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Doubles in session


Current system
20421+4125
COU 2420


Nearby doubles
9' : 20428+4123
RAO 619

12' : 20428+4132
ES 1571

18' : 20434+4131
HJ 1571

31' : 20447+4131
MLB 25

35' : 20413+4051
COU2419

35' : 20444+4103
COU2423AB

38' : 20390+4109
TDT2451

39' : 20417+4202
ES 1570

44' : 20422+4041
MLB 23

47' : 20396+4202
A 399

48' : 20442+4206
ES 1572

49' : 20429+4036
MLB 24

53' : 20446+4041
HJ 1574

54' : 20446+4040
HJ 1573

58' : 20396+4035
STT 410AB

58' : 20396+4215
GNS 11

59' : 20440+4030
SLN 85

61' : 20432+4026
COU2421

61' : 20399+4221
FMR 159

63' : 20366+4139
TDT2416

64' : 20444+4027
TDT2510

64' : 20436+4024
DAM1256

67' : 20480+4126
ES 1681

68' : 20408+4231
CBL 84

71' : 20420+4015
A 1433

71' : 20358+4123
NML 1



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.

20421+4125 COU 2420

 
 
20h 42m 04.34s +41° 24' 46.5" P.A. 90.00 sep 0.5 mag 9.85,10.26 Sp A0
 
 
Coord 2000 20421+4125 Discov num COU2420 Comp Coord arcsec 2000 20 42 04.34 +41 24 46.5
Date first 1987 Date last 2016 Obs 7
Pa first 86 Pa last 89.6 P.A. Now (θ) 89.6°
Sep first 0.4 Sep last 0.509 Sep. Now (ρ) 0.509"
Mag pri 9.85 Mag sec 10.26 delta mag (ΔM) 0.41 Spectral class A0 (white)
Pri motion ra +007 Sec motion ra +007
Pri motion dec -001 Sec motion dec -001
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3174-00584-1 Gaia DR2 2066155521672514432
 
 
WDS 20421+4125 COU 2420 : 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
20421+4125 COU2420 2007 3 83 0.5 9.85 10.26 A0 204204.34+412446.5
20421+4125 COU2420 2011 4 87 0.5 9.85 10.26 A0 204204.34+412446.5
20421+4125 COU2420 2016 5 90 0.5 9.85 10.26 A0 204204.34+412446.5

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

 
 
WDS 20421+4125 COU 2420 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20421+4125 COU 2420 : MEASURES
 
 
No records found.

 
 
WDS 20421+4125 : VIRTUAL EYEPIECE
 
 

20421+4125 COU2420A mag 9.85 Sp A0 20421+4125 COU2420B sep 0.4 P.A. 89.50 mag 10.26 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20421+4125 : ALADIN DSS IMAGE @ 20h 42m 04.34s +41° 24' 46.5"
 
 
 
 
WDS 20421+4125 COU 2420 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20421+4125 COU2420 distance=0' 20428+4123 RAO 619 distance=9' 20428+4132 ES 1571 distance=12' 20434+4131 HJ 1571 distance=18' 20447+4131 MLB 25 distance=31' 20413+4051 COU2419 distance=35' 20444+4103 COU2423AB distance=35' 20444+4103 GRV 375AC distance=35' 20390+4109 TDT2451 distance=38' 20417+4202 ES 1570 distance=39' 20422+4041 MLB 23 distance=44' 20396+4202 A 399 distance=47' 20442+4206 ES 1572 distance=48' 20429+4036 MLB 24 distance=49' 20446+4041 HJ 1574 distance=53' 20446+4040 HJ 1573 distance=54' 20396+4035 STT 410AB distance=58' 20396+4035 STT 410AB,C distance=58' 20396+4035 STT 410AB,D distance=58' 20396+4215 GNS 11 distance=58' 20440+4030 SLN 85 distance=59' 20432+4026 COU2421 distance=61' 20399+4221 FMR 159 distance=61' 20366+4139 TDT2416 distance=63' 20444+4027 TDT2510 distance=64' 20436+4024 DAM1256 distance=64' 20480+4126 ES 1681 distance=67' 20408+4231 CBL 84 distance=68' 20420+4015 A 1433 distance=71' 20358+4123 NML 1 distance=71' 20425+4235 GRV 369 distance=71' 20454+4023 OSO 133AB distance=72' 20454+4023 OSO 133AC distance=72' 20454+4023 OSO 133AD distance=72' 20454+4023 OSO 133AE distance=72' 20426+4013 TDT2488 distance=72' 20387+4024 ES 1979 distance=73' 20361+4056 CAN 23AB distance=74' 20361+4056 CAN 23AC distance=74' 20361+4056 CAN 23AD distance=74' 20361+4056 CAN 23AE distance=74' 20361+4056 CAN 23AF distance=74' 20477+4204 BU 268 distance=75' 20479+4204 ES 1573 distance=76' 20392+4017 ES 1980 distance=76' 20405+4010 TOB 196BC distance=77' 20405+4010 SEI1214AB distance=77' 20382+4022 TDT2439 distance=77' 20357+4053 BRT2266 distance=79' 20476+4038 CNT 9 distance=79' 20456+4014 TDT2519 distance=81' 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 20421+4125 COU2420 90 0.5
Show 20428+4123 RAO 619 141 0.6 9
Show 20428+4132 ES 1571 39 7.4 12
Show 20434+4131 HJ 1571 59 7.3 18
Show 20447+4131 MLB 25 207 5.7 31
Show 20413+4051 COU2419 69 0.8 35
Show 20444+4103 COU2423 AB 180 0.3 35
Show 20444+4103 GRV 375 AC 197 31.4 35
Show 20390+4109 TDT2451 105 0.7 38
Show 20417+4202 ES 1570 118 4.7 39
Show 20422+4041 MLB 23 41 7.6 44
Show 20396+4202 A 399 82 0.9 47
Show 20442+4206 ES 1572 141 5.8 48
Show 20429+4036 MLB 24 175 5.9 49
Show 20446+4041 HJ 1574 278 7.4 53
Show 20446+4040 HJ 1573 274 9.8 54
Show 20396+4035 STT 410 AB 3 0.9 58
Show 20396+4035 STT 410 AB,C 70 68.6 58
Show 20396+4035 STT 410 AB,D 327 106.6 58
Show 20396+4215 GNS 11 182 3.7 58
Show 20440+4030 SLN 85 203 9.1 59
Show 20432+4026 COU2421 110 0.3 61
Show 20399+4221 FMR 159 76 135.7 61
Show 20366+4139 TDT2416 352 0.7 63
Show 20444+4027 TDT2510 157 0.9 64
Show 20436+4024 DAM1256 106 9.6 64
Show 20480+4126 ES 1681 146 2.1 67
Show 20408+4231 CBL 84 160 16.0 68
Show 20420+4015 A 1433 24 0.8 71
Show 20358+4123 NML 1 16 0.1 71
Show 20425+4235 GRV 369 26 24.8 71
Show 20454+4023 OSO 133 AB 114 12.0 72
Show 20454+4023 OSO 133 AC 236 11.7 72
Show 20454+4023 OSO 133 AD 67 21.8 72
Show 20454+4023 OSO 133 AE 8 22.4 72
Show 20426+4013 TDT2488 138 0.5 72
Show 20387+4024 ES 1979 303 7.6 73
Show 20361+4056 CAN 23 AB 333 4.8 74
Show 20361+4056 CAN 23 AC 245 5.4 74
Show 20361+4056 CAN 23 AD 175 6.6 74
Show 20361+4056 CAN 23 AE 113 7.5 74
Show 20361+4056 CAN 23 AF 329 14.0 74
Show 20477+4204 BU 268 201 0.4 75
Show 20479+4204 ES 1573 39 5.0 76
Show 20392+4017 ES 1980 60 8.3 76
Show 20405+4010 TOB 196 BC 32 23.4 77
Show 20405+4010 SEI1214 AB 78 20.3 77
Show 20382+4022 TDT2439 22 0.4 77
Show 20357+4053 BRT2266 325 7.5 79
Show 20476+4038 CNT 9 292 9.0 79
Show 20456+4014 TDT2519 347 1.3 81

 
 
WDS 20421+4125 : COMPONENTS
 
 
  A
B pa=89.5°
sep=0.38"
 
 
20421+4125 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204204.34+412446.5 Mag 9.85 Spectral class A0 (white)
PmRA 7.00 PmDE -1.0 Tycho2 3174-00584-1
Tycho2
Tycho2 3174-00584-1 Pflag RAmdeg 310.51811703 DEmdeg 41.41290926
PmRA 6.7 PmDE -0.9 E RAmdeg 10 E DEmdeg 9
E pmRA 1.0 E pmDE 1.0 EpRAm 1990.35 EpDEm 1990.59
Num 8 Q RAmdeg 1.0 Q DEmdeg 0.9 Q pmRA 1.0
Q pmDE 0.9 BTmag 9.409 E BTmag 0.019 VTmag 9.369
E VTmag 0.019 Prox 999 TYC T HIP
CCDM RAdeg 310.51809639 DEdeg 41.41291111 EpRA 1990 1.68
EpDE 1990 1.70 E RAdeg 10.1 E DEdeg 9.3 Posflg
Corr 0.0
 
 
20421+4125 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204204.37+412446.5 Mag 10.26 PmRA 7.00
PmDE -1.0 Calc delta mag 0.41 Calc coord yes