18421+2857 HDS 2648 (FI Lyr)

18^h 42^m 04.83^s +28° 57' 29.7" P.A. 194.00 sep 0.3 mag 9.46,9.65 Sp M dist. 358.42 pc (1169.17 l.y.)

Coord 2000	18421+2857	Discov num	HDS2648	Comp		Coord arcsec 2000	18 42 04.83 +28 57 29.7
Date first	1991	Date last	2009	Obs	2
Pa first	97	Pa last	193.8	P.A. Now (θ)	193.8°
Sep first	0.2	Sep last	0.319	Sep. Now (ρ)	0.319"
Mag pri	9.46	Mag sec	9.65	delta mag (ΔM)	0.19	Spectral class	M (red)
Pri motion ra	-005	Sec motion ra
Pri motion dec	+009	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Var name	FI Lyr		Constellation	Lyra		HIP	91703		Tycho2	2120-00426-1
Gaia DR2	4539472985237012224		BD	BD+28 3059		Distance	358.42		Distance ly	1169.17

WDS 18421+2857 HDS 2648 (FI Lyr) : 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
18421+2857	HDS2648		1991	1	97	0.2	9.46	9.65	M		184204.83+285729.7
18421+2857	HDS2648		2009	2	194	0.3	9.46	9.65	M		184204.83+285729.7

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

WDS 18421+2857 HDS 2648 (FI Lyr) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18421+2857 HDS 2648 (FI Lyr) : MEASURES

No records found.

WDS 18421+2857 (FI Lyr) : VIRTUAL EYEPIECE

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Pass over with the mouse cursor to display the catalog designation.

WDS 18421+2857 (FI Lyr) : ALADIN DSS IMAGE @ 18^h 42^m 04.83^s +28° 57' 29.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18421+2857 HDS 2648 (FI Lyr) : 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		18421+2857	HDS2648		194	0.3
Show		18422+2851	LDS4795		163	132.8	7
Show		18413+2844	MMA 16		8	12.4	18
Show		18422+2922	RAO 396		110	0.9	25
Show		18404+2845	MLB 466	BC	289	4.6	26
Show		18404+2845	MLB 466	AB	351	42.6	26
Show		18404+2845	SLE 96	AD	53	35.5	26
Show		18404+2845	SLE 96	AE	280	67.2	26
Show		18404+2845	MLB 466	AC	346	45.0	26
Show		18414+2820	TDT 999		147	1.8	39
Show		18387+2847	L 25		252	1.3	44
Show		18387+2858	L 53		21	8.3	45
Show		18452+2919	SLE 105		93	10.2	46
Show		18428+2945	SLE 116		71	18.2	49
Show		18446+2819	SLE 365		261	8.1	52
Show		18384+2842	STF2356		63	1.0	52
Show		18411+2808	SLE 104		198	9.8	52
Show		18396+2940	SLE 102		103	13.3	54
Show		18381+2911	TDT 965		141	0.6	54
Show		18388+2823	SLE 103		13	8.4	56
Show		18448+2945	TDT1028		69	0.6	60
Show		18386+2937	J 525		70	3.1	62
Show		18455+2815	STF2381		122	8.9	62
Show		18383+2818	SLE 361		8	19.9	64
Show		18412+3000	SLE 115		40	8.5	65
Show		18379+2823	AG 362		341	28.7	65
Show		18373+2845	SLE 99		317	4.5	65
Show		18421+2753	TDT1009		264	0.5	65
Show		18398+2800	SLE 97	AC	60	10.1	66
Show		18398+2800	COU 640	AB	90	0.4	66
Show		18442+3000	TDT1022		128	0.6	68
Show		18369+2915	SLE 98		315	11.2	71
Show		18464+2815	TDT1047		228	0.6	71
Show		18429+3008	SLE 117	AB	299	13.6	72
Show		18429+3008	SLE 117	AC	13	17.7	72
Show		18394+3000	SLE 101		235	20.2	72
Show		18476+2903	DAM 679		229	19.4	73
Show		18456+2759	TDT1037		98	0.5	76
Show		18473+2825	HJ 1347	AB	274	18.5	76
Show		18473+2825	HJ 1347	AC	165	75.6	76
Show		18435+2743	STF2374	AB	40	13.4	77
Show		18435+2743	STF2374	AC	358	150.6	77
Show		18422+2739	STF2371		56	10.0	79
Show		18395+3009	LDS4794		13	224.9	80
Show		18454+3005	SLE 119		177	6.6	81
Show		18413+3018	STF2367	AB	73	0.4	81
Show		18413+3018	BTG 2	AB,F	173	42.4	81
Show		18413+3018	STF2367	AB,C	192	14.1	81
Show		18413+3018	STF2367	AB,D	84	21.9	81
Show		18413+3018	STF2367	AB,E	341	151.7	81
Show		18381+3000	J 1138		300	2.7	83

WDS 18421+2857 : COMPONENTS

	A
B	pa=192.1° sep=0.32"

18421+2857 A

Componente originario normalizzato	AB	Name	FI Lyr	Coord arcsec 2000	184204.83+285729.7	Mag	9.46
Spectral class	M (red)	PmRA	-5.00	PmDE	9.0	HIP	91703
BD	BD+28 3059

Hipparcos

Catalog	H	HIP	91703	Proxy	H	RAhms	18 42 04.83
DEdms	+28 57 29.7	Vmag	8.65	VarFlag	2	R Vmag	H
RAdeg	280.52	DEdeg	28.9583	AstroRef	*	Plx	1.56
CCDM	18421+2857	N CCDM	H	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	B	M HIP	AB
Theta	97	Rho	0.209	HD		BD	BD+28 3059
CD		CP		Dm number	+28 3059	VIred	1.93
SpType	M	R SpType		Coord arcsec 2000	184204.83+285729.7

Hipparcos 2

HIP	91703	Sn	55	So	3	Nc	2
RArad	4.8959999912	DErad	0.5054168317	Plx	2.79	PmRA	-5.07
PmDE	12.34	E RArad	0.7	E DErad	0.68	E Plx	0.96
E pmRA	0.79	E pmDE	0.84	Hpmag	8.799	E Hpmag	0.0217
SHp	0.169	VA	2	BV	1.22	E BV	0.046
VI	1.18

CCDM

Ccdm	18421+2857	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-1.17	DDEs	30.0
R dRAs	82	Year		Theta		Rho
Obs	2	Vmag	9.5	Sp	M	PmNote	*
PmRA	2	PmDE	31	Dm number	+28 3059	Cat1	BD
Name2	+28 1836	Cat2	AGK2/3	HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	91703

18421+2857 B

Componente originario normalizzato	AB		Coord arcsec 2000	184204.82+285729.4		Mag	9.65		Tycho2	2120-00426-1
Calc delta mag	0.19		Calc coord	yes

Tycho2

Tycho2	2120-00426-1	Pflag		RAmdeg	280.52012283	DEmdeg	28.95828763
PmRA	-5.6	PmDE	13.4	E RAmdeg	19	E DEmdeg	18
E pmRA	1.8	E pmDE	1.7	EpRAm	1989.95	EpDEm	1990.10
Num	5	Q RAmdeg	0.5	Q DEmdeg	1.6	Q pmRA	0.5
Q pmDE	1.6	BTmag	11.087	E BTmag	0.048	VTmag	9.713
E VTmag	0.023	Prox	999	TYC	T	HIP	91703
CCDM	AB	RAdeg	280.52013778	DEdeg	28.95825722	EpRA 1990	1.54
EpDE 1990	1.64	E RAdeg	19.1	E DEdeg	17.7	Posflg	P
Corr	-0.1

CCDM

Ccdm	18421+2857	RComp		Comp	B	Note1
Note2		Discov num	HDS	DRAs	-1.16	DDEs	29.5
R dRAs	82	Year	1991	Theta	97	Rho	0.2
Obs	1	Vmag	9.6	Sp		PmNote	*
PmRA	-13	PmDE	-17	Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	91703