00279+2220 FRV 1

00^h 27^m 55.93^s +22° 19' 32.8" P.A. 259.00 sep 0.1 mag 10.15,10.46 Sp M7.5+M8.0

Coord 2000	00279+2220	Discov num	FRV 1	Comp		Coord arcsec 2000	00 27 55.93 +22 19 32.8
Date first	2004	Date last	2021	Obs	36
Pa first	13	Pa last	258.5	P.A. Now (θ)	218.1°
Sep first	0.1	Sep last	0.093	Sep. Now (ρ)	0.145"
Mag pri	10.15	Mag sec	10.46	delta mag (ΔM)	0.31	Spectral class	M7.5+M8.0 (red/red)
Pri motion ra	+400	Sec motion ra
Pri motion dec	-177	Sec motion dec
Notes	N O K (See Notes, Orbital solution, K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Andromeda

ORBITAL ELEMENTS

Period (P)	7.698y	± 0.014	Periastron (T)	57758d (2017.012y)	± 15	Semi-major axis (a)	145.99m	± 0.18
Eccentricity (e)	0.0468	± 0.0019	Inclination (i)	117.36°	± 0.11	Longitude of periastron (ω)	262.2°	± 1.8
Node (Ω)	36.64°	± 0.1	Notes	n		Reference	Dup2017
Equinox	2000		Last observation			Grade	2	(1=Definitive, 9=Indet.)

label	theta	rho
2000	216.0	0.145
2001	187.4	0.102
2002	102.0	0.069
2003	50.4	0.130
2004	27.9	0.143
2005	355.4	0.094
2006	276.3	0.078
2007	232.1	0.132
2008	209.2	0.139
2009	170.6	0.081
2010	78.4	0.086
2011	43.0	0.142
2012	20.6	0.132
2013	336.4	0.078
2014	257.4	0.094
2015	224.7	0.142
2016	201.3	0.126
2017	144.5	0.066
2018	63.3	0.107
2019	36.4	0.147
2020	11.8	0.117
2021	310.7	0.070
2022	244.2	0.112
2023	218.1	0.145
2024	191.3	0.108
2025	111.5	0.066
2026	53.1	0.125
2027	29.9	0.145
2028	360.0	0.100
2029	283.7	0.075
2030	234.6	0.128

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

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

WDS 00279+2220 FRV 1 : NOTES

discov_num	notes	refcode
FRV 1	LP 345-25. Assuming a parallactic distance of 13.19 +/- 0.28 pc
	(Gatewood & Coban 2009), Konopacky et al. (2010) derive a system mass	Gat2009
	of 0.121 +/- 0.009 Msun.	Kon2010
	Dupuy et al. (2010) determine system mass 0.120 +0.008/-0.007 Msun;
	spectral types are M7.5 +/- 1.0 and M8.0 +1.5/-1.0.	LiM2010b

REFERENCES

refcode	metd	author	reference
Dup2017	A j	Dupuy, T.J. & Liu, M.C.	2017ApJS..231...15D
Dup2017	+orb	ApJS 231, 15, 2017
Gat2009	-	Gatewood, G.D. & Coban, L.	2009AJ....137..402G
Gat2009		AJ 137, 402, 2009
Kon2010	Ag j	Konopacky, Q.M., Ghez, A.M., Barman, T.S., Rice, E.L., Bailey, III, J.I.,	2010ApJ...711.1087K
Kon2010		White, R.J., McLean, I.S., & Duchene, G.
Kon2010		ApJ 711, 1087, 2010

DISCOVERER

idgroup	discov	author
1	FRV	Forveille, T., Beuzit, J.-L., Delfosse, X., Segransan, D., Beck, F., Mayor, M.,
1	FRV	Perrier, C., Tokovinin, A., et al.
2	FRV	Forveille, T., Beuzit, J.-L., Delorme, P., Segransan, D., Delfosse, X.,
2	FRV	Chauvin, G., Fusco, T., Lagrange, A.-M., et al.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00279+2220	FRV 1		2004	2	7	0.1	17.50		M8V+M9V		002755.93+221932.8
00279+2220	FRV 1		2010	24	60	0.1	17.50		M7.5+M8.0	NOD	002755.93+221932.8
00279+2220	FRV 1		2012	34	20	0.1	10.15	10.46	M7.5+M8.0	NO K	002755.93+221932.8
00279+2220	FRV 1		2019	35	17	0.1	10.15	10.46	M7.5+M8.0	NO K	002755.93+221932.8
00279+2220	FRV 1		2021	36	259	0.1	10.15	10.46	M7.5+M8.0	NO K	002755.93+221932.8

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WDS 00279+2220 FRV 1 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 00279+2220 FRV 1 : MEASURES

No records found.

WDS 00279+2220 : VIRTUAL EYEPIECE

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WDS 00279+2220 : ALADIN DSS IMAGE @ 00^h 27^m 55.93^s +22° 19' 32.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 00279+2220 FRV 1 : 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		00279+2220	FRV 1		259	0.1
Show		00304+2206	DOO 24	AB	261	19.9	37
Show		00305+2208	HJ 1027		218	18.4	39
Show		00305+2246	DEA 36		232	117.0	45
Show		00287+2134	HU 601		308	0.7	47
Show		00309+2135	J 634		249	2.3	62
Show		00272+2115	BU 1225		190	1.4	65
Show		00324+2147	HDS 72		39	0.2	71
Show		00279+2334	BU 779		246	0.6	75
Show		00293+2334	POU 31		83	4.7	78
Show		00251+2112	SKF2458		102	8.2	79
Show		00227+2143	CVR 315		211	14.8	82
Show		00226+2140	HJ 1959		286	27.1	84
Show		00327+2312	BU 1310	AB	214	3.8	84
Show		00327+2312	BU 1310	AC	276	27.2	84
Show		00327+2312	BU 1310	AD	155	94.4	84
Show		00298+2345	TDS1490	AB	128	2.3	90
Show		00294+2348	POU 32		292	3.3	92
Show		00314+2102	CBL 7		228	12.5	93
Show		00312+2341	POU 34		158	9.1	93
Show		00217+2144	CVR 10		337	13.2	95
Show		00244+2058	AZC 3		324	31.7	95
Show		00269+2356	TDS1466		16	0.3	98
Show		00318+2346	COU 74		6	2.1	102
Show		00331+2333	POU 37		188	13.6	103
Show		00261+2359	HU 407		332	1.1	103
Show		00304+2357	POU 33		91	4.7	104
Show		00255+2402	SLW 19		109	10.9	108
Show		00254+2036	A 2301		228	2.8	110
Show		00253+2036	J 3246		18	0.3	111
Show		00324+2353	GRV 28		173	15.0	113
Show		00247+2407	POU 25		63	5.6	117
Show		00202+2129	J 630		114	2.8	119
Show		00365+2202	HU 410		319	3.4	121
Show		00251+2414	POU 26	AB	109	15.3	122
Show		00251+2414	POU 27	AC	57	4.8	122
Show		00282+2421	POU 29		44	9.6	122
Show		00275+2423	POU 28		216	15.0	124
Show		00297+2018	J 168	AB	172	1.5	124
Show		00297+2018	HJ 1976	AC	274	11.1	124
Show		00340+2354	CVR1047		355	3.2	127
Show		00374+2159	BRT2297		291	4.5	132
Show		00235+2418	CRC 1		254	2.3	134
Show		00345+2400	POU 38		166	5.7	136
Show		00376+2240	HU 411		107	0.7	136
Show		00260+2434	KPP 823		118	7.0	137
Show		00326+2018	HJ 1982		298	58.5	139
Show		00351+2357	SLW 32		32	135.4	139
Show		00236+2014	SKF2457		140	1.7	140
Show		00218+2411	POU 21		35	3.3	140
Show		00380+2229	GRV 34		222	57.2	141

WDS 00279+2220 : COMPONENTS

	A
B	pa=257.6° sep=0.09"

00279+2220 A

Componente originario normalizzato	AB		Coord arcsec 2000	002755.93+221932.8		Mag	10.15		Spectral class	M7.5 (red)
PmRA	400.00		PmDE	-177.0

00279+2220 B

Componente originario normalizzato	AB		Coord arcsec 2000	002755.92+221932.8		Mag	10.46		Spectral class	M8.0 (red)
Calc delta mag	0.31		Calc coord	yes