Stellar catalog: Discover the nearby universe

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Stellar catalog: Discover the nearby universe

Database of nearby stars and planets in Milky Way. Current news from astronomy and stellar research.

01/08/2026

The subgiant star ⭐️TOI-5882 contains high levels of lithium, potentially caused by the engulfment of a smaller planet
📄 https://www.stellarcatalog.com/news/planet-engulfment-remains-a-possible-cause-for-lit

07/07/2026

Radial velocity reveals for the first time planetary mass object around a brown dwarf. It was found in the system ⭐️ CD-35 2722 consisting of a low-mass star and even lighter brown dwarf
📄 https://www.stellarcatalog.com/news/radial-velocity-analysis-reveals-planetary-mass-mo

06/07/2026

🪐TOI-2195 A b is an inflated hot Neptune found orbiting an orange dwarf. Its extreme orbit and physical size suggest it was once a much larger gas giant that lost nearly 90 percent of its mass through gravitational interactions and intense tidal forces
📄 https://www.stellarcatalog.com/news/inflated-hot-neptune-toi-2195-a-b-likely-formed

02/07/2026

Reflected light from the ultra-hot Neptune 🪐LTT 9779 b has been measured using high-resolution spectroscopy. The planet shows a high geometric albedo of 0.88, suggesting a highly reflective atmosphere likely dominated by clouds or scattering processes
📄 https://www.stellarcatalog.com/news/high-resolution-observations-reveal-reflected-lig

28/06/2026

New observations of the young star ⭐️PDS 70 reveal two elongated dust clumps and a potential third 🪐planet candidate
📄 https://www.stellarcatalog.com/news/observations-of-pds-70-reveal-new-dust-clumps

25/06/2026

A flyby of the star ⭐️HD 7977 may have triggered a comet shower in our solar system 2.5 million years ago. Simulations suggest this encounter explains current comet patterns and indicates the Oort cloud population may be smaller than previously thought
📄 https://www.stellarcatalog.com/news/stellar-passage-of-hd-7977-likely-triggered-a-com

24/06/2026

James Webb finds ammonia in the atmosphere of giant planet 🪐TOI-6894 b. Observations also show methane, carbon disulfide and signs of water. The chemical makeup is surprisingly similar to the gas giants in our solar system
📄 https://www.stellarcatalog.com/news/atmosphere-of-giant-planet-toi-6894b-reveals-ammon

23/06/2026

Sub-Neptunes 🪐TOI-421 b and 🪐Gliese 3470 b show evidence of forming in water-poor regions. Modeling indicates that initial building blocks—rock, water, and soot—are the primary drivers of atmospheric diversity in these distant worlds
📄 https://www.stellarcatalog.com/news/formation-history-of-sub-neptunes-toi-421b-and-gli

04/06/2026

⭐️HD 81809 B shows a strange chemical composition compared to its primary star. A new study suggests this could be due to the star engulfing 25–75 Earth masses of planetary material
https://www.stellarcatalog.com/news/planetary-engulfment-may-explain-chemical-paradox-binary-system-

04/06/2026

JWST has detected water v***r in the atmosphere of super-Earth progenitor 🪐V1298 Tauri c. The study reveals that the planet's atmospheric metallicity is lower than that of mature planets, suggesting this relationship evolves with planetary age
📄 https://www.stellarcatalog.com/news/jwst-observations-reveal-water-v***r-in-the-atmosphere

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