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Our Galactic Neighbors The "lifestyles" of 75 neighboring galaxies are illuminated in this poster from NASA's Spitzer Space Telescope. In this composite, blue colors reveal light from an older population of stars. Tints of green represent organic molecules called polycyclic aromatic hydrocarbons, while red lumps show clouds of warm dust and gas heated by radiation from newborn stars. The galaxies are organized by shape, according to the Hubble-Tuning Fork. ²æ¡¹¤Î¶ä²Ï¤ÎÎÙ/75 ¤Î¶áÎÙ¤ÎÀ±±À¤Î¡Ö¥é¥¤¥Õ¥¹¥¿¥¤¥ë¡×¤Ï¡¢ NASA ¤Î Spitzer Space Telescope ¤«¤é¤Î¤³¤Î¥Ý¥¹¥¿¡¼¤Ë¤ª¤¤¤Æ¾È¤é¤µ¤ì¤ë¡£¤³¤Î¹çÀ®Êª¤Ë¤ª¤¤¤Æ¡¢ÀĤ¤¿§¤Ï¡¢À±¤Î¹¹¤Ë¸Å¤¤¿Í¸ý¤«¤é¸÷¤ò¸«¤»¤ë¡£¥°¥ê¡¼¥ó¤Î¿§Ä´¤Ï¡¢Â¿´Ä¼°Ë§¹á²ú²½¿åÁǤȸƤФì¤ë͵¡¤Îʬ»Ò¤òɽ¤¹¡¢°ìÊý¡¢ÀÖ¤¤²ô¤Ï¡¢ÃȤ«¤¤¤Û¤³¤ê¤ÎÂç·²¤ò¼¨¤·¡¢¤½¤·¤Æ¡¢¥¬¥¹¤Ï¡¢¿·À¸¤ÎÀ±¤«¤é¤ÎÊü¼Í¤Ë¤è¤Ã¤ÆÇ®¤¯¤Ê¤Ã¤¿¡£Hubble-Tuning Fork ¤Ë¤è¤ì¤Ð¡¢¤½¤ì¤é¤ÎÀ±±À¤Ï¡¢·Á¤Ë¤è¤Ã¤ÆÁÈ¿¥²½¤µ¤ì¤ë¡£ |
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