Open Astronomy

Solar observations at the Coimbra Astronomical Observatory

Perturbed locations and linear stability of collinear Lagrangian points in the elliptic restricted three body problem with triaxial primaries

Sliced Inverse Regression: application to fundamental stellar parameters

The potentially hazardous NEA 2001 BB16

Mineralized biosignatures in ALH-77005 Shergottite - Clues to Martian Life?

Photoluminescence and Cathodoluminescence of the Solid Cometary Substance

Equilibria and orbits in the dynamical environment of asteroid 22 Kalliope

Analysis of Orbit Accuracy for Non-cooperative Earth-Orbiting Objects

Quantum Mechanical Explanation for Dark Energy, Cosmic Coincidence, Flatness, Age, and Size of the Universe

Characterization and first results of the planetary borehole-wall imager — methods to develop for in-situ exploration

A small survey of UV-bright stars around the northern ecliptic pole: seeking new p-mode sdB variables for the TESS mission

Active Galactic Nuclei in polarized light

Conditions for the formation of anomalous tail of comet

Microbial mediation of textures and minerals – terrestrial or parent body processes?

Time-Optimal Spacecraft Reorientation for the Observation of Multiple Asteroids

Morphological Distribution of Galaxies in Some Nearby Clusters

Design of Artificial Sun-Synchronous Orbits with Main Zonal Harmonics and Solar Radiation Pressure Using Continuous Low-Thrust Control Strategies

Multi-criteria GIS analysis of the topography of the Moon and better solutions for potential landing