THE CONFIRMED CATALOGUE
Ultra-short period
Planets that circle their stars in less than one Earth day.
Size bands are browsing aids, not confirmed compositions. Radius: rocky-size <1.25, super-Earth 1.25–<2, Neptune-like 2–<6, gas giant ≥6 Earth radii. Unknown radii remain unclassified.
164 worlds↻ Random world
| World / host star | Type | Distance | Year length | Discovery |
|---|---|---|---|---|
| K2-223 b ↗K2-223 | Rocky-size | 647.8 ly | 0.506 days | 2018Transit |
| K2-229 b ↗K2-229 | Rocky-size | 334.5 ly | 0.584 days | 2018Transit |
| K2-266 b ↗K2-266 | Neptune-like | 253 ly | 0.659 days | 2018Transit |
| K2-396 b ↗K2-396 | Super-Earth | 896.5 ly | 0.674 days | 2022Transit |
| K2-413 b ↗K2-413 | Rocky-size | 930.1 ly | 0.809 days | 2022Transit |
| K2-85 b ↗K2-85 | Super-Earth | 317.1 ly | 0.685 days | 2016Transit |
| KELT-16 b ↗KELT-16 | Gas giant | 1,450 ly | 0.969 days | 2017Transit |
| KIC 10001893 b ↗KIC 10001893 | Unclassified | 5,456.4 ly | 0.22 days | 2014Orbital Brightness Modulation |
| KIC 10001893 c ↗KIC 10001893 | Unclassified | 5,456.4 ly | 0.325 days | 2014Orbital Brightness Modulation |
| KIC 10001893 d ↗KIC 10001893 | Unclassified | 5,456.4 ly | 0.812 days | 2014Orbital Brightness Modulation |
| KOI-1843.03 ↗Kepler-974 | Rocky-size | 438.1 ly | 0.177 days | 2013Transit |
| KOI-4777.01 ↗KOI-4777 | Rocky-size | 561.8 ly | 0.412 days | 2022Transit |
| KOI-4978 b ↗KOI-4978 | Rocky-size | 3,053.9 ly | 0.942 days | 2024Transit |
| KOI-55 b ↗KOI-55 | Rocky-size | 4,015 ly | 0.24 days | 2011Orbital Brightness Modulation |
| KOI-55 c ↗KOI-55 | Rocky-size | 4,015 ly | 0.343 days | 2011Orbital Brightness Modulation |
| Kepler-10 b ↗Kepler-10 | Super-Earth | 605 ly | 0.837 days | 2011Transit |
| Kepler-1039 b ↗Kepler-1039 | Super-Earth | 1,001 ly | 0.935 days | 2016Transit |
| Kepler-1067 b ↗Kepler-1067 | Rocky-size | 2,177.7 ly | 0.762 days | 2016Transit |
| Kepler-1087 b ↗Kepler-1087 | Rocky-size | 1,182.7 ly | 0.694 days | 2016Transit |
| Kepler-1107 b ↗Kepler-1107 | Super-Earth | 1,398.6 ly | 0.571 days | 2016Transit |
| Kepler-1139 b ↗Kepler-1139 | Rocky-size | 1,615 ly | 0.813 days | 2016Transit |
| Kepler-1173 b ↗Kepler-1173 | Rocky-size | 1,229.8 ly | 0.77 days | 2016Transit |
| Kepler-1203 b ↗Kepler-1203 | Rocky-size | 1,034 ly | 0.588 days | 2016Transit |
| Kepler-1228 b ↗Kepler-1228 | Super-Earth | 1,681.2 ly | 0.577 days | 2016Transit |
| Kepler-1258 b ↗Kepler-1258 | Rocky-size | 2,340.3 ly | 0.985 days | 2016Transit |
| Kepler-1259 b ↗Kepler-1259 | Super-Earth | 2,627.4 ly | 0.663 days | 2016Transit |
| Kepler-1264 b ↗Kepler-1264 | Rocky-size | 2,615.7 ly | 0.969 days | 2016Transit |
| Kepler-1284 b ↗Kepler-1284 | Rocky-size | 2,877.8 ly | 0.664 days | 2016Transit |
| Kepler-1310 b ↗Kepler-1310 | Super-Earth | 1,856.4 ly | 0.679 days | 2016Transit |
| Kepler-1315 b ↗Kepler-1315 | Super-Earth | 1,568.4 ly | 0.843 days | 2016Transit |