VISUAL ARCHIVE / IMAGE STORY
Absorption Changes a Stellar Spectrum
A conceptual visualization of how dense stellar atmospheres can alter perceived color. Broad sodium and calcium absorption remove portions of the visible light escaping WD J1330+6435, leaving a spectrum whose combined wavelengths produce a pale green appearance. The graphic is explanatory rather than a reproduction of measured spectral data.
A conceptual visualization of how dense stellar atmospheres can alter perceived color. Broad sodium and calcium absorption remove portions of the visible light escaping WD J1330+6435, leaving a spectrum whose combined wavelengths produce a pale green appearance. The graphic is explanatory rather than a reproduction of measured spectral data.
THE OBSERVATION
What we can actually see.
White-dwarf spectra reveal absorption shaped by temperature, atmospheric density and chemical composition. Researchers combine those spectra with models of human color response to predict how a resolved stellar disk would appear.
THE ILLUSTRATION
What the artwork imagines.
A conceptual visualization of how dense stellar atmospheres can alter perceived color. Broad sodium and calcium absorption remove portions of the visible light escaping WD J1330+6435, leaving a spectrum whose combined wavelengths produce a pale green appearance. The graphic is explanatory rather than a reproduction of measured spectral data. The selected artwork is a conceptual reconstruction. Viewpoint, lighting and apparent detail are illustrative, not additional measurements or a confirmed photograph of the depicted event.
FROM THE ILLUSTRATED ARTICLE
The story that inspired it.
Dense stellar atmospheres can remove broad regions of a spectrum and alter perceived color. The green-white-dwarf result comes from spectra and color modeling, rather than a close-up photograph.
Read The First Known Green Star Is Already DeadCHECK THE RECORD
The image interprets the research below. Follow the original work for the measurements and limits behind the scene.
Read the published study → Read the preprint → Read the research announcement → Explore NASA’s guide → Read the NASA article →OTHER IMAGE STORIES
A White Dwarf’s Modeled Green Appearance
The Range of White-Dwarf Colors
The Mark Shared by Titan and Pluto