20070110
http://xoomer.alice.it/danilo_pivato/solar_system/comets/c2006_p1_mcnaught/2007.01.10_16.45.htm好壮观啊!
十年间最亮的彗星现在意外地出现在天空中。最乐观的预测是麦克诺特彗星（C/2006P1）不久将成为过去百年内最亮的彗星之一。今后数天，在傍晚和早晨接近地平线的天空中在太阳附近，人们能用肉眼看到该彗星短小的彗尾和明亮的彗发。在找一张
好像是UFO，又象一个飞起来的火箭……he:25: :17: :27: :32: :30: :44: :21: http://www.kometarium.com/images/2006p1_1001_135mm_1.jpg
[ 本帖最后由 suhuasky 于 2007-1-11 23:13 编辑 ] http://uk.geocities.com/martin.mobberley@btinternet.com/2006P1_20070110_mpm.jpg 原帖由 浣熊先生 于 2007-1-11 22:22 发表
请问哪位同好能够解释一下为什么McNaught要被翻译成“马克罗特”而不是“马克诺特”或者其它读音更相近的名称呢？
我一般叫它麦克诺特
呵呵 原帖由 jolin521 于 2007-1-11 23:07 发表
好像是UFO，又象一个飞起来的火箭……he
:25: :17: :27: :32: :30: :44: :21:
此照片很可能是其下方灯光在镜头上形成的“鬼影”，彗星不在那个位置。
SECCHI上壮观的2006P1
彗星2006P1在NASA STEREO-B (Behind) 上显示出一条7度彗尾，而且有许多射线状的东西。This image (click for larger version) from the SECCHI/HI-1B instrument on the NASA STEREO-B (Behind) spacecraft was taken on January 11, 2007 just after the door covering the instrument was opened for the first time after the STEREO launch on October 26, 2006. The image is dominated by a spectacular view of comet C/2006 P1 (McNaught) The full field of view of the HI instrument is centered at about 14 degrees from sun center and is 20 degrees wide. (Note that the image opposite is a close-up view of the comet.) The comet tail is approximately 7 degrees in length and shows multiple rays. The coma is saturating the image even at the shortest exposure time of 1 sec. The images are full resolution 2048 x 2048, which corresponds to 35.1 arc sec/pixel. The SECCHI/HI instrument was built by a consortium consisting of NRL, the University of Birmingham (UK), Rutherford Appleton Laboratory (UK) and Centre Spatiale de Liege (Belgium).
This was the sight that greeted us when we opened the HI-1B doors for the first time today. Wow!! Just as a note to you all, the reason we can see this object in HI-1B is because the 'B' spacecraft is currently rolled (for operational reasons) at a roughly 140-degree angle. Ordinarily we would not have been able to spot the comet.
This is a full-field (but not full-size -- I rescaled it) image from the SECCHI HI-1 B camera showing comet C/2006 P1 (McNaught). Note the saturation in the HI images shows itself as vertical streaks instead of the horizontal streaks we see in LASCO. This is due to the way the HI CCDs are read by the instrument.
As many of you are aware, the recent discussions of this comet have centered around the question "how bright?". Well right now we have not had chance to analyze the images and determine a magnitude (we're still somewhat in shock), but as a benchmark, it appears to be brighter than Venus is in our HI-1 A images.
This is another close-up image of the comet. I have rescaled the image to show more fine structure in the tail, but it has dramatically increased the apparent saturation in the comet head. Note also that this was a longer exposure image (twenty-four seconds) so the saturation is pretty bad anyway. The glare in te lower-right corner is from the Sun's F-corona.
[ 本帖最后由 suhuasky 于 2007-1-12 08:44 编辑 ] 从上面的照片看来彗星很亮很亮啊，彗头部分严重光溢出，而且能看到离子尾~~~！！！
超级大彗星进入C3
亮度超过金星初略估计－4到－5等。
0518
彗头进来了非常亮 不知道有没有人在飞机上拍摄，我估计那是非常壮观的。
0617
继续贴图严重曝光过度 2006P1白昼观测：
C/2006P1 Observation Message List
Reply | Forward Message #2204 of 2204 < Prev | Next >
Greetings All
C/2006P1 McNaught
2007 Jan. 12.19 UT: m1=-4.0:, Dia.=1', DC=8...20x80B...Andrew Pearce
(Nedlands, Western Australia)[Truly spectacular! Observation was
made at 13:40 hrs local time with the Sun hidden behind my roof to
reduce glare. Comet was quickly picked up even though the binoculars
were not focused to the sky background prior on the night before
which is typically what is required to observe daylight objects.
Magnitude estimate is uncertain, as I was unable to locate Venus,
however based on previous experience of observing Venus close to the
Sun, it must be brighter than Venus although I have been conservative
in my estimate. Strong parabolic shape with a clear 'darker' spine
between the two tail sections which were roughly in PA 15 deg and 40
deg. Tail could be traced for approximately 0.8 deg without too much
difficulty. The more southerly spine (ie PA 40 deg) appeared
distinctly brighter and slightly longer.]
Regards
Andrew Pearce
Western Australia
1月11日的2006P1
C/2006 P1 (McNaught) - more images Message ListReply | Forward Message #2783 of 2786 < Prev | Next >
Hello!
This evening I could photograph the comet behind thin clouds:
http://www.kometarium.com/images/2006p1_1101_250mm_1.jpg
http://www.kometarium.com/images/2006p1_1101_250mm_2.jpg
http://www.kometarium.com/images/2006p1_1101_250mm_3.jpg
Canon DSLR + 250mm Telelens
Regards
Burkhard Leitner