LP 890 9 c Planet: Size, Mass, Gravity, Surface Temperature, Oxygen, Habitable, Atmosphere, Distance, Facts

LP 890 9 c Planet: Size, Mass, Gravity, Surface Temperature, Oxygen, Habitable, Atmosphere, Distance, Facts

LP 890 9c Planet

Unveiling the Super Earth: LP 890 9c's Cosmic Chronicles

In the realm of distant exoplanets, LP 890-9c emerges as a captivating celestial entity, offering a window into the complexities of our vast universe. This super Earth, orbiting an M-type star, beckons astronomers and researchers to decipher its mysteries and explore the profound implications it holds for our understanding of planetary systems.

LP 890-9c: A Stellar Profile

LP 890-9c, also known as SPECULOOS-2 or TOI-4306, is a super Earth with a mass equivalent to 25.3 Earths. Its orbit around an M-type star takes 8.5 days, and it resides at a distance of 0.03984 AU from its host star. The discovery of LP 890-9c was officially announced in 2022, marking a significant milestone in our exploration of distant planetary systems.

The Celestial Host: LP 890-9 Star

Situated 105 light-years away in the constellation of Eridanus, LP 890-9, also named SPECULOOS-2, is a high proper motion red dwarf star. With only 12% of the mass and 15% of the radius of the Sun, and a temperature of 2,871 K, it stands as an extremely faint stellar neighbor. LP 890-9's apparent magnitude of 18 makes it the faintest star known to host exoplanets discovered by the Transiting Exoplanet Survey Satellite (TESS) as of 2022.

LP 890 9 c planet

LP 890-9 Planetary System

LP 890-9's planetary system became a focal point of astronomical attention in 2022 with the discovery of two exoplanets, LP 890-9b and LP 890-9c. Both planets, likely terrestrial in nature and somewhat larger than Earth, present an exciting opportunity for further exploration. LP 890-9c, residing within the habitable zone, emerges as a prime candidate for atmospheric characterization using the James Webb Space Telescope (JWST).

LP 890-9c: A Window to Habitable Zone Dynamics

Orbiting near the inner edge of the habitable zone, LP 890-9c poses questions about its potential habitability and the factors influencing its climate. Scientists are actively exploring whether this super Earth, tidally locked and with a size 40% larger than Earth, exhibits Earth-like or Venus-like characteristics. Spectra from JWST are anticipated to provide crucial insights into LP 890-9c's atmospheric composition and habitability.

Insights from LP 890-9c's Inner Edge

Recent research led by Lisa Kaltenegger, associate professor of astronomy at Cornell University, sheds light on LP 890-9c's significance. The super Earth's proximity to the inner edge of its star's habitable zone offers valuable insights into planetary evolution under increasing starlight. Whether it retains warm oceans, a steam atmosphere, or has lost its water, LP 890-9c serves as a key to understanding the evolution of rocky planets in similar scenarios.

LP 890-9c and the Future of Exoplanetary Exploration

As one of the best targets for JWST, LP 890-9c holds promise for unraveling the mysteries of exoplanetary atmospheres and habitability. The sophisticated models developed by the research team pave the way for estimating atmospheric composition based on various planetary variables. LP 890-9c stands as a unique opportunity to explore the evolution of rocky planets in the habitable zone, providing valuable data for understanding our own planet's future.

LP 890 9 c Size Compared to Earth

LP 890-9c is classified as a Super Earth, and its radius is approximately 1.367 times that of Earth. This indicates that LP 890-9c is larger than our home planet.

LP 890 9 c Mass Compared to Earth

The mass of LP 890-9c is 25.3 times that of Earth. This significant mass suggests that LP 890-9c is a substantial exoplanet, falling into the category of Super Earths.

LP 890 9 c Surface Gravity Compared to Earth

Given the mass and size information, LP 890-9c likely has a higher surface gravity compared to Earth. However, the exact value of its surface gravity is not provided in the available data.

Surface Temperature of LP 890 9 c

LP 890-9c's surface temperature is a key factor in understanding its habitability. The available information doesn't specify the exact surface temperature, but it mentions that LP 890-9c orbits close to the inner edge of its solar system's habitable zone. The research led by Lisa Kaltenegger suggests that LP 890-9c could have different appearances depending on its atmospheric conditions, ranging from a "hot Earth" to a desolate Venus.

Does LP 890 9 c Have Oxygen

The presence of oxygen on LP 890-9c is not explicitly mentioned in the available data. Detecting specific gases on exoplanets often requires advanced observational tools, and as of now, there is no direct evidence confirming the presence or absence of oxygen on LP 890-9c.

Is LP 890 9 c Habitable

The habitability of LP 890-9c is a subject of ongoing research. While it orbits within the habitable zone, its large size and proximity to its star may present challenges. Models differ as to whether LP 890-9c is more likely to resemble Earth or Venus. The planet being tidally locked and the potential for powerful radiation near its star may impact its habitability. No definitive conclusions have been made regarding the habitability of LP 890-9c, and further observations, especially with the James Webb Space Telescope (JWST), are expected to provide more insights.

LP 890 9 c Atmosphere Composition

The specific composition of LP 890-9c's atmosphere is not detailed in the available data. The research led by Lisa Kaltenegger highlights the importance of studying the planet's atmosphere, especially with the JWST, to understand its evolution and potential habitability.

LP 890 9 c Distance from Earth

LP 890-9c is located in the LP 890-9 star system, which is about 100 light-years away from Earth. Determining the exact distance to distant celestial bodies involves sophisticated measurement techniques, and this value is based on the latest available measurements.

LP 890 9 c exoplanet

10 Interesting Fun Facts About LP 890 9 c

  1. LP 890-9c is a Super Earth, providing valuable insights into conditions at the inner edge of a star's habitable zone.
  2. Its mass is approximately 25.3 times that of Earth, making it a substantial exoplanet.
  3. LP 890-9c completes one orbit around its star in 8.5 days, indicating its relatively short orbital period.
  4. The LP 890-9 star system, also known as SPECULOOS-2 or TOI-4306, features LP 890-9c and LP 890-9b as its discovered exoplanets.
  5. LP 890-9c's location near the inner edge of the habitable zone sparks interest in its potential atmospheric conditions and habitability.
  6. The research led by Lisa Kaltenegger suggests that LP 890-9c could have different appearances, from a "hot Earth" to a desolate Venus, depending on its atmospheric conditions.
  7. LP 890-9c is tidally locked, meaning one side permanently faces its star, which can influence its climate and habitability.
  8. The James Webb Space Telescope (JWST) is considered one of the best tools to study LP 890-9c, especially regarding its potential habitability.
  9. LP 890-9c is one of the known, potentially habitable terrestrial planets, alongside the TRAPPIST-1 system.
  10. Scientists see LP 890-9c as a rare opportunity to explore the evolution of rocky planets at the inner edge of habitable zones and gain insights into the development of habitability under varying starlight conditions


LP 890-9c, the super Earth orbiting LP 890-9, captivates the imagination of astronomers and space enthusiasts alike. As technology advances and our observational capabilities grow, this distant celestial body offers a glimpse into the diversity of exoplanetary landscapes. LP 890-9c beckons us to explore the boundaries of habitability, serving as a celestial guide in our quest to understand the intricacies of planetary systems beyond our solar neighborhood.

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