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We present the results from a survey of interstellar absorptions towards the supernova remnant (SNR) RX J0852.0–4622. The distribution of K  i  absorbers along the distance of the background stars is indicative of a local region ( d  &lt; 600 pc) strongly depopulated by K  i  line‐absorbing clouds. This fact is supported by the behaviour of the interstellar extinction. We find four high‐velocity Ca  ii  components with velocities of &gt;100 km s −1  towards three stars and we identify these with shocked clouds of the Vela SNR. We reveal and measure the acceleration of two shocked clouds on the approaching and receding sides of the Vela SNR along the same line of sight. The acceleration, velocity and Ca  ii  column density of the clouds are used to probe their parameters. The total hydrogen column density of both accelerating clouds is found to be similar (∼6 × 10 17  cm −2 ), which indicates that there is possibly a significant number of small‐sized clouds in the vicinity of the Vela SNR.

Interstellar absorptions and shocked clouds towards the supernova remnant RX J0852.0–4622