4 ms·
The ELT will be complete five years before the TMT, and has a forty meter aperture.
by madaxe_again 7y ago
The ELT will be complete five years before the TMT, and has a forty meter aperture.
- wumms 7y agoFirst light: ELT 2025 (39.3m, 978m²) TMT 2027 (30m, 655m²) (Future first-light dates are provisional and likely to change. https://en.wikipedia.org/wiki/Extremely_Large_Telescope https://en.wikipedia.org/wiki/Extremely_Large_Telescope) Nice mirror size comparison: https://en.wikipedia.org/wiki/Extremely_Large_Telescope#/media/File:Comparison_optical_telescope_primary_mirrors.svg https://en.wikipedia.org/wiki/Extremely_Large_Telescope#/med...
- _ph_ 7y agoAs a telescope, the ELT will be superior, but it is in the other hemisphere. So the TMT does not only give more observation "bandwidth", but also unlocks a high quality view into the northern hemisphere. Together, those two telescopes can cover the whole sky.