21557+0715 STT 452 (HD 208364)

21^h 55^m 40.01^s +07° 15' 13.9" P.A. 177.00 sep 0.8 mag 9.04,9.63 Sp F8 dist. 189.04 pc (616.65 l.y.)

Coord 2000	21557+0715	Discov num	STT 452	Comp		Coord arcsec 2000	21 55 40.01 +07 15 13.9
Date first	1843	Date last	2016	Obs	62
Pa first	185	Pa last	177.2	P.A. Now (θ)	177.2°
Sep first	1.1	Sep last	0.847	Sep. Now (ρ)	0.847"
Mag pri	9.04	Mag sec	9.63	delta mag (ΔM)	0.59	Spectral class	F8 (yellow-white)
Pri motion ra	-032	Sec motion ra	-032
Pri motion dec	-027	Sec motion dec	-027
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 208364	Constellation	Pegasus	HIP	108239	Tycho2	0557-00367-1
Gaia DR2	2700663100583450880	HD	208364	BD	BD+06 4926	Distance	189.04
Distance ly	616.65

WDS 21557+0715 STT 452 (HD 208364) : 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
21557+0715	STT 452		2005	56	179	0.7	9.04	9.63	F8	D	215540.01+071513.9
21557+0715	STT 452		2006	58	178	0.7	9.04	9.63	F8	D	215540.01+071513.9
21557+0715	STT 452		2015	60	176	0.7	9.04	9.63	F8		215540.01+071513.9
21557+0715	STT 452		2016	61	177	0.8	9.04	9.63	F8		215540.01+071513.9

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

WDS 21557+0715 STT 452 (HD 208364) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21557+0715 STT 452 (HD 208364) : MEASURES

No records found.

WDS 21557+0715 (HD 208364) : 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 21557+0715 (HD 208364) : ALADIN DSS IMAGE @ 21^h 55^m 40.01^s +07° 15' 13.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21557+0715 STT 452 (HD 208364) : 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		21557+0715	STT 452		177	0.8
Show		21565+0715	STT 453	AB	269	0.7	13
Show		21565+0715	HJ 3069	AB,C	75	23.9	13
Show		21544+0738	CVR 254		73	13.1	30
Show		21566+0633	HU 381		235	0.2	45
Show		21521+0739	OSO 158	AB	126	10.4	58
Show		21521+0739	OSO 158	AC	30	13.2	58
Show		21573+0825	HJ 5523		204	20.4	69
Show		21547+0606	SLW1256		203	31.1	71
Show		21524+0623	SKF1871		253	7.0	72
Show		21591+0814	GWP3110		31	19.6	78
Show		21595+0617	HJ 3079		74	10.0	82
Show		21513+0808	STE 15	AB	248	5.9	85
Show		21513+0808	YSC 164	Aa,Ab	10	0.5	85
Show		21580+0556	STF2848		56	10.9	87
Show		21586+0601	SHJ 336	AB	222	93.5	87
Show		21586+0601	SHJ 336	AC	101	84.1	87
Show		21513+0821	STF2831		355	14.5	93
Show		21539+0845	J 2703	AB	97	6.8	93
Show		21539+0845	J 2703	AC	223	14.3	93
Show		21539+0845	ABH 153	AD	120	67.5	93
Show		21539+0845	ABH 153	AE	110	67.3	93
Show		22002+0822	OSO 165		36	9.7	95
Show		21539+0851	GRV 518		329	40.5	100
Show		21521+0549	J 916		184	1.7	101
Show		21591+0541	GWP3111		202	34.8	108
Show		21570+0900	SKF2809		303	104.4	108
Show		21522+0538	JOD 23	AB	288	0.2	111
Show		21522+0538	JOD 23	AC	35	0.7	111
Show		21512+0546	HJ 3061		105	17.0	112
Show		21593+0537	HDS3123		245	0.3	113
Show		21502+0558	CBL 600		253	12.0	113
Show		21504+0839	HJ 944		17	20.4	114
Show		22035+0652	HJ 3084		53	15.1	119
Show		22035+0649	HJ 3083		210	31.6	120
Show		21519+0905	STF2833		337	8.4	123
Show		21530+0518	HU 379		253	1.4	124
Show		22001+0528	FYM 334	AB	133	12.8	127
Show		22001+0528	FYM 334	AC	169	21.8	127
Show		22041+0657	GWP3119		9	14.6	127
Show		22000+0525	HEI 824		154	2.9	127
Show		21514+0525	BAL2983		16	6.0	128
Show		21534+0512	HJ 3064		141	9.1	128
Show		21469+0722	J 202		183	3.3	131
Show		21492+0543	GIC 172		126	434.7	134
Show		21576+0501	HJ 3073		18	25.6	138
Show		21526+0925	HJ 948		300	15.1	138
Show		21542+0459	OSO 160	AB	316	13.8	139
Show		21542+0459	OSO 160	AC	225	25.6	139
Show		21562+0935	A 621		86	0.1	141
Show		21586+0931	HJ 3077		36	36.1	142

WDS 21557+0715 : COMPONENTS

	A
B	pa=177.2° sep=0.85"

21557+0715 A

Componente originario normalizzato	AB	Name	HD 208364	Coord arcsec 2000	215540.01+071513.9	Mag	9.04
Spectral class	F8 (yellow-white)	PmRA	-32.00	PmDE	-27.0	HIP	108239
Tycho2	0557-00367-1	HD	208364	BD	BD+06 4926

Tycho2

Tycho2	0557-00367-1	Pflag		RAmdeg	328.91669371	DEmdeg	7.25380568
PmRA	-32.0	PmDE	-27.2	E RAmdeg	11	E DEmdeg	12
E pmRA	2.0	E pmDE	2.0	EpRAm	1990.69	EpDEm	1990.18
Num	6	Q RAmdeg	0.8	Q DEmdeg	1.2	Q pmRA	0.9
Q pmDE	1.1	BTmag	9.346	E BTmag	0.024	VTmag	8.760
E VTmag	0.019	Prox	999	TYC	T	HIP	108239
CCDM	AB	RAdeg	328.91676806	DEdeg	7.25387167	EpRA 1990	1.65
EpDE 1990	1.40	E RAdeg	10.5	E DEdeg	12.7	Posflg	P
Corr	0.1

Hipparcos

Catalog	H	HIP	108239	Proxy	H	RAhms	21 55 40.02
DEdms	+07 15 14.2	Vmag	8.55	VarFlag		R Vmag	H
RAdeg	328.917	DEdeg	7.25393	AstroRef	A	Plx	5.2
CCDM	21557+0715	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	178	Rho	0.809	HD	208364	BD	BD+06 4926
CD		CP		Dm number	+06 4926	VIred	0.65
SpType	F8	R SpType		Coord arcsec 2000	215540.02+071514.2

Hipparcos 2

HIP	108239	Sn	15	So	3	Nc	2
RArad	5.7406805694	DErad	0.1266049795	Plx	5.29	PmRA	-38.39
PmDE	-34.58	E RArad	1.87	E DErad	1.65	E Plx	2.16
E pmRA	2.85	E pmDE	1.96	Hpmag	8.6649	E Hpmag	0.0044
SHp	0.02	VA	0	BV	0.528	E BV	0.027
VI	0.6

CCDM

Ccdm	21557+0715	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-1.99	DDEs	12.3
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	8.6	Sp	F8	PmNote	*
PmRA	-32	PmDE	-49	Dm number	+06 4926	Cat1	BD
Name2	+07 3209	Cat2	AGK2/3	HD	208364	M HD
ADS BDS	A15452	M ADS BDS		N IDS		IDS	21507N0647A
HIC	108239

21557+0715 B

Componente originario normalizzato	AB		Coord arcsec 2000	215540.01+071513.1		Mag	9.63		PmRA	-32.00
PmDE	-27.0		Calc delta mag	0.59		Calc coord	yes

CCDM

Ccdm	21557+0715	RComp		Comp	B	Note1
Note2		Discov num	STT 452	DRAs		DDEs
R dRAs		Year	1847	Theta	179	Rho	1.0
Obs	99	Vmag	9.7	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A15452	M ADS BDS		N IDS		IDS	21507N0647B
HIC	108239