GJ 3685A

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GJ 3685 A
Observation data Epoch J2000 Equinox J2000
Constellation	Leo
Right ascension	11^h 47^m 40.748^s
Declination	+00° 15′ 20.19″
Apparent magnitude (V)	13.25
Characteristics
Spectral type	m4
U−B color index	?
B−V color index	?
Variable type	None
Astrometry

Proper motion (μ)	RA: -311 mas/yr Dec.: -101 mas/yr
Absolute magnitude (M_V)	15.3

Distance	45 ly
Details

Mass	? M_☉
Radius	? R_☉
Luminosity	? L_☉
Temperature	? K
Metallicity	?
Rotation	?
Age	? years

Other designations
2MASS J11474074+0015201, LP 613-49, MGC 24663, LTT 13239, USNO-B1.0 0902-00204368.

GJ 3685 A is the primary companion of GJ 3685 it's a very old red dwarf star.

References

"GJ 3685 A -- Flare Star". SIMBAD Astronomical Database. Centre de données astronomiques de Strasbourg.
"GJ 3685A". Astronomy: Stars and Planets. Jumk.de.

← Star systems within 50–55 light-years →

Star systems (including brown dwarf systems) within 50–55 light-years from Earth.

A V (White)	Castor (51.6 ± 1.0 ly; 6 stars)

F
(Yellow-white)

IV	Delta Aquilae «Denebokab» (50.1 ± 0.6 ly; 3 stars) I Carinae (52.9 ± 0.4 ly; 1 star) Beta Cassiopeiae «Caph» (54.5 ± 0.5 ly; 2 stars)

V	Phi² Ceti (50.4 ± 0.8 ly; 1 star) Sigma Boötis «Hemelein Secunda» (50.4 ± 0.6 ly; 2 stars) 99 Herculis (50.5 ± 0.6 ly; 3 stars) Tau Boötis (50.9 ± 0.6 ly; 2 stars, 1 planet: b) Chi Herculis (51.7 ± 0.4 ly; 1 star) Xi Pegasi (53.0 ± 0.7 ly; 2 stars) 10 Ursae Majoris (53.0 ± 0.9 ly; 2 stars) Alpha Circini (53.5 ± 0.5 ly; 2 stars)

G V
(Yellow)

51 Pegasi (50.1 ± 0.6 ly; 1 star, 1 planet: b «Bellerophon»)
GJ 3233 (50.2+6.0
−4.9 ly; 1 star)
Gliese 758 (50.5 ± 0.5 ly; 1 star, 1 brown dwarf: B)
HD 38858 (50.8 ± 0.9 ly; 1 star, 1 planet: b)
HR 8323 (51.0 ± 0.6 ly; 1 star)
104 Tauri (51.8 ± 0.8 ly; 2 stars)
Gliese 777 (51.8 ± 0.5 ly; 3 stars, 2 planets: c
b)
GJ 3781 (52.3 ± 1.2 ly; 2 stars)
HR 3138 (52.8 ± 0.4 ly; 3 stars)
9 Puppis (53.4 ± 0.8 ly; 2 stars)
Psi⁵ Aurigae (53.9 ± 0.6 ly; 1 star)
HD 53705/53706/53680 (53.9 ± 0.9 ly; 4 stars)
HR 5273 (54.1 ± 0.7 ly; 2 stars)
HR 2225 (54.5 ± 0.7 ly; 1 star)
39 Tauri (54.6 ± 0.8 ly; 2 stars)
Gliese 295 (54.8 ± 0.7 ly; 1 star)
HR 2721 (55.0 ± 0.6 ly; 1 star)

K V
(Orange)

HR 159 (50.2 ± 0.8 ly; 2 stars)
Gliese 156 (50.3 ± 0.9 ly; 1 star)
Gliese 862 (50.4 ± 0.8 ly; 1 star)
Gliese 227 (50.4 ± 0.7 ly; 1 star)
HD 135599 (50.8 ± 0.8 ly; 1 star)
Gliese 778 (50.8 ± 0.7 ly; 1 star)
GJ 1175 (50.9 ± 0.6 ly; 1 star)
Gliese 782 (51.1 ± 1.2 ly; 1 star)
Gliese 397 (51.1 ± 1.0 ly; 1 star)
HD 113538 (51.2 ± 1.1 ly; 1 star, 2 planets: b
c)
HD 139763 (51.3 ± 1.1 ly; 1 star)
Gliese 157 (51.4 ± 1.7 ly; 3 stars)
Gliese 619 (51.9 ± 0.7 ly; 1 star)
Gliese 112.1 (51.9 ± 1.3 ly; 1 star)
Gliese 156.2 (52.1 ± 0.7 ly; 1 star)
Gliese 462 (52.2 ± 1.1 ly; 1 star)
Gliese 3 (52.2 ± 0.7 ly; 1 star)
Gliese 32 (52.3 ± 1.4 ly; 2 stars)
Gliese 472 (52.8 ± 0.5 ly; 1 star)
Gliese 824 (52.8 ± 0.9 ly; 1 star)
Gliese 152 (52.9 ± 0.6 ly; 1 star)
Gliese 143 (53.4 ± 1.3 ly; 1 star)
GJ 1177 (53.4 ± 2.7 ly; 2 stars)
Gliese 826.1 (53.4 ± 1.2 ly; 1 star)
Gliese 247 (53.5 ± 1.2 ly; 1 star)
BY Draconis (53.6 ± 0.6 ly; 1 star)
Gliese 531 (53.6 ± 0.8 ly; 1 star)
Gliese 322 (53.8 ± 1.3 ly; 1 star)
Gliese 553 (53.9 ± 1.4 ly; 1 star)
HD 128311 (54.0 ± 0.9 ly; 1 star, 2 planets: b
c)
Gliese 795 (54.5 ± 2.0 ly; 2 stars)
A 2329 (54.6 ± 1.1 ly; 2 stars)
GJ 1181 (54.8 ± 2.5 ly; 2 stars)
Gliese 786 (54.8 ± 0.7 ly; 1 star)
HD 7924 (54.9 ± 0.5 ly; 1 star, 1 planet: b)
Gliese 895.4 (55.0 ± 0.6 ly; 1 star)
Gliese 200 (55.0 ± 1.6 ly; 2 stars)

M V (Red dwarf)	GJ 3685/3686 (50.7+11.8 −8.0 ly; 2 stars) GJ 1062 (52.3 ± 2.9 ly; 1 star) HD 179930 (52.5 ± 1.7 ly; 2 stars) GJ 1264 (52.6 ± 2.1 ly; 1 star) Gliese 676 (53.7 ± 1.5 ly; 2 stars, 4 planets: Ad Ae Ab Ac) GJ 1049 (53.9 ± 1.2 ly; 1 star)

White
dwarf

DA	BPM 37093 (53.5+9.7 −7.1 ly; 1 star)

Brown
dwarf

WISE 0614+3912 (~50.2 ly; 1 brown dwarf)
WISE 1617+1807 (~50.2 ly; 1 brown dwarf)
WISE 1627+3255 (~50.2 ly; 1 brown dwarf)
WISE 0542-1628 (~50.6 ly; 1 brown dwarf)
WISE 1124-0421 (~50.6 ly; 1 brown dwarf)
WISE 2015+6646 (~50.6 ly; 1 brown dwarf)
WISE 1519+7009 (~50.9 ly; 1 brown dwarf)
WISE 0325-3854 (~51.2 ly; 1 brown dwarf)
WISE 2342+0856 (~51.2 ly; 1 brown dwarf)
WISE 0614+0951 (~51.5 ly; 1 brown dwarf)
WISE 0750+2725 (~51.5 ly; 1 brown dwarf)
WISE 0906+4735 (~51.5 ly; 1 brown dwarf)
WISE 1906+4508 (~51.5 ly; 1 brown dwarf)
WISE 1457+5815 (~52.2 ly; 1 brown dwarf)
WISE 2319-1844 (~52.2 ly; 1 brown dwarf)
WISE 1622-0959 (52.2 ± 6.5 ly; 1 brown dwarf)
WISE 1042-3842 (~53.2 ly; 1 brown dwarf)
WISE 2237-0614 (~53.5 ly; 1 brown dwarf)
WISE 0241-3653 (~53.8 ly; 1 brown dwarf)
WISE 0656+4205 (~54.1 ly; 1 brown dwarf)
WISE 2348-1028 (~54.1 ly; 1 brown dwarf)
WISE 1804+3117 (54.4+12.2
−8.4 ly; 1 brown dwarf)
WISE 0148+7202 (54.4+19.8
−11.4 ly; 1 brown dwarf)
WISE 0333-5856 (~54.8 ly; 1 brown dwarf)
WISE 2357+1227 (~54.8 ly; 1 brown dwarf)

In left column are stellar classes of primary members of star systems. Bold are systems containing at least one component with absolute magnitude of +8.5 or brighter. Italic are systems without known trigonometric parallax.

v t e Stars of Leo

Bayer	α (Regulus) β (Denebola) γ (Algieba) δ (Zosma) ε (Algenubi) ζ (Adhafera) η θ (Chertan) ι κ (Al Minliar al Asad) λ (Alterf) μ (Rasalas) ν ξ ο (Subra) π ρ σ τ υ φ χ ψ ω

Flamsteed	3 6 7 8 9 10 11 12 13 15 18 19 20 21 22 23 31 34 35 37 39 40 42 43 44 45 46 48 49 50 51 52 53 54 55 56 58 59 60 61 62 64 65 67 69 71 72 73 75 76 79 80 81 83 85 86 87 88 89 90 92 93 95 18 LMi 37 Sex 52 LMi

Variable	R S X Y RR RZ SS ST TU TV UV UZ XY XZ AD AM AP AQ CE DH DK DN DP DR DX DY EE EO EX GX HN

HR	3723 3736 3792 3804 3820 3869 3876 3926 3938 3942 3969 4006 4012 4032 4048 4097 4197 4244 4245 4249 4253 4303 4341 4358 4394 4404 4419 4459 4465 4512 4531 4535 4543

HD	81040 84680 86986 88133 89307 95989 96063 96372 97658 99109 100456 100659 100777 102272

Gliese	Gliese 408 Gliese 410 Gliese 436 GJ 3685A

Other	BD+20°2457 IRC +10216 2MASSI J0937347+293142 PG 1031+234 PSR B0919+06 PSR B0943+10 PSR B0950+08 PSR B1133+16 PSR J1022+1001 SDSS J102915+172927 WD 1105-048 Wolf 359

List

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