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Current system
20581+4043
COU 2430 AB


Nearby doubles
17' : 20576+4058
A 400

29' : 20572+4110
HDS2986

29' : 21002+4027
TDT2688

35' : 20599+4016
ENG 79AB

39' : 20546+4042
ES 1685AB

39' : 20585+4121
BLL 53

39' : 21014+4037
HDS2995

42' : 20555+4112
ES 1686

42' : 20569+4122
LDS2471

43' : 20544+4042
STT 420

46' : 21000+4004
KUI 103AB

46' : 21019+4055
TDT2704

47' : 20588+3957
TDT2670

48' : 20556+4004
TDT2634

52' : 20542+4111
ES 1684

53' : 20596+3953
SEI1358

55' : 20591+3950
BKO 479

56' : 21010+3959
A 1438

57' : 20539+4115
KPP1503

59' : 20592+3946
BKO 481

59' : 20558+3951
LDS2469

59' : 20590+3945
SEI1349

61' : 20591+3944
BKO 480

62' : 20577+3943
COU2429

62' : 21032+4024
ES 1986

63' : 20587+3942
BKO 477



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.

20581+4043 COU 2430 AB

 
 
20h 58m 04.08s +40° 43' 05.8" P.A. 254.00 sep 0.4 mag 9.80,10.40 Sp A2
 
 
Coord 2000 20581+4043 Discov num COU2430 Comp AB Coord arcsec 2000 20 58 04.08 +40 43 05.8
Date first 1986 Date last 2014 Obs 5
Pa first 252 Pa last 253.6 P.A. Now (θ) 253.6°
Sep first 0.4 Sep last 0.416 Sep. Now (ρ) 0.416"
Mag pri 9.80 Mag sec 10.40 delta mag (ΔM) 0.6 Spectral class A2 (white)
Pri motion ra -001 Sec motion ra
Pri motion dec -002 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20581+4043 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 58 04 +40 43 06 COU 2430 AB 2014 5 254 0.4 9.80 10.40 0.60 <===
Show 20 58 04 +40 43 06 COU 2430 AB,C 2012 2 176 3.0 9.80 14.80 5.00
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3171-00919-1
 
 
WDS 20581+4043 COU 2430 AB : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Cou1952a Ma - Couteau, P. 1952JO.....35..101C
Cou1952a +Mc J. Obs. 35, 101, 1952
Cou1952b Ma - Couteau, P. 1952JO.....35..181C
Cou1952b J. Obs. 35, 181, 1952
Cou1953a Ma - Couteau, P. 1953JO.....36...37C
Cou1953a J. Obs. 36, 37, 1953
Cou1953b - Couteau, P. 1953JO.....36...44C
Cou1953b J. Obs. 36, 44, 1953
Cou1953c Ma - Couteau, P. 1953JO.....36...46C
Cou1953c J. Obs. 36, 46, 1953
Cou1953d Ma - Couteau, P. 1953JO.....36..131C
Cou1953d J. Obs. 36, 131, 1953
Cou1953e Mc - Couteau, P. 1953JO.....37...37C
Cou1953e J. Obs. 37, 37, 1953
Cou1955a Ma - Couteau, P. 1955JO.....38....1C
Cou1955a J. Obs. 38, 1, 1955
Cou1955b - Couteau, P. 1955JO.....38...27C
Cou1955b J. Obs. 38, 27, 1955
Cou1955c Ma - Couteau, P. 1955JO.....38..238C
Cou1955c +Mc J. Obs. 38, 238, 1955
Cou1956 Ma - Couteau, P. 1956JO.....39..137C
Cou1956 +Mc J. Obs. 39, 137, 1956
Cou1957a Ma j Couteau, P. 1957JO.....40..113C
Cou1957a +Mc J. Obs. 40, 113, 1957
Cou1957b orb - Couteau, P. 1957JO.....40..126C
Cou1957b J. Obs. 40, 126, 1957
Cou1958a M+ - Couteau, P. 1958JO.....41....1C
Cou1958a +Pa J. Obs. 41, 1-14, 1958
Cou1958b orb - Couteau, P. 1958JO.....41...15C
Cou1958b J. Obs. 41, 15-19, 1958
Cou1958c Ma j Couteau, P. 1958JO.....41...81C
Cou1958c +Mc J. Obs. 41, 81-90, 1958
Cou1958d orb - Couteau, P. 1958JO.....41...91C
Cou1958d J. Obs. 41, 91-96, 1958
Cou1959a Ma - Couteau, P. 1959JO.....42...17C
Cou1959a +Mc J. Obs. 42, 17, 1959
Cou1959b orb - Couteau, P. 1959JO.....42...30C
Cou1959b J. Obs. 42, 30, 1959
Cou1960a M+ - Couteau, P. 1960JO.....43....1C
Cou1960a +orb J. Obs. 43, 1, 1960
Cou1960b orb - Couteau, P. .
Cou1960b Bull. Astron. Paris 23, 127, 1960
Cou1960c orb - Couteau, P. 1960JO.....43...13C
Cou1960c J. Obs. 43, 13, 1960
Cou1961a Ma - Couteau, P. 1961JO.....44...41C
Cou1961a +Mc J. Obs. 44, 41, 1961
Cou1961b orb - Couteau, P. 1961JO.....44...54C
Cou1961b J. Obs. 44, 54-60, 1961
Cou1961c orb - Couteau, P. 1961IAUDS..23....1C
Cou1961c Inf. Circ. 23, 1, 1961
Cou1962a Ma j Couteau, P. 1962JO.....45...43C
Cou1962a +Mc J. Obs. 45, 43, 1962
Cou1962b Ma j Couteau, P. 1962JO.....45..225C
Cou1962b +Mb J. Obs. 45, 225, 1962
Cou1962c orb - Couteau, P. .
Cou1962c Bull. Astron. Paris 24, 15, 1962
Cou1962d orb - Couteau, P. 1962IAUDS..26....1C
Cou1962d Inf. Circ. 26, 1, 1962
Cou1962e orb - Couteau, P. 1962JO.....45...37C
Cou1962e J. Obs. 45, 37, 1962
Cou1962F Ma - Couteau, P. 1962QB821.J64......
Cou1962F cited by Jonckheere (General Cat. of Double Stars, Marseille, 1962)
Cou1963a Ma j Couteau, P. 1963JO.....46..155C
Cou1963a +Mc J. Obs. 46, 155, 1963
Cou1963b orb - Couteau, P. 1963JO.....46..172C
Cou1963b J. Obs. 46, 172, 1963
Cou1963c orb - Couteau, P. .
Cou1963c Bull. Astron. Paris 24, 24, 1963
Cou1964 M+ j Couteau, P. 1964JO.....47..229C
Cou1964 +Pa J. Obs. 47, 229, 1964
Cou1965a orb - Couteau, P. 1965JO.....48...33C
Cou1965a J. Obs. 48, 33, 1965
Cou1965b orb - Couteau, P. 1965JO.....48...35C
Cou1965b J. Obs. 48, 35, 1965
Cou1966a Ma - Couteau, P. 1966JO.....49..221C
Cou1966a +Pa J. Obs. 49, 221, 1966
Cou1966b M+ j Couteau, P. 1966JO.....49..341C
Cou1966b +Pa J. Obs. 49, 341, 1966
Cou1966c orb - Couteau, P. 1966JO.....49..369C
Cou1966c J. Obs. 49, 369, 1966
Cou1967a Ma - Couteau, P. 1967JO.....50...33C
Cou1967a +Pa J. Obs. 50, 33-39, 1967
Cou1967b Ma - Couteau, P. 1967JO.....50...41C
Cou1967b J. Obs. 50, 41-57, 1967
Cou1967c orb - Couteau, P. 1967IAUDS..42....1C
Cou1967c Inf. Circ. 42, 1, 1967
Cou1968a Ma j Couteau, P. 1968JO.....51...31C
Cou1968a J. Obs. 51, 31, 1968
Cou1968b Ma j Couteau, P. 1968JO.....51..337C
Cou1968b J. Obs. 51, 337, 1968
Cou1970a Ma j Couteau, P. 1970A&AS....1..105C
Cou1970a +Pa A&AS 1, 105, 1970
Cou1970b Ma j Couteau, P. 1970A&AS....1..419C
Cou1970b +Pa A&AS 1, 419, 1970
Cou1970c Ma j Couteau, P. 1970A&AS....3...51C
Cou1970c +Pa A&AS 3, 51, 1970
Cou1971 orb - Couteau, P. & Morel, P.J. 1971IAUDS..53....1C
Cou1971 Inf. Circ. 53, 1, 1971
Cou1972a Ma j Couteau, P. 1972A&AS....5..167C
Cou1972a +Pa A&AS 5, 167, 1972
Cou1972b orb - Couteau, P. & Morel, P.J. 1972A&AS....5..175C
Cou1972b A&AS 5, 175, 1972
Cou1972c orb - Couteau, P. 1972A&AS....5..181C
Cou1972c A&AS 5, 181, 1972
Cou1972d Ma j Couteau, P. 1972A&AS....6..177C
Cou1972d A&AS 6, 177, 1972
Cou1972e Ma j Couteau, P. 1972A&AS....6..185C
Cou1972e A&AS 6, 185, 1972
Cou1972f Ma j Couteau, P. 1972A&AS....6..419C
Cou1972f +Pa A&AS 6, 419, 1972
Cou1973a Ma j Couteau, P. 1973A&AS...10..273C
Cou1973a +Pa A&AS 10, 273, 1973
Cou1973b orb - Couteau, P. 1973A&AS...12..127C
Cou1973b A&AS 12, 127, 1973
Cou1973c Ma - Couteau, P. 1973A&AS...12..137C
Cou1973c +Pa A&AS 12, 137, 1973
Cou1973d orb - Couteau, P. 1973IAUDS..59....1C
Cou1973d Inf. Circ. 59, 1, 1973
Cou1974a Ma - Couteau, P. 1974A&AS...15..253C
Cou1974a A&AS 15, 253, 1974
Cou1974b orb - Couteau, P. 1974IAUDS..62....1C
Cou1974b Inf. Circ. 62, 1, 1974
Cou1975a Ma j Couteau, P. 1975A&AS...20..379C
Cou1975a A&AS 20, 379, 1975
Cou1975b Ma j Couteau, P. 1975A&AS...20..391C
Cou1975b A&AS 20, 391, 1975
Cou1975c orb - Couteau, P. 1975A&AS...20..411C
Cou1975c A&AS 20, 411, 1975
Cou1976a Ma - Couteau, P. 1976A&AS...24..495C
Cou1976a A&AS 24, 495, 1976
Cou1976b Ma - Couteau, P. 1976A&AS...29..249C
Cou1976b A&AS 29, 249, 1976
Cou1976c orb - Couteau, P. 1976IAUDS..70....1C
Cou1976c Inf. Circ. 70, 1, 1976
Cou1979a Ma j Couteau, P. 1979A&AS...35..197C
Cou1979a A&AS 35, 197, 1979
Cou1979b Ma j Couteau, P. 1979A&AS...36...11C
Cou1979b A&AS 36, 11, 1979
Cou1981a Ma - Couteau, P. 1981A&AS...43...79C
Cou1981a A&AS 43, 79, 1981
Cou1981b orb - Couteau. P. 1981IAUDS..83....1C
Cou1981b Inf. Circ. 83, 1, 1981
Cou1982a Ma - Couteau, P. 1982A&AS...48..443C
Cou1982a A&AS 48, 443, 1982
Cou1982b Ma j Couteau, P. 1982A&AS...50...49C
Cou1982b A&AS 50, 49, 1982
Cou1982c orb - Couteau, P. 1982IAUDS..86....1C
Cou1982c Inf. Circ. 86, 1, 1982
Cou1982d orb - Couteau, P. & Morel, P.J. 1982A&A...105..323C
Cou1982d A&A 105, 323, 1982
Cou1983a Ma - Couteau, P. 1983A&AS...53..441C
Cou1983a A&AS 53, 441, 1983
Cou1983b orb - Couteau, P. 1983IAUDS..90....1C
Cou1983b Inf. Circ. 90, 1, 1983
Cou1983c orb - Couteau, P. 1983IAUDS..91R...1C
Cou1983c Inf. Circ. 91, 1, 1983
Cou1984a Ma j Couteau, P. 1984PASP...96..174C
Cou1984a +Mb PASP 96, 174, 1984
Cou1984b orb - Couteau, P. 1984A&AS...57..171C
Cou1984b A&AS 57, 171, 1984
Cou1984c orb - Couteau, P. 1984IAUDS..92....1C
Cou1984c Inf. Circ. 92, 1, 1984
Cou1984d orb - Couteau, P. 1984IAUDS..94....1C
Cou1984d Inf. Circ. 94, 1, 1984
Cou1985a Ma j Couteau, P. 1985A&AS...60..237C
Cou1985a A&AS 60, 237, 1985
Cou1985b Ma j Couteau, P. 1985A&AS...60..241C
Cou1985b A&AS 60, 241, 1985
Cou1985c orb - Couteau, P. 1985IAUDS..95....1C
Cou1985c Inf. Circ. 95, 1, 1985
Cou1985d orb - Couteau, P. 1985IAUDS..97....1C
Cou1985d Inf. Circ. 97, 1, 1985
Cou1986a orb - Couteau, P. 1986IAUDS..98....1C
Cou1986a Inf. Circ. 98, 1, 1986
Cou1986b orb - Couteau, P. 1986A&AS...65..505C
Cou1986b A&AS 65, 505, 1986
Cou1987a Ma - Couteau, P. 1987A&AS...67...13C
Cou1987a A&AS 67, 13, 1987
Cou1987b Ma j Couteau, P. 1987A&AS...70..193C
Cou1987b +Mb A&AS 70, 193, 1987
Cou1987c orb - Couteau, P. 1987A&AS...71..569C
Cou1987c A&AS 71, 569, 1987
Cou1987d orb - Couteau, P. 1987IAUDS.101....1C
Cou1987d Inf. Circ. 101, 1, 1987
Cou1987e orb - Couteau, P. 1987IAUDS.102....1C
Cou1987e Inf. Circ. 102, 1, 1987
Cou1988a Mb j Couteau, P. (Couteau & Ling) 1988A&AS...73..449C
Cou1988a A&AS 73, 449, 1988
Cou1988b Ma - Couteau, P. 1988A&AS...75..163C
Cou1988b A&AS 75, 163, 1988
Cou1988c orb - Couteau, P. 1988IAUDS.104....1C
Cou1988c Inf. Circ. 104, 1, 1988
Cou1988d orb - Couteau, P. 1988IAUDS.105....1C
Cou1988d Inf. Circ. 105, 1, 1988
Cou1989a Mb j Couteau, P. (Couteau et al.) 1989A&AS...78..483C
Cou1989a A&AS 78, 483, 1989
Cou1989b Ma j Couteau, P. 1989A&AS...79..385C
Cou1989b +Mb A&AS 79, 385, 1989
Cou1989c orb - Couteau, P. 1989A&AS...80..373C
Cou1989c A&AS 80, 373, 1989
Cou1989d orb - Couteau, P. 1989IAUDS.107....1C
Cou1989d Inf. Circ. 107, 1, 1989
Cou1989e orb - Couteau, P. 1989IAUDS.108....1C
Cou1989e Inf. Circ. 108, 1, 1989
Cou1990a orb - Couteau, P. 1990IAUDS.111....1C
Cou1990a Inf. Circ. 111, 1, 1990
Cou1990b orb - Couteau, P. 1990IAUDS.112....1C
Cou1990b Inf. Circ. 112, 1, 1990
Cou1990c Ma j Couteau, P. 1990A&AS...83..331C
Cou1990c +Mb A&AS 83, 331, 1990
Cou1991a Ma j Couteau, P. (Couteau & Ling) 1991A&AS...88..497C
Cou1991a +Mb A&AS 88, 497, 1991
Cou1991b orb - Couteau, P. 1991IAUDS.113Q...1C
Cou1991b Inf. Circ. 113, 1, 1991
Cou1992 Ma j Couteau, P. (Ling & Couteau) 1992A&AS...95..423C
Cou1992 +Mb A&AS 95, 423, 1992
Cou1993a Ma - Couteau, P. 1993A&AS...97..511C
Cou1993a A&AS 97, 511, 1993
Cou1993b orb - Couteau, P. 1993IAUDS.119....2C
Cou1993b Inf. Circ. 119, 2, 1993
Cou1993c orb - Couteau, P. 1993IAUDS.120....2C
Cou1993c Inf. Circ. 120, 2, 1993
Cou1993d Ma j Couteau, P. (Couteau et al.) 1993A&AS..100..305C
Cou1993d A&AS 100, 305, 1993
Cou1994 Ma j Couteau, P. (Couteau & Gili) 1994A&AS..106..377C
Cou1994 A&AS 106, 377, 1994
Cou1996 orb - Couteau, P. 1996IAUDS.128....1C
Cou1996 Inf. Circ. 128, 1, 1996
Cou1997a orb - Couteau, P. 1997IAUDS.131....1C
Cou1997a Inf. Circ. 131, 1, 1997
Cou1997b Ma j Couteau, P. 1997A&AS..126....1C
Cou1997b A&AS 126, 1, 1997
Cou1999a Ma - Couteau, P. 1999IAUDS.138....2C
Cou1999a Inf. Circ. 138, 2, 1999
Cou1999b orb - Couteau, P. .
Cou1999b Cat. de 2700 Etoiles Doubles "COU", 1999 Obs. de la Cote d'Azur, 3rd ed.
Cou2002 Ma j Couteau, P. .
Cou2002 Updated electronic version of Couteau 2700 Cat. (Cou1999b)
Cou2002 (all measures prior to 2000.5 also in Cou2002b)
Cou2002b Ma j Couteau, P. 2002O&T....55....2C
Cou2002b Obs. et Travaux 55, 2, 2002 (most measures also in Cou2002)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20581+4043 COU2430 AB 2012 4 253 0.4 9.80 10.40 A2 205804.08+404305.8
20581+4043 COU2430 AB 2014 5 254 0.4 9.80 10.40 A2 205804.08+404305.8

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WDS 20581+4043 COU 2430 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20581+4043 COU 2430 AB : MEASURES
 
 
No records found.

 
 
WDS 20581+4043 : VIRTUAL EYEPIECE
 
 

20581+4043 COU2430A mag 9.8 Sp A2 20581+4043 COU2430B sep 0.3 P.A. 248.80 mag 10.4 20581+4043 COU2430C sep 3.0 P.A. 177.10 mag 14.8 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20581+4043 : ALADIN DSS IMAGE @ 20h 58m 04.08s +40° 43' 05.8"
 
 
 
 
WDS 20581+4043 COU 2430 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20581+4043 COU2430AB distance=0' 20576+4058 A 400 distance=17' 20572+4110 HDS2986 distance=29' 21002+4027 TDT2688 distance=29' 20599+4016 HDS2989Da,Db distance=32' 20599+4016 RAO 72DE distance=32' 20599+4016 COU2431Aa,Ab distance=35' 20599+4016 ENG 79AB distance=35' 20599+4016 LEP 98AD distance=35' 20599+4016 BUP 221AC distance=35' 20599+4016 LSC 1Aa1,2 distance=35' 20599+4016 BUP 221BC distance=36' 20546+4042 ES 1685BC distance=38' 20599+4016 SEI1363CR distance=39' 20546+4042 ES 1685AB distance=39' 20585+4121 BLL 53 distance=39' 21014+4037 HDS2995 distance=39' 20555+4112 ES 1686 distance=42' 20569+4122 LDS2471 distance=42' 20544+4042 STT 420 distance=43' 21000+4004 KUI 103AB distance=46' 21000+4004 RAO 689AC distance=46' 21019+4055 TDT2704 distance=46' 20588+3957 TDT2670 distance=47' 20556+4004 TDT2634 distance=48' 20542+4111 ES 1684 distance=52' 20596+3953 SEI1358 distance=53' 20591+3950 BKO 479 distance=55' 21010+3959 A 1438 distance=56' 20539+4115 KPP1503 distance=57' 20592+3946 BKO 481 distance=59' 20558+3951 LDS2469 distance=59' 20590+3945 SEI1349 distance=59' 20591+3944 BKO 480 distance=61' 20577+3943 COU2429 distance=62' 21032+4024 ES 1986 distance=62' 20587+3942 BKO 477 distance=63' 20592+3941 SEI1351AB distance=63' 20592+3941 TOB 206AC distance=63' 21037+4053 LDS2485 distance=65' 20526+4024 GRV 391 distance=65' 21027+4130 LDS2482 distance=66' 21012+3949 SEI1369 distance=66' 20553+3944 SEI1315 distance=68' 21014+3948 SEI1370 distance=68' 20555+3940 MLB 783 distance=69' 21008+3940 SEI1364 distance=71' 20551+3941 MLB 886 distance=71' 20591+3932 TOB 205 distance=73' 21031+3959 LDS2483AB distance=73' 20589+3931 SEI1348 distance=73' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 20581+4043 COU2430 AB 254 0.4
Show 20581+4043 COU2430 AB,C 176 3.0
Show 20576+4058 A 400 69 1.9 17
Show 20572+4110 HDS2986 176 0.1 29
Show 21002+4027 TDT2688 104 0.5 29
Show 20599+4016 HDS2989 Da,Db 143 0.1 32
Show 20599+4016 RAO 72 DE 118 19.8 32
Show 20599+4016 COU2431 Aa,Ab 205 2.2 35
Show 20599+4016 ENG 79 AB 219 165.9 35
Show 20599+4016 LEP 98 AD 258 999.9 35
Show 20599+4016 BUP 221 AC 154 210.3 35
Show 20599+4016 LSC 1 Aa1,2 257 0.0 35
Show 20599+4016 BUP 221 BC 107 203.7 36
Show 20546+4042 ES 1685 BC 74 2.8 38
Show 20599+4016 SEI1363 CR 37 8.7 39
Show 20546+4042 ES 1685 AB 73 24.2 39
Show 20585+4121 BLL 53 352 169.0 39
Show 21014+4037 HDS2995 97 0.1 39
Show 20555+4112 ES 1686 196 7.7 42
Show 20569+4122 LDS2471 43 3.2 42
Show 20544+4042 STT 420 2 5.8 43
Show 21000+4004 KUI 103 AB 58 0.9 46
Show 21000+4004 RAO 689 AC 300 2.4 46
Show 21019+4055 TDT2704 316 1.1 46
Show 20588+3957 TDT2670 6 0.5 47
Show 20556+4004 TDT2634 54 1.9 48
Show 20542+4111 ES 1684 277 7.9 52
Show 20596+3953 SEI1358 273 30.9 53
Show 20591+3950 BKO 479 9 12.4 55
Show 21010+3959 A 1438 257 0.3 56
Show 20539+4115 KPP1503 94 11.3 57
Show 20592+3946 BKO 481 204 11.5 59
Show 20558+3951 LDS2469 2 3.3 59
Show 20590+3945 SEI1349 160 27.9 59
Show 20591+3944 BKO 480 236 11.1 61
Show 20577+3943 COU2429 209 0.8 62
Show 21032+4024 ES 1986 21 4.2 62
Show 20587+3942 BKO 477 8 7.6 63
Show 20592+3941 SEI1351 AB 256 17.5 63
Show 20592+3941 TOB 206 AC 71 38.4 63
Show 21037+4053 LDS2485 226 15.3 65
Show 20526+4024 GRV 391 144 59.5 65
Show 21027+4130 LDS2482 53 3.0 66
Show 21012+3949 SEI1369 309 4.5 66
Show 20553+3944 SEI1315 281 29.0 68
Show 21014+3948 SEI1370 141 20.7 68
Show 20555+3940 MLB 783 288 5.6 69
Show 21008+3940 SEI1364 114 12.1 71
Show 20551+3941 MLB 886 141 7.0 71
Show 20591+3932 TOB 205 203 14.5 73
Show 21031+3959 LDS2483 AB 41 30.6 73

 
 
WDS 20581+4043 : COMPONENTS
 
 
  A B
B pa=248.8°
sep=0.32"
 
C pa=177.1°
sep=3.00"
pa=171.1°
sep=2.92"
 
 
20581+4043 A
 
 
Coord arcsec 2000 205804.08+404305.8 Mag 9.8 Spectral class A2 (white) PmRA -1.00
PmDE -2.0 Tycho2 3171-00919-1
Tycho2
Tycho2 3171-00919-1 Pflag RAmdeg 314.51698408 DEmdeg 40.71830019
PmRA -4.7 PmDE -5.7 E RAmdeg 10 E DEmdeg 9
E pmRA 1.0 E pmDE 1.0 EpRAm 1990.19 EpDEm 1990.58
Num 8 Q RAmdeg 1.1 Q DEmdeg 0.7 Q pmRA 1.1
Q pmDE 0.6 BTmag 9.564 E BTmag 0.020 VTmag 9.290
E VTmag 0.017 Prox 999 TYC T HIP
CCDM RAdeg 314.51699833 DEdeg 40.71831278 EpRA 1990 1.61
EpDE 1990 1.75 E RAdeg 10.0 E DEdeg 8.8 Posflg
Corr 0.0
 
 
20581+4043 B
 
 
Coord arcsec 2000 205804.05+404305.7 Mag 10.4 Calc delta mag 0.6 Calc coord yes
 
 
20581+4043 C
 
 
Coord arcsec 2000 205804.09+404302.8 Mag 14.8 Calc delta mag 5 Calc coord yes