Definition of Photosphere, Optical Depth and Effective Temperature
The stellar photosphere, the “surface of a star,” is defined as the layer of its atmosphere at an optical depth […]
Migrating Planets
Among the pioneers of the idea of swirling vortices of gas being responsible for the formation of the solar system […]
Liquid Water on Mars
Geomorphological, mineralogical and other evidence of the conditions favoring the existence of water on Mars in liquid phase is reviewed. […]
NGC 7635
The Bubble Nebula is an ionized hydrogen emission nebula 7,800 light years away, created by stellar winds from the Wolf-Rayet […]
Takahashi Mewlon 210 and ASI 1600 MM-C CMOS First Light Tests
Some preliminary tests of the new Takahashi Mewlon 210 Dall–Kirkham based astrograph, with ASI 1600 MM-C CMOS camera.
ASE: Amateur Search for Exoplanets via Radial Velocity Analysis
ASE is a MatLab application that incorporates MERCURY6 FORTRAN code for automatic search of exoplanet orbital fits to radial velocity data […]
Galactic Plane Transit at 22.09 MHz
Original content: http://www.bcsatellite.net/bao/VSR/gplane.html