20289-2647 B 487

 
 
20h 28m 52.20s -26° 46' 45.4" P.A. 5.00 sep 1.4 mag 9.70,13.50 Sp A9V
 
 
Coord 2000 20289-2647 Discov num B   487 Comp Coord arcsec 2000 20 28 52.20 -26 46 45.4
Date first 1927 Date last 2016 Obs 3
Pa first 4 Pa last 5.4 P.A. Now (θ) 5.4°
Sep first 1.2 Sep last 1.375 Sep. Now (ρ) 1.375"
Mag pri 9.70 Mag sec 13.50 delta mag (ΔM) 3.8 Spectral class A9V (white)
Pri motion ra +013 Sec motion ra
Pri motion dec -012 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Capricornus Tycho2 6915-00630-1 Gaia DR2 6799728215131440000 HD 194850
 
 
WDS 20289-2647 B 487 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
B__1921a orb - van den Bos, W.H. 1921MNRAS..81..474V
B__1921a MNRAS 81, 474, 1921
B__1921b orb - van den Bos, W.H. .
B__1921b Proc. Amsterdam Acad. 30, 72, 1921
B__1923a Po j van den Bos, W.H. 1923BAN.....1..193V
B__1923a BAN 1, 193, 1923
B__1923b orb - van den Bos, W.H. 1923BAN.....2...25V
B__1923b BAN 2, 25, 1923
B__1923c orb - van den Bos, W.H. 1923BAN.....2...29V
B__1923c BAN 2, 29, 1923
B__1925a Ma j van den Bos, W.H. 1925AnLei..143...1V
B__1925a Ann. Leiden Obs. 14, Pt.3, 1925
B__1925b Ma j van den Bos, W.H. 1925BAN.....2..197V
B__1925b +Po BAN 2, 197, 1925
B__1926a orb - van den Bos, W.H. 1926BAN.....3..127V
B__1926a BAN 3, 127, 1926
B__1926b orb - van den Bos, W.H. 1926BAN.....3..128V
B__1926b BAN 3, 128, 1926
B__1927a orb - van den Bos, W.H. 1927BAN.....3..261V
B__1927a BAN 3, 261, 1927
B__1927b - van den Bos, W.H. 1927BAN.....4...45V
B__1927b BAN 4, 45, 1927
B__1927b (4th list of new southern double stars; precise measures in later references)
B__1927c Ma - van den Bos, W.H. 1927BAN.....4..109V
B__1927c BAN 4, 109, 1927
B__1927c (5th list of new southern double stars; precise measures in later references)
B__1927D Ma - van den Bos, W.H. 1927sdsc.book......
B__1927D cited in SDS (Southern Double Star Cat.), 1927
B__1928a Ma - van den Bos, W.H. 1928BAN.....4..235V
B__1928a BAN 4, 235, 1928
B__1928a (6th list of new southern double stars; precise measures in later references)
B__1928b Ma j van den Bos, W.H. 1928AnLei..144...1V
B__1928b Ann. Leiden Obs. 14, Pt.4, 1928
B__1928c Ma - van den Bos, W.H. 1928MNRAS..88..488F
B__1928c MNRAS 88, 488, 1928
B__1928d Ma j van den Bos, W.H. 1928CiUO...78...13V
B__1928d Union Obs. Johannesburg Circ. 78, 13, 1928
B__1928e orb - van den Bos, W.H. .
B__1928e Mem. Copenhagen Acad. 12, 2, 1928
B__1929a Ma j van den Bos, W.H. 1929CiUO...80...59V
B__1929a Union Obs. Johannesburg Circ. 80, 59, 1929
B__1929b orb - van den Bos, W.H. 1929CiUO...79...49V
B__1929b Union Obs. Johannesburg Circ. 79, 49, 1929
B__1929c Ma - van den Bos, W.H. 1929BAN.....5..125V
B__1929c BAN 5, 125, 1929
B__1930a Ma j van den Bos, W.H. 1930CiUO...83..135V
B__1930a Union Obs. Johannesburg Circ. 83, 135, 1930
B__1930b Ma - van den Bos, W.H. 1930BAN.....5..179V
B__1930b BAN 5, 179, 1930
B__1930c Ma - van den Bos, W.H. 1930BAN.....5..183V
B__1930c BAN 5, 183, 1930
B__1931a Ma - van den Bos, W.H. 1931MNRAS..92...19F
B__1931a MNRAS 92, 19, 1931
B__1931b Ma - van den Bos, W.H. 1931CiUO...85..183V
B__1931b Union Obs. Johannesburg Circ. 85, 183, 1931
B__1932a Ma j van den Bos, W.H. 1932CiUO...87..273V
B__1932a Union Obs. Johannesburg Circ. 87, 273, 1932
B__1932b Ma j van den Bos, W.H. 1932CiUO...88..324V
B__1932b Union Obs. Johannesburg Circ. 88, 324, 1932
B__1932C Ma - van den Bos, W.H. 1932QB821.A43......
B__1932C cited in ADS (Aitken Double Star Cat.), 1932
B__1933a Ma - van den Bos, W.H. 1933BAN.....7....1V
B__1933a BAN 7, 1, 1933
B__1933b J - van den Bos, W.H. 1933CiUO...90..379V
B__1933b Union Obs. Johannesburg Circ. 90, 379, 1933
B__1933c orb - van den Bos, W.H. 1933CiUO...90..388V
B__1933c Union Obs. Johannesburg Circ. 90, 388, 1933
B__1933d Ma j van den Bos, W.H. 1933CiUO...90..401V
B__1933d Union Obs. Johannesburg Circ. 90, 401, 1933
B__1934a Ma - van den Bos, W.H. 1934CiUO...92...61V
B__1934a Union Obs. Johannesburg Circ. 92, 61, 1934
B__1934b orb - van den Bos, W.H. 1934CiUO...92..102V
B__1934b Union Obs. Johannesburg Circ. 92, 102, 1934
B__1935a Ma j van den Bos, W.H. 1935CiUO...94..134V
B__1935a +J Union Obs. Johannesburg Circ. 93, 134, 1935
B__1935b orb - van den Bos, W.H. 1935CiUO...94..148V
B__1935b Union Obs. Johannesburg Circ. 94, 148, 1935
B__1935c Ma j van den Bos, W.H. 1935CiUO...94..149V
B__1935c Union Obs. Johannesburg Circ. 94, 149, 1935
B__1935D orb - van den Bos, W.H. 1935QB821.A3.......
B__1935D letter cited by Aitken, The Binary Stars, 1935
B__1936a orb - van den Bos, W.H. 1936CiUO...96..231V
B__1936a Union Obs. Johannesburg Circ. 96, 231, 1936
B__1936b Ma j van den Bos, W.H. 1936CiUO...96..234V
B__1936b Union Obs. Johannesburg Circ. 96, 234, 1936
B__1937a orb - van den Bos, W.H. 1937CiUO...98..341V
B__1937a Union Obs. Johannesburg Circ. 98, 341, 1937
B__1937b Ma - van den Bos, W.H. 1937CiUO...98..362V
B__1937b Union Obs. Johannesburg Circ. 98, 362, 1937
B__1938a orb - van den Bos, W.H. 1938CiUO...99..445V
B__1938a Union Obs. Johannesburg Circ. 99, 445, 1938
B__1938d orb - van den Bos, W.H. 1938CiUO..100..480V
B__1938d Union Obs. Johannesburg Circ. 100, 480, 1938
B__1938e Ma j van den Bos, W.H. 1938CiUO..100..481V
B__1938e Union Obs. Johannesburg Circ. 100, 481, 1938
B__1940 orb - van den Bos, W.H. 1940CiUO..102...49V
B__1940 Union Obs. Johannesburg Circ. 102, 49, 1940
B__1943A Ma - van den Bos, W.H. 1943AJ.....50..139A
B__1943A cited by Alden (1943 AJ 50, 139)
B__1941 orb - van den Bos, W.H. 1941CiUO..104...73V
B__1941 Union Obs. Johannesburg Circ. 104, 73, 1941
B__1945 orb - van den Bos, W.H. 1945AJ.....51..198V
B__1945 AJ 51, 198, 1945
B__1947 Ma - van den Bos, W.H. 1947CiUO..105..134V
B__1947 Union Obs. Johannesburg Circ. 105, 134, 1947
B__1947b Po j van den Bos, W.H. (in Voute et al.) 1947AnBos...6....3V
B__1947b Ann. Bosscha Obs. Lembang 6, Pt.3, C1, 1947
B__1948 Ma - van den Bos, W.H. 1948CiUO..107..259V
B__1948 Union Obs. Johannesburg Circ. 107, 259, 1948
B__1949a orb - van den Bos, W.H. 1949CiUO..108..310V
B__1949a Union Obs. Johannesburg Circ. 108, 310, 1949
B__1949b orb - van den Bos, W.H. 1949CiUO..108..311V
B__1949b Union Obs. Johannesburg Circ. 108, 311, 1949
B__1949c Ma j van den Bos, W.H. 1949CiUO..108..312V
B__1949c Union Obs. Johannesburg Circ. 108, 312, 1949
B__1950a orb - van den Bos, W.H. 1950CiUO..109..366V
B__1950a Union Obs. Johannesburg Circ. 109, 366, 1950
B__1950b orb - van den Bos, W.H. 1950CiUO..109..370V
B__1950b Union Obs. Johannesburg Circ. 109, 370, 1950
B__1950c Ma - van den Bos, W.H. 1950CiUO..109..371V
B__1950c Union Obs. Johannesburg Circ. 109, 371, 1950
B__1951a Ma j van den Bos, W.H. 1951CiUO..111...13V
B__1951a +J Union Obs. Johannesburg Circ. 111, 13, 1951
B__1951b orb - van den Bos, W.H. 1951CiUO..111...11V
B__1951b Union Obs. Johannesburg Circ. 111, 11, 1951
B__1951c orb - van den Bos, W.H. 1951CiUO..112..143V
B__1951c Union Obs. Johannesburg Circ. 112, 143, 1951
B__1951d - van den Bos, W.H. 1951JO.....34...85V
B__1951d J. Obs. 34, 85, 1951
B__1953a Ma - van den Bos, W.H. 1953CiUO..113..185V
B__1953a Union Obs. Johannesburg Circ. 113, 185, 1953
B__1953b orb - van den Bos, W.H. 1953CiUO..113..209V
B__1953b Union Obs. Johannesburg Circ. 113, 209-219, 1953 1953MNSSA..12...19V
B__1953b (also MNASSA 12, 19, 1953; MNASSA 12, 57, 1953) 1953MNSSA..12...57V
B__1954 orb - van den Bos, W.H. 1954CiUO..114..235V
B__1954 Union Obs. Johannesburg Circ. 114, 235, 1954
B__1956a Ma - van den Bos, W.H. 1956CiUO..115..266V
B__1956a +J Union Obs. Johannesburg Circ. 115, 266, 1956
B__1956b orb - van den Bos, W.H. 1956CiUO..115..279V
B__1956b Union Obs. Johannesburg Circ. 115, 279-284, 1956
B__1956c orb - van den Bos, W.H. 1956MNSSA..15...39V
B__1956c MNASSA 15, 39, 1956
B__1957a orb - van den Bos, W.H. 1957CiUO..116..289V
B__1957a Union Obs. Johannesburg Circ. 116, 289-291, 1957
B__1957b Ma - van den Bos, W.H. 1957CiUO..116..291V
B__1957b Union Obs. Johannesburg Circ. 116, 291, 1957
B__1958 Ma - van den Bos, W.H. 1958AJ.....63...63V
B__1958 AJ 63, 63, 1958
B__1959a Mb j van den Bos, W.H. 1959ApJS....4...45V
B__1959a ApJS 4, 45, 1959
B__1959b orb - van den Bos, W.H. 1959JO.....42...79V
B__1959b J. Obs. 42, 79, 1959
B__1959c orb - van den Bos, W.H. 1959JO.....42...93V
B__1959c J. Obs. 42, 93, 1959
B__1959d Ma - van den Bos, W.H. 1959CiUO..118..308V
B__1959d Union Obs. Johannesburg Circ. 118, 308, 1959
B__1959e orb - van den Bos, W.H. 1959CiUO..118..311V
B__1959e Union Obs. Johannesburg Circ. 118, 311-312, 1959
B__1960a Ma - van den Bos, W.H. 1960CiUO..119..321V
B__1960a Union Obs. Johannesburg Circ. 119, 321, 1960
B__1960b Ma j van den Bos, W.H. 1960PYerO...9....1B
B__1960b +Mb Pub. Yerkes Obs. 9, pt. 1, 1960
B__1960c orb - van den Bos, W.H. 1960JO.....43..145V
B__1960c J. Obs. 43, 145, 1960
B__1960d orb - van den Bos, W.H. 1960JO.....43..152V
B__1960d J. Obs. 43, 152, 1960
B__1960e orb - van den Bos, W.H. 1960CiUO..119..359V
B__1960e Union Obs. Johannesburg Circ. 119, 339-340, 1960
B__1960f orb - van den Bos, W.H. 1960CiUO..119..341V
B__1960f Union Obs. Johannesburg Circ. 119, 341-343, 1960
B__1961a Ma - van den Bos, W.H. 1961CiUO..120..353V
B__1961a Union Obs. Johannesburg Circ. 120, 353, 1961
B__1961b orb - van den Bos, W.H. 1961CiUO..120..374V
B__1961b Union Obs. Johannesburg Circ. 120, 374-375, 1961
B__1961c orb - van den Bos, W.H. 1961CiUO..120..377V
B__1961c Union Obs. Johannesburg Circ. 120, 377-379, 1961
B__1961d orb - van den Bos, W.H. 1961CiUO..120..380V
B__1961d Union Obs. Johannesburg Circ. 120, 380-381, 1961
B__1961e orb - van den Bos, W.H. 1961PASP...74..201V
B__1961e PASP 74, 201, 1961
B__1962a Ma - van den Bos, W.H. 1962AJ.....67..141V
B__1962a AJ 67, 141, 1962
B__1962b orb - van den Bos, W.H. 1962AJ.....67..552V
B__1962b AJ 67, 552, 1962
B__1962c orb - van den Bos, W.H. 1962JO.....45...55V
B__1962c J. Obs. 45, 55, 1962
B__1962d Ma j van den Bos, W.H. 1962AJ.....67..555V
B__1962d AJ 67, 555, 1962
B__1963a Ma - van den Bos, W.H. 1963AJ.....68...57V
B__1963a AJ 68, 57, 1963
B__1963b Ma j van den Bos, W.H. 1963AJ.....68..582V
B__1963b AJ 68, 582, 1963
B__1964a orb - van den Bos, W.H. 1964ROCi..123...62V
B__1964a Republic Obs. Circ. 123, 62, 1964
B__1964b orb - van den Bos, W.H. 1964JO.....47...34V
B__1964b J. Obs. 47, 34, 1964
B__1965a Ma - van den Bos, W.H. 1965ROCi..124...70V
B__1965a Republic Obs. Circ. 124, 70, 1965
B__1965b orb - van den Bos, W.H. 1965ROCi..124...86V
B__1965b Republic Obs. Circ. 124, 86, 1965
B__1966a Ma - van den Bos, W.H. 1966ROCi..125...93V
B__1966a Republic Obs. Circ. 125, 93, 1966
B__1966b orb - van den Bos, W.H. 1966ROCi..125..112V
B__1966b Republic Obs. Circ. 125, 112, 1966
B__1966c orb - van den Bos, W.H. 1966ROCi..125..118V
B__1966c Republic Obs. Circ. 125, 118, 1966
B__1966d orb - van den Bos, W.H. 1966ROCi..125..119V
B__1966d Republic Obs. Circ. 125, 119-120, 1966
B__1967 Ma - van den Bos, W.H. 1967ROCi..126..127V
B__1967 Republic Obs. Circ. 126, 127, 1967
B__1967b orb - van den Bos, W.H. 1967JO.....13..119V
B__1967b J. Obs. 13, 119, 1967
B__1968 Ma - van den Bos, W.H. 1968ROCi..127..157V
B__1968 Republic Obs. Circ. 127, 157, 1968
B__9999 Ma - van den Bos, W.H. ...................
B__9999 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
20289-2647 B 487 1959 2 5 1.3 9.70 13.50 A9V 202852.20-264645.4
20289-2647 B 487 2016 3 5 1.4 9.70 13.50 A9V 202852.20-264645.4

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WDS 20289-2647 B 487 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20289-2647 B 487 : MEASURES
 
 
No records found.

 
 
WDS 20289-2647 : VIRTUAL EYEPIECE
 
 

20289-2647 B   487A mag 9.7 Sp A9V 20289-2647 B   487B sep 1.4 P.A. 4.80 mag 13.5 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.

Radius:
Components only
 
 
WDS 20289-2647 : ALADIN DSS IMAGE @ 20h 28m 52.20s -26° 46' 45.4"
 
 
 
 
WDS 20289-2647 B 487 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


20289-2647  B   487 distance=0' 20288-2638  RST2141 distance=9' 20310-2700  DAM1042 distance=33' 20265-2638  HWE  54 distance=33' 20297-2719  COO 240 distance=34' 20313-2707  SKF2086 distance=39' 20319-2655  RST2143 distance=41' 20331-2633  LDS5907 distance=59' 20299-2547  HDS2930 distance=62' 20334-2643  B   491 distance=62' 20240-2630  UC 4166 distance=67' 20339-2710  CBL 178 distance=72' 20236-2644  HO  456 distance=72' 20338-2616  RST2144 distance=74' 20228-2649  B   480 distance=81' 20228-2642  TDT2222 distance=82' 20319-2806  TDT2341 distance=89' 20337-2541  H N   7AB distance=94' 20337-2541  H N   7AC distance=94' 20337-2541  H N   7AD distance=94' 20292-2510  HJ 2964 distance=98' 20323-2519  UC 4208 distance=100' 20365-2632  STN  52 distance=104' 20346-2530  B  2887 distance=108' 20349-2531  B   494 distance=111' 20252-2506  UC 4174 distance=113' 20208-2720  SEE 414 distance=114' 20373-2717  HJ 2982 distance=118' 20254-2840  CHR  97 distance=122' 20235-2827  DAW 152AB distance=124' 20242-2459  SEE 418 distance=126' 20325-2843  SKF2087AB distance=126' 20325-2843  DAM1043AC distance=126' 20250-2452  UC 4172 distance=127' 20213-2805  KPP1098 distance=128' 20195-2620  B   476 distance=128' 20205-2749  RST3255 distance=129' 20271-2438  B   483 distance=132' 20202-2750  SEE 416AB distance=132' 20202-2750  SEE 416AB,C distance=132' 20365-2813  RST2147 distance=134' 20192-2610  RST1067 distance=135' 20358-2501  DON 989 distance=142' 20310-2907  CHR 185 distance=143' 20396-2704  HJ 5210 distance=144' 20375-2817  BRT3093 distance=146' 20396-2717  RST2150 distance=147' 20209-2828  LDS5904AB distance=147' 20209-2828  LDS5904Aa,Ab distance=147' 20386-2540  B   498 distance=148' 20299-2418  UC 4201 distance=150' grafico limitrofi
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Show name coord_2000 discov# comp pa sep dist(')
Show 20289-2647 B 487 5 1.4
Show 20288-2638 RST2141 139 1.7 9
Show 20310-2700 DAM1042 179 10.8 33
Show 20265-2638 HWE 54 59 2.8 33
Show 20297-2719 COO 240 21 7.1 34
Show 20313-2707 SKF2086 306 7.1 39
Show 20319-2655 RST2143 259 0.3 41
Show 20331-2633 LDS5907 211 206.4 59
Show 20299-2547 HDS2930 11.4 62
Show 20334-2643 B 491 104 2.6 62
Show 20240-2630 UC 4166 332 59.9 67
Show 20339-2710 CBL 178 40 52.0 72
Show 20236-2644 HO 456 194 13.2 72
Show 20338-2616 RST2144 115 0.4 74
Show 20228-2649 B 480 168 1.1 81
Show 20228-2642 TDT2222 22 0.6 82
Show 20319-2806 TDT2341 318 0.5 89
Show 20337-2541 H N 7 AB 160 14.6 94
Show 20337-2541 H N 7 AC 336 15.7 94
Show 20337-2541 H N 7 AD 228 21.1 94
Show 20292-2510 HJ 2964 42 36.0 98
Show 20323-2519 UC 4208 79 23.7 100
Show 20365-2632 STN 52 251 1.7 104
Show 20346-2530 B 2887 209 7.4 108
Show 20349-2531 B 494 197 0.8 111
Show 20252-2506 UC 4174 145 39.1 113
Show 20208-2720 SEE 414 53 2.2 114
Show 20373-2717 HJ 2982 137 15.8 118
Show 20254-2840 CHR 97 10 0.1 122
Show 20235-2827 DAW 152 AB 295 2.6 124
Show 20242-2459 SEE 418 54 2.7 126
Show 20325-2843 SKF2087 AB 9 61.0 126
Show 20325-2843 DAM1043 AC 197 11.5 126
Show 20250-2452 UC 4172 304 15.6 127
Show 20213-2805 KPP1098 254 8.7 128
Show 20195-2620 B 476 281 0.4 128
Show 20205-2749 RST3255 109 0.1 129
Show 20271-2438 B 483 57 4.4 132
Show 20202-2750 SEE 416 AB 248 1.1 132
Show 20202-2750 SEE 416 AB,C 261 25.0 132
Show 20365-2813 RST2147 315 1.2 134
Show 20192-2610 RST1067 278 5.0 135
Show 20358-2501 DON 989 103 1.1 142
Show 20310-2907 CHR 185 266 0.0 143
Show 20396-2704 HJ 5210 263 10.7 144
Show 20375-2817 BRT3093 85 3.8 146
Show 20396-2717 RST2150 5 1.7 147
Show 20209-2828 LDS5904 AB 49 254.6 147
Show 20209-2828 LDS5904 Aa,Ab 345 2.1 147
Show 20386-2540 B 498 17 0.4 148
Show 20299-2418 UC 4201 239 33.1 150

 
 
WDS 20289-2647 : COMPONENTS
 
 
  A
B pa=4.8°
sep=1.37"
 
 
20289-2647 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 202852.20-264645.4 Mag 9.7 Spectral class A9V (white)
PmRA 13.00 PmDE -12.0 Tycho2 6915-00630-1 HD 194850
Tycho2
Tycho2 6915-00630-1 Pflag RAmdeg 307.21751885 DEmdeg -26.77928839
PmRA 5.6 PmDE -12.4 E RAmdeg 16 E DEmdeg 19
E pmRA 1.8 E pmDE 1.7 EpRAm 1988.76 EpDEm 1987.14
Num 5 Q RAmdeg 1.1 Q DEmdeg 1.2 Q pmRA 1.1
Q pmDE 1.2 BTmag 10.113 E BTmag 0.032 VTmag 9.704
E VTmag 0.031 Prox 999 TYC T HIP
CCDM RAdeg 307.21750417 DEdeg -26.77926083 EpRA 1990 1.81
EpDE 1990 1.59 E RAdeg 17.3 E DEdeg 21.0 Posflg
Corr -0.1
 
 
20289-2647 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202852.21-264644.0 Mag 13.5 Calc delta mag 3.8
Calc coord yes