Planet Proxima Centauri c

Name Proxima Centauri c
Planet Status Confirmed
Discovered in 2019
Mass 0.03 ( -0.005 +0.005 ) MJ
Mass*sin(i) 0.022 (± 0.003) MJ
Semi-Major Axis 1.48 (± 0.08) AU
Orbital Period 1928.0 (± 20.0) day +
Eccentricity 0.0
ω
Tperi 2456202.0 (± 21.0) JD
Radius
Inclination 133.0 (± 1.0) deg
Update 2020-06-17
Detection Method Radial Velocity
Mass Detection Method Astrometry
Radius Detection Method
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K 1.2 (± 0.4) m/s
Calculated temperature 39.0 ( -1.6 +1.8 ) K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

Proxima Centauri
Name Proxima Centauri
Distance 1.295 pc
Spectral type M5.5V
Apparent magnitude V 11.13
Mass 0.12 (± 0.015) MSun
Age
Effective temperature 3050.0 (± 100.0) K
Radius 0.141 (± 0.021) RSun
Metallicity [Fe/H]
Detected Disc
Magnetic Field
RA2000 14:29:42.9
Dec2000 -63:10:10
Alternate Names alpha Cen C, GL 551, HIP 70890
Planetary system
2 planets

More data


Related publications

The Copernican Principle Rules Out BLC1 as a Technological Radio Signal from the Alpha Centauri System
2021 SIRAJ A. & LOEB A.
arxiv

The Single-mode Complex Amplitude Refinement (SCAR) coronagraph: II. Lab verification, and toward the characterization of Proxima b
2020 HAFFERT S., POR E., KELLER C., KENWORTHY M., DOELMAN D., SNIK F. & ESCUTI M.
Astron. & Astrophys., 635, A56
paper  arxiv  

A Moving Target—Revising the Mass of Proxima Centauri c
2020 BENEDICT F. & McARTHUR B.
Res. Notes AAS, 4, 86
paper

Proxima Centauri -- the nearest planet host observed simultaneously with AstroSat, Chandra and HST
2020 LALITHA S., SCHMITT J., SINGH K., SCHNEIDER P., PARKE LOYD R. et al.
MNRAS, 498, 3658
paper  arxiv  

An Earth-like stellar wind environment for Proxima Centauri c
2020 ALVARO-GOMEZ J., DRAKE J., GARRAFFO C., COHEN O., POPPENHÄGER K. et al.
ApJ. Letters, accepted
arxiv  

EvryFlare III: Temperature Evolution and Habitability Impacts of Dozens of Superflares Observed Simultaneously by Evryscope and TESS
2020 HOWARD W., CORBELT H., LAW N., RATZLOFF J., GALLIHER N. et al.
ApJ, 902, 115
paper    arxiv

The large-scale magnetic field of Proxima Centauri near activity maximum
2020 KLEIN S., DONATI J.-F., HEBRARD E., ZAIR B., FOLSOM C. et al.
MNRAS, in press
paper   arxiv  

Monitoring the radio emission of Proxima Centauri
2020 PERZ-TORRES M., GOMEZ J., ORTIZ J., LETO P. et al.
Astron. & Astrophys., accepted
arxiv

A Flare-Type IV Burst Event from Proxima Centauri and Implications for Space Weather
2020 ZIC A., MURPHY T., LYNCH Ch., HEALD G., LENC E. et al.
ApJ
paper   arxiv

Searching for a cometary belt around Trappist-1 with ALMA
2020 MARINO S., WYATT M., KENNEDY G., KAMA M., MATRA L. et al.
MNRAS, 492, 6067
paper  arxiv  

Diverse outcomes of planet formation and composition around low-mass stars and brown dwarfs
2020 MIGUEL Y., CRIDLAND A., ORMEL C., FORTNEY J. & IDA S.
MNRAS, 491, 1998
paper  arxiv  

A low-mass planet candidate orbiting Proxima Centauri at a distance of 1.5 au
2020 DAMASSO M., DEL SORDO F., ANGLADA-ESCUDE G., GIACOBBE P., SOZZETTI A. et al.
Science Advance, 6, eaax7467
paper

Orbital inclination and mass of the exoplanet candidate Proxima c
2020 KERVELLA P., ARENOU F. & SCHNEIDER J.
Astron. & Astrophys., 635, L14
paper   arxiv

Expectations for the confirmation of Proxima c from a long-term radial velocity follow-up
2020 DAMASSO M. & DEL SORDO F.
MNRAS, 494, 1387
paper   arxiv

A Preliminary Mass for Proxima Centauri C
2020 BENEDICT F. & McARTHUR B.
Res. Notes AAS, 4, 46
paper

Searching for the near infrared counterpart of Proxima c using multi-epoch high contrast SPHERE data at VLT
2020 GRATTON R., ZURLO A., LE COROLLER H., DAMASSO M., DELSORLO F. et al.
Astron. & Astrophys., 638, A120
paper   arxiv

Revisiting Proxima with ESPRESSO
2020 MASCARENO A., FARIA J., FIGUEIRA P., LOVIS Ch., DAMASSO M. et al.
Astron. & Astrophys., 639, A77
paper   arxiv

Directly testing gravity with Proxima Centauri
2019 BANIK I. & KROUPA P.
MNRAS, 487, 1653
paper  arxiv  

Flaring activity of Proxima Centauri from TESS observations: quasi-periodic oscillations during flare decay and inferences on the habitability of Proxima b
2019 VIDA K., OLAH K., KOVARI Zs., van DRIEL-GESZTELYI L. & MOOR A.
ApJ, 884, 160
paper  arxiv  

Model of the Search For Extraterrestrial Intelligence with Coronagraphic Imaging
2019 VIDES Ch., MACINTOSH B., BINDER B., DE ROSA R., RUFFIO J.-B. & SAVRANSKY D.
Astron. J., 158, 207
paper  arxiv  

Observation of a possible superflare on Proxima Centauri
2019 KIELKOPF J., HART Rh., CARTER B. & MARSDEN S.
MNRAS, 486, L31
paper  arxiv  

NEAR: First Results from the Search for Low-Mass ­Planets in a Cen
2019 KASPER M., ARSENAULT R., KÄFT U., JAKOB G., LEVERATTO S. et al.
The Messenger, 178, 5
paper  

ALMA Discovery of Dust Belts Around Proxima Centauri
2017 ANGLADA G., AMADO P., ORTIZ J., GOMEZ J., MACIAS E. et al.
ApJ Lett, 850, L6
paper  arxiv  

Proxima reloaded: Unravelling the stellar noise in radial velocities
2016 DAMASSO M. & DEL SORDO F.
Astron. & Astrophy., 599, A126
paper  arxiv  ADS

Perturbation of Compact Planetary Systems by Distant Giant Planets
2016 HANSEN, B.
MNRAS, submitted
arxiv  paper   ADS  

Interferometric Astrometry of Proxima Centauri and Barnard's Star Using Hubble Space Telescope Fine Guidance Sensor 3: Detection Limits for sub-Stellar Companions.
1999 BENEDICT F., MCARTHUR B., CHAPPELL D., NELAN E., JEFFERYS W., Van ALTENA W., LEE J., CORNELL D., SHELUS D., HEMENWAY P., FRANZ O., WASSERMAN L., DUNCOMBE R., STORY A., WHIPPLE A. & FREDRICK L.
Astron. J.,, 118, 1086
paper  

A possible companion to Proxima Centauri
1998 SCHULTZ A., HART H., HERSHEY J., HAMILTON F., KOCHTE M., BRUHWEILER F., BENEDICT G., CALDWELL J., CUNNINGHAM C., NAILONG WU., FRANZ O., KEYES C. & BRANDT J.
Astron. J., 115, 345
paper