19394+3009 MCA 57 (Phi Cyg)

19^h 39^m 22.60^s +30° 09' 11.6" P.A. 247.00 sep 0.0 mag 4.90,5.10 Sp G8III-IV dist. 81.63 pc (266.28 l.y.)

Coord 2000	19394+3009	Discov num	MCA 57	Comp		Coord arcsec 2000	19 39 22.60 +30 09 11.6
Date first	1978	Date last	1994	Obs	52
Pa first	81	Pa last	246.8	P.A. Now (θ)	246.8°
Sep first	0.0	Sep last	0.03	Sep. Now (ρ)	0.03"
Mag pri	4.90	Mag sec	5.10	delta mag (ΔM)	0.2	Spectral class	G8III-IV (yellow)
Pri motion ra	+004	Sec motion ra
Pri motion dec	+037	Sec motion dec
Notes	N O R (See Notes, Orbital solution, Red magnitudes)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	Phi Cyg	Constellation	Cygnus	SAO	68637	HIP	96683
Tycho2	2656-05248-1	Gaia DR2	2032457178261396736	HD	185734	HR	7478
GC	27203	BD	BD+29 3684	Bayer	Phi Cygni	Bayer name	Phi Cyg
Flamsteed	12 Cygni	Flamsteed name	12 Cyg	FK5	3570	Distance	81.63
Distance ly	266.28	Bayer greek	φ Cyg

ORBITAL ELEMENTS

Period (P)	434.171d	± 0.015	Periastron (T)	28230.76d (1936.169y)	± 0.62	Semi-major axis (a)	26.9m	± 0.75
Eccentricity (e)	0.542	± 0.0063	Inclination (i)	80.8°	± 0.63	Longitude of periastron (ω)	34°	± 1.3
Node (Ω)	251°	± 0.86	Notes	n		Reference	Pbx2000b
Equinox			Last observation			Grade	1	(1=Definitive, 9=Indet.)

label	theta	rho
2000-01-01	87.2	0.018
2001-01-01	78.4	0.032
2002-01-01	74.0	0.038
2003-01-01	69.6	0.031
2004-01-01	43.4	0.005
2005-01-01	234.4	0.010
2006-01-01	94.2	0.013
2007-01-01	80.1	0.029
2008-01-01	75.2	0.037
2009-01-01	71.1	0.035
2010-01-01	62.4	0.016
2011-01-01	246.3	0.013
2012-01-01	111.8	0.007
2013-01-01	82.4	0.025
2014-01-01	76.4	0.036
2015-01-01	72.4	0.037
2016-01-01	66.7	0.024
2017-01-01	256.6	0.011
2018-01-01	174.4	0.004
2019-01-01	85.7	0.020
2020-01-01	77.8	0.033
2021-01-01	73.6	0.038
2022-01-01	69.0	0.030
2023-01-01	354.1	0.002
2024-01-01	227.2	0.008
2025-01-01	91.2	0.015
2026-01-01	79.5	0.030
2027-01-01	74.8	0.038
2028-01-01	70.6	0.034
2029-01-01	59.4	0.012
2030-01-01	242.9	0.013

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

Measures: green=micrometric, blue=interferometric, purple=photographic

WDS 19394+3009 MCA 57 (Phi Cyg) : NOTES

discov_num	notes	refcode
MCA 57	phi Cyg = 12 Cyg. A double-lined spectroscopic binary now resolved by
	speckle interferometry.
	Analysis of the spectroscopic/interferometric orbit is given by
	McAlister (1982).	McA1982a
	1980.7173: Theta and rho were incorrectly given as 77.1 degrees and
	0".036, respectively, by McAlister et al. (1983).	McA1983
	P for Armstrong (1992) solution adopted from spectroscopic orbit of	MkT1992d
	Rach & Herbig (1961). Spectroscopic orbit combined with astrometry
	from Mark III to derive distance, masses, absolute magnitudes.
	Data from the Mark III interferometer were combined by Armstrong et.	MkT1992c
	with a reinterpretation of the Rach & Herbig spectroscopic solution to	Her1961
	determine distance, masses, and absolute magnitudes for this pair of
	giants. Evolutionary history is discussed. Errors for Mark III
	astrometry are given as "error ellipses"; these values are tabulated
	below. Columns include date (BY), major and minor axes of the ellipse
	(in mas), and ellipse orientation (in degrees).
	1989.4053 3.6 0.14 100.5
	1989.5312 4.8 0.76 81.6
	1989.6022 10.8 0.64 81.3
	1989.6050 5.8 0.43 77.1
	1989.6160 1.04 0.16 74.8
	1989.6242 1.15 0.117 75.5
	1989.6351 1.58 0.159 75.2
	1989.6812 0.45 0.049 92.3
	1989.6867 2.65 0.31 84.5
	1989.6894 1.47 0.137 85.7
	1989.7031 5.5 0.6 85.0
	1989.7852 6.1 0.44 76.8
	1989.7962 4.8 0.35 70.9
	1990.4758 2.3 0.19 85.5
	1990.4839 1.68 0.39 91.1
	1990.5111 0.135 0.041 112.4
	1990.5139 0.181 0.046 94.8
	1990.5167 0.40 0.114 93.3
	1990.5195 0.29 0.079 86.9
	1990.5304 0.109 0.040 87.6
	1990.5359 0.116 0.038 89.2
	1990.5388 0.55 0.067 76.1
	1990.5687 0.25 0.055 85.7
	1990.5714 0.141 0.042 84.1
	1990.5741 0.28 0.069 93.8
	1990.5768 0.178 0.061 96.5
	1990.5822 0.29 0.064 97.0
	1990.5931 2.2 0.36 95.3
	1990.6099 0.63 0.116 69.5
	1990.6260 0.40 0.091 93.0
	1990.6343 0.96 0.121 82.1
	1990.6371 1.17 0.23 76.7
	1990.6452 0.158 0.028 80.3
	1990.6535 0.42 0.034 75.3
	1990.8255 1.03 0.079 72.4
	1991.4696 0.71 0.120 100.4
	1991.5490 0.25 0.044 80.6
	1991.5870 0.23 0.051 95.8
	1991.5898 0.25 0.038 91.9
	Hipparcos astrometric solution adopted some elements from the orbit of	HIP1997d
	Armstrong et al. (1992).	MkT1992c
	Pourbaix gives combined solution for this resolved SB2, yielding	Pbx2000b
	orbital parallaxes and component masses.
	Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
	masses of 7.49 +/- 0.77, 3.75, and 1.78 Msun, respectively.	Mlk2012

REFERENCES

refcode	metd	author	reference
Her1961	-	Rach & Herbig	1961ApJ...133..143R
Her1961		ApJ 133, 143, 1961
HIP1997d	orb -	Hipparcos	1997yCat.1239....0E
HIP1997d		Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d		(DMSA/O Orbital Solutions)
McA1982a	orb -	McAlister, H.A.	1982AJ.....87..563M
McA1982a		AJ 87, 563, 1982
McA1983	Sc j	McAlister, H.A., Hendry, E.M., Hartkopf, W.I., Campbell, B.G., & Fekel, F.C.	1983ApJS...51..309M
McA1983		ApJS 51, 309, 1983
MkT1992c	Km j	Armstrong, J.T., Hummel, C.A., Quirrenbach, A., Buscher, D.F., Mozurkewich, D.,	1992AJ....104.2217A
MkT1992c	+orb	Vivekanand, M., Simon, R.S., Denison, C.S., et al.
MkT1992c		AJ 104, 2217, 1992
MkT1992d	orb -	Armstrong, J.T.	1992ASPC...32..492A
MkT1992d		IAU Colloq 135, ASP Conf. 32, 492, 1992
Mlk2012	not -	Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A.	2012A&A...546A..69M
Mlk2012		A&A 546, A69, 2012
Pbx2000b	orb -	Pourbaix, D.	2000A&AS..145..215P
Pbx2000b		A&AS 145, 215, 2000

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19394+3009	MCA 57		1994	52	67	0.0	4.70		G8III-IV	NO	193922.60+300911.6

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WDS 19394+3009 MCA 57 (Phi Cyg) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 19394+3009 MCA 57 (Phi Cyg) : MEASURES

No records found.

WDS 19394+3009 (Phi Cyg) : VIRTUAL EYEPIECE

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WDS 19394+3009 (Phi Cyg) : ALADIN DSS IMAGE @ 19^h 39^m 22.60^s +30° 09' 11.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 19394+3009 MCA 57 (Phi Cyg) : 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		19394+3009	MCA 57		247	0.0
Show		19399+3001	SLE 661		158	10.9	11
Show		19386+2953	COU1162	Aa,Ab	127	0.7	20
Show		19386+2953	SLE 654	AB	92	15.5	20
Show		19386+3026	SLE 653		338	11.5	20
Show		19394+3029	FYM 175	FG	22	7.3	20
Show		19394+3029	BKO 76	DE	258	3.4	20
Show		19394+3029	SLE 659	AB	107	8.4	20
Show		19394+3029	SLE 659	AC	88	15.5	20
Show		19394+3029	BKO 76	AD	250	80.3	20
Show		19394+3029	FYM 175	AF	182	23.6	20
Show		19404+3026	SLE 664		180	6.9	22
Show		19376+3006	BRT 39	AB	166	5.1	24
Show		19377+3022	BU 144		356	6.1	24
Show		19396+2945	STF2557	AB	103	11.0	25
Show		19396+2945	BU 54	AC	304	21.8	25
Show		19396+2945	ABH 124	AD	147	47.8	25
Show		19396+2945	ABH 124	AE	164	65.7	25
Show		19396+2945	ABH 124	AF	180	89.2	25
Show		19396+2945	ABH 124	AG	229	39.4	25
Show		19396+2945	ABH 124	AH	92	103.6	25
Show		19396+2945	ABH 124	AI	116	100.5	25
Show		19396+2945	BKO 77	AJ	124	27.9	25
Show		19396+2945	BKO 77	AK	97	69.2	25
Show		19396+2945	BKO 77	AL	220	30.0	25
Show		19396+2945	BKO 77	AM	120	111.9	25
Show		19394+2942	SLE 658	AB	14	6.0	27
Show		19394+2942	FYM 134	AC	149	4.7	27
Show		19399+3037	BRT3347	AB	211	1.7	29
Show		19399+3037	BRT3347	AC	74	2.2	29
Show		19401+3037	J 776	AB	47	3.5	29
Show		19401+3037	J 776	AC	33	27.7	29
Show		19414+3023	TDT1636	Aa,Ab	183	0.5	30
Show		19414+3023	SLE 669	AB	292	10.8	30
Show		19374+3026	COU1319		138	2.6	31
Show		19374+3025	A 370		264	4.9	31
Show		19370+3003	SLE 649		164	13.2	32
Show		19376+3030	LDS1026		138	17.9	32
Show		19414+2959	BRT 41		156	3.7	32
Show		19370+3020	A 369		12	4.6	35
Show		19413+2944	SLE 668		268	10.9	35
Show		19391+2933	MCK 5		65	3.1	37
Show		19364+3004	TDT1577		3	2.3	39
Show		19386+2931	SLE 655		155	5.4	40
Show		19413+3043	BU 145	AB	271	0.9	42
Show		19413+3043	BU 145	AC	28	7.9	42
Show		19413+3043	BU 145	AD	156	26.7	42
Show		19415+2937	SLE 670		164	10.0	43
Show		19386+2928	SLE 656	AB	312	8.8	43
Show		19386+2928	SLE 656	AC	220	11.9	43
Show		19359+3000	SLE 646		200	13.3	46

WDS 19394+3009 : COMPONENTS

	A
B	pa=243.6° sep=0.03"

19394+3009 A

Componente originario normalizzato	AB	Name	Phi Cyg	Coord arcsec 2000	193922.60+300911.6	Mag	4.9
Spectral class	G8III (yellow)	PmRA	4.00	PmDE	37.0	SAO	68637
HIP	96683	Tycho2	2656-05248-1	HD	185734	HR	7478
GC	27203	BD	BD+29 3684	Bayer	Phi Cygni	Bayer name	Phi Cyg
Flamsteed	12 Cygni	Flamsteed name	12 Cyg	FK5	3570

Tycho2

Tycho2	2656-05248-1	Pflag		RAmdeg	294.84419106	DEmdeg	30.15332340
PmRA	2.2	PmDE	37.0	E RAmdeg	3	E DEmdeg	3
E pmRA	1.1	E pmDE	1.0	EpRAm	1991.44	EpDEm	1991.57
Num	16	Q RAmdeg	1.3	Q DEmdeg	1.0	Q pmRA	1.4
Q pmDE	1.1	BTmag	5.894	E BTmag	0.014	VTmag	4.780
E VTmag	0.009	Prox	999	TYC	T	HIP	96683
CCDM		RAdeg	294.84418528	DEdeg	30.15323806	EpRA 1990	1.58
EpDE 1990	1.71	E RAdeg	3.3	E DEdeg	3.2	Posflg
Corr	0.1

SAO

SAO	68637	DelFlag		RA1950		PmRA1950	0
DE1950		PmDE1950	0.042	Vmag	4.8	SpType	K0
Double code		Source	70	CatNum	27203	DM	BD+29 3684
DMcomp		BDsup		HD	185734	M HD	0
GC	27203	RA1950rad	5.13737771	DE1950rad	0.52424411	PmRA2000	0.0002
PmDE2000	0.04

Hipparcos

Catalog	H	HIP	96683	Proxy		RAhms	19 39 22.60
DEdms	+30 09 11.6	Vmag	4.68	VarFlag		R Vmag	H
RAdeg	294.844	DEdeg	30.1532	AstroRef	+	Plx	13
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag	O	Source		Qual		M HIP
Theta		Rho		HD	185734	BD	BD+29 3684
CD		CP		Dm number	+29 3684	VIred	0.89
SpType	G8III-IV...	R SpType		Coord arcsec 2000	193922.60+300911.6

Hipparcos 2

HIP	96683	Sn	75	So	4	Nc	1
RArad	5.1460017966	DErad	0.5262732068	Plx	12.25	PmRA	2.48
PmDE	36.5	E RArad	0.14	E DErad	0.17	E Plx	0.24
E pmRA	0.17	E pmDE	0.19	Hpmag	4.8387	E Hpmag	0.0006
SHp	0.006	VA	0	BV	0.971	E BV	0.001
VI	0.89

CCDM

Ccdm	19394+3009	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-1.39	DDEs	12.0
R dRAs	81	Year		Theta		Rho
Obs	2	Vmag	4.7	Sp	G8	PmNote	@
PmRA	4	PmDE	37	Dm number	+29 3684	Cat1	BD
Name2	+30 1928	Cat2	AGK2/3	HD	185734	M HD
ADS BDS		M ADS BDS	N	N IDS		IDS	19354N2955A
HIC	96683

19394+3009 B

Componente originario normalizzato	AB		Coord arcsec 2000	193922.60+300911.6		Mag	5.1		Spectral class	IV
Calc delta mag	0.2		Calc coord	yes

CCDM

Ccdm	19394+3009	RComp		Comp	B	Note1
Note2		Discov num	MAL 57	DRAs		DDEs
R dRAs		Year	1978	Theta	77	Rho	0.0
Obs	7	Vmag		Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	19354N2955B
HIC	96683