NASA JPL
Orbital elements and ephemerides
Public domain
NASA
Planet and moon surface imagery
Public domain
Solar System Scope
Sun photosphere texture, from NASA/SDO imagery
CC BY 4.0
NASA / ESA · Hubble · ESO
Nebulae, galaxies and deep field photographs
CC BY 4.0
ESA / Planck Collaboration
Cosmic microwave background map
CC BY-SA 3.0 IGO
HYG v4.1
25,791 stars: Hipparcos, Yale BSC and Gliese
CC BY-SA 2.5
d3-celestial · Stellarium
The 89 constellation figures
BSD-3
Every figure in this site is measured or computed from these sources.
Values marked calc. are computed by us, never presented as measured.