2006年的第一颗彗星c\2006 A1

可以很明显地看出,C/2006A1的亮度曲线与人们预期的基本吻合.有兴趣的同好可以到日本吉田诚一先生的网站看看.

看不懂

再来！
Hi all,

I visually observed C/2006 A1 (Pojmanski) this morning with a nearly full Moon in the sky - and also imaged it with a 8" f4.6 Vixen RS200 Newtonian...


CometObs -

C/2006 A1 (Pojmanski) 2006 February 12.65 UT: m1 = 6.0, Dia.= 3'.0, DC = 6, 8cm f7.5 Refract (35x)...John Drummond, (Gisborne, New Zealand) [Observed C/2006 A1 during full Moon. Easy to see the head. Much more condensed that my last observation (11 Jan, DC:4). I may be losing some outer coma (hence size) to the bright, moonlit sky. No tail seen - lost in the moonlight, but evident in tonight's photos (10' tail seen in 41cm scope). 16? alt in the SE. Stellar LM = ~10 near comet (scope)].


JPL (NASA) -

C/2006 A1 (Pojmanski)
2006 February 12.65 UT: m1=6.0, Dia.= 3'.0, DC=6/9, 8cm f7.5 Refract (35x)...John Drummond, (Gisborne, New Zealand) [Observed C/2006 A1 during full Moon. Easy to see the head. Much more condensed that my last observation (11 Jan, DC:4). I may be losing some outer coma (hence size) to the bright, moonlit sky. No tail seen - lost in the moonlight, but evident in tonight's photos (10' tail seen in 41cm scope). 16? alt in the SE. Stellar LM = ~10 near comet (scope)].


I took an image (many short exposures due to the bright moonlight) and it shows a fairly pronounced tail nearly 1 degree long. It can be seen at...

http://www.possumobservatory.co.nz/c-2006a1-pojmanski-060212-31x30sec-2min@800asa-20cm-f4,6-full_moon-add-web.jpg

or

http://tinyurl.com/83acm

Cheers  
 
John Drummond
Gisborne, New Zealand
E 178* 03', S 38* 40'
email: john_drummond@xtra.co.nz
website:  http://www.possumobservatory.co.nz

Starry Night Pro 4.5为什么更新不出来啊！

Greetings All

C/2006A1 Pojmanski

2006 Feb. 16.86 UT: m1=6.0, Dia.=3'.5, DC=6...20x80B...Andrew Pearce
(Nedlands,Western Australia)

Regards
Andrew Pearce

现在多少等了。。。。。。。。。。。。。。。 :|

5等多 ^^

[quote:df3f58f80f="Hall-Bopp"]5等多 ^^[/quote]CometObs -

C/2006 A1 (Pojmanski) 2006 February 17.65 UT: m1 = ~5.8, Dia.= 3'.0, DC = 7, 8cm f7.5 Refract (35x)...John Drummond, (Gisborne, New Zealand) [Observed C/2006 A1 with an 18 day Moon in the sky. Easy to see the head. Compact nucleus with some slight fainter coma surrounding it. Can see a short 10' tail (more evident on tonight's photos). 16? alt in the SE. Stellar LM = ~10 near comet (scope)].


JPL (NASA) -

C/2006 A1 (Pojmanski)
2006 February 17.65 UT: m1=~5.8, Dia.=3'.0, DC=7/9, 8cm f7.5 Refract (35x)...John Drummond, (Gisborne, New Zealand) [Observed C/2006 A1 with an 18 day Moon in the sky. Easy to see the head. Compact nucleus with some slight fainter coma surrounding it. Can see a short 10' tail (more evident on tonight's photos). 16? alt in the SE. Stellar LM = ~10 near comet (scope)].

现在在哪个星座？？？

:shock:

魔羯出去一点，但是要观测一定要抓紧，今天或者明天 否则就太低了
要么就等过了近日点三月初 ^^

哇，那可以去拍了啊。。。。。。。。。。。。。怎么没见同好们上片子呢？？？

2006 A1 Pojmanski:

2006 Feb 18.86: m1=5.4,   Dia=3,   DC=7,   25x100B
Faint tail seen 30' in PA 230 degrees, at times longer but not as
distinct as previous morning. Bright moonlight. Comet altitude 16
degrees. No correction for extinction.


Regards,   Jim Gifford
Bridgetown, Western Australia.
34S   116E

Greetings All

C/2006A1 Pojmanski

2006 Feb. 18.86 UT: m1=5.5, Dia.=3.5', DC=8...20x80B...Andrew Pearce
(Nedlands, Western Australia)[Very bright and well condensed comet.  
Tail easily visible even in a moonlit sky, 42' long in PA 226 deg.]

Regards
Andrew Pearce

Greetings All

C/2006A1 Pojmanski

2006 Feb. 19.85 UT: m1=5.4, Dia.=3.5', DC=7/...20x80B...Andrew Pearce
(Nedlands, Western Australia)[Some smoke in the sky affected tail
observation.  However tail still easily visible particularly first 10',
total length 32' long in PA 224 deg.]

Regards
Andrew Pearce

[quote:6bcb29b4c5="南京小栩"]哇，那可以去拍了啊。。。。。。。。。。。。。怎么没见同好们上片子呢？？？[/quote]

现在太低，再等一个星期才能拍。

[quote:36d99661ba="赵晋_木木"]魔羯出去一点，但是要观测一定要抓紧，今天或者明天 否则就太低了
要么就等过了近日点三月初 ^^[/quote]目前正在人马座，22日前后进入摩羯座内。

Greetings All

C/2006A1 Pojmanski

2006 Feb. 20.85 UT: m1=5.3, Dia.=2.8', DC=7/...20x80B...Andrew Pearce
(Nedlands, Western Australia [Tail length 30' long in PA 221 deg.]

Regards
Andrew Pearce

Greetings All

C/2006A1 Pojmanski

2006 Feb. 21.85 UT: m1=5.3, Dia.=3', DC=7/...20x80B...Andrew Pearce
(Nedlands, Western Australia . [Good view of the tail this morning.  It
is of relatively high surface brightness despite the moonlit sky.  Tail
length 1.25 deg long in PA 237 deg.]

Regards
Andrew Pearce