Hot-Neptune Initiative (HONEI) Archives

Target pixel file from the TESS observation of Sector 54 and Sector 55, centered respectively on TOI-5800 (top panel) and TOI-5817 (bottom panel). The SPOC pipeline aperture is shown by shaded red squares. Both fields appear to be uncontaminated by stars within 6 Gaia magnitudes, according to the Gaia DR3 catalog (Gaia Collaboration et al. 2023). -- astro-ph.EP

Astrochemistry, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report

Two Hot sub-Neptunes On A Close-in, eccentric orbit (TOI-5800 b) and a farther-out, circular orbit (TOI-5817 b)

by Keith CowingMay 19, 2025May 19, 2025

Neptune-sized exoplanets are key targets for atmospheric studies, yet their formation and evolution remain poorly understood due to their diverse characteristics and limited sample size.

Hot-Neptune Initiative (HONEI)

Two Hot sub-Neptunes On A Close-in, eccentric orbit (TOI-5800 b) and a farther-out, circular orbit (TOI-5817 b)

Tricorder Tech: New Handheld Device Maps Chemical Composition Using Infrared Light

No Statistically Significant Evidence For A Correlation Between Stellar And planetary Composition

Water Planet Recon: How Accurately Can We Measure Earth Ocean’s Deepest Point?

Webb Reveals A Stunning Panorama Of Star Formation

Deep Learning of SHERLOC Raman Spectra For Facilitating Mars Astromaterial Identification