Kepler-443b

{{Infobox planet

| name = Kepler-443b

| discoverer = Guillermo Torres et al.

| discovery_site = Kepler

| discovered = January 7, 2015

| discovery_method = Transit method

| apsis = astron

| semimajor = {{convert|0.495|AU|km|abbr=on}}

| eccentricity = ≥0.11

| period = 177.6693 d

| inclination = 89.94

| time_periastron = JD 2455630.2460

| star = Kepler-443

| mean_radius = 2.33{{cite journal|doi=10.1088/0004-637X/800/2/99|arxiv=1501.01101|bibcode=2015ApJ...800...99T|title=Validation of 12 Smallkeplertransiting Planets in the Habitable Zone |year=2015 |last1=Torres |first1=Guillermo |last2=Kipping |first2=David M. |last3=Fressin |first3=Francois |last4=Caldwell |first4=Douglas A. |last5=Twicken |first5=Joseph D. |last6=Ballard |first6=Sarah |last7=Batalha |first7=Natalie M. |last8=Bryson |first8=Stephen T. |last9=Ciardi |first9=David R. |last10=Henze |first10=Christopher E. |last11=Howell |first11=Steve B. |last12=Isaacson |first12=Howard T. |last13=Jenkins |first13=Jon M. |last14=Muirhead |first14=Philip S. |last15=Newton |first15=Elisabeth R. |last16=Petigura |first16=Erik A. |last17=Barclay |first17=Thomas |last18=Borucki |first18=William J. |last19=Crepp |first19=Justin R. |last20=Everett |first20=Mark E. |last21=Horch |first21=Elliott P. |last22=Howard |first22=Andrew W. |last23=Kolbl |first23=Rea |last24=Marcy |first24=Geoffrey W. |last25=McCauliff |first25=Sean |last26=Quintana |first26=Elisa V. |journal=The Astrophysical Journal |volume=800 |issue=2 |page=99 |s2cid=8512655 }} {{Earth radius|link=y}}

|image=File:Kepler-443b.jpg}}

Kepler-443b is an exoplanet about 2,540 light-years from Earth.{{cite web|url=http://phl.upr.edu/projects/habitable-exoplanets-catalog/data|title=HEC: Data of Potentially Habitable Worlds|date=15 November 2017|publisher=Planetary Habitability Laboratory|accessdate=17 April 2018|archive-date=1 June 2012|archive-url=https://web.archive.org/web/20120601044944/http://phl.upr.edu/projects/habitable-exoplanets-catalog/data|url-status=dead}} It has an 89.9 percent chance of being in the star's habitable zone, yet only a 4.9 percent chance of being rocky.

Characteristics

= Mass, radius and temperature =

Kepler-443b has a mass of 6.04 Earth masses,{{Cite web|last=|first=|date=|title=Eyes on Exoplanets-Kepler-443b|url=https://exoplanets.nasa.gov/eyes-on-exoplanets/#/planet/Kepler-443_b/|archive-url=|archive-date=|access-date=|website=}} a radius of 2.33 Earth radii and a temperature of 247 kelvin.

= Host star =

Kepler-443b orbits a K-type star called Kepler-443, 2541 light-years away.

= Orbit =

Kepler-443b takes 177.6693 days to orbit its star, with an inclination of 89.94°, a semimajor axis of 0.495 AU and an eccentricity of at least 0.11.

Habitability

Kepler-443b may be habitable, but the planet has only a 4.9 percent chance of being rocky. The planet is much more likely to be a water world or a Mini-Neptune.

References

Category:Exoplanets discovered in 2015

Category:Exoplanets discovered by the Kepler space telescope

Category:Transiting exoplanets

Category:Super-Earths in the habitable zone

Category:Cygnus (constellation)