Planet GJ 3470 b
| Name | GJ 3470 b | ||
| Planet Status | Confirmed | ||
| 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
- Simbad
- Most recent references (ADS)
Related publications
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2017
MOLLIERE P., van BOEKEL R., BOUWMAN J., HENNING Th., LAGAGE P.-O. & MIN M.
Astron. & Astrophy., 600, A10
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Trends in Atmospheric Properties of Neptune-Size Exoplanets
2017
CROSSFIELD I. & KREIDBERG L.
arxiv
The GTC exoplanet transit spectroscopy survey. VI. A spectrally-resolved Rayleigh scattering slope in GJ 3470b
2017
CHEN G., GUENTHER E., PALLE E., NORTMANN L., NOWAK G. et al.
Astron. & Astrophys., 600, A138
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
Transit timing variation and transmission spectroscopy analyses of the hot Neptune GJ3470b
2016
AWIPHAN S., KERINS E., PICHADEE S., KOMONJINDA S., DHILLON V. et al.
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2016
WEINBERGER A., BOSS A., KEISER S., ANGLADA-ESCUDE G., THOMPSON I. & BURLEY G.
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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
Using near infra-red spectroscopy for characterization of transiting exoplanets
2015
ARONSON E., WALDEN P. & PISKUNOV N.
Astron. & Astrophys., 578, A133
paper arxiv ADS
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
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Exoplanetary Geophysics -- An Emerging Discipline
2015
LAUGHLIN G. & LISSAUER J.
Review Chapter in Treatise on Geophysics, accepted
arxiv
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
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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
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
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
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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
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
