While there is a relatively low number of professional astronomers, the field is popular among amateurs.
wˌaɪl ðɛɹ ɪz ɐ ɹˈɛlətˌɪvli lˈoʊ nˈʌmbɚɹ ʌv pɹəfˈɛʃənəl ɐstɹˈɑːnəmɚz, ðə fˈiːld ɪz pˈɑːpjʊlɚɹ ɐmˌʌŋ ˈæmətʃɚz.