特大新闻，2006P1有可能成为耀眼的超亮彗星！！！！！

[quote:31d81c888f="suhuasky"]C/2006 P1 (McNaught) with DSLR (Widefield)   Message List    

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Hello!

This morning I got my first images (and observation) of C/2006 P1
(McNaught).

Here麓s a widefield-image with Canon DSLR and 100mm Telelens:
http://www.kometarium.com/images/2006p1_0501_100mm.jpg

It is already very bright (around 1.5mag)- could easily be seen in
8x30, should also be visible naked eye by now.

Burkhard Leitner



大意是Burkhard Leitner1月5日凌晨，拍摄了2006p1的照片，彗星非常明亮，在1.5等左右，使用8x30双筒镜很容易看到，估计也能被肉眼看到了。[/quote]这张好！如果再大些就收到第二好图系列了。

继续转SpaceWeather上面的照片

At sunrise this morning in Vallentuna, Sweden, P-M Heden was able to photograph the comet through a break in the clouds:


"I had a beautiful view," he says. "I saw the comet with my naked eyes just before the sun made the sky too bright."

"The tail was a beautiful sight in binoculars," adds Haakon Dahle of Fjellhamar, Norway, who took this picture, a 1 second exposure at 800 ASA. "I also saw the comet with the naked eye," he confirms

2006P1到0等啦

John Bortle's comments (below) are borne out as seen visually at 1702UT this
evening (Jan 6th):

C/2006P1 (McNaught)
2007 Jan. 6.71 m1=0.0, Dia=2.0', DC=8, Tail=25' in PA
035deg...11x80B...Richard Miles (Dorset, England)

The coma is a further magnitude brighter compared with 24 hours ago and may
very well already have attained a negative magnitude. The tail had more of
a hollow fan-like appearance bright along the two outer edges than previous.
The coma is now visible through even substantial cloud and when clear the
comet can just be seen with the naked eye at the start of civil twilight
(Sun at -6 deg altitude).

The comet has generally been 4 magnitudes brighter than the m1 ephemeris
prediction of the MPC for a few weeks now, whereas that difference may have
now increased to about 5.0 magnitudes.

Richard Miles
Golden Hill Observatory

Obs-V: C/2006 P1 (McNaught).



C/2006 P1 (McNaught):

2007 Jan 6.70 UT m1= 0, Dia.=3.5', DC=8, Dust tail: 24' in PA 356deg, 7x50B
+obj.135mm + ccd

Fran鏾is Kugel

Observatoire Chante-Perdrix
Haute-Provence France
mpc A77.

继续转SpaceWeather上面的照片

This weekend the comet is visible to the naked eye in the eastern sky just before sunrise. Veli Matti Pelttari of Rovaniemi, Finland, took this picture on Jan. 6th:

国内有观测到的吗？？

没好天气
真倒霉

Photo details: Canon 20D, 200mm lens, f/2.8, ISO100, ~1 second exposure.

"The comet is bright in the evening twilight, easily visible through binoculars. I estimate its visual magnitude to be -1," says Dyer. To find the comet, he advises, look to the right of Venus.

"I just got home from observing the comet--wow, what a beauty!" adds Doug Zubenel near Topeka, Kansas. "I could barely make it out naked eye 2o above the horizon. But with my 6-inch binocular telescope at 25-power, it looked just like the photos you've been running the last couple of days."

我这天气很好，今晚开始这几天跟踪观测！

C/2006 P1 - Daylight Image Jan 7.104   Message List    

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It is currently not possible to see C/2006P1 from my latitude (27.6 S)
with the sun below the horizon so I attempted to image the comet at
midday using a Canon 350D + 16cm reflector. At the time the comet was
70 degrees above the horizon, the sun 80 degrees above. To my suprise
I was successful and made this image:

http://www.pbase.com/image/72716955

At first I had to double check the orientation, since the tail appears
to be pointing the wrong way but it looks like this is a sunward
pointing fan. Using Venus as a comparision the magnitude of the
visible coma is 0.3, of course the daylight sky problably masks some of
the coma.

Terry




January 7.104, 2007

Daylight image made with 530mm FL f3.3 Takahashi Astrograph (6.1" reflector). 86 x 0.0008 second ISO100 images using a Canon 350D (standard camera an no filters were used) were stacked in IRIS to get this final image. Image required considerable gradient correction. Note hint of sunward fan. Indicated North is +/- 10 degrees accurate, Scale is indicated by circle (1' diameter). Comparision with Venus yields mag 0.3, although Venus was very slightly saturated (but then Venus was close to the zenith). Location of observation was from 153.6E -27.6S.

图图图图图图图

[理解错误，原帖删除]

现在能看到吗?

[quote:74e81ec647="小★★"]有人说同一天在早晨傍晚都可以看到.
为什么?????????[/quote]

只要彗星赤经和太阳差不多，赤纬比太阳高或低，你的观测点不在赤道上，就可以

成功观测到2006P1彗星！！ :mrgreen:  :mrgreen:  :mrgreen:
http://www.astronomy.com.cn/bbs/viewtopic.php?t=60886

能
现在与太阳角距在13度左右，早晚高纬度极好观测条件下可见。
如果白昼观测，其难度和白昼观测水星相似，在知道准确坐标情况下，使用大口径高倍率和自动寻星是能看到的，今天的亮度估计在－1到－2等左右。

图1：
C/2006 P1 - Daylight Image Jan 8.103   Message List    

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I was again able to image the comet's coma (and now also the start of
the tail) just after local noon today despite hazier conditions. 54 x
0.0008 sec exposures yielded this result:

http://www.pbase.com/terrylovejoy/image/72783444

Brightness is conservatively -0.5 from direct comparisions with Venus.

Sorry its not as impressive as the images from the north hemisphere,
but the conditions weren't exactly ideal!

Terry
January 8.103, 2007

Daylight image made with 530mm FL f3.3 Takahashi Astrograph (6.1" reflector). 52 x 0.0008 second ISO100 images using a Canon 350D (standard camera an no filters were used) were stacked in IRIS to get this final image. Although transparency was not as good as January 7, and there was some high cloud about the comet was markedly brighter. Indicated North is +/- 5 degrees accurate, Scale is indicated by circle (1' diameter). Comparision with Venus yields mag -0.5. Location of observation was from 153.6E -27.6S.


图2：
2006 P1 from Suffolk, UK. Jan 8th.   Message List    

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Dear Group,

I managed my first (and probably only) sight of 2006 P1 McNaught
from Suffolk, UK this morning. The weather has been dismal and
the forecast for the next few days is just as bad. I have posted
a picture at the top of my comet page.

http://uk.geocities.com/martinmobberley/Comets.html

The actual image lives here:

http://uk.geocities.com/martin.mobberley@btinternet.com/2006P1_20070108_mpm.jpg

Comet 2 degrees altitude; Sun -8 degrees. 300mm lens. 0.8 secs.

Regards,
Martin Mobberley

http://www.spaceweather.com/comets/gallery_mcnaught.htm
2006P1的照片集