17555+4108 ES 1557 AB

Coord 2000	17555+4108		Discov num	ES 1557		Comp	AB		Coord arcsec 2000	17 55 31.53 +41 07 48.5
Date first	1893		Date last	2015		Obs	20
Pa first	2		Pa last	11.2		P.A. Now (θ)	11.2°
Sep first	9.2		Sep last	11.541		Sep. Now (ρ)	11.541"
Mag pri	9.08		Mag sec	12.40		delta mag (ΔM)	3.32		Spectral class	F3V (yellow-white)
Pri motion ra	-017		Sec motion ra	+006
Pri motion dec	-016		Sec motion dec	+006
Notes	L (Linear solution)

rPM=1.363 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			17 55 32 +41 07 48	COU 1601 Aa,Ab	2016	17	63	0.5	9.69	9.91	0.22
Show			17 55 32 +41 07 48	ES 1557 AB	2015	20	11	11.5	9.08	12.40	3.32		<===
Show			17 55 32 +41 07 48	ES 1557 AC	2015	10	216	27.0	9.08	12.29	3.21
Show			17 55 32 +41 07 48	ES 1557 AD	2015	8	312	40.1	9.08	13.35	4.27
Show			17 55 32 +41 07 48	ABH 92 AE	2015	7	324	71.1	9.08	14.83	5.75

Sextuple system
5 estimated visually detectable stars in this system

Constellation	Hercules		Tycho2	3093-00705-1		Gaia DR2	1344950488843424384		ADS	10901
DM	BD+41 2928

No records found.

refcode	metd	author	reference
AbH1961	-	Abt, H.A.	1961A&AS....6...37A
AbH1961		A&AS 6, 37, 1961
AbH1962	Po j	Abt, H.A. Jeffers, H., Gibson, & Sandage, A.	1962ApJ...135..429A
AbH1962		ApJ 135, 429, 1962
AbH1964	-	AbT, H.A. et al.	1964ApJ...139.1139A
AbH1964		ApJ 139, 1139, 1964
AbH1965	-	Abt, H.A.	1965A&AS...11..429A
AbH1965		A&AS 11, 429, 1965
AbH1965b	-	Abt, H.A. et al.	1965ApJ...142.1604A
AbH1965b		ApJ 142, 1604, 1965
AbH1972	-	Abt. H.A. & Biggs, E.S.	1972bsrv.book.....A
AbH1972		Bibliography of Stellar Radial Velocities
AbH1972b	not -	Abt. H.A., Levy, S.G., & Gandet, T.L.	1972AJ.....77..138A
AbH1972b		AJ 77, 138, 1972
AbH1973	-	Abt, H.A. & Levy, S.G.	1973AJ.....78.1093A
AbH1973		AJ 78, 1093, 1973
AbH1976	orb -	Abt, H.A. & Levy, S.G.	1976A&AS...30..273A
AbH1976		A&AS 30, 273, 1976
AbH1978	-	Abt, H.A. & Levy, S.G.	1978A&AS...36..241A
AbH1978		A&AS 36, 241, 1978
AbH1985	-	Abt, H.A. & Levy, S.G.	1985ApJS...59..229A
AbH1985		ApJS 59, 229, 1985
AbH1986	-	Abt, H.A.	1986ApJ...304..688A
AbH1986		ApJ 304, 688, 1986
AbH2000	C u	Abt, H.A. & Corbally, C.J.	2000ApJ...541..841A
AbH2000		ApJ 541, 841, 2000
AbH2000		(Multi-epoch astrometry, photometry, and spectroscopy to determine
AbH2000		optical/physical nature of members of possible Trapezium systems)
AbH2006	orb -	Abt, H.A., & Willmarth, D.	2006ApJS..162..207A
AbH2006		ApJS 162, 207, 2006
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)
Es_1901	Mb -	Espin, T.E.	1901AN....155..321E
Es_1901		AN 155, 321, 1901 (ES 1 - 39)
Es_1902a	Ma -	Espin, T.E.	1902AN....158..241E
Es_1902a	+Mb	AN 158, 241, 1902 (ES 40 - 112)
Es_1902b	Mb -	Espin, T.E.	1902MNRAS..62..528E
Es_1902b		MNRAS 62, 528, 1902
Es_1902c	Mb j	Espin, T.E.	1902MNRAS..62..402E
Es_1902c		MNRAS 62, 402, 1902
Es_1903	Mb -	Espin, T.E.	1903MNRAS..63..172E
Es_1903		MNRAS 63, 172, 1903 (ES 113 - 150)
Es_1904a	-	Espin, T.E.	1904MNRAS..64..238E
Es_1904a		MNRAS 64, 238, 1904 (data superceded by MNRAS 65, 710, 1905)	1905MNRAS..65..710E
Es_1904b	Mb -	Espin, T.E.	1904MNRAS..64..675E
Es_1904b		MNRAS 64, 675, 1904
Es_1905	Mb -	Espin, T.E.	1905MNRAS..65..710E
Es_1905		MNRAS 65, 710, 1905 (ES 151 - 221)
Es_1906a	Mb -	Espin, T.E.	1906MNRAS..66..141E
Es_1906a		MNRAS 66, 141, 1906 (ES 222 - 269)
Es_1906b	Mb -	Espin, T.E.	1906MNRAS..66..430E
Es_1906b		MNRAS 66, 430, 1906 (ES 270 - 311)
Es_1906C	Mb -	Espin, T.E.	1906QB821.B972.....
Es_1906C		cited in BDS (Burnham Double Star Cat.), 1906
Es_1906D	Mb -	Espin, T.E.	1906MmRAS..56....1L
Es_1906D		cited by Lewis (MemRAS 56, 1, 1906)
Es_1907a	Mb j	Espin, T.E.	1907MNRAS..67..190E
Es_1907a		MNRAS 67, 190, 1907 (ES 312 - 403)
Es_1907b	Mb -	Espin, T.E.	1907MNRAS..67..495E
Es_1907b		MNRAS 67, 495, 1907 (ES 404 - 442)
Es_1908a	Mb j	Espin, T.E.	1908MNRAS..68..202E
Es_1908a		MNRAS 68, 202, 1908 (ES 443 - 551)
Es_1908b	Mb -	Espin, T.E.	1908MNRAS..68..523E
Es_1908b		MNRAS 68, 523, 1908 (ES 552 - 609)
Es_1908c	-	Espin, T.E.	1908JRASC...2..248E
Es_1908c		JRASC 2, 248, 1908 (data also in MNRAS 69, 218, 1909)	1909MNRAS..69..218E
Es_1909a	Mb j	Espin, T.E.	1909MNRAS..69..218E
Es_1909a		MNRAS 69, 218, 1909 (ES 610 - 704)
Es_1909b	Mb j	Espin, T.E.	1909MNRAS..69..604E
Es_1909b		MNRAS 69, 604, 1909 (ES 705 - 743)
Es_1910a	Mb -	Espin, T.E.	1910MNRAS..70..237E
Es_1910a		MNRAS 70, 237, 1910 (ES 744 - 864)
Es_1910b	Mb -	Espin, T.E.	1910MNRAS..70..541E
Es_1910b		MNRAS 70, 541, 1910 (ES 865 - 927)
Es_1911	Mb -	Espin, T.E.	1911MNRAS..71..217E
Es_1911		MNRAS 71, 217, 1911 (ES 928 - 1051)
Es_1912	Mb -	Espin, T.E.	1912MNRAS..72..191E
Es_1912		MNRAS 72, 191, 1912 (ES 1052 - 1125)
Es_1913	Mb j	Espin, T.E.	1913MNRAS..73..162E
Es_1913		MNRAS 73, 162, 1913 (ES 1126 - 1191)
Es_1914	Mb j	Espin, T.E.	1914MNRAS..74..244E
Es_1914		MNRAS 74, 244, 1914 (ES 1192 - 1293)
Es_1915a	Mb -	Espin, T.E.	1915MNRAS..75..203E
Es_1915a		MNRAS 75, 203, 1915 (ES 1294 - 1356)
Es_1915b	Mb -	Espin, T.E.	1915MNRAS..75..555E
Es_1915b		MNRAS 75, 555, 1915 (ES 1357 - 1405)
Es_1915c	Mb -	Espin, T.E.	1915MNRAS..76..210E
Es_1915c		MNRAS 76, 210, 1915 (ES 1406 - 1479)
Es_1917	Mb -	Espin, T.E.	1917MNRAS..77..236E
Es_1917		MNRAS 77, 236, 1917 (ES 1480 - 1600)
Es_1918	Mb j	Espin, T.E.	1918MNRAS..78..189E
Es_1918		MNRAS 78, 189, 1918 (ES 1601 - 1705, MLB 1 - 35)
Es_1919	Mb -	Espin, T.E.	1919MNRAS..79..211E
Es_1919		MNRAS 79, 211, 1919 (ES 1706 - 1768, MLB 36 - 106)
Es_1920	Mb -	Espin, T.E.	1920MNRAS..80..329E
Es_1920		MNRAS 80, 329, 1920 (ES 1769 - 1805, MLB 107 - 149)
Es_1921	Mb j	Espin, T.E.	1921MNRAS..81..232E
Es_1921		MNRAS 81, 232, 1921 (ES 1806 - 1864, MLB 150 - 182)
Es_1922	Mb -	Espin, T.E.	1922MNRAS..82..187E
Es_1922		MNRAS 82, 187, 1922 (ES 1865 - 1933, MLB 183 - 241)
Es_1923	Mb -	Espin, T.E.	1923MNRAS..83..154E
Es_1923		MNRAS 83, 154, 1923 (ES 1934 - 2006, MLB 242 - 275)
Es_1924	Mb -	Espin, T.E.	1924MNRAS..84..162E
Es_1924		MNRAS 84, 162, 1924 (ES 2007 - 2078, MLB 276 - 322)
Es_1925a	Mb -	Espin, T.E.	1925MNRAS..85..276E
Es_1925a		MNRAS 85, 276, 1925 (ES 2079 - 2137, MLB 323 - 376)
Es_1925b	Mb -	Espin, T.E.	1925MNRAS..86...79E
Es_1925b		MNRAS 86, 79, 1925
Es_1926	Mb -	Espin, T.E.	1926MNRAS..86..131E
Es_1926		MNRAS 86, 131, 1926 (ES 2138 - 2209, MLB 377 - 440)
Es_1927	Mb -	Espin, T.E.	1927MNRAS..87..215E
Es_1927		MNRAS 87, 215, 1927 (ES 2210 - 2273, MLB 441 - 510)
Es_1928	Mb -	Espin, T.E.	1928MNRAS..88..185E
Es_1928		MNRAS 88, 185, 1928 (ES 2274 - 2328, MLB 511 - 551)
Es_1929	Mb -	Espin, T.E.	1929MNRAS..89..268E
Es_1929		MNRAS 89, 268, 1929 (ES 2329 - 2362, MLB 552 - 591)
Es_1930	Mb -	Espin, T.E.	1930MNRAS..90..317E
Es_1930		MNRAS 90, 317, 1930 (ES 2363 - 2400, MLB 592 - 630)
Es_1931	Mb -	Espin, T.E.	1931MNRAS..91..294E
Es_1931		MNRAS 91, 294, 1931 (ES 2401 - 2444, MLB 631 - 673)
Es_1932a	Mb -	Espin, T.E.	1932MNRAS..92..214E
Es_1932a		MNRAS 92, 214, 1932 (ES 2445 - 2543, MLB 674 - 732)
Es_1932B	Mb -	Espin, T.E.	1932QB821.A43......
Es_1932B		cited in ADS (Aitken Double Star Cat.), 1932
Es_1933	Mb -	Espin, T.E.	1933MNRAS..93..192E
Es_1933		MNRAS 93, 192, 1933 (ES 2544 - 2575, MLB 733 - 806)
Es_1937A	Mb -	Espin, T.E.	1937AnLei..18....1S
Es_1937A		cited by Strand (Ann. Sterrew. Leiden 18, 1937)

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17555+4108	ES 1557	AB	1999	5	11	11.1	9.08	12.40	F3V	LD	175531.53+410748.5
17555+4108	ES 1557	AB	2011	6	10	11.5	9.08	12.40	F3V	LD	175531.53+410748.5
17555+4108	ES 1557	AB	2015	8	11	11.6	9.08	12.40	F3V	L	175531.53+410748.5

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

FoV: 30" 1' 5' 15' 30' 1° 2° 4° 5° 8° Limit: 2 3 4 5 10 15 20 25 30 50 100 Primaries only
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Show name coord_2000 discov# comp pa sep dist(') Show 17555+4108 COU1601 Aa,Ab 63 0.5 Show 17555+4108 ES 1557 AB 11 11.5 Show 17555+4108 ES 1557 AC 216 27.0 Show 17555+4108 ES 1557 AD 312 40.1 Show 17555+4108 ABH 92 AE 324 71.1 Show 17550+4107 UC 3444 130 12.0 7 Show 17548+4110 RAO 605 104 0.8 9 Show 17569+4115 STF2255 343 9.1 17 Show 17572+4112 KPP4072 266 1.5 19 Show 17572+4131 COU1782 190 0.4 31 Show 17523+4057 A 699 26 0.1 38 Show 17590+4058 BRT 345 138 2.8 41 Show 17592+4115 COU1783 47 2.8 43 Show 17528+4038 TDT 552 226 1.3 43 Show 17505+4112 A 698 AB 255 4.2 58 Show 17505+4112 A 698 AC 166 25.9 58 Show 17531+4212 COU1599 135 0.6 71 Show 18007+4145 ES 1558 298 6.3 71 Show 17533+4000 BU 130 110 1.6 72 Show 18018+4052 BVD 259 277 10.6 73 Show 17491+4054 BVD 257 297 17.9 75 Show 17499+4151 LDS4765 178 10.7 77 Show 17538+3951 SLW1216 359 13.9 80 Show 17500+4157 STF2237 6 20.4 80 Show 17494+4028 COU1456 275 1.4 81 Show 18029+4109 ES 1648 9 3.7 83 Show 18015+4019 HO 77 312 2.0 84 Show 18031+4158 DOO 10 292 4.9 88 Show 17575+3942 COU1457 7 1.9 89 Show 17536+4234 COU1600 251 0.7 90 Show 18019+4202 DAM 103 206 11.0 90 Show 17479+4047 TDT 509 161 0.5 90 Show 18017+4011 STF2267 280 0.4 91 Show 17525+3943 COU1302 172 4.0 92 Show 17587+4231 POP 123 232 3.4 93 Show 17540+3936 KPP 883 102 7.4 94 Show 18026+4204 UC 3480 18 23.8 98 Show 18035+4032 COU1785 30 0.2 98 Show 17554+3930 STF2246 100 5.5 98 Show 17472+4033 UC 3406 97 76.0 101 Show 17541+3928 HLM 9 285 5.3 102 Show 17562+3926 BU 417 317 1.0 102 Show 17496+3947 GRV 965 249 16.8 105 Show 17537+3924 TDT 560 198 2.5 106 Show 17474+4009 FMR 138 319 63.1 110 Show 17468+4157 DAM 684 97 12.3 110 Show 17592+3926 COU1458 78 0.4 110 Show 17506+3932 COU1301 86 1.8 112 Show 18043+4206 COU1786 Aa,Ab 11 0.2 115 Show 18043+4206 ROE 1 AB 186 24.3 115 Show 17519+4256 COU1598 231 0.4 116

	A	Ab	B	C	D
Ab	pa=55.8° sep=0.43"
B	pa=8.5° sep=11.45"	pa=6.9° sep=11.16"
C	pa=208.2° sep=24.95"	pa=208.7° sep=25.34"	pa=202.1° sep=35.93"
D	pa=320.4° sep=35.03"	pa=319.7° sep=35.08"	pa=303.1° sep=28.68"	pa=347.9° sep=50.09"
E	pa=331.3° sep=65.54"	pa=330.9° sep=65.50"	pa=324.3° sep=56.84"	pa=346.1° sep=81.87"	pa=343.4° sep=31.84"

Coord arcsec 2000	175531.53+410748.5		Mag	9.08		Spectral class	F3V (yellow-white)		PmRA	-17.00
PmDE	-16.0		Tycho2	3093-00705-1		ADS	10901		DM	BD+41 2928

Tycho2	3093-00705-1		Pflag			RAmdeg	268.88141777		DEmdeg	41.13016434
PmRA	-16.3		PmDE	-14.9		E RAmdeg	9		E DEmdeg	10
E pmRA	1.2		E pmDE	1.2		EpRAm	1990.95		EpDEm	1990.72
Num	6		Q RAmdeg	0.7		Q DEmdeg	1.7		Q pmRA	0.7
Q pmDE	1.7		BTmag	9.603		E BTmag	0.020		VTmag	9.156
E VTmag	0.016		Prox	999		TYC	T		HIP
CCDM			RAdeg	268.88146778		DEdeg	41.13019917		EpRA 1990	1.64
EpDE 1990	1.58		E RAdeg	9.3		E DEdeg	9.5		Posflg	P
Corr	0.0

Ccdm	17555+4108		RComp			Comp	A		Note1
Note2			Discov num			DRAs	1.52		DDEs	-11.7
R dRAs	10		Year			Theta			Rho
Obs	4		Vmag	9.1		Sp			PmNote	*
PmRA	-6		PmDE	-18		Dm number	+41 2928		Cat1	BD
Name2	+41 1529		Cat2	AGK2/3		HD			M HD
ADS BDS	A10901		M ADS BDS			N IDS			IDS	17524N4109A
HIC

Coord arcsec 2000	175531.56+410748.7		Mag	9.91		PmRA	-16.00		PmDE	-15.0
Calc delta mag	0.22		Calc coord	yes

Coord arcsec 2000	175531.68+410759.8		Mag	12.4		PmRA	6.00		PmDE	6.0
Calc delta mag	2.71		Calc coord	yes

Ccdm	17555+4108		RComp			Comp	B		Note1
Note2			Discov num	ES 1557		DRAs			DDEs
R dRAs			Year	1916		Theta	004		Rho	9.4
Obs	1		Vmag	12.4		Sp			PmNote
PmRA			PmDE			Dm number			Cat1
Name2			Cat2			HD			M HD
ADS BDS	A10901		M ADS BDS			N IDS			IDS	17524N4109B
HIC

Coord arcsec 2000	175530.48+410726.5		Mag	12.29		PmRA	-3.00		PmDE	-13.0
Calc delta mag	2.6		Calc coord	yes

Ccdm	17555+4108		RComp			Comp	C		Note1
Note2			Discov num	ES 1557		DRAs			DDEs
R dRAs			Year	1916		Theta	038		Rho	28.0
Obs	1		Vmag	11.4		Sp			PmNote
PmRA			PmDE			Dm number			Cat1
Name2			Cat2			HD			M HD
ADS BDS	A10901		M ADS BDS			N IDS			IDS	17524N4109C
HIC

Coord arcsec 2000	175529.55+410815.5		Mag	13.35		PmRA	7.00		PmDE	-1.0
Calc delta mag	3.66		Calc coord	yes

Ccdm	17555+4108		RComp			Comp	D		Note1
Note2			Discov num	ES 1557		DRAs			DDEs
R dRAs			Year	1916		Theta	309		Rho
Obs	1		Vmag	13.3		Sp			PmNote
PmRA			PmDE			Dm number			Cat1
Name2			Cat2			HD			M HD
ADS BDS	A10901		M ADS BDS			N IDS			IDS	17524N4109D
HIC

Coord arcsec 2000	175528.75+410846.0		Mag	14.83		PmRA	-2.00		PmDE	-6.0
Calc delta mag	5.14		Calc coord	yes