Infrared VLTI measurements of Mira at phases 0.13, 0.18, 0.26, 0.40 and 0.47, show that the radius varies from at phase 0.13 just after maximum to at phase 0.40 approaching minimum. The temperature at phase 0.13 is and at phase 0.26 about halfway from maximum to minimum. The luminosity is calculated to be at phase 0.13 and at phase 0.26.
infrared vlti measurements of mira at phases 013 018 026 040 and 047 show that the radius varies from at phase 013 just after maximum to at phase 040 approaching minimum the temperature at phase 013 is and at phase 026 about halfway from maximum to minimum the luminosity is calculated to be at phase 013 and at phase 026