Their name come from their discoverer, since they were described for the first time in 1846 by Gustav Kirchhoff.
ຊື່ຂອງພວກເຂົາແມ່ນມາຈາກຜູ້ຄົ້ນພົບຂອງພວກເຂົາ, ເພາະວ່າພວກເຂົາຖືກອະທິບາຍເປັນເທື່ອ ທໍາ ອິດໃນປີ 1846 ໂດຍ Gustav Kirchhoff.