The first radio pulsar "CP 1919" (now known as PSR B1919+21), with a pulse period of 1.337 seconds and a pulse width of 0.04-second, was discovered in 1967.
Prvý rádiový pulzar, CP 1919 (dnes známy ako PSR B1919+21), s pulzovou periódou 1,337 sekundy a pulzom 0,04 sekundy, bol objavený v roku 1967.