活动星图
发表于 2009-6-17 19:45
怎样才能看到星明天文台拍的照片呢?
tb_game 发表于 2009-6-17 05:18 PM http://www.astronomy.com.cn/bbs/images/common/back.gif参加星明巡天项目，具体见新疆乐天派网站和论坛。
skyczheng
发表于 2009-6-17 19:46
中国人的骄傲，太棒了！
yuhaobaba
发表于 2009-6-17 21:23
祝贺!不知是否有照片?
yuhaobaba
发表于 2009-6-17 21:26
祝贺!不知是否有照片?
夏雾时
发表于 2009-6-17 21:36
强烈祝贺！::070821_09.jpg::
枫舞星海
发表于 2009-6-17 21:37
祝贺！14等的话，不少入门级是看不到了
水星人
发表于 2009-6-17 22:18
相关数据：
P/2009 L2 (Yang-Gao)
Orbital Elements
The following orbital elements are taken from MPEC 2009-M05:
P/2009 L2 (Yang-Gao)
T 2009 May 19.898 TT MPC
q 1.28936 (2000.0) P Q
n 0.148535 Peri.345.164 -0.420388 +0.864808
a 3.53115 Node 259.343 -0.801425 -0.495784
e 0.63486 Incl. 16.223 -0.425431 +0.079400
P 6.64
From 48 observations 2009 June 15-16.
An explanation of the orbital elements is available.
These orbital elements are also available in forms suitable for loading into a number of popular planetarium-type software programs.
Ephemeris
The following ephemeris is at intervals of five days. A daily ephemeris covering the same time interval is also available.
Personalized ephemerides for this (and other) objects may be generated using the Minor Planet & Comet Ephemeris Service.
Recent magnitude estimates for this comet (as reported to the ICQ) may be available.
Date TT R. A. (2000) Decl. Delta r Elong.Phase m1 m2
2009 06 08 18 10.79 -21 41.5 0.303 1.310 164.6 11.913.6
2009 06 13 18 14.63 -16 48.8 0.312 1.322 166.8 10.113.7
2009 06 18 18 17.45 -12 21.9 0.327 1.336 166.7 10.113.8
2009 06 23 18 19.56 -08 28.2 0.345 1.353 164.7 11.414.0
2009 06 28 18 21.26 -05 11.3 0.369 1.372 161.8 13.414.2
2009 07 03 18 22.81 -02 30.8 0.396 1.393 158.6 15.414.4
2009 07 08 18 24.40 -00 24.5 0.427 1.416 155.4 17.414.7
2009 07 13 18 26.16 +01 11.4 0.461 1.441 152.3 19.214.9
2009 07 18 18 28.19 +02 21.0 0.499 1.467 149.3 20.715.2
2009 07 23 18 30.57 +03 08.3 0.539 1.495 146.4 22.115.4
2009 07 28 18 33.38 +03 37.4 0.583 1.525 143.6 23.315.7
2009 08 02 18 36.65 +03 51.8 0.630 1.555 140.9 24.315.9
2009 08 07 18 40.36 +03 54.9 0.680 1.587 138.2 25.216.2
2009 08 12 18 44.51 +03 49.1 0.732 1.620 135.6 26.016.4
2009 08 17 18 49.07 +03 36.7 0.788 1.653 133.0 26.616.7
2009 08 22 18 54.04 +03 19.6 0.846 1.687 130.4 27.216.9
2009 08 27 18 59.40 +02 59.4 0.907 1.722 127.7 27.617.1
2009 09 01 19 05.11 +02 37.5 0.971 1.758 125.1 28.017.4
2009 09 06 19 11.13 +02 14.9 1.038 1.794 122.5 28.317.6
2009 09 11 19 17.44 +01 52.6 1.107 1.830 119.8 28.517.8
2009 09 16 19 24.01 +01 31.0 1.179 1.867 117.2 28.618.1
2009 09 21 19 30.81 +01 10.9 1.254 1.904 114.5 28.718.3
2009 09 26 19 37.82 +00 52.6 1.331 1.941 111.8 28.718.5
2009 10 01 19 45.02 +00 36.6 1.410 1.978 109.1 28.618.7
2009 10 06 19 52.36 +00 23.1 1.491 2.016 106.3 28.418.9
2009 10 11 19 59.84 +00 12.1 1.575 2.053 103.6 28.219.1
2009 10 16 20 07.42 +00 03.8 1.660 2.091 100.8 27.919.3
2009 10 21 20 15.11 -00 01.6 1.747 2.128 98.0 27.619.5
2009 10 26 20 22.87 -00 04.2 1.836 2.166 95.2 27.219.7
2009 10 31 20 30.70 -00 04.0 1.926 2.203 92.4 26.819.9
2009 11 05 20 38.57 -00 00.9 2.018 2.241 89.5 26.320.0
2009 11 10 20 46.47 +00 04.9 2.110 2.278 86.7 25.720.2
2009 11 15 20 54.39 +00 13.3 2.203 2.316 83.8 25.120.4
2009 11 20 21 02.33 +00 24.3 2.297 2.353 80.9 24.520.5
2009 11 25 21 10.27 +00 37.9 2.391 2.390 78.0 23.820.7
2009 11 30 21 18.20 +00 53.9 2.485 2.427 75.1 23.120.8
2009 12 05 21 26.11 +01 12.1 2.580 2.463 72.2 22.421.0
水星人
发表于 2009-6-17 22:23
电报局的彗星发现命名的原文：
COMET P/2009 L2 (YANG-GAO)
Rui Yang, Hangzhou, Zhejiang, China; and Xing Gao, Urumqi,Xinjiang, China, report the discovery of a new comet on several survey images (limiting mag about 15) taken by Gao in the course of the Xingming Comet Survey using a Canon 350D camera (+ 10.7-cm f/2.8 camera lens) at Mt. Nanshan -- the new object identified as cometary by Yang.After posting on the Minor Planet Center's 'NEOCP' webpage, numerous other CCD astrometrists have reported the object to have cometary appearance during June 16.4-16.7 UT, including E. Guido and G. Sostero (remotely using a "Global Rent-a-Scope" 25-cm reflector near Mayhill, NM, U.S.A.; ten co-added unfiltered 60-s exposures show a coma of diameter about 40" and a tail nearly 90" long in p.a. 245 deg); L. Eleni (remotely using a 20-cm refractor at Tzec Maun Observatory near Cloudcroft, NM; coma of size about 36" with a short tail in p.a. 225 deg); E. Prosperi and P. Camilleri (remotely using a 36-cm reflector at Grove Creek Observatory, Trunkey, N.S.W., Australia; 30" coma with 70" tail in p.a. 240 deg); M. Suzuki (Utsunomiya, Tochigi, Japan, remotely using a "Global Rent-a-Scope" 25-cm reflector at Moorook, South Australia; coma diameter about 30"); Y. Ikari (Moriyama, Shiga-ken, Japan, 26-cm reflector; coma diameter 0'.8, with a 2'.2 tail in p.a. 253 deg); R. Ligustri (Udine, Italy; remotely using a 35-cm reflector at Moorook; fifteen co-added 60-s exposures show a coma diameter of about 30"); C. Jacques and E. Pimentel (remotely using a 25-cm reflector at Moorook; 45" coma and a broad tail 1'.5 long in p.a. 240 deg).
2009 UT R.A. (2000) Decl. Mag. Observer
June 15.80840 1816 19.40 -14 15 30.7 14.2 Yang
The available astrometry, the following preliminary
elliptical orbital elements by B. G. Marsden, and an ephemeris appear on MPEC
2009-M05.
T = 2009 May19.898 TT
Peri. = 345.164
e = 0.63486
Node= 259.343 2000.0
q = 1.28936 AU
Incl. =16.223
a =3.53115 AU
n = 0.148535
P = 6.64 years
本文摘自天之文
gohomeman1
发表于 2009-6-17 23:21
本帖最后由 gohomeman1 于 2009-6-19 13:57 编辑
彗星命名法我不太熟悉哦，希望没翻译错。
COMET P/2009 L2 (YANG-GAO)
P/2009 L2 杨-高彗星
Rui Yang, Hangzhou, Zhejiang, China; and Xing Gao, Urumqi,Xinjiang, China, report the discovery of a new comet on several survey images (limiting mag about 15) taken by Gao in the course of the Xingming Comet Survey using a Canon 350D camera (+ 10.7-cm f/2.8 camera lens) at Mt. Nanshan -- the new object identified as cometary by Yang.After posting on the Minor Planet Center's 'NEOCP' webpage, numerous other CCD astrometrists have reported the object to have cometary appearance during June 16.4-16.7 UT, including E. Guido and G. Sostero (remotely using a "Global Rent-a-Scope" 25-cm reflector near Mayhill, NM, U.S.A.; ten co-added unfiltered 60-s exposures show a coma of diameter about 40" and a tail nearly 90" long in p.a. 245 deg); L. Eleni (remotely using a 20-cm refractor at Tzec Maun Observatory near Cloudcroft, NM; coma of size about 36" with a short tail in p.a. 225 deg); E. Prosperi and P. Camilleri (remotely using a 36-cm reflector at Grove Creek Observatory, Trunkey, N.S.W., Australia; 30" coma with 70" tail in p.a. 240 deg); M. Suzuki (Utsunomiya, Tochigi, Japan, remotely using a "Global Rent-a-Scope" 25-cm reflector at Moorook, South Australia; coma diameter about 30"); Y. Ikari (Moriyama, Shiga-ken, Japan, 26-cm reflector; coma diameter 0'.8, with a 2'.2 tail in p.a. 253 deg); R. Ligustri (Udine, Italy; remotely using a 35-cm reflector at Moorook; fifteen co-added 60-s exposures show a coma diameter of about 30"); C. Jacques and E. Pimentel (remotely using a 25-cm reflector at Moorook; 45" coma and a broad tail 1'.5 long in p.a. 240 deg).
中国浙江杭州的杨睿和新疆乌鲁木齐的高兴报告说，他们在南山星明天文台的多张巡天图像中发现了一颗新的彗星（图像可辨析的极限星等约为15视星等），这些图像由高兴同志使用佳能350D拍摄（镜头焦距+ 10.7-cm，光圈f2.8），并由杨睿同志辨识为彗星状天体。当他们在小行星中心的“NEOCP”网站发布消息后，许多天文观测者报告说在国际标准时间6.16的4点~7点时间段内在该天区观测到了彗星。后面是报告者名录及观测结果：
E. Guido和G. Sostero使用位于美国新墨西哥州Mayhill“全球可租用的”的25"反射望远镜，远程拍摄并叠加10张照片（每张曝光60秒），显示彗发直径约40角秒,彗尾约90角秒长，指向方位角245°； L. Eleni远程使用位于新墨西哥州Cloudcroft市附近的Tzec Maun天文台的20cm反射望远镜，发现彗发直径约36角秒，并有一短尾，指向方位角225°；E. Prosperi和P. Camilleri远程使用澳大利亚Trunkey市附近Grove Creek天文台的36cm反射望远镜，看到彗发直径30角秒，彗尾约70角秒，指向方位角240°；日本本州枥木县宇都宫市的M. Suzuki，远程使用南澳大利亚Moorook市的“可全球租用” 的25cm反射望远镜，报告彗发直径约30角秒；日本滋贺县守山市的Y. Ikari使用26cm反射望远镜报告彗发直径约0.8角分，彗尾长约2.2角分，指向方位角253°；意大利乌迪内市的R. Ligustri远程使用澳州南部Moorook市的35cm反射望远镜，叠加15张曝光60秒的照片，显示彗发直径约30角秒；C. Jacques和E. Pimentel也使用Moorook市附近的25cm反射望远镜，发现彗发直径约45角秒，宽阔的彗尾长约1.5角分，指向方位角240°。
2009 UT R.A. (2000) Decl. Mag. Observer
June 15.80840 1816 19.40 -14 15 30.7 14.2 Yang
世界标准时2009.6.15.80840，赤经（按2000年天文历表）18时16分19.40秒，赤纬-14°15'30.7",视星等14.2，观测者 杨睿
The available astrometry, the following preliminary elliptical orbital elements by B. G. Marsden, and an ephemeris appear on MPEC 2009-M05.
下述天体测定数据对大家会有用，彗星的椭圆轨道由B. G. Marsden计算得到。本彗星已经编入星历表MPEG 2009-M05中。
T = 2009 May19.898 TT 杨-高彗星在国际标准时间2009.5.19.898过近日点
Peri. = 345.164 近日点角距=345.164°（近日点与轨道和黄道面相交的升交点之间的角度差）
e = 0.63486 轨道偏心率=0.63486（0=正圆，1=抛物线）
Node= 259.343 2000.0 升交点黄经=259.343°（彗星轨道和黄道面相交的升交点与黄道上春分点的角度差，以2000年历表天球数据为准）
q = 1.28936 AU 近日点=1.28936天文单位
Incl. =16.223 轨道倾角=16.223°（与黄道面夹角）
a =3.53115 AU 半长轴=3.53115天文单位
n = 0.148535 平均日运动=0.148535°（平均每天在天球上移动多少度）
P = 6.64 years 轨道周期=6.64年
PS：由于地球自转轴的进动，天体在天球的经纬度自然就会时刻改变。所以要说明以哪一年的数据为准。当前都是采用J.2000的数据。彗尾指向方位角一般指向以天球正北向为0°。从各位后续观测看，很显然望远镜越大，观测效果越好。而彗星正从南天飞往北天，当前在巨蛇座蛇尾部分天区。欢迎转载引用，但请注明翻译者。——gohomeman1译注。
gohomeman1
发表于 2009-6-18 00:05
不好意思，本人不使用仪器观天的，所以翻译估计有错误。不过这串数据我还勉强懂，前面的是时间，比如2009.7.1预计其天球坐标是赤经18时22分21.6秒，赤纬- 3°15'12"，预计视星等为14.4等，视角约1.29角分。
yangruiemc3
发表于 2009-6-18 00:18
谢谢大家的关注，确实非常幸运！::070821_13.jpg::
16# 星辉
gohomeman1
发表于 2009-6-18 00:29
谢谢大家的关注，确实非常幸运！::070821_13.jpg::
16# 星辉
yangruiemc3 发表于 2009-6-18 00:18 http://www.astronomy.com.cn/bbs/images/common/back.gif
不好意思，你能自己解释一下这些轨道根数吗，省得我来做不精确的翻译。
新疆高兴
发表于 2009-6-18 05:27
各参数解释
http://cmcn.y234.cn/?p=13
另：翻译中有一个小小的错误，就是图片的极限星等约是１５等，不是彗星的亮度，彗星亮度大概１４．１等左右。
gohomeman1
发表于 2009-6-18 09:55
谢谢指正，马上改。
水星人
发表于 2009-6-18 09:59
51L和53L就是彗星的发现者吧，恭喜！
七月流火2
发表于 2009-6-18 10:31
楼上眼尖,呵呵
ssry
发表于 2009-6-18 16:43
36# 新疆高兴
看来是我孤陋寡闻了,去年去南山未与高兴兄见面甚是遗憾,最近上网少也少关注星明天文台,惭愧!
skyczheng
发表于 2009-6-19 00:19
关注事态进展。楼上的辛苦了！
活动星图
发表于 2009-6-19 01:14
楼上眼尖,呵呵
七月流火2 发表于 2009-6-18 10:31 AM http://www.astronomy.com.cn/bbs/images/common/back.gif这么好的眼睛不参加项目可惜了。。。
莱因哈特
发表于 2009-6-19 11:14
羡慕啊::42::::cayanjing::