Month: July 2025

PARALLAX
The apparent shift of an object’s position due to the observer’s movement.

SPECTRAL RESOLUTION
The ability to distinguish between close wavelengths in a spectrum.

INFRARED SPECTROSCOPY
Used to study cool objects and planetary atmospheres.

X-RAY SPECTROSCOPY
A method for studying extremely hot cosmic objects like black holes.

TELLURIC LINES
Spectral absorption features caused by Earth’s atmosphere.

FLUORESCENCE IN SPACE
The emission of light by atoms absorbing high-energy photons.

SPECTROPOLARIMETRY
The study of polarized light in spectra to understand magnetic fields in space.

LYMAN SERIES
Ultraviolet spectral lines of hydrogen.

BALMER SERIES
A set of hydrogen spectral lines visible in optical light.