SUPERNOVA 2004cy IN ESO 403-G9


台灣發現的第1顆超新星 SN2004cy

從兩張發現前後的影像比較,可以看到在星系附近突然出現一個亮點,這是距離我們非常遙遠的星系中,一顆數十倍太陽質量恆星死亡劇烈爆炸發出的光,在幾千萬年後到達我們的地球。



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SUPERNOVA 2004cy IN ESO 403-G9
    Y. Chen, Z. Lin, K. Huang, H. Lin, and W. Ip, Institute of Astronomy, National Central  University, Tawain; and Y. Qiu and J. Hu, National Astronomical Observatories of China, report the discovery of an apparent supernova (mag about 15.6) on unfiltered CCD images taken on Apr. 5.87 UT with the 1-m Lulin Observatory telescope.  SN 2004cy is located at R.A. = 21h34m25s.67, Decl. = -33o23'13".7 (equinox 2000.0), which is 25".7 west and 6".1 south of the center of ESO 403-G9.  Approximate unfiltered magnitudes for the new object:  2003 Oct. 31, [19.0; 2004 Apr. 25.83, 17.5; May 27.77, 17.8; 28.77, 17.9; June 9.80, 18.2; 25.77, 18.2; 26.77, 18.4; 27.74, 18.3.

超新星2004cy位於星系ESO 403-G9

國立中央大學天文所的陳英同、林忠義、黃癸雲、林宏欽、葉永烜與北京國家天文台的裘予雷、胡景耀,在2004年4月5號利用鹿林山天文台一米望遠鏡在CCD影像(無濾鏡)中發現新的超新星(星等大約15.6)。超新星2004cy位於R.A. = 21h34m25s.67, Decl. = -33o23'13".7,其位置大概在星系ESO 403-G9中心位置的西方25".7角秒、南方6".1角秒。超新星的星等(無濾鏡)分別為:2003 Oct. 31, 19.0; 2004 Apr. 25.83, 17.5; May 27.77, 17.8; 28.77, 17.9; June 9.80, 18.2; 25.77, 18.2; 26.77, 18.4; 27.74, 18.3.