The Birth of Stars and Planets
John Bally and Bo Reipurth, 2006, Cambridge University Press
I'm looking for astronomical objects that might resemble a cold Dyson shell, around 4e26 watts at 60K, 100 AU diameter, solid without gas emission lines. This book decribes many types of stars, planets, gas clouds - and the telescopes that image them.
- p 25 - 1980s, IRAS Infra-Red Astronomy Satellite ... description in "times the wavelength of visible light (feh). note: From wikipedia, 12, 25, 60 and 100 micrometres wavelengths, with resolutions ranging from 30 arcseconds at wavelength 12 micrometers to 2 arcminutes at wavelength 100 micrometers.
- p 46 - Gemini North Telescope, optimized for infrared up to 24 micrometers, at 4200 m on Mauna Kea. note: South Pole is dryer, perhaps better for IR, Mount Vinson is at 4897 meters altitude, 750 km from the south pole.