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Current system
20275-4838
I 663
HD 194418


Nearby doubles
20' : 20291-4826
I 1421

29' : 20266-4905
BRT1109

38' : 20238-4845
NSC 29

42' : 20266-4758
I 1419AB

61' : 20228-4800
UC 4162

67' : 20261-4734
I 1086

71' : 20343-4816
I 1423AB

73' : 20238-4736
FIN 278

73' : 20321-4742
I 1087AB

77' : 20331-4932
UC 4215

84' : 20248-4719
HDS2920

86' : 20358-4815
BRT1112

88' : 20327-4949
TSN 34

94' : 20192-4757
RST1066

96' : 20333-4722
BRT1110

98' : 20177-4834
BRT1106

98' : 20358-4747
I 665

100' : 20227-4711
TDT2219

100' : 20217-5000
SKF 376

102' : 20315-5012
B 488

102' : 20191-4937
RST1065

104' : 20286-4655
RSS 548

106' : 20380-4828
WSP 88

106' : 20381-4846
UC 4241

111' : 20163-4826
LDS 707

111' : 20385-4821
BRT1113



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.

20275-4838 I 663 (HD 194418)

 
 
20h 27m 30.98s -48° 38' 08.7" P.A. 71.00 sep 0.8 mag 9.67,9.83 Sp F3V dist. 154.32 pc (503.39 l.y.)
 
 
Coord 2000 20275-4838 Discov num I   663 Comp Coord arcsec 2000 20 27 30.98 -48 38 08.7
Date first 1909 Date last 2008 Obs 10
Pa first 80 Pa last 70.7 P.A. Now (θ) 70.7°
Sep first 0.7 Sep last 0.77 Sep. Now (ρ) 0.77"
Mag pri 9.67 Mag sec 9.83 delta mag (ΔM) 0.16 Spectral class F3V (yellow-white)
Pri motion ra -003 Sec motion ra -003
Pri motion dec +003 Sec motion dec +003
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 194418 Constellation Telescopium SAO 230217 HIP 100901
Tycho2 8410-01730-1 Gaia DR2 6668255241815024128 HD 194418 CD CD-4913105
CP CP-4911228 Distance 154.32 Distance ly 503.39
 
 
WDS 20275-4838 I 663 (HD 194418) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
I__1895 Ma - Innes, R.T.A. 1895MNRAS..55..312I
I__1895 +Mb MNRAS 55, 312,544, 1895
I__1896 Mb - Innes, R.T.A. 1896JBAA....6..261I
I__1896 J. British Astron. Assoc. 6, 261, 1896
I__1897a Ma - Innes, R.T.A. 1897MNRAS..57..533I
I__1897a MNRAS 57, 533, 1897 (data also in I__1897b, 1897AN....143..171I
I__1897a I__1897c) 1897AN....144...89I
I__1897b Ma - Innes, R.T.A. 1897AN....143..171I
I__1897b AN 143, 171, 1897
I__1897c Ma - Innes, R.T.A. 1897AN....144...89I
I__1897c AN 144, 89, 1897
I__1897d Ma - Innes, R.T.A. 1897AN....145...93I
I__1897d AN 145, 93, 1897
I__1897e Ma - Innes, R.T.A. 1897MNRAS..57..456I
I__1897e +Mb MNRAS 57, 456, 1897
I__1897f Ma - Innes, R.T.A. 1897MNRAS..58...48I
I__1897f MNRAS 58, 48, 1897
I__1897g Ma - Innes, R.T.A. 1897AJ.....18...65I
I__1897g AJ 18, 65, 1897
I__1898 Ma - Innes, R.T.A. 1898AN....146..369I
I__1898 AN 146, 369, 1898
I__1899 Ma - Innes, R.T.A. 1899QB4.C22v2......
I__1899 Ann. Cape Obs. 2, Pt.2, 1899 (Innes Reference Catalog)
I__1901 Ma - Innes, R.T.A. 1901MNRAS..61..575.
I__1901 MNRAS 61, 575, 1901 (data also in I__1905) 1905AnCap...2....4I
I__1902a Ma - Innes, R.T.A. 1902MNRAS..62..470I
I__1902a MNRAS 62, 470, 1902 (data also in I__1905) 1905AnCap...2....4I
I__1902b Ma - Innes, R.T.A. 1902MNRAS..63...76I
I__1902b MNRAS 63, 76, 1902 (some data also in I__1905) 1905AnCap...2....4I
I__1903 - Innes, R.T.A. 1903MNRAS..64..130I
I__1903 MNRAS 64, 130, 1903 (data also in I__1905) 1905AnCap...2....4I
I__1903b Ma - Innes, R.T.A. 1903Obs....26..285I
I__1903b Obs 26, 285, 1903 (some data also in I__1905) 1905AnCap...2....4I
I__1905 Ma - Innes, R.T.A. 1905AnCap...2....4I
I__1905 Ann. Cape Obs. 2, Pt.4, 1905
I__1907 Ma - Innes, R.T.A. 1907Obs....30...61I
I__1907 Obs 30, 61, 1907
I__1908 - Innes, R.T.A. 1908Obs....31..289I
I__1908 Obs 31, 289, 1908 (measures also in I__1909)
I__1909 Ma - Innes, R.T.A. .
I__1909 Transvaal Obs. Circ. 1, 1, 1909
I__1910 Ma - Innes, R.T.A. .
I__1910 Transvaal Obs. Circ. 1, 21, 1910
I__1911 Ma - Innes, R.T.A. .
I__1911 Transvaal Obs. Circ. 1, 61, 1911
I__1912 Ma - Innes, R.T.A. .
I__1912 Transvaal Obs. Circ. 1, 111, 1912
I__1913a Ma - Innes, R.T.A. 1913CiUO....4...31.
I__1913a Union Obs. Johannesburg Circ. 4, 31, 1913
I__1913b Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1913CiUO....4...31.
I__1913b Union Obs. Johannesburg Circ. 4, 31, 1913
I__1914 Ma - Innes, R.T.A. 1914CiUO...14...97.
I__1914 Union Obs. Johannesburg Circ. 14, 97, 1914
I__1915a Ma - Innes, R.T.A. 1915CiUO...24..185.
I__1915a Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915b Ma - Innes, R.T.A. (measure by Cox, G.W.) 1915CiUO...24..185.
I__1915b Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915c Ma - Innes, R.T.A. (measure by Johnson, E.L.) 1915CiUO...24..185.
I__1915c Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915d Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1915CiUO...24..185.
I__1915d Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915e - Innes, R.T.A. 1915Obs....38..221I
I__1915e Obs 38, 221, 1915 (measures also in I__1916) 1916CiUO...33..249I
I__1915f - Innes, R.T.A. 1915Obs....38..333I
I__1915f Obs 38, 333, 1915 (measures also in I__1915) 1915CiUO...24..185I
I__1916a Ma - Innes, R.T.A. 1916CiUO...33..249I
I__1916a Union Obs. Johannesburg Circ. 33, 249, 1916
I__1916b Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1916CiUO...33..249I
I__1916b Union Obs. Johannesburg Circ. 33, 249, 1916
I__1916c Ma - Innes, R.T.A. (measure by van der Spuy, K.) 1916CiUO...33..249I
I__1916c Union Obs. Johannesburg Circ. 33, 249, 1916
I__1917a Ma - Innes, R.T.A. 1917CiUO...37..285I
I__1917a Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917b Ma - Innes, R.T.A. (measure by Johnson, E.L.) 1917CiUO...37..285I
I__1917b Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917c Ma - Innes, R.T.A. (measure by van der Spuy, K.) 1917CiUO...37..285I
I__1917c Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917d Ma - Innes, R.T.A. (measure by Worssell, W.M.) 1917CiUO...37..285I
I__1917d Union Obs. Johannesburg Circ. 37, 285, 1917
I__1918 Ma - Innes, R.T.A. 1918CiUO...41..339I
I__1918 Union Obs. Johannesburg Circ. 41, 339, 1918
I__1927a Ma - Innes, R.T.A. 1927sdsc.book.....I
I__1927a +Po Southern Double Star Cat. 1927
I__1927b Ma - Innes, R.T.A. & van den Bos, W.H. 1927sdsc.book.....I
I__1927b Southern Double Star Cat. 1927
I__1932A Ma - Innes, R.T.A. 1932QB821.A43......
I__1932A cited in ADS (Aitken Double Star Cat.), 1932
I__1948a Ma - Innes, R.T.A. 1948CiUO..106..193I
I__1948a +Po Union Obs. Johannesburg Circ. 106, 193, 1948
I__1948b Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1948CiUO..106..193I
I__1948b Union Obs. Johannesburg Circ. 106, 193, 1948
I__9999 Ma - Innes, R.T.A. ...................
I__9999 +Mb 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
20275-4838 I 663 1991 9 84 0.5 9.67 9.83 F3V D 202730.98-483808.7
20275-4838 I 663 2008 10 71 0.8 9.67 9.83 F3V D 202730.98-483808.7

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

 
 
WDS 20275-4838 I 663 (HD 194418) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20275-4838 I 663 (HD 194418) : MEASURES
 
 
No records found.

 
 
WDS 20275-4838 (HD 194418) : VIRTUAL EYEPIECE
 
 

20275-4838 I 663A mag 9.67 Sp F3V 20275-4838 I 663B sep 0.5 P.A. 62.10 mag 9.83 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20275-4838 (HD 194418) : ALADIN DSS IMAGE @ 20h 27m 30.98s -48° 38' 08.7"
 
 
 
 
WDS 20275-4838 I 663 (HD 194418) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20275-4838 I 663 distance=0' 20291-4826 I 1421 distance=20' 20266-4905 BRT1109 distance=29' 20238-4845 NSC 29 distance=38' 20266-4758 I 1419BC distance=41' 20266-4758 I 1419AB distance=42' 20228-4800 UC 4162 distance=61' 20261-4734 I 1086 distance=67' 20343-4816 I 1423AB distance=71' 20343-4816 TOI2244AC distance=71' 20238-4736 FIN 278 distance=73' 20321-4742 I 1087AB distance=73' 20321-4742 TOK 628AC distance=73' 20331-4932 UC 4215 distance=77' 20248-4719 HDS2920 distance=84' 20358-4815 BRT1112 distance=86' 20327-4949 TSN 34 distance=88' 20192-4757 RST1066 distance=94' 20333-4722 BRT1110 distance=96' 20177-4834 BRT1106 distance=98' 20358-4747 I 665 distance=98' 20227-4711 TDT2219 distance=100' 20217-5000 SKF 376 distance=100' 20315-5012 B 488 distance=102' 20191-4937 RST1065 distance=102' 20286-4655 RSS 548 distance=104' 20380-4828 WSP 88 distance=106' 20381-4846 UC 4241 distance=106' 20163-4826 LDS 707 distance=111' 20385-4821 BRT1113 distance=111' 20205-4713 I 1415 distance=111' 20174-4750 UC 4139 distance=113' 20354-5014 LDS 714AC distance=123' 20354-5014 WOR9002AB distance=123' 20195-4702 TSN 10 distance=126' 20376-4717 HJ 5209AB (Al nair) distance=130' 20376-4717 HJ 5209AC (Al nair) distance=130' 20232-5047 RST1068 distance=136' 20402-4749 UC 4252 distance=136' 20139-4812 TDT2107 distance=139' 20403-4956 KRW 2 distance=148' 20291-5105 I 664 distance=148' 20267-5107 UC 4186 distance=150' 20176-5034 HDS2896 distance=151' 20274-5108 RST1070 distance=151' 20421-4825 SKF1167 distance=151' 20296-4609 I 1422 distance=151' 20270-5111 KPP 584 distance=154' 20264-4603 UC 4184 distance=156' 20413-4725 CPO 617 distance=157' 20142-5007 VSP 55 distance=158' 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 20275-4838 I 663 71 0.8
Show 20291-4826 I 1421 341 0.4 20
Show 20266-4905 BRT1109 108 5.4 29
Show 20238-4845 NSC 29 225 11.4 38
Show 20266-4758 I 1419 BC 342 3.4 41
Show 20266-4758 I 1419 AB 129 55.1 42
Show 20228-4800 UC 4162 127 41.6 61
Show 20261-4734 I 1086 23 2.2 67
Show 20343-4816 I 1423 AB 50 1.5 71
Show 20343-4816 TOI2244 AC 307 20.3 71
Show 20238-4736 FIN 278 202 3.9 73
Show 20321-4742 I 1087 AB 95 3.5 73
Show 20321-4742 TOK 628 AC 120 999.9 73
Show 20331-4932 UC 4215 113 41.9 77
Show 20248-4719 HDS2920 227 0.2 84
Show 20358-4815 BRT1112 145 4.8 86
Show 20327-4949 TSN 34 213 8.7 88
Show 20192-4757 RST1066 184 0.5 94
Show 20333-4722 BRT1110 239 4.1 96
Show 20177-4834 BRT1106 73 4.5 98
Show 20358-4747 I 665 304 2.9 98
Show 20227-4711 TDT2219 283 0.5 100
Show 20217-5000 SKF 376 300 21.3 100
Show 20315-5012 B 488 78 1.7 102
Show 20191-4937 RST1065 69 1.3 102
Show 20286-4655 RSS 548 174 15.4 104
Show 20380-4828 WSP 88 147 16.3 106
Show 20381-4846 UC 4241 189 44.7 106
Show 20163-4826 LDS 707 25 18.3 111
Show 20385-4821 BRT1113 211 4.6 111
Show 20205-4713 I 1415 35 1.8 111
Show 20174-4750 UC 4139 4 30.2 113
Show 20354-5014 LDS 714 AC 238 100.3 123
Show 20354-5014 WOR9002 AB 273 1.1 123
Show 20195-4702 TSN 10 87 68.3 126
Show Al nair 20376-4717 HJ 5209 AB 206 69.2 130
Show Al nair 20376-4717 HJ 5209 AC 336 57.5 130
Show 20232-5047 RST1068 203 0.3 136
Show 20402-4749 UC 4252 317 5.7 136
Show 20139-4812 TDT2107 242 0.6 139
Show 20403-4956 KRW 2 62 20.5 148
Show 20291-5105 I 664 281 1.5 148
Show 20267-5107 UC 4186 345 9.2 150
Show 20176-5034 HDS2896 70 12.8 151
Show 20274-5108 RST1070 287 1.2 151
Show 20421-4825 SKF1167 253 84.3 151
Show 20296-4609 I 1422 17 0.1 151
Show 20270-5111 KPP 584 85 5.4 154
Show 20264-4603 UC 4184 90 71.7 156
Show 20413-4725 CPO 617 165 4.8 157
Show 20142-5007 VSP 55 96 0.1 158

 
 
WDS 20275-4838 : COMPONENTS
 
 
  A
B pa=62.1°
sep=0.54"
 
 
20275-4838 A
 
 
Componente originario normalizzato AB Name HD 194418 Coord arcsec 2000 202730.98-483808.7 Mag 9.67
Spectral class F3V (yellow-white) PmRA -3.00 PmDE 3.0 SAO 230217
HIP 100901 Tycho2 8410-01730-1 HD 194418 CD CD-4913105
CP CP-4911228
Tycho2
Tycho2 8410-01730-1 Pflag RAmdeg 306.87915675 DEmdeg -48.63574981
PmRA -2.9 PmDE 3.2 E RAmdeg 10 E DEmdeg 13
E pmRA 1.1 E pmDE 1.1 EpRAm 1989.73 EpDEm 1987.79
Num 9 Q RAmdeg 1.1 Q DEmdeg 1.0 Q pmRA 1.1
Q pmDE 1.0 BTmag 9.451 E BTmag 0.022 VTmag 9.085
E VTmag 0.021 Prox 999 TYC T HIP 100901
CCDM AB RAdeg 306.87916583 DEdeg -48.63575778 EpRA 1990 1.75
EpDE 1990 1.57 E RAdeg 10.2 E DEdeg 14.0 Posflg P
Corr -0.1
SAO
SAO 230217 DelFlag RA1950 PmRA1950 -0.0002
DE1950 PmDE1950 -0.002 Vmag 8.9 SpType F2
Double code Source 48 CatNum 18809 DM CP-4911228
DMcomp BDsup HD 194418 M HD 0
GC RA1950rad 5.34041503 DE1950rad -0.85174233 PmRA2000 -0.0003
PmDE2000 -0.006
Hipparcos
Catalog H HIP 100901 Proxy H RAhms 20 27 30.99
DEdms -48 38 08.8 Vmag 8.92 VarFlag R Vmag H
RAdeg 306.879 DEdeg -48.6358 AstroRef A Plx 7.49
CCDM 20275-4838 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 72 Rho 0.776 HD 194418 BD
CD CD-4913105 CP CP-4911228 Dm number -4913105 VIred 0.45
SpType F3V R SpType Coord arcsec 2000 202730.99-483808.8
Hipparcos 2
HIP 100901 Sn 15 So 3 Nc 2
RArad 5.3560511386 DErad -0.848854252 Plx 6.48 PmRA 2.11
PmDE 3.41 E RArad 1.62 E DErad 1.04 E Plx 1.78
E pmRA 3.08 E pmDE 1.53 Hpmag 9.0147 E Hpmag 0.0029
SHp 0.02 VA 0 BV 0.395 E BV 0.025
VI 0.46
CCDM
Ccdm 20275-4838 RComp Comp A Note1
Note2 Discov num DRAs 0.98 DDEs -9.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.1 Sp F2 PmNote *
PmRA -2 PmDE -2 Dm number -4913105 Cat1 CD
Name2 230217 Cat2 SAO HD 194418 M HD
ADS BDS M ADS BDS N IDS IDS 20203S4858A
HIC 100901
 
 
20275-4838 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202731.03-483808.4 Mag 9.83 PmRA -3.00
PmDE 3.0 Calc delta mag 0.16 Calc coord yes
CCDM
Ccdm 20275-4838 RComp Comp B Note1
Note2 Discov num I 663 DRAs DDEs
R dRAs Year 1913 Theta 077 Rho 0.8
Obs 5 Vmag 10.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20203S4858B
HIC 100901