0 82
Show 18231-3758 RST4009 44 0.5 88
Show 18114-3615 RST3160 191 0.3 88
Show 18202-3601 BRT1769 1 4.1 89
Show 18161-3847 RSS 481 196 9.8 90
Show 18180-3538 B 425 AB 51 2.9 102
Show 18180-3538 B 425 AC 356 7.3 102
Show 18247-3746 B 1358 311 1.1 102
Show 18251-3738 B 1360 279 2.8 105
Show 18097-3824 TVB 300 151 14.3 105
Show 18248-3642 POL 6 226 2.7 105
Show 18155-3532 BRT1763 224 3.2 106
Show 18253-3701 BRT1776 175 3.3 106
Show 18187-3534 LDS 636 6 20.8 107
Show 18090-3617 RST3155 Aa,Ab 21 0.2 109
Show 18090-3617 SHY 738 AB 254 999.9 109
Show 18087-3814 SWR 237 93 18.5 110
Show 18162-3908 TDT 767 3 2.4 111
Show 18245-3817 TDT 843 98 0.6 112
Show 18074-3652 RSS 473 110 7.2 113
Show 18142-3525 B 424 CD 41 2.8 116
Show 18142-3525 B 424 AB 82 1.0 116
Show 18142-3525 B 424 AC 143 42.5 116
Show 18085-3612 BRT1757 113 3.1 117
Show 18256-3628 OL 19 261 4.1 120
Show 18235-3844 I 1364 176 0.1 120
Show 18264-3700 RST4011 130 0.6 120
Show 18130-3910 I 1018 336 1.1 120

 
 
WDS 18166-3717 : COMPONENTS
 
 
  A
B pa=123.9°
sep=9.02"
 
 
18166-3717 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 181632.53-371719.6 Mag 10.61 PmRA -2.00
PmDE -21.0 Tycho2 7404-04884-1
Tycho2
Tycho2 7404-04884-1 Pflag RAmdeg 274.13553468 DEmdeg -37.28877907
PmRA -3.6 PmDE -23.4 E RAmdeg 51 E DEmdeg 64
E pmRA 2.3 E pmDE 2.3 EpRAm 1984.74 EpDEm 1979.95
Num 4 Q RAmdeg 0.4 Q DEmdeg 1.0 Q pmRA 0.4
Q pmDE 1.0 BTmag 12.681 E BTmag 0.307 VTmag 10.611
E VTmag 0.066 Prox 105 TYC T HIP
CCDM RAdeg 274.13554500 DEdeg -37.28872639 EpRA 1990 1.79
EpDE 1990 1.89 E RAdeg 53.0 E DEdeg 70.1 Posflg
Corr 0.0
 
 
18166-3717 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 181633.16-371724.6 Mag 12.08 PmRA 9.00
PmDE -14.0 Tycho2 7404-04886-1 Calc delta mag 1.47 Calc coord yes
Tycho2
Tycho2 7404-04886-1 Pflag RAmdeg 274.13871664 DEmdeg -37.29026567
PmRA 6.9 PmDE -11.8 E RAmdeg 86 E DEmdeg 103
E pmRA 2.5 E pmDE 2.7 EpRAm 1971.39 EpDEm 1961.31
Num 4 Q RAmdeg 1.6 Q DEmdeg 0.8 Q pmRA 1.6
Q pmDE 0.8 BTmag 12.280 E BTmag 0.214 VTmag 12.084
E VTmag 0.256 Prox 105 TYC HIP
CCDM RAdeg 274.13869694 DEdeg -37.29023917 EpRA 1990 1.78
EpDE 1990 1.89 E RAdeg 100.4 E DEdeg 131.5 Posflg
Corr 0.0