Planet GJ 3470 b

Name GJ 3470 b
Discovered in 2012
Mass 0.0437533292587 ( -0.00513931672341 +0.00514531263071 ) MJ
Mass*sin(i) 0.0437340716735 (± 0.00512852782934) MJ +
Semi-Major Axis 0.03557 (± 0.001) AU +
Orbital Period 3.33671 (± 5e-05) JD +
Eccentricity
ω
Tperi
Radius 0.3738074294 (± 0.0526363683404) RJ +
Inclination 88.3 (± 0.5) deg
Update 2013-11-05
Detection Method Primary Transit
Mass Detection Method
Radius Detection Method
Molecules
Primary transit 2456090.4769 (± 0.00015) JD
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

GJ 3470
Name GJ 3470
Distance 29.28 ( -1.7 +2.1 ) pc +
Spectral type M1.5
Apparent magnitude V 12.27
Mass 0.539 (± 0.047) MSun +
Age 1.0 ( -0.7 +0.7 ) Gyr
Effective temperature 3600.0 (± 100.0) K +
Radius 0.55 (± 0.012) RSun +
Metallicity [Fe/H] 0.2 (± 0.1)
Detected Disc
Magnetic Field
RA2000 07:59:06.0
Dec2000 +15:23:30
Alternate Names
Planetary system 1 planet

More data


Related publications

Trigonometric Parallaxes and Proper Motions of 134 Southern Late M, L, and T Dwarfs from the Carnegie Astrometric Planet Search Program
2016 WEINBERGER A., BOSS A., KEISER S., ANGLADA-ESCUDE G., THOMPSON I. & BURLEY G.
Astron. J., accepted
arxiv  

Energy-limited escape revised. The transition from strong planetary winds to stable thermospheres
2016 SALZ M., SCHNEIDER P., CZESLA S. & SCHMITT J.
Astron. & Astrophys., 585, L2
paper   arxiv   ADS  

Marginalising instrument systematics in HST WFC3 transit lightcurves
2016 WAKEFORD H., SING D., EVANS T.,DEMING D. & MANDELL A.
ApJ, accepted
arxiv  

Exoplanetary Geophysics -- An Emerging Discipline
2015 LAUGHLIN G. & LISSAUER J.
Review Chapter in Treatise on Geophysics, accepted
arxiv  

Rayleigh Scattering in the Atmosphere of the Warm Exo-Neptune GJ 3470b
2015 DRAGOMIR D., BENNEKE B., PEARSON K., CROSSFIELD I. et al.
ApJ, 814, 102
paper  arxiv  ADS

Using near infra-red spectroscopy for characterization of transiting exoplanets
2015 ARONSON E., WALDEN P. & PISKUNOV N.
Astron. & Astrophys., 578, A133
paper  arxiv  ADS

Understanding the Mass-Radius Relation for Sub-Neptunes: Radius as a Proxy for Composition
2014 LOPEZ E. & FORTNEY J.
ApJ, 792, 1
paper   arxiv   ADS  

The atmospheric chemistry of the warm Neptune GJ 3470b: influence of metallicity and temperature on the CH4/CO ratio
2014 VENOT O., AGUNDEZ M., SELSIS F., TESSENYI M. & IRO N.
Astron. & Astrophys., 562, A51
paper  arxiv 

Near-infrared transmission spectrum of the warm-uranus GJ 3470b with the Wide Field Camera-3 on the Hubble Space Telescope
2014 EHRENREICH D., BONFILS X., LOVIS Ch., DELFOSSE X., FORVEILLE Th. et al.
Astron. & Astrophys., 570, A89
paper  arxiv 

Warm Ice Giant GJ 3470b. II Revised Planetary and Stellar Parameters from Optical to Near-infrared Transit Photometry
2014 BIDDLE L., PEARSON K., CROSSFIELD I., FULTON B., CICERI S. et al.
ApJ, submitted
arxiv  

The blue sky of GJ3470b: the atmosphere of a low-mass planet unveiled by ground-based photometry
2013 NASCIMBENI V., PIOTTO G., PAGANO I., SCANDARIATO G., SANI E. & FUMANA M.
Astron. & Astrophys., 559, A32
paper  arxiv 

Warm Ice Giant GJ 3470b. I. A Flat Transmission Spectrum Indicates a Hazy, Low-methane, and/or Metal-rich Atmosphere
2013 CROSSFIELD I., BARMAN, T. HANSEN B. &HOWARD A.
Astron. & Astrophys., 559, A33
paper  arxiv 

Spitzer Observations of GJ3470b: a Very Low-density Neptune-size Planet Orbiting a Metal-rich M dwarf
2013 DEMORY B.-O., TORRES G., NEVES V., ROGERS L., GILLON M. & 11 additional authors
ApJ, submitted
arxiv  

A hot Uranus transiting the nearby M dwarf GJ3470. Detected with HARPS velocimetry. Captured in transit with TRAPPIST photometry
2012 BONFILS X., GILLON M., UDRY S., ARMSTRONG D., BOUCHY F. & 13 additional authors
Astron. & Astrophys., 546, A27
paper   arxiv