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Current system
21556+6040
MLR 509


Nearby doubles
14' : 21564+6029
TDT3250

27' : 21579+6101
MLR 17AB

32' : 21597+6049
BVD 339

32' : 21598+6033
A 779

39' : 22005+6054
MLR 510

40' : 21573+6118
BU 275

50' : 21569+5948
WAK 20

51' : 21559+5950
STT 537

54' : 21565+5948
STT 458AB

55' : 21543+6134
ES 1922

56' : 22023+6106
BU 695AB

57' : 21518+6129
STI1063AB

57' : 22033+6051
STF2860AB

58' : 21506+6024
STI1059

61' : 21493+6002
STI1053

62' : 21554+5938
JNN 292

65' : 21575+5937
MLB 92

66' : 21507+5947
STI1058

66' : 21472+6020
STI1051

66' : 21576+6144
MLR 63

66' : 21510+6137
STT 451

68' : 22014+6133
HDS3125

71' : 22049+6100
BU 474

72' : 21462+6100
STI1048

74' : 22005+6145
TDT3286

74' : 21500+5940
STI1055



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.

21556+6040 MLR 509

 
 
21h 55m 35.97s +60° 40' 20.5" P.A. 274.00 sep 1.5 mag 10.40,12.20 Sp B
 
 
Coord 2000 21556+6040 Discov num MLR 509 Comp Coord arcsec 2000 21 55 35.97 +60 40 20.5
Date first 1980 Date last 2016 Obs 8
Pa first 276 Pa last 273.5 P.A. Now (θ) 273.5°
Sep first 1.4 Sep last 1.517 Sep. Now (ρ) 1.517"
Mag pri 10.40 Mag sec 12.20 delta mag (ΔM) 1.8 Spectral class B (blue-white)
Pri motion ra +004 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cepheus Tycho2 4262-01817-1 Gaia DR2 2203958074191591296
 
 
WDS 21556+6040 MLR 509 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Mlr1938 Ma - Muller, P. 1938JO.....21..113M
Mlr1938 +Mc J. Obs. 21, 113, 1938
Mlr1939 - Muller, P. 1939JO.....22..181M
Mlr1939 J. Obs. 22, 181, 1939 (all data published elsewhere)
Mlr1946a Ma - Muller, P. 1946JO.....29...69M
Mlr1946a +Mc J. Obs. 29, 69, 1946
Mlr1946b Mc - Muller, P. (measure by Danjon, A.) 1946JO.....29...69M
Mlr1946b J. Obs. 29, 69, 1946
Mlr1947 Ma - Muller, P. 1947JO.....30..104M
Mlr1947 +Mc J. Obs. 30, 104, 1947
Mlr1948 Md - Muller, P. 1948AnStr...5....1M
Mlr1948 Ann. Obs. Strasbourg 5, pt. 1, 1948
Mlr1948 (Visual measures with double-image micrometer and 16cm refractor. No dates given
Mlr1948 for measures; default date = decade of publication added.)
Mlr1949a Md - Muller, P. 1949AnStr...5....2M
Mlr1949a Ann. Obs. Strasbourg 5, pt. 2, 1949
Mlr1949a (Visual measures with double-image micrometer and 49cm refractor. No dates given
Mlr1949a for measures; default date = decade of publication added.)
Mlr1949b Mc - Muller, P. 1949JO.....32...77M
Mlr1949b J. Obs. 32, 77, 1949
Mlr1949c orb - Muller, P. 1949JO.....32...34M
Mlr1949c J. Obs. 32, 34, 1949
Mlr1950a Mc - Muller, P. 1950JO.....33...93M
Mlr1950a J. Obs. 33, 93, 1950
Mlr1950b Mc - Muller, P. 1950JO.....33..105M
Mlr1950b J. Obs. 33, 105, 1950
Mlr1951a Mc - Muller, P. 1951JO.....34...81M
Mlr1951a J. Obs. 34, 81, 1951
Mlr1951b Md - Muller, P. 1951AnStr...5....3M
Mlr1951b Ann. Obs. Strasbourg 5, pt. 3, 1951
Mlr1951b (Visual measures with double-image micrometer and 16cm refractor. No dates given
Mlr1951b for measures; default date = decade of publication added.)
Mlr1951c Md - Muller, P. 1951AnStr...5....3M
Mlr1951c Ann. Obs. Strasbourg 5, pt. 3, 1951
Mlr1951c (Visual measures with double-image micrometer on 23 and 60cm refractors at
Mlr1951c Pic-du-Midi. See Mlr1950b. No dates listed; default date = decade of publication.)
Mlr1952a Mc - Muller, P. 1952JO.....35...95M
Mlr1952a J. Obs. 35, 95, 1952
Mlr1952b orb - Muller, P. .
Mlr1952b Bull. Astron. Paris 16, 203-212, 1952
Mlr1952c Md - Muller, P. 1952AnStr...5....4M
Mlr1952c Ann. Obs. Strasbourg 5, pt. 4, 1952
Mlr1952c (Visual measures with double-image micrometer and various filters on 16 and 49 cm
Mlr1952c refractors at Strasbourg and 60cm at Pic-du-Midi. Measures listed as "III" are
Mlr1952c tabulated. Some of these measures are incorporated in earlier MLR lists. No dates
Mlr1952c listed; default date = decade of publication.)
Mlr1952d orb - Muller, P. .
Mlr1952d Bull. Astron. Paris 16, 263-275, 1952
Mlr1952e orb - Muller, P. .
Mlr1952e Bull. Astron. Paris 16, 277-282, 1952
Mlr1952f - Muller, P. 1952POHP....2...49M
Mlr1952f Pub. Obs. Haute Provence 2, #49, 1952
Mlr1952g Md - Muller, P. 1952JO.....35..177M
Mlr1952g +Mc J. Obs. 35, 177, 1952
Mlr1953a - Muller, P. 1953JO.....36..104M
Mlr1953a J. Obs. 36, 104, 1953
Mlr1953b Mc - Muller, P. 1953JO.....36..130M
Mlr1953b J. Obs. 36, 130, 1953
Mlr1954a Mc - Muller, P. 1954AJ.....59..388M
Mlr1954a +orb AJ 59, 388, 1954
Mlr1954b orb - Muller, P. 1954JO.....37...61M
Mlr1954b J. Obs. 37, 61-72, 1954
Mlr1954c Mc - Muller, P. 1954JO.....37..125M
Mlr1954c J. Obs. 37, 125, 1954
Mlr1954d - Muller, P. 1954JO.....37..169M
Mlr1954d J. Obs. 37, 169, 1954
Mlr1955a orb - Muller, P. 1955JO.....38...17M
Mlr1955a J. Obs. 38, 17-26, 1955
Mlr1955b orb - Muller, P. 1955JO.....38...58M
Mlr1955b J. Obs. 38, 58-64, 1955
Mlr1955c Mc - Muller, P. 1955JO.....38..221M
Mlr1955c J. Obs. 38, 221, 1955
Mlr1956a Mc - Muller, P. 1956JO.....39..127M
Mlr1956a J. Obs. 39, 127, 1956
Mlr1956b orb - Muller, P. 1956AnStr...5...29M
Mlr1956b Ann. Obs. Strasbourg 5 pt. 29, 1956
Mlr1956c orb - Muller, P. .
Mlr1956c Bull. Astron. Paris 20, 145, 1956
Mlr1956d Mc - Muller, P. 1956JO.....39..181M
Mlr1956d J. Obs. 39, 183, 1956
Mlr1957a orb - Muller, P. .
Mlr1957a Bull. Astron. Paris 21, 131, 1957
Mlr1957b orb - Muller, P. 1957JO.....40...48M
Mlr1957b J. Obs. 40, 48, 1957
Mlr1957c Mc - Muller, P. 1958JO.....40..157M
Mlr1957c J. Obs. 40, 157, 1957
Mlr1958 Mc - Muller, P. 1958JO.....41..109M
Mlr1958 J. Obs. 41, 109, 1958
Mlr1959 Mc - Muller, P. 1959JO.....42...85M
Mlr1959 J. Obs. 42, 85, 1959
Mlr1963 orb - Muller, P. .
Mlr1963 Bull. Astron. Paris 24, 1, 1963
Mlr1966a Mc - Muller, P. 1966JO.....49..335M
Mlr1966a J. Obs. 49, 335, 1966
Mlr1966b orb - Muller, P. 1966IAUDS..39....1M
Mlr1966b Inf. Circ. 39, 1, 1966
Mlr1970 Ma - Muller, P. 1970A&AS....1..399M
Mlr1970 A&AS 1, 399, 1970
Mlr1973a Ma - Muller, P. .
Mlr1973a +Mc Pub. Obs. Paris, June 1973
Mlr1973b orb - Muller, P. 1973IAUDS..59....1M
Mlr1973b Inf. Circ. 59, 1, 1973
Mlr1973c Ma - Muller, P. 1973IAUDS..60....1M
Mlr1973c Inf. Circ. 60, 1, 1973
Mlr1973d Ma - Muller, P. 1973IAUDS..61R...1M
Mlr1973d Inf. Circ. 61, 1, 1973
Mlr1974b Ma - Muller, P. 1974IAUDS..62....1M
Mlr1974b Inf. Circ. 62, 1, 1974
Mlr1974 orb - Muller, P. 1974A&AS...13...99M
Mlr1974 A&AS 13, 99, 1974
Mlr1975a Ma - Muller, P. 1975IAUDS..64....1M
Mlr1975a Inf. Circ. 64, 1, 1975
Mlr1975b Ma - Muller, P. 1975IAUDS..67....1M
Mlr1975b Inf. Circ. 67, 1, 1975
Mlr1976b Ma - Muller, P. 1976IAUDS..70....1M
Mlr1976b Inf. Circ. 70, 1, 1976
Mlr1976 Mc - Muller, P. 1976A&AS...23..205M
Mlr1976 A&AS 23, 205, 1976
Mlr1978a orb - Muller, P. 1978A&AS...32..173M
Mlr1978a A&AS 32, 173, 1978
Mlr1978b Ma - Muller, P. 1978A&AS...33..275M
Mlr1978b A&AS 33, 275, 1978
Mlr1980a Ma - Muller, P. 1980IAUDS..81....1M
Mlr1980a Inf. Circ. 81, 1, 1980
Mlr1980b Ma - Muller, P. 1980IAUDS..82....1M
Mlr1980b Inf. Circ. 82, 1, 1980
Mlr1981 Ma - Muller, P. 1981IAUDS..85....1M
Mlr1981 Inf. Circ. 85, 1, 1981
Mlr1982 Ma - Muller, P. 1982IAUDS..88....1M
Mlr1982 Inf. Circ. 88, 1, 1982
Mlr1983 Ma - Muller, P. 1983IAUDS..90....1M
Mlr1983 Inf. Circ. 90, 1, 1983
Mlr1984 Ma j Muller, P. 1984A&AS...57..467M
Mlr1984 A&AS 57, 467, 1984
Mlr1986 Ma - Muller, P. 1986IAUDS..98....1M
Mlr1986 Inf. Circ. 98, 1, 1986
Mlr1987A Ma - Muller, P. 1987A&A....70..193C
Mlr1987A cited by Couteau (A&A 70, 193, 1987)
Mlr1990 Ma j Muller, P. 1990A&AS...84..619M
Mlr1990 A&AS 84, 619, 1990
Mlr1991b orb - Muller, P. 1991O&T....28...12M
Mlr1991b Obs. et Travaux 28, 12, 1991
Mlr1991 orb - Muller, P. 1991IAUDS.115....1M
Mlr1991 Inf. Circ. 115, 1, 1991
Mlr1993 Ma j Muller, P. 1993A&AS..102..643M
Mlr1993 A&AS 102, 643, 1993
Mlr1993b - Muller, P. 1993O&T....33....9M
Mlr1993b Obs. et Travaux 33, 9, 1993
Mlr1997 Ma - Muller, P. 1997A&AS..126..273M
Mlr1997 A&AS 126, 273, 1997
Mlr2006 Ma - Muller, P. (article by P. Durand & C. Pinlou) 2006O&T....64...16D
Mlr2006 Obs. et Travaux 64, 16, 2006
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21556+6040 MLR 509 2002 5 275 1.6 10.40 12.20 B 215535.97+604020.5
21556+6040 MLR 509 2003 6 275 1.5 10.40 12.20 B 215535.97+604020.5
21556+6040 MLR 509 2008 7 273 1.5 10.40 12.20 B 215535.97+604020.5
21556+6040 MLR 509 2016 8 274 1.5 10.40 12.20 B 215535.97+604020.5

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

 
 
WDS 21556+6040 MLR 509 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21556+6040 MLR 509 : MEASURES
 
 
No records found.

 
 
WDS 21556+6040 : VIRTUAL EYEPIECE
 
 

21556+6040 MLR 509A mag 10.4 Sp B 21556+6040 MLR 509B sep 0.8 P.A. 277.10 mag 12.2 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 21556+6040 : ALADIN DSS IMAGE @ 21h 55m 35.97s +60° 40' 20.5"
 
 
 
 
WDS 21556+6040 MLR 509 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21556+6040 MLR 509 distance=0' 21564+6029 TDT3250 distance=14' 21579+6101 MLR 17AB distance=27' 21579+6101 EVS 45AC distance=27' 21597+6049 BVD 339 distance=32' 21598+6033 A 779 distance=32' 22005+6054 MLR 510 distance=39' 21573+6118 BU 275 distance=40' 21569+5948 WAK 20 distance=50' 21559+5950 STT 537 distance=51' 21565+5948 STT 458AB distance=54' 21565+5948 STT 458AC distance=54' 22020+6016 KPP4261BC distance=54' 21543+6134 ES 1922 distance=55' 22023+6106 BU 695AB distance=56' 22023+6106 WAK 5AC distance=56' 21518+6129 MRI 58BC distance=57' 21518+6129 STI1063AB distance=57' 22033+6051 STF2860AB distance=57' 22033+6051 STF2860AC distance=57' 21506+6024 STI1059 distance=58' 21493+6002 STI1053 distance=61' 21554+5938 JNN 292 distance=62' 21575+5937 MLB 92 distance=65' 21507+5947 STI1058 distance=66' 21472+6020 STI1051 distance=66' 21576+6144 MLR 63 distance=66' 21510+6137 STT 451 distance=66' 22014+6133 HDS3125 distance=68' 22049+6100 BU 474 distance=71' 21462+6100 STI1048 distance=72' 22005+6145 TDT3286 distance=74' 21500+5940 STI1055 distance=74' 22051+6109 STI1087 distance=75' 21542+5927 HJ 3072 distance=75' 21502+6144 TDT3186 distance=75' 21524+5928 TDT3209 distance=76' 21485+6137 D 33AB distance=77' 21485+6137 MLB 176AC distance=77' 22061+6048 TDT3338 distance=78' 22047+6120 ARY 44AB distance=78' 21506+5932 LDS5931 distance=78' 22047+6120 ARY 44BC distance=78' 21549+6159 OSO 161AB distance=80' 21549+6159 OSO 161AC distance=80' 21549+6159 OSO 161AD distance=80' 21549+6159 OSO 161AE distance=80' 21599+5928 STI1078 distance=80' 22033+5944 STI1083 distance=81' 22039+5949 STT 461EF distance=81' 22039+5949 STT 461CD distance=81' 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 21556+6040 MLR 509 274 1.5
Show 21564+6029 TDT3250 295 0.6 14
Show 21579+6101 MLR 17 AB 22 0.2 27
Show 21579+6101 EVS 45 AC 42 18.2 27
Show 21597+6049 BVD 339 246 13.3 32
Show 21598+6033 A 779 247 0.2 32
Show 22005+6054 MLR 510 304 0.8 39
Show 21573+6118 BU 275 170 0.4 40
Show 21569+5948 WAK 20 258 4.0 50
Show 21559+5950 STT 537 203 1.9 51
Show 21565+5948 STT 458 AB 348 1.0 54
Show 21565+5948 STT 458 AC 23 21.5 54
Show 22020+6016 KPP4261 BC 265 5.5 54
Show 21543+6134 ES 1922 164 4.6 55
Show 22023+6106 BU 695 AB 148 3.1 56
Show 22023+6106 WAK 5 AC 201 14.2 56
Show 21518+6129 MRI 58 BC 98 2.6 57
Show 21518+6129 STI1063 AB 88 9.8 57
Show 22033+6051 STF2860 AB 257 13.3 57
Show 22033+6051 STF2860 AC 279 27.4 57
Show 21506+6024 STI1059 156 3.3 58
Show 21493+6002 STI1053 13 6.8 61
Show 21554+5938 JNN 292 76 0.4 62
Show 21575+5937 MLB 92 55 5.3 65
Show 21507+5947 STI1058 218 3.0 66
Show 21472+6020 STI1051 2 5.9 66
Show 21576+6144 MLR 63 216 1.0 66
Show 21510+6137 STT 451 219 4.2 66
Show 22014+6133 HDS3125 3 0.2 68
Show 22049+6100 BU 474 342 17.9 71
Show 21462+6100 STI1048 117 13.8 72
Show 22005+6145 TDT3286 95 0.6 74
Show 21500+5940 STI1055 95 13.1 74
Show 22051+6109 STI1087 329 14.2 75
Show 21542+5927 HJ 3072 76 13.0 75
Show 21502+6144 TDT3186 153 0.8 75
Show 21524+5928 TDT3209 208 2.0 76
Show 21485+6137 D 33 AB 131 3.5 77
Show 21485+6137 MLB 176 AC 277 10.6 77
Show 22061+6048 TDT3338 185 0.4 78
Show 22047+6120 ARY 44 AB 347 80.0 78
Show 21506+5932 LDS5931 258 3.6 78
Show 22047+6120 ARY 44 BC 342 81.5 78
Show 21549+6159 OSO 161 AB 335 14.8 80
Show 21549+6159 OSO 161 AC 36 21.8 80
Show 21549+6159 OSO 161 AD 19 19.8 80
Show 21549+6159 OSO 161 AE 315 20.4 80
Show 21599+5928 STI1078 199 10.8 80
Show 22033+5944 STI1083 99 10.1 81
Show 22039+5949 STT 461 EF 34 193.1 81
Show 22039+5949 STT 461 CD 96 118.4 81

 
 
WDS 21556+6040 : COMPONENTS
 
 
  A
B pa=277.1°
sep=0.75"
 
 
21556+6040 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 215535.97+604020.5 Mag 10.4 Spectral class B (blue-white)
PmRA 4.00 PmDE -3.0 Tycho2 4262-01817-1
Tycho2
Tycho2 4262-01817-1 Pflag RAmdeg 328.89986852 DEmdeg 60.67237866
PmRA 3.8 PmDE -2.5 E RAmdeg 22 E DEmdeg 23
E pmRA 2.6 E pmDE 2.5 EpRAm 1989.53 EpDEm 1989.23
Num 5 Q RAmdeg 2.4 Q DEmdeg 1.3 Q pmRA 2.3
Q pmDE 1.3 BTmag 10.999 E BTmag 0.046 VTmag 10.399
E VTmag 0.038 Prox 999 TYC T HIP
CCDM RAdeg 328.89987306 DEdeg 60.67237694 EpRA 1990 1.66
EpDE 1990 1.77 E RAdeg 25.1 E DEdeg 26.8 Posflg
Corr 0.1
 
 
21556+6040 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 215535.87+604020.6 Mag 12.2 Calc delta mag 1.8
Calc coord yes