What does this number measure?
An orange giant larger than Vega, located in Gemini. Its diameter is a representative estimate based on a radius of around nine solar radii. It varies with the adopted stellar parameters; the illustration's colour and surface details are interpreted.
Compare the stated dimensions
The comparison uses the number in each fact sheet: altitude, height, diameter, length or distance, depending on the reference. Two values in metres do not necessarily describe the same property.
Source and limitations
Proposed catalogue value, an order of magnitude not audited online in this session; an HTTPS source is provided for checking.
An interpretative illustration of Pollux, an orange giant; the illustrated tint, granulation and convection are neither a resolved photograph nor a measured map of the photosphere.