20391+3103 J 1238 (HD 334777)

20^h 39^m 13.29^s +31° 03' 02.9" P.A. 18.00 sep 3.6 mag 11.40,12.40 Sp G5

Coord 2000	20391+3103	Discov num	J 1238	Comp		Coord arcsec 2000	20 39 13.29 +31 03 02.9
Date first	1900	Date last	2016	Obs	11
Pa first	16	Pa last	17.8	P.A. Now (θ)	17.8°
Sep first	3.4	Sep last	3.61	Sep. Now (ρ)	3.61"
Mag pri	11.40	Mag sec	12.40	delta mag (ΔM)	1	Spectral class	G5 (yellow)
Pri motion ra	-006	Sec motion ra	+003
Pri motion dec	-046	Sec motion dec	-011
Notes	N (See Notes)

rPM=0.779

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 334777		Constellation	Cygnus		Tycho2	2686-00323-1		Gaia DR2	1862402827213463424
HD	334777

WDS 20391+3103 J 1238 (HD 334777) : NOTES

discov_num	notes	refcode
J 1238	BRT 284.	Brt1929b

REFERENCES

refcode	metd	author	reference
Brt1929b	Pa -	Barton, S.G.	1929AJ.....39...93B
Brt1929b		AJ 39, 93, 1929 (BRT 231 - BRT 293)

DISCOVERER

idgroup	discov	author
1	J	Jonckheere, R.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20391+3103	J 1238		2000	7	22	3.7	9.60	10.50		D	203913.29+310302.9
20391+3103	J 1238		2002	8	17	3.6	9.60	10.50		D	203913.29+310302.9
20391+3103	J 1238		2015	9	18	3.6	11.40	12.40	G5	N	203913.29+310302.9
20391+3103	J 1238		2016	11	18	3.6	11.40	12.40	G5	N	203913.29+310302.9

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WDS 20391+3103 J 1238 (HD 334777) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20391+3103 J 1238 (HD 334777) : MEASURES

No records found.

WDS 20391+3103 (HD 334777) : VIRTUAL EYEPIECE

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WDS 20391+3103 (HD 334777) : ALADIN DSS IMAGE @ 20^h 39^m 13.29^s +31° 03' 02.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20391+3103 J 1238 (HD 334777) : 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		20391+3103	J 1238		18	3.6
Show		20382+3109	AG 261		154	4.3	15
Show		20377+3112	BRT 283		266	4.3	22
Show		20401+3044	TDT2457	Aa,Ab	139	0.9	22
Show		20401+3044	ROE 15	AB	249	7.6	22
Show		20401+3044	ROE 15	AC	257	30.4	22
Show		20408+3115	TDT2468		247	1.9	24
Show		20410+3047	TDT2470		181	2.5	28
Show		20414+3049	TDS1091		350	0.8	32
Show		20396+3030	STF2711		223	2.4	34
Show		20416+3117	TDT2474		224	1.7	34
Show		20375+3134	FYM 138	BD	35	41.0	36
Show		20375+3134	FYM 138	BE	29	58.4	36
Show		20375+3134	FYM 138	BF	81	38.8	36
Show		20375+3134	FYM 138	BG	83	62.5	36
Show		20419+3054	TDT2480		147	0.6	37
Show		20375+3134	STFA 53	AB	177	182.7	39
Show		20375+3134	STFA 53	AC		71.3	39
Show		20375+3134	FYM 138	AH	89	111.0	39
Show		20376+3138	COU1328		35	2.8	42
Show		20363+3044	TDT2411		90	0.8	43
Show		20371+3138	TDT2425		261	0.5	45
Show		20399+3154	TDT2456		18	0.7	52
Show		20365+3149	TDS1085		58	1.5	58
Show		20413+3012	ARY 28	AB	332	62.8	59
Show		20413+3012	ARY 28	AC	35	102.2	59
Show		20407+3007	TDT2467		160	0.8	60
Show		20435+3127	TDT2499		80	0.4	60
Show		20350+3130	TDT2396		144	0.6	61
Show		20439+3119	ES 366		128	4.4	63
Show		20368+3157	J 568		351	5.0	63
Show		20351+3031	COU1327		8	2.7	63
Show		20362+3010	TDT2408		177	0.4	66
Show		20358+3152	TDT2404		68	1.9	66
Show		20412+3001	COU1173		46	1.1	67
Show		20381+2958	A 743		309	1.2	67
Show		20437+3137	LDS2929		219	2.5	68
Show		20374+2958	HJ 1547		8	17.0	70
Show		20416+3000	COU1174		32	0.3	71
Show		20423+3202	TDT2482		314	0.7	71
Show		20381+2953	A 744		272	0.7	72
Show		20384+3215	TDT2445		224	2.5	73
Show		20366+3209	TDT2417		18	1.1	74
Show		20378+2951	TDT2435		143	2.3	75
Show		20368+2955	TDT2421		159	0.4	75
Show		20419+3210	TDT2479		316	1.1	75
Show		20371+2953	MLB 663		265	4.3	76
Show		20406+2948	HO 137	AB	358	0.8	77
Show		20406+2948	GII 290	Aa,Ab	43	0.1	77
Show		20403+2947	STF2714		338	6.8	78
Show		20332+3052	TDT2366		146	0.7	78

WDS 20391+3103 : COMPONENTS

	A
B	pa=15.4° sep=3.56"

20391+3103 A

Componente originario normalizzato	AB	Name	HD 334777	Coord arcsec 2000	203913.29+310302.9	Mag	11.4
Spectral class	G5 (yellow)	PmRA	-6.00	PmDE	-46.0	Tycho2	2686-00323-1
HD	334777

Tycho2

Tycho2	2686-00323-1	Pflag		RAmdeg	309.80537592	DEmdeg	31.05070635
PmRA	-6.2	PmDE	-45.3	E RAmdeg	45	E DEmdeg	42
E pmRA	3.4	E pmDE	3.3	EpRAm	1989.63	EpDEm	1990.03
Num	2	Q RAmdeg		Q DEmdeg		Q pmRA
Q pmDE		BTmag	12.108	E BTmag	0.086	VTmag	11.502
E VTmag	0.073	Prox	999	TYC		HIP
CCDM		RAdeg	309.80539250	DEdeg	31.05080917	EpRA 1990	1.68
EpDE 1990	1.82	E RAdeg	46.1	E DEdeg	41.6	Posflg
Corr	0.2

20391+3103 B

Componente originario normalizzato	AB		Coord arcsec 2000	203913.36+310306.3		Mag	12.4		PmRA	3.00
PmDE	-11.0		Calc delta mag	1		Calc coord	yes