자유게시판
Comet Machholz Shines!
By Alan M. MacRobert
In photographs, Comet Machholz (C/2004 Q2) has been showing a blue gas tail and the edge of an orange-yellowish dust tail emerging at very different angles from the coma. Johannes Schedler in Austria took this picture on December 12, 2004, using a Canon EF 200mm f/2.8 lens on an SBIG STL-11000M CCD camera. Courtesy Johannes Schedler.
December 22, 2004 | If you haven't gone out yet to look for Comet Machholz west of Orion, you're missing the big sky event of this holiday season. The comet is a fine sight in binoculars, glowing at 4th magnitude pale greenish gray — a large fuzzcloud with a brighter core set against a background of pinpoint stars. This week it's about 13° west of Orion's Shield, high up in good view in the southeast after about 8 p.m. See our article and finder chart in the January Sky & Telescope, page 84, or online.
Unfortunately a bright Moon lights the sky until about Wednesday, December 29th. In a dark sky the comet has been easily visible to the naked eye; through moonlight or light pollution it's visible to the naked eye with greater difficulty if at all. Basically, if you can see the Andromeda Galaxy, you can definitely see Machholz.
글 수 17,347
Comet Machholz Shines!
By Alan M. MacRobert
In photographs, Comet Machholz (C/2004 Q2) has been showing a blue gas tail and the edge of an orange-yellowish dust tail emerging at very different angles from the coma. Johannes Schedler in Austria took this picture on December 12, 2004, using a Canon EF 200mm f/2.8 lens on an SBIG STL-11000M CCD camera. Courtesy Johannes Schedler.
December 22, 2004 | If you haven't gone out yet to look for Comet Machholz west of Orion, you're missing the big sky event of this holiday season. The comet is a fine sight in binoculars, glowing at 4th magnitude pale greenish gray — a large fuzzcloud with a brighter core set against a background of pinpoint stars. This week it's about 13° west of Orion's Shield, high up in good view in the southeast after about 8 p.m. See our article and finder chart in the January Sky & Telescope, page 84, or online.
Unfortunately a bright Moon lights the sky until about Wednesday, December 29th. In a dark sky the comet has been easily visible to the naked eye; through moonlight or light pollution it's visible to the naked eye with greater difficulty if at all. Basically, if you can see the Andromeda Galaxy, you can definitely see Machholz.
이번12월 29일 부터 오리온자리를 지나게 되면 육안으로도 볼 수 있는 혜성이랍니다.
안드로메다은하 정도의 밝기까지 밝아진다하니 야외에서 망원경으로 보면 정말 아름답겠군요 ^^*