Hipparchus' Lost Star Catalogue: A Comparative Analysis of Recently Recovered Fragments
This article examines recently discovered fragments of what is believed to be Hipparchus' lost star catalogue, comparing them to his only surviving work, the Commentary on Aratus, to understand their significance and what they reveal about Hipparchus' astronomical methods.
코로나 루프 기슭 근처에서 무리지어 나타나는 역동적인 극자외선 밝은 올챙이 구조에 대한 고해상도 관측
태양 코로나 루프 기슭 근처에서 관측된 극자외선 밝은 올챙이 구조(CEBT) 무리는 주로 제1형 스피큘과 관련 있으며, 코로나 가열 현상에 대한 새로운 단서를 제공합니다.
低温褐色矮星グリーゼ229Bは近接連星系である
低温褐色矮星グリーゼ229Bは、これまで質量と光度の間に矛盾があるとされてきたが、近接連星系であることが判明し、この矛盾が解消された。
The Brown Dwarf Gliese 229 B Is Resolved into a Binary System
The brown dwarf Gliese 229 B, previously considered unusually massive and under-luminous, has been resolved into a binary system, Gliese 229 BaBb, using GRAVITY interferometry and CRIRES+ spectroscopy, reconciling its properties with theoretical models and providing insights into the formation of tight brown dwarf binaries.
orbitize! v3: A Comprehensive Orbit-fitting Software Package for the High-contrast Imaging Community
orbitize! is a powerful software package for Bayesian modeling of the orbital parameters of resolved binary objects from time series measurements, developed with the needs of the high-contrast imaging community in mind.
Hubble Space Telescope's Unique Contributions to Galaxy Science: Complementing the James Webb Space Telescope
The Hubble Space Telescope's unique UV-optical capabilities are essential for understanding the early stages of galaxy assembly and the cosmic star formation history, complementing the infrared capabilities of the James Webb Space Telescope.
Superfast Rotating Main-belt Asteroids Discovered in the DECam Ecliptic Exploration Project
Three superfast rotating main-belt asteroids were discovered in a preliminary search of the DECam Ecliptic Exploration Project (DEEP) data, implying a higher incidence rate of such objects than previously measured.
Discovery and Spectroscopic Confirmation of Aquarius III: A Low-Mass Milky Way Satellite Galaxy
Aquarius III is a newly discovered low-luminosity, metal-poor, and kinematically cold stellar system located in the outer halo of the Milky Way, likely on first infall.
Siril: A Powerful Open-Source Software for Advanced Astronomical Image Processing
Siril is a comprehensive, open-source software package that provides advanced tools for preprocessing and post-processing astronomical images, enabling users to produce high-quality images of celestial objects.
Spectroscopic Confirmation and Proper Motion Measurement of a T-Dwarf Brown Dwarf at 2 Kiloparsecs
A T5-T6 brown dwarf at a distance of 1.8-2.3 kpc from the Sun, with evidence of low metallicity ([M/H] ≤ -0.5) and a high transverse velocity of 172-214 km/s, suggesting it is likely a member of the Milky Way thick disk or halo.
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