07273-2355 ARA 2050 AC

Coord 2000	07273-2355		Discov num	ARA2050		Comp	AC		Coord arcsec 2000	07 27 19.98 -23 55 34.2
Date first	1910		Date last	2016		Obs	8
Pa first	195		Pa last	193.7		P.A. Now (θ)	193.7°
Sep first	9.9		Sep last	9.4		Sep. Now (ρ)	9.4"
Mag pri	10.99		Mag sec	12.80		delta mag (ΔM)	1.81		Spectral class	B5Vn (blue-white)
Pri motion ra	-004		Sec motion ra	-005
Pri motion dec	+013		Sec motion dec	+001
Notes	N U (See Notes, Proper motion indicates non-physical)

rPM=0.885 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			07 27 20 -23 55 34	ARA 2050 AB	2016	8	43	12.5	10.99	12.21	1.22
Show			07 27 20 -23 55 34	ARA 2050 AC	2016	8	194	9.4	10.99	12.80	1.81		<===
Show			07 27 20 -23 55 34	ABH 67 AD	2016	9	249	40.1	10.99	9.48	1.51
Show			07 27 20 -23 55 34	ABH 67 AE	2016	6	245	54.9	10.99	14.20	3.21
Show			07 27 20 -23 55 34	ABH 67 AF	2016	6	247	92.2	10.99	13.72	2.73
Show			07 27 20 -23 55 34	ABH 67 AG	2016	8	275	125.2	10.99	12.99	2.00
Show			07 27 20 -23 55 34	ABH 67 AH	2016	6	204	80.8	10.99	13.61	2.62
Show			07 27 20 -23 55 34	ABH 67 AI	2016	6	38	69.8	10.99	13.53	2.54
Show			07 27 20 -23 55 34	ABH 67 AJ	2016	6	36	62.0	10.99	13.56	2.57
Show			07 27 20 -23 55 34	ABH 67 AK	2015	5	41	52.4	10.99	15.00	4.01
Show			07 27 20 -23 55 34	ABH 67 AL	2016	6	49	31.5	10.99	14.00	3.01
Show			07 27 20 -23 55 34	ABH 67 AM	2016	2	146	35.9	10.99	11.33	0.34
Show			07 27 20 -23 55 34	ABH 67 AN	1999	6	146	36.7	10.99	11.40	0.41
Show			07 27 20 -23 55 34	ABH 67 AO	2016	9	139	74.2	10.99	9.04	1.95
Show			07 27 20 -23 55 34	ABH 67 AP	2016	9	136	113.6	10.99	10.87	0.12
Show			07 27 20 -23 55 34	ABH 67 AQ	2016	6	187	63.3	10.99	14.90	3.91
Show			07 27 20 -23 55 34	ABH 67 AR	2016	6	172	57.2	10.99	14.50	3.51
Show			07 27 20 -23 55 34	ABH 67 AS	2016	6	179	41.8	10.99	14.30	3.31
Show			07 27 20 -23 55 34	ABH 67 AT	2016	6	190	31.7	10.99	14.40	3.41
Show			07 27 20 -23 55 34	ABH 67 AU	2015	5	142	63.6	10.99	14.80	3.81
Show			07 27 20 -23 55 34	ABH 67 AV	2016	6	295	53.3	10.99	14.86	3.87
Show			07 27 24 -23 56 30	I 774 OW	1999	6	220	3.6	9.04	11.20	2.16
Show			07 27 25 -23 57 05	ARA 2052 PX	2016	7	51	13.5	10.87	11.60	0.73

24-fold system
24 estimated visually detectable stars in this system

Constellation

Canis Major

Tycho2

6538-01641-1

Gaia DR2

5618522181920636672

discov_num	notes	refcode
ARA2050	Open (galactic) cluster Trumpler 7.
I 770	OW: Primary of 07274-2356 found to be O component of 07273-2355.
ARA2052	PX: Primary of 07274-2357 found to be P component of 07273-2355.

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
Ara1961	Pa -	Aravamudan, S.	1961PASP...73..266A
Ara1961		PASP 73, 266, 1961
Ara1963	Pa -	Aravamudan, S.	.
Ara1963		Pub. Nizamiah Obs. 13, Pt.3, 1963
I__1895	Ma -	Innes, R.T.A.	1895MNRAS..55..312I
I__1895	+Mb	MNRAS 55, 312,544, 1895
I__1896	Mb -	Innes, R.T.A.	1896JBAA....6..261I
I__1896		J. British Astron. Assoc. 6, 261, 1896
I__1897a	Ma -	Innes, R.T.A.	1897MNRAS..57..533I
I__1897a		MNRAS 57, 533, 1897 (data also in I__1897b,	1897AN....143..171I
I__1897a		I__1897c)	1897AN....144...89I
I__1897b	Ma -	Innes, R.T.A.	1897AN....143..171I
I__1897b		AN 143, 171, 1897
I__1897c	Ma -	Innes, R.T.A.	1897AN....144...89I
I__1897c		AN 144, 89, 1897
I__1897d	Ma -	Innes, R.T.A.	1897AN....145...93I
I__1897d		AN 145, 93, 1897
I__1897e	Ma -	Innes, R.T.A.	1897MNRAS..57..456I
I__1897e	+Mb	MNRAS 57, 456, 1897
I__1897f	Ma -	Innes, R.T.A.	1897MNRAS..58...48I
I__1897f		MNRAS 58, 48, 1897
I__1897g	Ma -	Innes, R.T.A.	1897AJ.....18...65I
I__1897g		AJ 18, 65, 1897
I__1898	Ma -	Innes, R.T.A.	1898AN....146..369I
I__1898		AN 146, 369, 1898
I__1899	Ma -	Innes, R.T.A.	1899QB4.C22v2......
I__1899		Ann. Cape Obs. 2, Pt.2, 1899 (Innes Reference Catalog)
I__1901	Ma -	Innes, R.T.A.	1901MNRAS..61..575.
I__1901		MNRAS 61, 575, 1901 (data also in I__1905)	1905AnCap...2....4I
I__1902a	Ma -	Innes, R.T.A.	1902MNRAS..62..470I
I__1902a		MNRAS 62, 470, 1902 (data also in I__1905)	1905AnCap...2....4I
I__1902b	Ma -	Innes, R.T.A.	1902MNRAS..63...76I
I__1902b		MNRAS 63, 76, 1902 (some data also in I__1905)	1905AnCap...2....4I
I__1903	-	Innes, R.T.A.	1903MNRAS..64..130I
I__1903		MNRAS 64, 130, 1903 (data also in I__1905)	1905AnCap...2....4I
I__1903b	Ma -	Innes, R.T.A.	1903Obs....26..285I
I__1903b		Obs 26, 285, 1903 (some data also in I__1905)	1905AnCap...2....4I
I__1905	Ma -	Innes, R.T.A.	1905AnCap...2....4I
I__1905		Ann. Cape Obs. 2, Pt.4, 1905
I__1907	Ma -	Innes, R.T.A.	1907Obs....30...61I
I__1907		Obs 30, 61, 1907
I__1908	-	Innes, R.T.A.	1908Obs....31..289I
I__1908		Obs 31, 289, 1908 (measures also in I__1909)
I__1909	Ma -	Innes, R.T.A.	.
I__1909		Transvaal Obs. Circ. 1, 1, 1909
I__1910	Ma -	Innes, R.T.A.	.
I__1910		Transvaal Obs. Circ. 1, 21, 1910
I__1911	Ma -	Innes, R.T.A.	.
I__1911		Transvaal Obs. Circ. 1, 61, 1911
I__1912	Ma -	Innes, R.T.A.	.
I__1912		Transvaal Obs. Circ. 1, 111, 1912
I__1913a	Ma -	Innes, R.T.A.	1913CiUO....4...31.
I__1913a		Union Obs. Johannesburg Circ. 4, 31, 1913
I__1913b	Ma -	Innes, R.T.A. (measure by Simpkins, R.P.)	1913CiUO....4...31.
I__1913b		Union Obs. Johannesburg Circ. 4, 31, 1913
I__1914	Ma -	Innes, R.T.A.	1914CiUO...14...97.
I__1914		Union Obs. Johannesburg Circ. 14, 97, 1914
I__1915a	Ma -	Innes, R.T.A.	1915CiUO...24..185.
I__1915a		Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915b	Ma -	Innes, R.T.A. (measure by Cox, G.W.)	1915CiUO...24..185.
I__1915b		Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915c	Ma -	Innes, R.T.A. (measure by Johnson, E.L.)	1915CiUO...24..185.
I__1915c		Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915d	Ma -	Innes, R.T.A. (measure by Simpkins, R.P.)	1915CiUO...24..185.
I__1915d		Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915e	-	Innes, R.T.A.	1915Obs....38..221I
I__1915e		Obs 38, 221, 1915 (measures also in I__1916)	1916CiUO...33..249I
I__1915f	-	Innes, R.T.A.	1915Obs....38..333I
I__1915f		Obs 38, 333, 1915 (measures also in I__1915)	1915CiUO...24..185I
I__1916a	Ma -	Innes, R.T.A.	1916CiUO...33..249I
I__1916a		Union Obs. Johannesburg Circ. 33, 249, 1916
I__1916b	Ma -	Innes, R.T.A. (measure by Simpkins, R.P.)	1916CiUO...33..249I
I__1916b		Union Obs. Johannesburg Circ. 33, 249, 1916
I__1916c	Ma -	Innes, R.T.A. (measure by van der Spuy, K.)	1916CiUO...33..249I
I__1916c		Union Obs. Johannesburg Circ. 33, 249, 1916
I__1917a	Ma -	Innes, R.T.A.	1917CiUO...37..285I
I__1917a		Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917b	Ma -	Innes, R.T.A. (measure by Johnson, E.L.)	1917CiUO...37..285I
I__1917b		Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917c	Ma -	Innes, R.T.A. (measure by van der Spuy, K.)	1917CiUO...37..285I
I__1917c		Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917d	Ma -	Innes, R.T.A. (measure by Worssell, W.M.)	1917CiUO...37..285I
I__1917d		Union Obs. Johannesburg Circ. 37, 285, 1917
I__1918	Ma -	Innes, R.T.A.	1918CiUO...41..339I
I__1918		Union Obs. Johannesburg Circ. 41, 339, 1918
I__1927a	Ma -	Innes, R.T.A.	1927sdsc.book.....I
I__1927a	+Po	Southern Double Star Cat. 1927
I__1927b	Ma -	Innes, R.T.A. & van den Bos, W.H.	1927sdsc.book.....I
I__1927b		Southern Double Star Cat. 1927
I__1932A	Ma -	Innes, R.T.A.	1932QB821.A43......
I__1932A		cited in ADS (Aitken Double Star Cat.), 1932
I__1948a	Ma -	Innes, R.T.A.	1948CiUO..106..193I
I__1948a	+Po	Union Obs. Johannesburg Circ. 106, 193, 1948
I__1948b	Ma -	Innes, R.T.A. (measure by Simpkins, R.P.)	1948CiUO..106..193I
I__1948b		Union Obs. Johannesburg Circ. 106, 193, 1948
I__9999	Ma -	Innes, R.T.A.	...................
I__9999	+Mb	Unpublished, manuscript or reference not found.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
07273-2355	ARA2050	AC	1999	4	191	9.9	10.99	12.80	B5Vn	D	072719.98-235534.2
07273-2355	ARA2050	AC	2016	7	194	9.4	10.99	12.80	B5Vn	NU	072719.98-235534.2

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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

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