Name | Proxima Centauri c | ||
Planet Status | Controversial | ||
Discovered in | 2019 | ||
Mass | 0.0245 ( -0.0084 +0.0087 ) MJ | ![]() |
|
Mass*sin(i) | 0.0179 (± 0.006) 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 | 2022-07-29 | ||
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 | — |
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 | -62:40:46 | ||
Alternate Names | alpha Cen C, GL 551, HIP 70890 | ||
Planetary system | 2 planets |
Delivery of icy planetesimals to inner planets in the Proxima Centauri planetary system
2023
IAPTOV S.
Meteor. & Plan. Sci., in press
paper
Synergies Between Venus & Exoplanetary Observations
2023
WAY M., OSTBERG C., FOLEY B., GILLMANN C., HÖNING D. et al.
Spa. Sci. Rev., 219, 13
paper arxiv
Optical properties of the solar gravity lens
2022
ENGELI S. & SAHA P.
MNRAS, in press
paper
Automatic model-based telluric correction for the ESPRESSO data reduction software. Model description and application to radial velocity computation
2022
ALLART Ch., LOVIS C., FARIA J., DUMUSQUE X., SOSNOWSKA D. et al.
Astron. & Astrophys., accepted
arxiv
Line-by-line velocity measurements, an outlier-resistant method for precision velocimetry
2022
ARTIGAU E., CADIEUX Ch., COOK N., DOYON R., VANDAL Th. et al.
Astron. J., accepted
arxiv
The strong suppression of Galactic cosmic rays reaching AU Mic b, c and Prox Cen b
2022
MESQUITA A., RODGERS-LEE D., VIDOTTO A. & KAVANAGH R.
MNRAS, 515, 1218
paper arxiv
Cost-Optimal System Performance Maps for Laser-Accelerated Sailcraft
2022
PARKIN K.
arxiv
The high energy spectrum of Proxima Centauri simultaneously observed at X-ray and FUV wavelengths
2022
FUHRMEISTER B., ZISIK A., SCHNEIDER P., ROBRADE J., SCHMITT J. et al.
Astron. & Astrophys., in press
paper arxiv
Deceleration of Exoplanet Missions Utilizing Scarce Antimatter
2022
JACKSON G.
Acta Astronaut., in press
paper
Habitable planet formation around low-mass stars: Rapid accretion, rapid debris removal and the essential contribution of external giants
2022
CLEMENT M., QUINTANA E. & QUARLES B.
ApJ, 928, 91
paper arxiv
Stellar and substellar companions from Gaia EDR3 -- Proper motion anomaly and resolved common proper motion pairs
2022
KERVELLA P., ARENOU F. & THEVENIN F.
Astron. & Astrophys., 657, A7
paper arxiv
AlH lines in the blue spectrum of Proxima Centauri
2022
PAVLENKO Y., TENNYSON J., YURCHENKO S., SCHMIDT M., JONES H. et al.
MNRAS, 516, 5655
paper
A radio technosignature search towards Proxima Centauri resulting in a signal of interest
2021
SMITH Sh., PRICE D., SHEIKH S., CZECH D., CROFT S. et al.
Nature Astronomy, 5, 1148
paper arxiv
Monitoring the radio emission of Proxima Centauri
2021
PEREZ-TORRES M., GOMEZ J., ORTIZ J., LETO P. et al.
Astron. & Astrophys., 645, A77
paper arxiv
The Copernican Principle Rules Out BLC1 as a Technological Radio Signal from the Alpha Centauri System
2021
SIRAJ A. & LOEB A.
arxiv
A Search for Optical Laser Emission from Proxima Centauri
2021
MARCY G.
MNRAS, 505, 3537
paper arxiv
Discovery of an Extremely Short Duration Flare from Proxima Centauri Using Millimeter through Far-ultraviolet Observations
2021
MACGREGOR M., WEINBERGER A., PARKE LOYD R., SHKOLNIK E., BARCLAY Th. et al.
ApJ. Letters, 911, L25
paper
Stellar and substellar companions from Gaia DR2
2021
KERVELLA P., ARENOU F., MIGNARD F., THEVENIN F., SCHNEIDER J. et al.
SF2A 2021
paper
No Transits of Proxima Centauri Planets inHigh-Cadence TESS Data
2021
GILBERT E., BARCLAY Th., KRUSE E., QUINTANA E. & WALKOWICZ L.
Front. Astron. Space Sci., accepted
arxiv
Laser Communication with Proxima and Alpha Centauri using the Solar Gravitational Lens
2021
MARCY G., TELLIS N. & WISHNOW E.
MNRAS, accepted
arxiv
Analysis of the Breakthrough Listen signal of interest blc1 with a technosignature verification framework
2021
SHEIKH S., SMITH Sh., PRICE D., DEBOER D., LACKI B. et al.
Nature Astronomy, 5, 1153
paper arxiv
No Redetections of blc1 in 39 hr of Reobservation Campaigns of Proxima Centauri
2021
SHEIKH S., SMITH Sh., PRICE D., LEBOFSKY M., SEMEION A., CORDES J. et al.
Res. Notes AAS., 5, 248
paper
Orbital Stability of Planet-hosting Triple-star Systems according to Hill: Applications to Alpha Centauri and 16 Cygni
2021
BOYLE L. & CUNTZ M.
Res. Notes AAS, 5, 285
paper
Delivery of water and volatiles to planets in the habitable zone in the Proxima Centauri system
2021
IPATOV S.
BAAS, 53, 126
paper
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
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
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
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
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
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
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
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
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
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
Directly testing gravity with Proxima Centauri
2019
BANIK I. & KROUPA P.
MNRAS, 487, 1653
paper arxiv
The gravitational mass of Proxima Centauri measured with SPHERE from a microlensing event
2018
ZURLO A., GRATTON R., MESA D., DESIDERA S., ENIA A. et al.
MNRAS, 480, 236
paper
arxiv
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
A Strategic Roadmap to Centauri
2005
JOHNSON L., HARRIS D., TRAUSCH A., MATLOFF G., TAYLOR T. & CUTTING K.
JBIS, 58, 316
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
Precise radial velocities of Proxima Centauri. Strong constraints on a
substellar companion.
1999
KÜRSTER M., HATZES A., COCHRAN W., S. DOEBEREINER S., DENNERL K.
& ENDL M.
Astron. & Astrophys., 344, L5
paper
AES
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
Parallaxes, Proper Motions and Low-mass Companion
Detection Limits for Proxima Centauri and Barnard's Star
1997
BENEDICT F., McARTHUR B., JEFFERYS W., NELAN E., van ALTENA W. et al.
BAAS, 29, 1316
ADS
Continuation of An Astrometric Search for Planetary Companions to Proxima Centauri
1996
BENEDICT G.
HST Proposa, ID 6768. Cycle
arxiv
Mass Detection Limits for Planetary Companions to Barnard's Star and Proxima Centauri
1995
BENEDICT G., McARTHUR B., WIPPLE A., NELAN E., STORY D. et al.
BAAS, 27, 1381
ADS
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Astrometric Search for Planets Near Proxima Centauri: A Status Report (10/95)
1995
BENEDICT G., McARTUR B., NELAN E., STORY D., WIPPLE A. et al.
BAAS, 27, 1158
arxiv