KOMET-1

KOMET DONATI (WILLIAM DYCE, 1858)

Munculnya komet Donati diamati oleh Wallace dalam perjalanan menuju Kayoa dan Bacan pada tanggal 9 Oktober 1858 (The Malay Archipelago, Chapter XXIII),

"..and...discovered the magnificent comet which was at the same time, astonishing all Europe. The nucleus presented to the naked eye a distinct disc of brilliant white light, from which the tail rose at an angle of about 30° or 35° with the horizon, curving slightly downwards, and terminating in a broad brush of faint light, the curvature of which diminished till it was nearly straight at the end. The portion of the tail next the comet appeared three or four times as bright as the most luminous portion of the milky way, and what struck me as a singular feature was that its upper margin, from the nucleus to very near the extremity, was clearly and almost sharply defined, while the lower side gradually shaded off into obscurity. Directly it rose above the ridge of the hill, I said to my men, “See, it’s not a fire, it’s a bintang ber-ekor” (“tailed-star,” the Malay idiom for a comet). “So it is,” said they; and all declared that they had often heard tell of such, but had never seen one till now. I had no telescope with me, nor any instrument at hand, but I estimated the length of the tail at about 20°, and the width, towards the extremity, about 4° or 5°."