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Kepler-1078 b

Super Earth Cygnus

Kepler-1078 b is a super-Earth orbiting Kepler-1078 in the constellation Cygnus. It lies about 8,094 light-years from Earth and was discovered in 2016 using the transit method.

1.90×Earth radius
3.0 dOrbital period
0.26Earth similarity
8,094 lyDistance
2016Discovered

How Big Is Kepler-1078 b?

Earth1.00 R⊕Kepler-1078 b1.90 R⊕
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Kepler-1078 b has a radius of 1.90 times that of Earth.

Is Kepler-1078 b in the Habitable Zone?

The position of Kepler-1078 b relative to the habitable zone of Kepler-1078 cannot be precisely determined from the available orbital data.

Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of Kepler-1078: 0.658–1.557 AU (conservative: 0.833–1.476 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 Kepler-1078 b — one full orbit around Kepler-1078 — lasts 3.01 Earth days, shorter than Mercury's 88-day year.

How Was Kepler-1078 b Discovered?

Kepler-1078 b was discovered in 2016 using the transit method, with observations from Kepler.

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 Kepler-1078 b?

Kepler-1078 b is 8,094.2 light-years (2,481.7 parsecs) from Earth. Light arriving here tonight left the planet about 8,094 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 142,457,920 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. Kepler-1078 b scores 0.26, ranking #2,861 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.

The Host Star: Kepler-1078

Kepler-1078

Surface temperature
5,612 K (Sun: 5,772 K)
Mass
0.94 M☉
Radius
0.92 R☉
Age
4.4 billion years (Sun: 4.6)

Planetary System

Kepler-1078 b is the only planet known to orbit Kepler-1078 so far.

Kepler-1078 b — Complete Data

Radius1.900 Earth radii (0.170 Jupiter radii)
Orbital period3.01 days
Earth Similarity Index0.26
Distance from Earth8,094.2 light-years (2,481.7 parsecs)
ConstellationCygnus
Discovery methodTransit
Discovery facilityKepler
Discovery year2016

Data: NASA Exoplanet Archive, last updated 2016-05-06. Earth Similarity Index: PHL @ UPR Arecibo.

Frequently Asked Questions About Kepler-1078 b

Is Kepler-1078 b habitable?

Kepler-1078 b is not known to orbit within the habitable zone of Kepler-1078, and as a super-Earth it is an unlikely candidate for life as we know it.

How far away is Kepler-1078 b?

Kepler-1078 b is about 8,094 light-years from Earth in the constellation Cygnus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 142,457,920 years to get there.

How big is Kepler-1078 b compared to Earth?

Kepler-1078 b has 1.90 times the radius of Earth.

How long is a year on Kepler-1078 b?

One orbit around Kepler-1078 takes 3.0 Earth days — short enough that 121 of its years would fit into one Earth year.

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