NAOC and Steward Observatory The South Galactic Cap U-band Sky Survey with the Bok 2.3m Telescope. Fan Zhou NAOC. Oct 16, 2009 Kaifeng. Why do we need the survey?. To supply the input source catalogue for LAMOST;
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The South Galactic Cap U-band Sky Survey with the Bok 2.3m Telescope
Oct 16, 2009 Kaifeng
图1：SDSS测光中的恒星（×），星系（△）和类星体（其中红移z< 3.5的源用□表示，红移z≥ 3.5的源用■表示）的双色图。
The Bok 90 inch (2.3 meter) Reflector Telescope