![Known exoplanets from the NASA Exoplanet Archive in terms of their mass and orbital period. Triangle and circle point markers represent minimum and true masses, respectively. The larger green markers correspond to HD 190360’s three planets. All single-planet systems are made transparent, while all multi-planet systems are connected with a thin black line in order from shortest to longest period. Named period-bins are provided for reference according to rough temperature scales for planets orbiting main sequence FGK stars, and correspond to 0 < P [d] ≤ 1 (ultra-hot), 1 < P [d] ≤ 10 (hot), 10 < P [d] ≤ 100 (warm), 100 < P [d] ≤ 1000 (temperate), 1000 < P [d] ≤ 104 (cold), and 104 < P [d] ≤ 105 (ultra-cold). The gray histograms at the top and right correspond to the underlying distributions of orbital periods and masses. -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/08/The-NEID-Earth-Twin-SurveyIV.png?resize=1200%2C719&ssl=1)
We present the confirmation of HD 190360 d, a warm (P=88.690+0.051−0.049 d), low-mass (msini=10.23+0.81−0.80 M⊕) planet orbiting the nearby (d=16.0 pc), Sun-like (G7) star HD 190360.
NEID Earth Twin Survey
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
The NEID Earth Twin Survey. III. Survey Performance After Three Years on Sky
The NEID Earth Twin Survey (NETS) has been delivering a rich set of precise radial velocity (RV) measurements for 41 bright, nearby main sequence stars.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release
NEID Earth Twin Survey Delivers On Its Goal to Push the Limits of Exoplanet Discovery
For four years the NEID (rhymes with fluid) spectrograph, mounted on the WIYN 3.5-meter Telescope at U.S. National Science Foundation Kitt Peak National Observatory (KPNO), a Program of NSF NOIRLab, […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Status Report
The NEID Earth Twin Survey. I. Confirmation Of A 31-day Planet Orbiting HD 86728
With close to three years of observations in hand, the NEID Earth Twin Survey (NETS) is starting to unearth new astrophysical signals for a curated sample of bright, radial velocity […]