Exoplanet Records
Radial Velocity • 2017 • La Silla Observatory
| Property | Value | Description |
|---|---|---|
| ast_flag | 0 | |
| cb_flag | 0 | |
| dec | 7.59 deg | |
| decstr | +07d35m16.19s | Dec [sexagesimal] |
| default_flag | 1 | |
| disc_facility | La Silla Observatory | Discovery Facility |
| disc_instrument | HARPS Spectrograph | Discovery Instrument |
| disc_locale | Ground | Discovery Locale |
| disc_pubdate | 2017-12 | Discovery Publication Date |
| disc_refname | <a refstr=CLOUTIER_ET_AL__2017 href=https://ui.adsabs.harvard.edu/abs/2017A&A...608A..35C/abstract target=ref>Cloutier et al. 2017</a> | Discovery Reference |
| disc_telescope | 3.6 m ESO Telescope | Discovery Telescope |
| disc_year | 2017 | |
| discoverymethod | Radial Velocity | Discovery Method |
| dkin_flag | 0 | |
| elat | 4.02 deg | |
| elon | 170.17 deg | |
| etv_flag | 0 | |
| gaia_dr2_id | Gaia DR2 3910747531814692736 | Gaia DR2 ID |
| gaia_dr3_id | Gaia DR3 3910747531814692736 | Gaia DR3 ID |
| glat | 62.58 deg | |
| glon | 254.63 deg | |
| hd_name | — | HD ID |
| hip_name | — | HIP ID |
| hostname | K2-18 | Host Name |
| htm20 | -244884223 | |
| ima_flag | 0 | |
| micro_flag | 0 | |
| obm_flag | 0 | |
| pl_bmasse | 7.51 Mearth | |
| pl_bmasseerr1 | 1.33 Mearth | |
| pl_bmasseerr2 | -1.33 Mearth | |
| pl_bmasselim | 0 | |
| pl_bmassestr | 7.51±1.33 | Planet Mass or Mass*sin(i) [Earth Mass] |
| pl_bmassj | 0.02 Mjupiter | |
| pl_bmassjerr1 | 4.18e-3 Mjupiter | |
| pl_bmassjerr2 | -4.18e-3 Mjupiter | |
| pl_bmassjlim | 0 | |
| pl_bmassjstr | 0.0236±0.0042 | Planet Mass or Mass*sin(i) [Jupiter Mass] |
| pl_bmassprov | Msini | Planet Mass or Mass*sin(i) Provenance |
| pl_cmasse | — | |
| pl_cmasseerr1 | — | |
| pl_cmasseerr2 | — | |
| pl_cmasselim | — | |
| pl_cmassestr | — | Planet Mass*sin(i)/sin(i) [Earth Mass] |
| pl_cmassj | — | |
| pl_cmassjerr1 | — | |
| pl_cmassjerr2 | — | |
| pl_cmassjlim | — | |
| pl_cmassjstr | — | Planet Mass*sin(i)/sin(i) [Jupiter Mass] |
| pl_controv_flag | 1 | |
| pl_dens | — | |
| pl_denserr1 | — | |
| pl_denserr2 | — | |
| pl_denslim | — | |
| pl_densstr | — | Planet Density [g/cm**3] |
| pl_eqt | 363 K | |
| pl_eqterr1 | 14 K | |
| pl_eqterr2 | -14 K | |
| pl_eqtlim | 0 | |
| pl_eqtstr | 363±14 | Equilibrium Temperature [K] |
| pl_imppar | — | |
| pl_impparerr1 | — | |
| pl_impparerr2 | — | |
| pl_impparlim | — | |
| pl_impparstr | — | Impact Parameter |
| pl_insol | — | |
| pl_insolerr1 | — | |
| pl_insolerr2 | — | |
| pl_insollim | — | |
| pl_insolstr | — | Insolation Flux [Earth Flux] |
| pl_letter | c | Planet Letter |
| pl_masse | — | |
| pl_masseerr1 | — | |
| pl_masseerr2 | — | |
| pl_masselim | — | |
| pl_massestr | — | Planet Mass [Earth Mass] |
| pl_massj | — | |
| pl_massjerr1 | — | |
| pl_massjerr2 | — | |
| pl_massjlim | — | |
| pl_massjstr | — | Planet Mass [Jupiter Mass] |
| pl_msinie | 7.51 Mearth | |
| pl_msinieerr1 | 1.33 Mearth | |
| pl_msinieerr2 | -1.33 Mearth | |
| pl_msinielim | 0 | |
| pl_msiniestr | 7.51±1.33 | Planet Mass*sin(i) [Earth Mass] |
| pl_msinij | 0.02 Mjupiter | |
| pl_msinijerr1 | 4.18e-3 Mjupiter | |
| pl_msinijerr2 | -4.18e-3 Mjupiter | |
| pl_msinijlim | 0 | |
| pl_msinijstr | 0.0236±0.0042 | Planet Mass*sin(i) [Jupiter Mass] |
| pl_name | K2-18 c | Planet Name |
| pl_ndispec | 0 | |
| pl_nespec | 0 | |
| pl_nnotes | 3 | |
| pl_ntranspec | 0 | |
| pl_occdep | — | |
| pl_occdeperr1 | — | |
| pl_occdeperr2 | — | |
| pl_occdeplim | — | |
| pl_occdepstr | — | Occultation Depth [%] |
| pl_orbeccen | 0.47 | |
| pl_orbeccenerr1 | — | |
| pl_orbeccenerr2 | — | |
| pl_orbeccenlim | 1 | |
| pl_orbeccenstr | <0.47 | Eccentricity |
| pl_orbincl | — | |
| pl_orbinclerr1 | — | |
| pl_orbinclerr2 | — | |
| pl_orbincllim | — | |
| pl_orbinclstr | — | Inclination [deg] |
| pl_orblper | — | |
| pl_orblpererr1 | — | |
| pl_orblpererr2 | — | |
| pl_orblperlim | — | |
| pl_orblperstr | — | Argument of Periastron [deg] |
| pl_orbper | 8.96 day | |
| pl_orbpererr1 | 8.00e-3 day | |
| pl_orbpererr2 | -8.00e-3 day | |
| pl_orbperlim | 0 | |
| pl_orbperstr | 8.962±0.008 | Orbital Period [day] |
| pl_orbsmax | 0.06 au | |
| pl_orbsmaxerr1 | 3.00e-3 au | |
| pl_orbsmaxerr2 | -3.00e-3 au | |
| pl_orbsmaxlim | 0 | |
| pl_orbsmaxstr | 0.060±0.003 | Orbit Semi-Major Axis [au] |
| pl_orbtper | — | |
| pl_orbtpererr1 | — | |
| pl_orbtpererr2 | — | |
| pl_orbtperlim | — | |
| pl_orbtperstr | — | Epoch of Periastron [day] |
| pl_projobliq | — | |
| pl_projobliqerr1 | — | |
| pl_projobliqerr2 | — | |
| pl_projobliqlim | — | |
| pl_projobliqstr | — | Projected Obliquity [deg] |
| pl_pubdate | 2017-12 | Planetary Parameter Reference Publication Date |
| pl_rade | — | |
| pl_radeerr1 | — | |
| pl_radeerr2 | — | |
| pl_radelim | — | |
| pl_radestr | — | Planet Radius [Earth Radius] |
| pl_radj | — | |
| pl_radjerr1 | — | |
| pl_radjerr2 | — | |
| pl_radjlim | — | |
| pl_radjstr | — | Planet Radius [Jupiter Radius] |
| pl_ratdor | — | |
| pl_ratdorerr1 | — | |
| pl_ratdorerr2 | — | |
| pl_ratdorlim | — | |
| pl_ratdorstr | — | Ratio of Semi-Major Axis to Stellar Radius |
| pl_ratror | — | |
| pl_ratrorerr1 | — | |
| pl_ratrorerr2 | — | |
| pl_ratrorlim | — | |
| pl_ratrorstr | — | Ratio of Planet to Stellar Radius |
| pl_refname | <a refstr=CLOUTIER_ET_AL__2017 href=https://ui.adsabs.harvard.edu/abs/2017A&A...608A..35C/abstract target=ref>Cloutier et al. 2017</a> | Planetary Parameter Reference |
| pl_rvamp | 4.63 m/s | |
| pl_rvamperr1 | 0.72 m/s | |
| pl_rvamperr2 | -0.72 m/s | |
| pl_rvamplim | 0 | |
| pl_rvampstr | 4.63±0.72 | Radial Velocity Amplitude [m/s] |
| pl_trandep | — | |
| pl_trandeperr1 | — | |
| pl_trandeperr2 | — | |
| pl_trandeplim | — | |
| pl_trandepstr | — | Transit Depth [%] |
| pl_trandur | — | |
| pl_trandurerr1 | — | |
| pl_trandurerr2 | — | |
| pl_trandurlim | — | |
| pl_trandurstr | — | Transit Duration [hour] |
| pl_tranmid | — | |
| pl_tranmiderr1 | — | |
| pl_tranmiderr2 | — | |
| pl_tranmidlim | — | |
| pl_tranmidstr | — | Time of Conjunction (Transit Midpoint) [day] |
| pl_trueobliq | — | |
| pl_trueobliqerr1 | — | |
| pl_trueobliqerr2 | — | |
| pl_trueobliqlim | — | |
| pl_trueobliqstr | — | True Obliquity [deg] |
| pl_tsystemref | — | Time Reference Frame and Standard |
| ptv_flag | 0 | |
| pul_flag | 0 | |
| ra | 172.56 deg | |
| rastr | 11h30m14.43s | RA [sexagesimal] |
| releasedate | 2017-12-21 | Release Date |
| rowupdate | 2017-12-19 | Date of Last Update |
| rv_flag | 1 | |
| soltype | Published Confirmed | Solution Type |
| st_age | — | |
| st_ageerr1 | — | |
| st_ageerr2 | — | |
| st_agelim | — | |
| st_agestr | — | Stellar Age [Gyr] |
| st_dens | — | |
| st_denserr1 | — | |
| st_denserr2 | — | |
| st_denslim | — | |
| st_densstr | — | Stellar Density [g/cm**3] |
| st_logg | — | |
| st_loggerr1 | — | |
| st_loggerr2 | — | |
| st_logglim | — | |
| st_loggstr | — | Stellar Surface Gravity [log(cm/s**2)] |
| st_lum | — | |
| st_lumerr1 | — | |
| st_lumerr2 | — | |
| st_lumlim | — | |
| st_lumstr | — | Stellar Luminosity [log(Solar)] |
| st_mass | 0.36 Msun | |
| st_masserr1 | 0.05 Msun | |
| st_masserr2 | -0.05 Msun | |
| st_masslim | 0 | |
| st_massstr | 0.359±0.047 | Stellar Mass [Solar mass] |
| st_met | — | |
| st_meterr1 | — | |
| st_meterr2 | — | |
| st_metlim | — | |
| st_metratio | — | Stellar Metallicity Ratio |
| st_metstr | — | Stellar Metallicity [dex] |
| st_nphot | 0 | |
| st_nrvc | 0 | |
| st_nspec | 0 | |
| st_rad | 0.41 Rsun | |
| st_raderr1 | 0.04 Rsun | |
| st_raderr2 | -0.04 Rsun | |
| st_radlim | 0 | |
| st_radstr | 0.411±0.038 | Stellar Radius [Solar Radius] |
| st_radv | 0.65 km/s | |
| st_radverr1 | 9.00e-4 km/s | |
| st_radverr2 | -9.00e-4 km/s | |
| st_radvlim | 0 | |
| st_radvstr | 0.6537±0.0009 | Systemic Radial Velocity [km/s] |
| st_refname | <a refstr=CLOUTIER_ET_AL__2017 href=https://ui.adsabs.harvard.edu/abs/2017A&A...608A..35C/abstract target=ref>Cloutier et al. 2017</a> | Stellar Parameter Reference |
| st_rotp | 38.60 day | |
| st_rotperr1 | 0.50 day | |
| st_rotperr2 | -0.50 day | |
| st_rotplim | 0 | |
| st_rotpstr | 38.6±0.5 | Stellar Rotational Period [day] |
| st_spectype | — | Spectral Type |
| st_teff | 3457 K | |
| st_tefferr1 | 39 K | |
| st_tefferr2 | -39 K | |
| st_tefflim | 0 | |
| st_teffstr | 3457±39 | Stellar Effective Temperature [K] |
| st_vsin | — | |
| st_vsinerr1 | — | |
| st_vsinerr2 | — | |
| st_vsinlim | — | |
| st_vsinstr | — | Stellar Rotational Velocity [km/s] |
| sy_bmag | 14.99 mag | |
| sy_bmagerr1 | 0.03 mag | |
| sy_bmagerr2 | -0.03 mag | |
| sy_bmagstr | 14.991±0.032 | B (Johnson) Magnitude |
| sy_dist | 38.03 pc | |
| sy_disterr1 | 0.08 pc | |
| sy_disterr2 | -0.08 pc | |
| sy_diststr | 38.02660±0.07955 | Distance [pc] |
| sy_gaiamag | 12.42 mag | |
| sy_gaiamagerr1 | 5.02e-4 mag | |
| sy_gaiamagerr2 | -5.02e-4 mag | |
| sy_gaiamagstr | 12.415400±0.000502 | Gaia Magnitude |
| sy_gmag | 15.14 mag | |
| sy_gmagerr1 | 4.52e-3 mag | |
| sy_gmagerr2 | -4.52e-3 mag | |
| sy_gmagstr | 15.1354000±0.0045191 | g (Sloan) Magnitude |
| sy_hmag | 9.13 mag | |
| sy_hmagerr1 | 0.03 mag | |
| sy_hmagerr2 | -0.03 mag | |
| sy_hmagstr | 9.135±0.026 | H (2MASS) Magnitude |
| sy_icmag | — | |
| sy_icmagerr1 | — | |
| sy_icmagerr2 | — | |
| sy_icmagstr | — | I (Cousins) Magnitude |
| sy_imag | 11.86 mag | |
| sy_imagerr1 | 8.07e-4 mag | |
| sy_imagerr2 | -8.07e-4 mag | |
| sy_imagstr | 11.8579000±0.0008067 | i (Sloan) Magnitude |
| sy_jmag | 9.76 mag | |
| sy_jmagerr1 | 0.03 mag | |
| sy_jmagerr2 | -0.03 mag | |
| sy_jmagstr | 9.763±0.028 | J (2MASS) Magnitude |
| sy_kepmag | 12.47 mag | |
| sy_kepmagerr1 | — | |
| sy_kepmagerr2 | — | |
| sy_kepmagstr | 12.473 | Kepler Magnitude |
| sy_kmag | 8.90 mag | |
| sy_kmagerr1 | 0.02 mag | |
| sy_kmagerr2 | -0.02 mag | |
| sy_kmagstr | 8.899±0.019 | Ks (2MASS) Magnitude |
| sy_mnum | 0 | |
| sy_plx | 26.27 mas | |
| sy_plxerr1 | 0.05 mas | |
| sy_plxerr2 | -0.05 mas | |
| sy_plxstr | 26.2686000±0.0545906 | Parallax [mas] |
| sy_pm | 155.52 mas/yr | |
| sy_pmdec | -133.14 mas/yr | |
| sy_pmdecerr1 | 0.06 mas/yr | |
| sy_pmdecerr2 | -0.06 mas/yr | |
| sy_pmdecstr | -133.142000±0.063101 | Proper Motion (Dec) [mas/yr] |
| sy_pmerr1 | 0.07 mas/yr | |
| sy_pmerr2 | -0.07 mas/yr | |
| sy_pmra | -80.38 mas/yr | |
| sy_pmraerr1 | 0.08 mas/yr | |
| sy_pmraerr2 | -0.08 mas/yr | |
| sy_pmrastr | -80.3765000±0.0834003 | Proper Motion (RA) [mas/yr] |
| sy_pmstr | 155.5222618±0.0691090 | Total Proper Motion [mas/yr] |
| sy_pnum | 2 | |
| sy_refname | <a refstr=STASSUN_ET_AL__2019 href=https://ui.adsabs.harvard.edu/abs/2019AJ....158..138S/abstract target=ref>TICv8</a> | System Parameter Reference |
| sy_rmag | 13.09 mag | |
| sy_rmagerr1 | 2.18e-3 mag | |
| sy_rmagerr2 | -2.18e-3 mag | |
| sy_rmagstr | 13.0855000±0.0021847 | r (Sloan) Magnitude |
| sy_snum | 1 | |
| sy_tmag | 11.24 mag | |
| sy_tmagerr1 | 7.37e-3 mag | |
| sy_tmagerr2 | -7.37e-3 mag | |
| sy_tmagstr | 11.2373000±0.0073698 | TESS Magnitude |
| sy_umag | 16.72 mag | |
| sy_umagerr1 | 8.56e-3 mag | |
| sy_umagerr2 | -8.56e-3 mag | |
| sy_umagstr | 16.7222000±0.0085568 | u (Sloan) Magnitude |
| sy_vmag | 13.48 mag | |
| sy_vmagerr1 | 0.04 mag | |
| sy_vmagerr2 | -0.04 mag | |
| sy_vmagstr | 13.477±0.042 | V (Johnson) Magnitude |
| sy_w1mag | 8.77 mag | |
| sy_w1magerr1 | 0.02 mag | |
| sy_w1magerr2 | -0.02 mag | |
| sy_w1magstr | 8.769±0.023 | W1 (WISE) Magnitude |
| sy_w2mag | 8.67 mag | |
| sy_w2magerr1 | 0.02 mag | |
| sy_w2magerr2 | -0.02 mag | |
| sy_w2magstr | 8.668±0.020 | W2 (WISE) Magnitude |
| sy_w3mag | 8.55 mag | |
| sy_w3magerr1 | 0.03 mag | |
| sy_w3magerr2 | -0.03 mag | |
| sy_w3magstr | 8.552±0.025 | W3 (WISE) Magnitude |
| sy_w4mag | 8.59 mag | |
| sy_w4magerr1 | 0.38 mag | |
| sy_w4magerr2 | -0.38 mag | |
| sy_w4magstr | 8.587±0.379 | W4 (WISE) Magnitude |
| sy_zmag | 11.52 mag | |
| sy_zmagerr1 | 4.30e-3 mag | |
| sy_zmagerr2 | -4.30e-3 mag | |
| sy_zmagstr | 11.5166000±0.0043013 | z (Sloan) Magnitude |
| tic_id | TIC 388804061 | TIC ID |
| tran_flag | 0 | |
| ttv_flag | 0 | |
| x | -0.98 | |
| y | 0.13 | |
| z | 0.13 |