Gliese 436, a red dwarf star in Leo

Gliese 436 (HIP 57087)

Gliese 436 is a red dwarf star in the constellation Leo. At 33 light years away, it shines at an apparent visual magnitude of 10.67. It is moving through the Galaxy at a speed of 58.9 km/s relative to the Sun. Its projected Galactic orbit carries it between 17,900 and 34,000 light years from the center of the Galaxy. Gliese 436 has one confirmed planet know to date (early 2012).

Sky position: RA 11h 42.2m, Dec +26° 42.6'

Common designations: HIP 57087, Gliese 436, Ross 905

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Galactic Orbit of Gliese 436
(compared to the Sun)

E

ccentricity: 31.0% vs. 16.0%

Angle φ : 95.0°vs. 26.0°

Semi-major axis : 7,966 pc vs. 8,686 pc

Semi-minor axis: 7,574 pc vs. 8,574 pc

Focus-to-center

: 2,470 pcvs. 1,388 pc

Semilatus rectum : 7,200 pc vs. 8,464 pc

Perigalacticon: 5,496 pc vs. 7,297 pc

Apogalacticon

: 10,436 pcvs. 10,074 pc
  Some Tabulated XHIP Data for Gliese 436
(see also: SIMBAD)

Astrometry
2007A&A...474..653V

Position	Proper Motion
Right Ascension:	175.54378567° ±2.60 mas	896.07 ±2.89 mas/yr.
Declination:	26.70854783° ±1.63 mas	-813.54 ±1.77 mas/yr.
Galactic Longitude:	210.53368536°	895.52 mas/yr.
Galactic Latitude:	74.56690430°	814.15 mas/yr.

Parallax: 98.61 ± 2.33 mas

Spectrography

Spectral Type: M3.0V 2002AJ....123.2002H.

Radial Velocity: 9.61 ±0.10 km/s [A rating] 2002ApJS..141..503N.

Iron Abundance [Fe/H]: n/a

Photometry
 

band	magnitude	Abs. Mag.
U
B	12.16	12.13
V	10.67	10.64
R	9.58	9.55
I	8.24	8.21
J	6.90	6.87
H	6.32	6.29
K	6.07	6.04

B-V: +1.49 V-I: +2.43

Derivations

Heliocentric distance: 10.13 pc (2.4% margin of error)

Galactocentric distance: 7,402 pc

Transverse velocity: 58.1 km/s

3D heliocentric position and motion:

toward:	Galactic center	Galactic rotation	North Galactic Pole
Position ( X, Y, Z)	-2.3 pc	-1.4 pc	9.8 pc
Velocity (U, V, W)	52.1 km/s	-19.2 km/s	19.7 km/s