tiān wén > kāi fàng xīng tuán
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No. 1
   kāi fàng xīng tuán (openclusters)
   kāi fàng xīng tuán yóu shàng bǎi nián qīng héng xīng sōng sàn zài xíng chéng men tōng cháng xiāng yǐn bìng shí fēn jǐn bìng qiě zài jīng guò duàn tiān wén xué shàng de hěn duǎn shí jiān hòu biàn bēn dōng men bèi chēng wéi xīng xīng tuán yīn wéi men tōng cháng cún zài xīng de yín pán zhōng diǎn xíng de kāi fàng xīng tuán de kuà xiǎo 50 guāng nián
   piàn shì kāi fàng xīng tuán ngc3293, bāo hán zhì shǎo 50 héng xīng shì fēi cháng nián qīng de xīng tuán
No. 2
   kāi fàng xīng tuán (OpenClusters)
   kāi fàng xīng tuán yóu shàng bǎi nián qīng héng xīng sōng sàn zài xíng chéng men tōng cháng xiāng yǐn bìng shí fēn jǐn bìng qiě zài jīng guò duàn tiān wén xué shàng de hěn duǎn shí jiān hòu biàn bēn dōng men bèi chēng wéixīng xīng tuán”, yīn wéi men tōng cháng cún zài xīng de yín pán zhōng kāi fàng xīng tuán de zhí jìng bān zài shí guāng nián zuǒ yòu
   piàn shì kāi fàng xīng tuán NGC3293, bāo hán zhì shǎo 50 héng xīng shì fēi cháng nián qīng de xīng tuán