astropy.readthedocs.io
Astronomical Coordinate Systems (astropy.coordinates) — Astropy v1.3
http://astropy.readthedocs.io/en/stable/coordinates/index.html
Astronomical Coordinate Systems (. Astronomical Coordinate Systems (. Package provides classes for representing a variety of celestial/spatial coordinates, as well as tools for converting between common coordinate systems in a uniform way. The simplest way to use. Is to use the. Objects are instantiated with a flexible and natural approach that supports inputs provided in a number of convenient formats. The following ways of initializing a coordinate are all equivalent:. 00 42 30 41 12 00. 11, -5.).
iau-comm19.org
History of Commission 19
http://www.iau-comm19.org/1471586--~administration~history.html
About IAU Commission 19. Joint IAU / IAG WG on Theory. IAU Division 1 Homepage. History of Commission 19. History of Commission 19. Past Presidents : 2012 – 1967. The list is compiled according to the IAU. President: C.-L. Huang. Vice-president: R. Gross. President: H. Schuh. Vice-president: C.-L. Huang. President: A. Brzezinski. Vice-president: C. Ma. President: V. Dehant. Vice-president : A. Brzezinski. President: D. McCarthy. Vice-president: N. Capitaine. President: J. Vondrak. President: P. Paquet.
iau-comm19.org
Meetings of interest
http://www.iau-comm19.org/112284--~contents~meetings.html
About IAU Commission 19. Joint IAU / IAG WG on Theory. IAU Division 1 Homepage. History of Commission 19. Contents Meetings of interest. EGU General Assembly - Session G3.4: Earth Rotation: Theoretical aspects, observation of temporal variations and physical interpretation. Vienna, Austria, 12.-17. April 2015. IUGG General Assembly 2015 - Session G04: Earth Rotation and Geodynamics. Prague, Czech Republic, 22. June - 02. July 2015. IAU General Assembly 2015. Honolulu, USA, 03.-14. August 2015.
iau-comm19.org
Activity Reports
http://www.iau-comm19.org/112299--~contents~reports.html
About IAU Commission 19. Joint IAU / IAG WG on Theory. IAU Division 1 Homepage. History of Commission 19. Proceedings of Commission 19 Business and Science Sesstions at IAU GA 2012. Proceedings of Commission 19 Business and Science Sesstions at IAU GA 2009. C19 Business Meeting Contributions.
skking-blog.blogspot.com
skking的深空交流道Deep Space Gateway: 五月 2015
http://skking-blog.blogspot.com/2015_05_01_archive.html
關於〈《星際效應》的時空幾何與想像〉. 12288; 二月底奧斯卡金像獎剛揭曉沒幾天就接到編輯部來信,希望能配合與2014年電影《星際效應》( Interstellar. 65289;相關的一本翻譯新書出版,在三月底前寫篇文章。因為有一段時間沒有進電影院了,也不確定有沒有什麼靈感或見解值得花時間寫下來的,就先到附近書店逛逛。很幸運的,書店裡剛好有這本《 The Science of Interstellar. 12299;一書所發展的蟲洞理論(traversable wormhole),和1994年Kip Thorne自己的科普著作《 Black Holes and Time Warps. 12288; 拙作〈《星際效應》的時空幾何與想像〉一文刊登在 《科學月刊》545期. 65288;2015 年5月),這裡提供 編輯前的版本. 12290;原稿中並沒有真正寫下愛因斯坦方程式,其實應該也不大需要,因為沒看過有人把它反過來寫。Thorne原作論述清楚,讀起來很輕鬆,旁徵博引一些最近二十年的相關研究也十分引人入勝。由於科學...發表在 Classical and Quantum Gravity.
skking-blog.blogspot.com
skking的深空交流道Deep Space Gateway: 三種天球投影下的全天星座圖
http://skking-blog.blogspot.com/2015/05/blog-post_12.html
12288; 《 天聞季報. 12299;2015年春季號「多波段看宇宙」原本排在去年夏季出刊,若干內容很早就完成了。為了解讀各波段的巡天觀測結果,才注意到有好幾種不同的天球投影方法都可能被用到。以前曾經將〈耶魯亮星表〉(Yale Bright Star Catalog)依照天體的天球赤道坐標(赤經赤緯)製作成恆星圖。這亮星表大致上包括所有肉眼可見的恆星。趁此機會透過open source的《 Starlink. 12299;程式庫〈libpal.a〉,搭配國際天文聯合會 IAU. 12299;程式庫中的〈libsofa c.a〉,將赤道坐標轉換成銀河坐標。為了視覺上不至於太過擁擠,選取了9110顆星之中較亮的4022顆。星座的圖樣基本上來自當年的《 Startchart. 12299;程式,當中有一個不大完整的〈pattern.star〉檔案。個人看著IAU的星座圖,把剩下的幾個南天星座稍微花點時間補齊了,不過星座圖樣並沒有什麼一定的標準。 12288; 莫爾威投影( Mollweide projection. 65289;、艾托夫投影( Aitoff projection.
iau-comm19.org
Members
http://www.iau-comm19.org/88872--~administration~members.html
About IAU Commission 19. Joint IAU / IAG WG on Theory. IAU Division 1 Homepage. History of Commission 19. Member Directory of Commission 19. Rotation of the Earth. Jorge del Pino BOYTEL. Yaroslav S. YATSKIV.