Grigory Abramovich Shajn (Russian: Григорий Абрамович Шайн) (April 19, 1892 – August 4, 1956) was a Soviet/Russian astronomer.
In modern English transliteration, his surname would be given as Shayn, but his astronomical discoveries are credited under the name G. Shajn.
[citation needed] He earned a masters degree from Tomsk University in 1920.
[1] He was the husband of Pelageya Shajn (Пелагея Фёдоровна Шайн) née Sannikova (Санникова), who was also a Russian astronomer.
He discovered new gaseous nebulas and the anomalous abundance of 13C in stellar atmospheres.