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As a major component of the LAMOST Galactic surveys, the LAMOST Spectroscopic Survey of the Galactic Anti-centre (LSS-GAC) aims to survey a significant volume of the Galactic thin/thick discs and halo for a contiguous sky area of over 3, 400 deg² centred on the Galactic anti-centre (|b| 30^, 150 l 210^), and obtain 3700 -- 9000 low resolution (R 1, 800) spectra for a statistically complete sample of 3\, M stars of all colours down to a limiting magnitued of r 17. 8\, mag (to 18. 5\, mag for limited fields). Together with Gaia, the LSS-GAC will yield a unique dataset to advance our understanding of the structure and assemblage history of the Galaxy, in particular its disk (s). In addition to the main survey, the LSS-GAC will also target hundreds of thousands objects in the vicinity fields of M\, 31 and M\, 33 and survey a significant fraction (over a million) of randomly selected very bright stars (VB; r 14 mag) in the northern hemisphere. During the Pilot and the first year Regular Surveys of LAMOST, a total of 1, 042, 586 750, 867 spectra of a signal to noise ratio S/N (7450) 10 S/N (4650) 10 have been collected. In this paper, we present a detailed description of the target selection algorithm, survey design, observations and the first data release of value-added catalogues (including radial velocities, effective temperatures, surface gravities, metallicities, values of interstellar extinction, distances, proper motions and orbital parameters) of the LSS-GAC.
Yuan et al. (Tue,) studied this question.