HAT-P-35 b
HAT-P-35 b is a hot Jupiter orbiting HAT-P-35 in the constellation Hydra. It lies about 1,654 light-years from Earth and was discovered in 2011 using the transit method.
How Big Is HAT-P-35 b?
HAT-P-35 b has a radius of 14.93 times that of Earth, or 1.33 times the radius of Jupiter. Its mass is 336 times that of Earth, giving it a density of 0.55 g/cm³ — closer to gas planets like Jupiter (1.33 g/cm³).
Is HAT-P-35 b in the Habitable Zone?
HAT-P-35 b orbits inside the inner edge of the habitable zone of HAT-P-35. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of HAT-P-35: 1.176–2.749 AU (conservative: 1.489–2.606 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
Orbit and Year Length
A year on HAT-P-35 b — one full orbit around HAT-P-35 — lasts 3.65 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.050 AU — closer to its star than Mercury is to the Sun. Its orbit is nearly circular (eccentricity 0.020).
How Was HAT-P-35 b Discovered?
HAT-P-35 b was discovered in 2011 using the transit method, with observations from HATNet.
The transit method watches a star for the tiny, regular dip in brightness that occurs when a planet crosses in front of it. The depth and timing of these dips reveal the planet's size and orbital period.
How Far Away Is HAT-P-35 b?
HAT-P-35 b is 1,653.5 light-years (507.0 parsecs) from Earth. Light arriving here tonight left the planet about 1,654 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 29,101,600 years to make the journey.
Earth Similarity Index
The Earth Similarity Index (ESI) scores how physically similar a planet is to Earth, from 0 to 1, based on radius, density, escape velocity and surface temperature. HAT-P-35 b scores 0.06, ranking #5,123 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: HAT-P-35
HAT-P-35 b belongs to a system of 3 stars; it orbits HAT-P-35.
HAT-P-35
- Surface temperature
- 6,096 K (Sun: 5,772 K)
- Mass
- 1.24 M☉
- Radius
- 1.44 R☉
- Age
- 3.5 billion years (Sun: 4.6)
Planetary System
HAT-P-35 b is the only planet known to orbit HAT-P-35 so far.
HAT-P-35 b — Complete Data
| Radius | 14.930 Earth radii (1.332 Jupiter radii) |
|---|---|
| Mass | 335.63 Earth masses (1.056 Jupiter masses) |
| Density | 0.55 g/cm³ (Earth: 5.51) |
| Orbital period | 3.65 days |
| Orbital distance | 0.050 AU |
| Eccentricity | 0.020 |
| Earth Similarity Index | 0.06 |
| Distance from Earth | 1,653.5 light-years (507.0 parsecs) |
| Constellation | Hydra |
| Discovery method | Transit |
| Discovery facility | HATNet |
| Discovery year | 2011 |
Data: NASA Exoplanet Archive, last updated 2020-03-13. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About HAT-P-35 b
Is HAT-P-35 b habitable?
No — HAT-P-35 b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is HAT-P-35 b?
HAT-P-35 b is about 1,654 light-years from Earth in the constellation Hydra. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 29,101,600 years to get there.
How big is HAT-P-35 b compared to Earth?
HAT-P-35 b has 14.93 times the radius of Earth and about 336 times its mass.
How long is a year on HAT-P-35 b?
One orbit around HAT-P-35 takes 3.6 Earth days — short enough that 100 of its years would fit into one Earth year.
Explore HAT-P-35 b in the app
Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.
