20450+3827 ALI 947

20^h 45^m 03.91^s +38° 27' 56.5" P.A. 69.00 sep 6.9 mag 11.97,12.50

Coord 2000	20450+3827	Discov num	ALI 947	Comp		Coord arcsec 2000	20 45 03.91 +38 27 56.5
Date first	1928	Date last	2020	Obs	4
Pa first	68	Pa last	68.8	P.A. Now (θ)	68.8°
Sep first	7.1	Sep last	6.91	Sep. Now (ρ)	6.91"
Mag pri	11.97	Mag sec	12.50	delta mag (ΔM)	0.53	Spectral class
Pri motion ra	-010	Sec motion ra
Pri motion dec	-001	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

3166-01261-1

Gaia DR2

2063425438609406976

WDS 20450+3827 ALI 947 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Ali1949	Pa -	Ali, A.	1949AJ.....54..199A
Ali1949		AJ 54, 199, 1949
Ali1950	Pa -	Ali, A.	1950AJ.....55..209A
Ali1950		AJ 55, 208, 1950
Ali1952	Pa -	Ali, A.	1952AJ.....57..146A
Ali1952		AJ 57, 146, 1952
Ali1955	Pa -	Ali, A.	.
Ali1955		Pub. Nizamiah Obs. 13, Pt. 2, 1955
Ali9999	Pa -	Ali, A.	...................
Ali9999	+Po	Unpublished, manuscript or reference not found.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
20450+3827	ALI 947		1929	2	68	7.1	11.97	12.50			204503.91+382756.5
20450+3827	ALI 947		2000	3	68	7.0	11.97	12.50			204503.91+382756.5
20450+3827	ALI 947		2020	4	69	6.9	11.97	12.50			204503.91+382756.5

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WDS 20450+3827 ALI 947 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20450+3827 ALI 947 : MEASURES

No records found.

WDS 20450+3827 : VIRTUAL EYEPIECE

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WDS 20450+3827 : ALADIN DSS IMAGE @ 20^h 45^m 03.91^s +38° 27' 56.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20450+3827 ALI 947 : 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		20450+3827	ALI 947		69	6.9
Show		20449+3839	ALI 951		49	11.1	12
Show		20461+3824	ALI 949		313	11.9	12
Show		20440+3838	TDT2506		23	2.9	17
Show		20440+3839	COU2292		240	0.3	17
Show		20436+3834	BRT2232		269	5.8	19
Show		20470+3828	ES 2054		192	2.7	23
Show		20459+3852	COU2294		125	0.9	26
Show		20453+3854	SEI1239		40	26.8	27
Show		20433+3847	GRV 371		180	65.5	29
Show		20470+3806	TDT2534		138	0.6	32
Show		20476+3839	SEI1249		69	27.8	32
Show		20471+3850	HJ 1575		51	14.9	33
Show		20430+3850	ES 2053		223	4.5	33
Show		20461+3858	CRB 11		272	10.8	33
Show		20478+3840	SEI1251		42	15.2	35
Show		20476+3812	SEI1250		18	17.3	35
Show		20420+3827	AG 263		70	1.6	36
Show		20449+3908	SEI1236		318	27.4	40
Show		20415+3818	TDT2473		169	0.6	44
Show		20464+3747	SEI1244		149	22.5	45
Show		20432+3749	ES 2122	AB	71	5.4	47
Show		20432+3749	FYM 323	AC	142	20.4	47
Show		20457+3917	SEI1241		309	7.1	49
Show		20447+3739	SEI1232		240	28.9	50
Show		20419+3752	TDT2478		339	1.9	52
Show		20435+3919	SEI1229		156	19.6	53
Show		20445+3921	HJ 1572		280	15.6	54
Show		20412+3801	ES 2512		327	6.9	54
Show		20498+3833	HJ 1582	AB	45	17.4	56
Show		20498+3833	HJ 1582	AC	327	28.7	56
Show		20488+3754	TDT2557		237	0.7	56
Show		20408+3802	ALI 672		167	12.4	56
Show		20480+3917	A 1434	AB	178	0.0	61
Show		20480+3917	A 1434	AB,C	256	2.5	61
Show		20400+3821	KPP 5		337	3.1	61
Show		20410+3905	MCA 62	Aa,Ab	276	0.1	61
Show		20410+3905	HJ 612	AB	9	48.9	61
Show		20402+3846	TDT2459		36	1.4	61
Show		20441+3927	ES 1981		310	4.5	61
Show		20438+3928	SEI1230		124	25.3	62
Show		20468+3730	ALI 674		328	13.0	62
Show		20404+3758	SEI1212	AB	195	18.9	63
Show		20404+3758	FYM 327	AC	30	14.0	63
Show		20437+3727	COU2291		228	1.0	64
Show		20472+3730	J 1210		247	3.9	64
Show		20498+3900	MLB 983		191	3.8	64
Show		20489+3919	TDT2558		191	1.1	68
Show		20507+3807	SEI1275		196	22.2	70
Show		20422+3726	SEI1223		142	10.3	72
Show		20511+3837	SEI1281		102	8.6	73

WDS 20450+3827 : COMPONENTS

	A
B	pa=63.6° sep=5.63"

20450+3827 A

Componente originario normalizzato	AB		Coord arcsec 2000	204503.91+382756.5		Mag	11.97		PmRA	-10.00
PmDE	-1.0		Tycho2	3166-01261-1

Tycho2

Tycho2	3166-01261-1	Pflag		RAmdeg	311.26628403	DEmdeg	38.46571792
PmRA	-10.3	PmDE	-1.2	E RAmdeg	76	E DEmdeg	75
E pmRA	4.1	E pmDE	3.8	EpRAm	1985.53	EpDEm	1984.46
Num	3	Q RAmdeg	0.5	Q DEmdeg	2.1	Q pmRA	0.5
Q pmDE	2.1	BTmag	12.545	E BTmag	0.194	VTmag	11.972
E VTmag	0.156	Prox	999	TYC		HIP
CCDM		RAdeg	311.26631500	DEdeg	38.46572056	EpRA 1990	1.61
EpDE 1990	1.66	E RAdeg	79.8	E DEdeg	79.9	Posflg
Corr	0.1

20450+3827 B

Componente originario normalizzato	AB		Coord arcsec 2000	204504.34+382759.0		Mag	12.5		Calc delta mag	0.53
Calc coord	yes