江涛 发表于 2007-12-30 18:32

精致的8P彗星图

On Dec. 29th in the mountains of northern Italy, Giampaolo Salvato took a picture of Comet 8P/Tuttle, see below, using no telescope at all. "This is a 5 minute exposure with my Canon 5D digital camera set at ISO 400," he says.

from spaceweather





http://www.spaceweather.com/swpod2007/29dec07/Giampaolo-Salvato1.jpg

NEW YEARS COMET: After a 13.6 year absence, Comet 8P/Tuttle is once again traveling through the inner solar system and on Jan. 1st and 2nd it makes its closest approach to Earth--only 24 million miles away. The emerald-colored comet will brighten to a predicted magnitude of 5.8, visible to the unaided eye from dark-sky sites and a fine target for backyard telescopes: sky map.
On Dec. 29th in the mountains of northern Italy, Giampaolo Salvato took a picture of Comet 8P/Tuttle, see below, using no telescope at all. "This is a 5 minute exposure with my Canon 5D digital camera set at ISO 400," he says.


Click on the image for an even wider view, which encompasses exploding Comet 17P/Holmes, variable star Algol, the Andromeda Galaxy (M31) and some lovely star clusters. Comet Tuttle is racing across this starry expanse for a Dec. 30th encounter with spiral galaxy M33--a can't-miss event for astrophotographers. Stay tuned for photos!


内容很丰富的一张图，呵呵
注：Almach ——仙女座γ星 天大将军一

来源：http://www.spaceweather.com/swpod2007/29dec07/Giampaolo-Salvato1.jpg

[ 本帖最后由 Eldghost 于 2007-12-30 18:53 编辑 ]

Eldghost 发表于 2007-12-30 18:56

呵呵，刚才我发重了。
内容补过来，俺的重复帖，删除！
好帖子，精华！

开始 发表于 2007-12-30 19:15

8P-TUTTLE是不是《天文爱好者》说的那颗彗星呀::luguo::

Eldghost 发表于 2007-12-30 19:17

再上一张8P图！

http://www.spaceweather.com/comets/tuttle/26dec07/Mike-Holloway1.jpg




位置示意图：
http://spaceweather.com/images2007/29dec07/skymap_north_tuttle.gif

来源：http://spaceweather.com

[ 本帖最后由 Eldghost 于 2007-12-30 19:20 编辑 ]

Eldghost 发表于 2007-12-30 19:22

原帖由 开始 于 2007-12-30 19:15 发表 http://www.astronomy.com.cn/bbs/images/common/back.gif
8P-TUTTLE是不是《天文爱好者》说的那颗彗星呀::luguo::



最近比较火的有两颗：一颗是帖子里的8P，另一颗是前段时间爆发N万倍的17P
没看到《天文爱好者》，不大清楚，但估计杂志里说的很可能是后者

图版和摄影版里17p的图都不少，可以试着搜索一下

江涛 发表于 2007-12-30 19:54

呵呵，最近8P的确很火。。。。。

北斗渡鸦 发表于 2007-12-30 20:17

好东西啊~~不错的图~~~~::0022::

blve 发表于 2007-12-30 20:47

小了点，双筒看着估计费劲了

星夜流年 发表于 2007-12-31 18:15

昨晚貌似看见8P和M33了::070821_19.jpg::

活动星图 发表于 2007-12-31 18:17

8P和17P很近啊

zheng123 发表于 2007-12-31 18:40

江涛 发表于 2007-12-31 19:33

原帖由 zheng123 于 2007-12-31 18:40 发表 http://www.astronomy.com.cn/bbs/images/common/back.gif
好图啊!E文能翻下不?::42:: ::42:: ::42::
那我就小翻译一段
新年的彗星：经过13.6年的离别，8P彗星在1.1和1.2这段时间内再次穿越太阳系，此时8P最靠近地球——只有24000000英里。绿宝石般的彗星将在这时达到奇迹般的亮度，5.8等。在黑夜肉眼可见，并且是个用望远镜非常好找的目标。
12.9，在意大利北部的山上，Giampaolo Salvato 拍下了8P，完全没有使用望远镜，“仅仅是用CANON 5D数码相机以ISO400拍下的”他说到。

Garnett 发表于 2007-12-31 20:15

好PP！！！内容好多！2颗彗星、2个星系、还有一个NGC。

寻找拉玛 发表于 2008-1-1 10:30

::42:: ::42:: 最近比较火的两颗彗星合影
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