21507+7746 HDS 3110 (HD 208391)

21^h 50^m 41.38^s +77° 46' 06.6" P.A. 353.00 sep 0.4 mag 8.02,11.42 Sp K0 dist. 418.41 pc (1364.85 l.y.)

Coord 2000	21507+7746	Discov num	HDS3110	Comp		Coord arcsec 2000	21 50 41.38 +77 46 06.6
Date first	1991	Date last	1991	Obs	1
Pa first	353	Pa last	353	P.A. Now (θ)	353°
Sep first	0.4	Sep last	0.405	Sep. Now (ρ)	0.405"
Mag pri	8.02	Mag sec	11.42	delta mag (ΔM)	3.4	Spectral class	K0 (yellow-orange)
Pri motion ra	+008	Sec motion ra
Pri motion dec	+002	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 208391	Constellation	Cepheus	SAO	10179	HIP	107828
Tycho2	4603-01504-1	Gaia DR2	2284187376087850496	HD	208391	BD	BD+77 836
Distance	418.41	Distance ly	1364.85

WDS 21507+7746 HDS 3110 (HD 208391) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
HDS		Hipparcos Double Star (from additional DD list)	...................

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21507+7746	HDS3110		1991	1	353	0.4	8.02	11.42	K0	D	215041.38+774606.6

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WDS 21507+7746 HDS 3110 (HD 208391) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21507+7746 HDS 3110 (HD 208391) : MEASURES

No records found.

WDS 21507+7746 (HD 208391) : VIRTUAL EYEPIECE

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WDS 21507+7746 (HD 208391) : ALADIN DSS IMAGE @ 21^h 50^m 41.38^s +77° 46' 06.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21507+7746 HDS 3110 (HD 208391) : 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		21507+7746	HDS3110		353	0.4
Show		22028+7806	LOC 509		302	2.5	43
Show		21341+7740	LOC 484		235	10.4	54
Show		22035+7710	LOC 503		177	6.8	55
Show		22013+7700	LOC 502	AB	129	4.0	58
Show		21394+7839	UC 4520		189	30.6	63
Show		22076+7826	LDS1971		296	3.0	67
Show		21545+7639	KPP4257		110	1.7	69
Show		22080+7830	LOC 510		17	1.7	70
Show		21567+7639	LOC 493		113	1.5	71
Show		22086+7850	LOC 511		347	2.1	85
Show		22054+7635	LOC 501		210	4.1	87
Show		21572+7622	UC 4611		304	33.6	87
Show		22095+7852	HU 777		249	0.4	87
Show		21576+7621	SKF2780		345	22.4	89
Show		21536+7922	LDS1961		29	208.9	97
Show		22069+7626	LDS1969		322	14.2	97
Show		21573+7605	A 892		230	1.3	104
Show		21589+7602	MLR 254		309	2.5	108
Show		21458+7937	TOI1893		203	6.1	112
Show		22070+7557	TDT3350	AB	145	4.1	123
Show		22052+7945	LOC 512		354	14.5	127
Show		21584+7535	RAO 690		316	218.6	134
Show		21461+8001	LOC 495		81	30.0	136
Show		21485+8008	LOC 497		314	3.3	143
Show		21390+8002	LDS1958		206	8.5	143
Show		21460+7515	UC 4555		332	16.7	152
Show		21374+7513	STT 449		127	1.2	160
Show		21321+7507	OSW 63		233	87.1	173
Show		21565+8042	LOC 498		104	1.4	177
Show		21513+8053	MLR 253		129	1.6	188
Show		21465+8053	TDT3151		301	1.0	188
Show		22065+7445	LDS1967		42	44.9	190
Show		21518+8102	KPP1343		232	10.1	196
Show		22082+7438	MLR 256		156	0.3	198
Show		21585+7425	KPP 501		92	3.4	204
Show		21398+7425	MLR 250		315	0.7	204
Show		22064+7430	STF2874		149	9.8	205
Show		21540+8112	LDS1962		167	26.2	207
Show		22086+8107	LOC 513		355	2.4	207
Show		21515+7419	UC 4582		96	50.5	208
Show		21561+8115	LOC 494		359	26.1	210
Show		21391+7421	KPP4240		238	6.8	210
Show		22008+7417	LDS1966		155	1.9	212
Show		21461+7411	SKF1102		184	2.3	216
Show		21493+7410	UC 4573		264	51.6	216
Show		21503+7410	UC 4578	AB	187	73.6	217
Show		21503+7410	UC 4578	AC	120	51.1	217
Show		21503+7410	UC 4578	BC	48	71.7	218
Show		21566+7408	UC 4607		118	51.7	220
Show		21560+7404	UC 4601	CD	137	33.9	223

WDS 21507+7746 : COMPONENTS

	A
B	pa=358.5° sep=0.40"

21507+7746 A

Componente originario normalizzato	AB	Name	HD 208391	Coord arcsec 2000	215041.38+774606.6	Mag	8.02
Spectral class	K0 (yellow-orange)	PmRA	8.00	PmDE	2.0	SAO	10179
HIP	107828	Tycho2	4603-01504-1	HD	208391	BD	BD+77 836

Tycho2

Tycho2	4603-01504-1	Pflag		RAmdeg	327.67250614	DEmdeg	77.76852012
PmRA	7.5	PmDE	3.4	E RAmdeg	6	E DEmdeg	7
E pmRA	1.1	E pmDE	1.2	EpRAm	1991.07	EpDEm	1991.02
Num	10	Q RAmdeg	1.5	Q DEmdeg	1.6	Q pmRA	1.6
Q pmDE	1.6	BTmag	9.876	E BTmag	0.023	VTmag	8.048
E VTmag	0.011	Prox	999	TYC	T	HIP	107828
CCDM	AB	RAdeg	327.67242389	DEdeg	77.76851222	EpRA 1990	1.65
EpDE 1990	1.58	E RAdeg	6.2	E DEdeg	6.6	Posflg	P
Corr	0.0

SAO

SAO	10179	DelFlag		RA1950		PmRA1950	-0.0039
DE1950		PmDE1950	0.014	Vmag	7.8	SpType	K0
Double code		Source	1	CatNum	618	DM	BD+77 836
DMcomp		BDsup		HD	208391	M HD	0
GC		RA1950rad	5.71962324	DE1950rad	1.35321163	PmRA2000	-0.0037
PmDE2000	0.008

Hipparcos

Catalog	H	HIP	107828	Proxy	H	RAhms	21 50 41.38
DEdms	+77 46 06.6	Vmag	7.88	VarFlag		R Vmag	G
RAdeg	327.672	DEdeg	77.7685	AstroRef	A	Plx	2.27
CCDM	21507+7746	N CCDM	H	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	353	Rho	0.405	HD	208391	BD	BD+77 836
CD		CP		Dm number	+77 836	VIred	1.51
SpType	K0	R SpType		Coord arcsec 2000	215041.38+774606.6

Hipparcos 2

HIP	107828	Sn	15	So	3	Nc	2
RArad	5.7189624588	DErad	1.3573165458	Plx	2.39	PmRA	9.82
PmDE	3.69	E RArad	0.55	E DErad	0.48	E Plx	0.56
E pmRA	0.71	E pmDE	0.59	Hpmag	7.9761	E Hpmag	0.0017
SHp	0.012	VA	0	BV	1	E BV	0.04
VI	1.51

CCDM

Ccdm	21507+7746	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-0.59	DDEs	6.7
R dRAs	82	Year		Theta		Rho
Obs	2	Vmag	8.0	Sp	K0	PmNote	*
PmRA	8	PmDE	2	Dm number	+77 836	Cat1	BD
Name2	+77 618	Cat2	AGK2/3	HD	208391	M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	107828

21507+7746 B

Componente originario normalizzato	AB		Coord arcsec 2000	215041.38+774607.0		Mag	11.42		Calc delta mag	3.4
Calc coord	yes

CCDM

Ccdm	21507+7746	RComp		Comp	B	Note1
Note2		Discov num	HDS	DRAs	-0.62	DDEs	7.1
R dRAs	82	Year	1991	Theta	353	Rho	0.4
Obs	1	Vmag	11.4	Sp		PmNote	*
PmRA	8	PmDE	2	Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	107828