21267+3957 MLB 1021

21^h 26^m 37.40^s +39° 56' 39.3" P.A. 81.00 sep 3.6 mag 11.21,13.20

Coord 2000	21267+3957	Discov num	MLB1021	Comp		Coord arcsec 2000	21 26 37.40 +39 56 39.3
Date first	1936	Date last	2000	Obs	2
Pa first	84	Pa last	81	P.A. Now (θ)	81°
Sep first	6.5	Sep last	3.55	Sep. Now (ρ)	3.55"
Mag pri	11.21	Mag sec	13.20	delta mag (ΔM)	1.99	Spectral class
Pri motion ra	+006	Sec motion ra
Pri motion dec	+003	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

3186-02311-1

Gaia DR2

1965435553588368640

WDS 21267+3957 MLB 1021 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Mlb1918	Mb -	Milburn, W. (Espin, T.E.)	1918MNRAS..78..189E
Mlb1918		MNRAS 78, 189, 1918 (MLB 1 - 35; measures by Espin)
Mlb1919	Mb -	Milburn, W. (Espin, T.E.)	1919MNRAS..79..211E
Mlb1919		MNRAS 79, 211, 1919 (MLB 36 - 106; measures by Espin)
Mlb1920	Mb -	Milburn, W.	1920MNRAS..80..329M
Mlb1920		MNRAS 80, 329, 1920 (MLB 107 - 149)
Mlb1921	Mb -	Milburn, W.	1921MNRAS..81..232E
Mlb1921		MNRAS 81, 232, 1921 (MLB 150 - 182)
Mlb1922	Mb j	Milburn, W. (Espin, T.E.)	1922MNRAS..82..187E
Mlb1922		MNRAS 82, 187, 1922 (MLB 183 - 241; measures by Espin)
Mlb1923	Mb -	Milburn, W.	1923MNRAS..83..154E
Mlb1923		MNRAS 83, 154, 1923 (MLB 242 - 275)
Mlb1924	Mb -	Milburn, W.	1924MNRAS..84..162E
Mlb1924		MNRAS 84, 162, 1924 (MLB 276 - 322)
Mlb1925	Mb j	Milburn, W.	1925MNRAS..85..276E
Mlb1925		MNRAS 85, 276, 1925 (MLB 323 - 376)
Mlb1926	Mb -	Milburn, W.	1926MNRAS..86..131E
Mlb1926		MNRAS 86, 131, 1926 (MLB 377 - 440)
Mlb1927	Mb j	Milburn, W.	1927MNRAS..87..215E
Mlb1927	+Po	MNRAS 87, 215, 1927 (MLB 441 - 510)
Mlb1928	Mb -	Milburn, W.	1928MNRAS..88..185E
Mlb1928		MNRAS 88, 185, 1928 (MLB 511 - 551)
Mlb1929	Mb -	Milburn, W.	1929MNRAS..89..268E
Mlb1929		MNRAS 89, 268, 1929 (MLB 552 - 591)
Mlb1930	Mb -	Milburn, W.	1930MNRAS..90..317E
Mlb1930		MNRAS 90, 317, 1930 (MLB 592 - 630)
Mlb1931	Mb j	Milburn, W.	1931MNRAS..91..294E
Mlb1931		MNRAS 91, 294, 1931 (MLB 631 - 673)
Mlb1932	Ma -	Milburn, W.	1932MNRAS..92..214E
Mlb1932	+Mb	MNRAS 92, 214, 1932 (MLB 674 - 732)
Mlb1932B	Ma -	Milburn, W.	1932QB821.A43......
Mlb1932B		cited by ADS (Aitken Double Star Cat., 1932)
Mlb1933	Ma j	Milburn, W.	1933MNRAS..93..192E
Mlb1933	+Mb	MNRAS 93, 192, 1933 (MLB 733 - 806)
Mlb1934	Mb j	Milburn, W.	1934MNRAS..94..255M
Mlb1934		MNRAS 94, 255, 1934 (MLB 807 - 912)
Mlb1935	Mb j	Milburn, W.	1935MNRAS..95..298M
Mlb1935		MNRAS 95, 298, 1935 (MLB 913 - 969)
Mlb1936	Mb -	Milburn, W.	1936MNRAS..96..266M
Mlb1936		MNRAS 96, 266, 1936 (MLB 970 - 997)
Mlb1937	Ma -	Milburn, W.	1937MNRAS..97..222M
Mlb1937	+Mb	MNRAS 97, 222, 1937 (MLB 998 - 1025)
Mlb1938	Ma -	Milburn, W.	1938MNRAS..98..223M
Mlb1938	+Mb	MNRAS 98, 223, 1938 (MLB 1026 - 1032)
Mlb1939	Mb -	Milburn, W.	1939MNRAS..99..278M
Mlb1939		MNRAS 99, 278, 1939 (MLB 1033 - 1051)
Mlb9999	Mb -	Milburn, W.	...................
Mlb9999		Unpublished, manuscript or reference not found.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21267+3957	MLB1021		1936	1	84	6.5	11.21	13.20			212637.40+395639.3
21267+3957	MLB1021		2000	2	81	3.6	11.21	13.20			212637.40+395639.3

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

WDS 21267+3957 MLB 1021 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21267+3957 MLB 1021 : MEASURES

No records found.

WDS 21267+3957 : VIRTUAL EYEPIECE

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Pass over with the mouse cursor to display the catalog designation.

WDS 21267+3957 : ALADIN DSS IMAGE @ 21^h 26^m 37.40^s +39° 56' 39.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21267+3957 MLB 1021 : NEIGHBORHOODS

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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		21267+3957	MLB1021		81	3.6
Show		21264+3954	RAO 455		345	1.4	4
Show		21259+3959	TDT2958		109	0.9	9
Show		21275+3954	MLB 984		94	5.2	10
Show		21276+3944	MLB 985		256	3.3	17
Show		21268+3935	TDT2974		261	0.4	22
Show		21241+4002	ES 1994		106	4.3	29
Show		21240+3954	TDT2944		186	1.6	30
Show		21289+3941	MLB 986		58	4.5	31
Show		21298+4005	TDT2995		137	2.3	38
Show		21294+3936	TDT2991		170	0.8	38
Show		21299+4001	MLB 960		335	4.7	39
Show		21300+3941	KPP 495		150	3.9	42
Show		21263+3911	ALI 970		63	8.3	46
Show		21299+3928	MLB 987		263	7.0	47
Show		21264+3909	A 1442		274	1.2	49
Show		21257+4043	COU2306		18	0.7	49
Show		21308+4013	MLB 896	AB	340	3.1	51
Show		21308+4013	MLB 896	AC	69	29.0	51
Show		21224+3940	ALI1161		292	15.5	51
Show		21279+4046	TDT2979		135	0.4	52
Show		21314+4004	HO 161		15	2.9	56
Show		21312+4013	MLB 897		23	4.9	56
Show		21221+4011	ES 2518		247	2.7	56
Show		21228+4031	HO 287		6	2.7	57
Show		21316+4005	MLB 898		251	6.7	58
Show		21215+4002	SEI1511		283	28.5	59
Show		21247+3903	ALI 969		63	8.2	59
Show		21212+4003	COU2230		81	0.4	62
Show		21302+4044	MLB 26		70	5.0	63
Show		21321+3949	COU1974		136	0.2	64
Show		21209+4002	LDS2512		30	85.1	66
Show		21324+4002	HO 162		330	3.5	67
Show		21209+4010	UC 259	AB	110	55.0	68
Show		21286+4102	UC 262		199	48.3	70
Show		21327+3948	HO 604		316	5.3	71
Show		21248+4106	COU2305		101	0.3	73
Show		21304+3859	KU 131		12	36.7	73
Show		21204+4017	RAO 451		116	2.8	75
Show		21219+4049	GRV 456		56	36.5	76
Show		21260+4112	HDS3052		260	0.2	76
Show		21281+4110	COU2231		35	0.1	76
Show		21332+4001	MLB 990		231	4.1	76
Show		21199+3957	SEI1506		60	7.8	77
Show		21199+3948	SEI1507		146	11.6	78
Show		21331+3938	MLB 899	AB	51	3.2	78
Show		21331+3938	MLB 899	AC	142	27.9	78
Show		21335+3951	TDT3030		176	0.8	79
Show		21333+3940	MLB 900		279	6.8	80
Show		21217+4053	ES 1691		174	5.3	80
Show		21196+3948	SEI1503	AB	278	9.7	81

WDS 21267+3957 : COMPONENTS

	A
B	pa=78.3° sep=2.74"

21267+3957 A

Componente originario normalizzato	AB		Coord arcsec 2000	212637.40+395639.3		Mag	11.21		PmRA	6.00
PmDE	3.0		Tycho2	3186-02311-1

Tycho2

Tycho2	3186-02311-1	Pflag		RAmdeg	321.65586361	DEmdeg	39.94425170
PmRA	6.3	PmDE	2.8	E RAmdeg	40	E DEmdeg	34
E pmRA	5.3	E pmDE	4.7	EpRAm	1986.97	EpDEm	1986.49
Num	3	Q RAmdeg	2.5	Q DEmdeg	0.3	Q pmRA	2.5
Q pmDE	0.3	BTmag	14.170	E BTmag	0.387	VTmag	11.212
E VTmag	0.067	Prox	999	TYC		HIP
CCDM		RAdeg	321.65581500	DEdeg	39.94424750	EpRA 1990	1.66
EpDE 1990	1.72	E RAdeg	56.6	E DEdeg	52.6	Posflg
Corr	0.0

21267+3957 B

Componente originario normalizzato	AB		Coord arcsec 2000	212637.63+395639.9		Mag	13.2		Calc delta mag	1.99
Calc coord	yes