M89(NGC4552) in Virgo Clear 305~300"(Feb.24 Mar.27, 28 Apr.2, 10, 21, 22 /2019)@ IR640 163~300" (Apr.18, 19 /2021 Mar.12, 15 /2022) B 51~300" (Apr.2 /2019 Apr.22 /2022) 21cm f6.0 Newtonian ST8XME