f*r
发帖数: 3968 | 1 C/2002 C1(Ikeya-Zhang)池谷—张彗星详细资料
图片资料主要来自彗星发现主页 收集整理 覃 育
发现日期
2002年2月1日
发现者
Kaoru Ikeya (Shizuoka, Japan), Daqing Zhang (Henan province, China), P. M.
Raymundo (Salvador, Brazil)
彗星照片
轨道根数（摘自MPC 44861）
C/2002 C1 (Ikeya-Zhang)
T 2002 Mar. 18.9784 TT MPCM
q 0.507061 (2000.0) P Q
z +0.019502 Peri. 34.6666 -0.5491635 -0.6906790
Node 93.3718 +0.6195893 -0.7143048
e 0.9901 |
|
f*r
发帖数: 3968 | 2 C/2002 C1(Ikeya-Zhang)池谷—张彗星详细资料
图片资料主要来自彗星发现主页 收集整理 覃 育
发现日期
2002年2月1日
发现者
Kaoru Ikeya (Shizuoka, Japan), Daqing Zhang (Henan province, China), P. M.
Raymundo (Salvador, Brazil)
彗星照片
轨道根数（摘自MPC 44861）
C/2002 C1 (Ikeya-Zhang)
T 2002 Mar. 18.9784 TT MPCM
q 0.507061 (2000.0) P Q
z +0.019502 Peri. 34.6666 -0.5491635 -0.6906790
Node 93.3718 +0.6195893 -0.7143048
e 0.9901 |
|
s******o
发帖数: 298 | 3 从www.space.com的一篇文章上cut一段：）
Ancient visitor returns
Soon after a preliminary orbit was calculated for Ikeya-Zhang, some orbital
experts, lead by Syuichi Nakano of Japan, noticed a similarity to a pair of
much earlier comets that appeared in 1532 and 1661.
The 1532 comet, in particular, was a strikingly bright comet, according to
Oriental records. Curiously, during the first week or two that Ikeya-Zhang
was under careful scrutiny by observers worldwide it appeared to be brightening
at an unusuall |
|
s******o
发帖数: 298 | 4 从www.space.com的一篇文章上cut一段：）
Ancient visitor returns
Soon after a preliminary orbit was calculated for Ikeya-Zhang, some orbital
experts, lead by Syuichi Nakano of Japan, noticed a similarity to a pair of
much earlier comets that appeared in 1532 and 1661.
The 1532 comet, in particular, was a strikingly bright comet, according to
Oriental records. Curiously, during the first week or two that Ikeya-Zhang
was under careful scrutiny by observers worldwide it appeared to be brightening
at an unusuall |
|
|
f*r
发帖数: 3968 | 6 池谷-张彗星观测指南(4月7日～5月8日）
作者 覃 育
设定观测地点：南宁（其他地区观测者可参照，地平高度、时间等数值会略有差异，总的
原则是纬度越高越有利于观测）
池谷-张彗星是第一颗以中国天文爱好者名字命名的彗星，也是新千年第二颗肉眼可见的
明亮彗星。该彗星由日本著名彗星猎手池谷薰和中国天文爱好者张大庆分别独立发现，根
据国际天文学联合会颁布的彗星命名规则，彗星以头两位（最多不能超过3人）独立发现
者的名字命名。它的编号是C2002 C1 Ikeya-Zhang。
池谷-张彗星已于3月份通过近日点，由昏星变为晨星。4月份要观测到它，须在后半夜。5
月初后，随着彗星的运动，它的地平高度越来越高，前半夜也可以看到。5月8日以后，彗
星亮度已经降到6等，肉眼无法观测。下面我们就具体来分析它的观测条件和时机。
4月7日凌晨5点，池谷-张彗星开始升上地平线，但此时它的地平高度还太低，加上有一弯
残月的干扰，很难观测到。但随着时间推移，彗星的观测条件逐日转好。到了13日凌晨5
点，彗星已经升至地平高度15度以上，方位在东北方向，位置在仙后座，亮度达4.2等左
右。在灯光影响较弱的地区完全可 |
|
s******o
发帖数: 298 | 7 THE EDGAR WILSON AWARD
The Smithsonian Astrophysical Observatory announces that the
2002 Edgar Wilson Award for the discovery of comets (cf. IAUC 7652),
is being divided among the following seven individuals: Vance Avery
Petriew, Regina, SK, Canada, for P/2001 Q2; Kaoru Ikeya, Mori,
Shuchi, Shizuoka, Japan, and Daqing Zhang, Kaifeng, Henan province,
China, for C/2002 C1; Douglas Snyder, Palominas, AZ, U.S.A., and
Shigeki Murakami, Matsunoyama, Niigata, Japan, for C/2002 E2; Syogo
Utsunomiya, Min |
|
s*****t
发帖数: 1994 | 8 A Galaxy is not a Comet
Credit & Copyright: Juan Carlos Casado
Explanation: This gorgeous galaxy and comet portrait was recorded on April 5th, 2002, in the skies over the Oriental Pyrenees near Figueres, Spain. From a site above 1,100 meters, astrophotographer Juan Carlos Casado used a guided time exposure, fast
film, and a telephoto lens to capture the predicted conjunction of the bright Comet Ikeya-Zhang (right) and the Andromeda Galaxy (left). This stunning celestial scene would also have bee |
|
s*****t
发帖数: 1994 | 9 Comet McNaught Over Catalonia
Credit & Copyright: Juan Casado (skylook.net)
Explanation: This past weekend Comet McNaught peaked at a brightness that
surpassed even Venus. Fascinated sky enthusiasts in the Earth's northern
hemisphere were treated to an instantly visible comet head and a faint
elongated tail near sunrise and sunset. Recent brightness estimates had
Comet McNaught brighter than magnitude -5 (minus five) over this past
weekend, making it the brightest comet since Comet Ikeya-Seki in |
|
f*r
发帖数: 3968 | 10 池谷-张彗星观测指南(4月7日～5月8日）
作者 覃 育
设定观测地点：南宁（其他地区观测者可参照，地平高度、时间等数值会略有差异，总的
原则是纬度越高越有利于观测）
池谷-张彗星是第一颗以中国天文爱好者名字命名的彗星，也是新千年第二颗肉眼可见的
明亮彗星。该彗星由日本著名彗星猎手池谷薰和中国天文爱好者张大庆分别独立发现，根
据国际天文学联合会颁布的彗星命名规则，彗星以头两位（最多不能超过3人）独立发现
者的名字命名。它的编号是C2002 C1 Ikeya-Zhang。
池谷-张彗星已于3月份通过近日点，由昏星变为晨星。4月份要观测到它，须在后半夜。5
月初后，随着彗星的运动，它的地平高度越来越高，前半夜也可以看到。5月8日以后，彗
星亮度已经降到6等，肉眼无法观测。下面我们就具体来分析它的观测条件和时机。
4月7日凌晨5点，池谷-张彗星开始升上地平线，但此时它的地平高度还太低，加上有一弯
残月的干扰，很难观测到。但随着时间推移，彗星的观测条件逐日转好。到了13日凌晨5
点，彗星已经升至地平高度15度以上，方位在东北方向，位置在仙后座，亮度达4.2等左
右。在灯光影响较弱的地区完全可 |
|
s******o
发帖数: 298 | 11 THE EDGAR WILSON AWARD
The Smithsonian Astrophysical Observatory announces that the
2002 Edgar Wilson Award for the discovery of comets (cf. IAUC 7652),
is being divided among the following seven individuals: Vance Avery
Petriew, Regina, SK, Canada, for P/2001 Q2; Kaoru Ikeya, Mori,
Shuchi, Shizuoka, Japan, and Daqing Zhang, Kaifeng, Henan province,
China, for C/2002 C1; Douglas Snyder, Palominas, AZ, U.S.A., and
Shigeki Murakami, Matsunoyama, Niigata, Japan, for C/2002 E2; Syogo
Utsunomiya, Min |
|
s*****t
发帖数: 1994 | 12 A Galaxy is not a Comet
Credit & Copyright: Juan Carlos Casado
Explanation: This gorgeous galaxy and comet portrait was recorded on April 5th, 2002, in the skies over the Oriental Pyrenees near Figueres, Spain. From a site above 1,100 meters, astrophotographer Juan Carlos Casado used a guided time exposure, fast
film, and a telephoto lens to capture the predicted conjunction of the bright Comet Ikeya-Zhang (right) and the Andromeda Galaxy (left). This stunning celestial scene would also have bee |
|
s*****t
发帖数: 1994 | 13 Comet McNaught Over Catalonia
Credit & Copyright: Juan Casado (skylook.net)
Explanation: This past weekend Comet McNaught peaked at a brightness that
surpassed even Venus. Fascinated sky enthusiasts in the Earth's northern
hemisphere were treated to an instantly visible comet head and a faint
elongated tail near sunrise and sunset. Recent brightness estimates had
Comet McNaught brighter than magnitude -5 (minus five) over this past
weekend, making it the brightest comet since Comet Ikeya-Seki in |
|
