21391+2036 STT 444 (HD 206056)

21^h 39^m 04.16^s +20° 36' 05.7" P.A. 277.00 sep 8.0 mag 8.06,11.19 Sp F5 dist. 303.95 pc (991.48 l.y.)

Coord 2000	21391+2036	Discov num	STT 444	Comp		Coord arcsec 2000	21 39 04.16 +20 36 05.7
Date first	1850	Date last	2016	Obs	27
Pa first	274	Pa last	277.1	P.A. Now (θ)	277.1°
Sep first	8.0	Sep last	8.029	Sep. Now (ρ)	8.029"
Mag pri	8.06	Mag sec	11.19	delta mag (ΔM)	3.13	Spectral class	F5 (yellow-white)
Pri motion ra	+033	Sec motion ra	+034
Pri motion dec	+014	Sec motion dec	+014
Notes

rPM=0.027 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 206056	Constellation	Pegasus	SAO	89872	HIP	106903
Tycho2	1673-00463-1	Gaia DR2	1786800437741224704	HD	206056	BD	BD+19 4755
Distance	303.95	Distance ly	991.48

WDS 21391+2036 STT 444 (HD 206056) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
STTA		(O. Struve DD - Appendix list)	...................
Stt1864	Ma -	Struve, O.	1864MNRAS..24..149S
Stt1864		MNRAS 24, 149, 1864
Stt1866	orb -	Struve, O.	.
Stt1866		Bull. Imp. Acad. Sci. St. Petersburg, 1866
Stt1874	orb -	Struve, O.	.
Stt1874		Compte Rendus 79, 1467, 1874
Stt1875	orb -	Struve, O.	1875MNRAS..35..367S
Stt1875		MNRAS 35, 367, 1875
Stt1878	Ma -	Struve, O.	1878ObPul...9....1S
Stt1878		Pulkova Observations 9, 1, 1878
Stt1879A	Ma -	Struve, O.	1879Obs.....2..304G
Stt1879A		cited by Gledhill (Obs 2, 304, 1879)
Stt1879B	Ma -	Struve, O.	1879Obs.....3..245G
Stt1879B		cited by Gledhill (Obs 3, 245, 1879)
Stt1879C	Ma -	Struve, O.	1879Obs.....2..344G
Stt1879C		cited by Gledhill (Obs 2, 344, 1879)
Stt1880A	Ma -	Struve, O.	1880Obs.....2..605H
Stt1880A		cited by Hunt (Obs. 3, 605, 1880)
Stt1880B	Ma -	Struve, O.	1880Obs.....3..535G
Stt1880B		cited by Gledhill (Obs 3, 535, 1880)
Stt1880C	Ma -	Struve, O.	1880MNRAS..40..497B
Stt1880C		cited by Burnham (MNRAS 40, 497, 1880)
Stt1884A	Ma -	Struve, O.	1884AReg...22..216S
Stt1884A		cited by Sadler (Astr. Register 22, 216, 1884)
Stt1893a	Ma j	Struve, O.	1893ObPul..10....1S
Stt1893a		Pulkova Obs. Observations 10, 1, 1893
Stt1906A	Ma -	Struve, O.	1906MmRAS..56....1L
Stt1906A		cited by Lewis (MemRAS 56, 1, 1906)
Stt1906B	Ma j	Struve, O.	1906QB821.B972.....
Stt1906B		cited in BDS (Burnham Double Star Cat., 1906)
Stt1908A	Ma -	Struve, O.	1908MNRAS..68..465B
Stt1908A		cited by Barnard (MNRAS 68, 465, 1908)
Stt1913A	Ma -	Struve, O.	1913QB811.B8.......
Stt1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Stt1914A	Ma -	Struve, O.	1914AN....198..107R
Stt1914A		cited by Rabe (AN 198, 107, 1914)
Stt1932A	Ma -	Struve, O.	1932QB821.A43......
Stt1932A		cited in ADS (Aitken Double Star Cat., 1932)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21391+2036	STT 444		2003	19	277	8.0	8.06	11.19	F5	D	213904.16+203605.7
21391+2036	STT 444		2009	21	278	8.0	8.06	11.19	F5	D	213904.16+203605.7
21391+2036	STT 444		2010	22	277	8.2	8.06	11.19	F5		213904.16+203605.7
21391+2036	STT 444		2015	23	277	8.0	8.06	11.19	F5		213904.16+203605.7
21391+2036	STT 444		2016	27	277	8.0	8.06	11.19	F5		213904.16+203605.7

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

WDS 21391+2036 STT 444 (HD 206056) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21391+2036 STT 444 (HD 206056) : MEASURES

No records found.

WDS 21391+2036 (HD 206056) : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 21391+2036 (HD 206056) : ALADIN DSS IMAGE @ 21^h 39^m 04.16^s +20° 36' 05.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21391+2036 STT 444 (HD 206056) : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		21391+2036	STT 444		277	8.0
Show		21393+2043	STT 445		120	1.0	8
Show		21397+2041	GMC 23		342	10.5	11
Show		21379+2102	YR 30		340	0.1	31
Show		21399+2005	UC 4521		35	12.3	34
Show		21417+2100	UC 4531		213	69.8	44
Show		21403+1955	SLW1246		345	155.2	45
Show		21427+2102	J 614		307	2.0	59
Show		21433+2046	J 852		92	4.2	62
Show		21419+1949	CBL 533		123	64.8	62
Show		21408+2140	LDS4903		100	81.0	70
Show		21352+2124	BU 74		338	1.0	73
Show		21347+1953	TDT3040		23	0.9	76
Show		21424+2140	GRV 495		146	33.8	80
Show		21334+2018	J 613		222	5.1	82
Show		21399+1914	COU 330		190	0.5	84
Show		21409+1915	HDS3086		66	1.1	85
Show		21330+2043	STF2804	AB	359	3.4	86
Show		21330+2043	STF2804	AC	103	97.1	86
Show		21368+1915	BRT2498		268	5.0	88
Show		21326+2048	GMC 21		130	10.5	92
Show		21434+2147	COU 536		227	1.0	94
Show		21429+2152	HJ 1683	AB	169	12.6	94
Show		21429+2152	HJ 1683	AC	315	27.3	94
Show		21429+2152	ABH 150	AD	28	75.5	94
Show		21362+1912	TDT3052		197	1.7	94
Show		21349+1923	TDT3041		350	0.8	94
Show		21385+1902	TDT3077	AB	294	0.4	95
Show		21385+1902	SKF 292	AB,C	91	16.2	95
Show		21451+1954	RAO 466		249	0.6	95
Show		21457+2100	UC 4553		184	63.7	97
Show		21384+1858	TDT3075		250	1.0	99
Show		21431+2157	BRT2499		206	4.8	99
Show		21368+1858	TDT3062		151	0.6	104
Show		21461+2111	AG 277		62	2.7	105
Show		21461+2001	HU 376		14	1.4	106
Show		21420+1856	DAM 16	CD	90	3.5	108
Show		21420+1856	LBU 2	Aa,Ab	22	0.6	108
Show		21420+1856	STF2818	AB	24	26.8	108
Show		21420+1856	FOX9055	AC	267	76.5	108
Show		21426+1900	HO 165		63	0.8	109
Show		21313+2112	GRV 473		26	46.4	115
Show		21373+2230	CVR 911		174	10.5	117
Show		21455+2156	AG 276		1	2.0	121
Show		21458+2155	HU 1656		305	2.2	124
Show		21310+2128	COU 232		34	0.6	125
Show		21466+1929	COU 431		184	0.5	125
Show		21429+1843	SLW1251		328	123.9	126
Show		21481+2100	HU 378		298	0.2	129
Show		21473+2134	GRV 505		327	45.5	130
Show		21465+2210	HO 465	BC	80	4.9	140

WDS 21391+2036 : COMPONENTS

	A
B	pa=277.6° sep=7.52"

21391+2036 A

Componente originario normalizzato	AB	Name	HD 206056	Coord arcsec 2000	213904.16+203605.7	Mag	8.06
Spectral class	F5 (yellow-white)	PmRA	33.00	PmDE	14.0	SAO	89872
HIP	106903	Tycho2	1673-00463-1	HD	206056	BD	BD+19 4755

Tycho2

Tycho2	1673-00463-1	Pflag		RAmdeg	324.76731962	DEmdeg	20.60159637
PmRA	33.6	PmDE	13.6	E RAmdeg	4	E DEmdeg	5
E pmRA	1.1	E pmDE	1.0	EpRAm	1991.67	EpDEm	1991.61
Num	11	Q RAmdeg	1.0	Q DEmdeg	1.0	Q pmRA	1.0
Q pmDE	1.1	BTmag	8.608	E BTmag	0.016	VTmag	8.057
E VTmag	0.011	Prox	80	TYC	T	HIP	106903
CCDM	A	RAdeg	324.76723861	DEdeg	20.60156611	EpRA 1990	1.87
EpDE 1990	1.96	E RAdeg	4.4	E DEdeg	5.1	Posflg
Corr	-0.2

SAO

SAO	89872	DelFlag		RA1950		PmRA1950	0.0015
DE1950		PmDE1950	0.021	Vmag	8	SpType	F5
Double code		Source	28	CatNum	8830	DM	BD+19 4755
DMcomp		BDsup		HD	206056	M HD	0
GC		RA1950rad	5.65812054	DE1950rad	0.35560964	PmRA2000	0.0015
PmDE2000	0.017

Hipparcos

Catalog	H	HIP	106903	Proxy	H	RAhms	21 39 04.14
DEdms	+20 36 05.6	Vmag	7.99	VarFlag		R Vmag	G
RAdeg	324.767	DEdeg	20.6016	AstroRef	A	Plx	4.86
CCDM	21391+2036	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	277	Rho	8.042	HD	206056	BD	BD+19 4755
CD		CP		Dm number	+19 4755	VIred	0.63
SpType	F5+...	R SpType		Coord arcsec 2000	213904.14+203605.6

Hipparcos 2

HIP	106903	Sn	15	So	3	Nc	2
RArad	5.6682574851	DErad	0.3595650982	Plx	3.29	PmRA	41.26
PmDE	11.95	E RArad	0.65	E DErad	0.56	E Plx	0.9
E pmRA	0.9	E pmDE	0.58	Hpmag	8.0571	E Hpmag	0.001
SHp	0.013	VA	0	BV	0.558	E BV	0.015
VI	0.63

CCDM

Ccdm	21391+2036	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-1.78	DDEs	6.1
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	8.1	Sp	F5	PmNote	*
PmRA	33	PmDE	22	Dm number	+19 4755	Cat1	BD
Name2	+20 2458	Cat2	AGK2/3	HD	206056	M HD
ADS BDS	A15171	M ADS BDS		N IDS		IDS	21344N2009A
HIC	106903

21391+2036 B

Componente originario normalizzato	AB		Coord arcsec 2000	213903.63+203606.7		Mag	11.19		PmRA	34.00
PmDE	14.0		Calc delta mag	3.13		Calc coord	yes

CCDM

Ccdm	21391+2036	RComp		Comp	B	Note1
Note2		Discov num	STT 444	DRAs	-2.27	DDEs	6.9
R dRAs	10	Year	1850	Theta	276	Rho	8.0
Obs	7	Vmag	11.1	Sp		PmNote	*
PmRA	77	PmDE	24	Dm number		Cat1
Name2	+20 2457	Cat2	AGK2/3	HD		M HD
ADS BDS	A15171	M ADS BDS		N IDS		IDS	21344N2009B
HIC	106903