Large Sky Area Multi-Object Fiber Spectroscopic Telescope
DATA RELEASE 8 v1.0
2011.10.24 - 2020.05.27
Low Resolution Search
Medium Resolution Search
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LAMOST DR8 TOTAL
Observed Plates: 5,207
Star: 10,388,423
Star (SNg or i > 10): 9,396,139
Galaxy: 219,776
Qso: 71,786
Unknown: 534,091
AFGK Star Catalog: 6,478,063
M Star Catalog: 773,721
A Star Catalog:629,041
Low Resolution
Observed
Plates
Total Spectra Star STAR
(SNg or i > 10)
Galaxy QSO Unknown AFGK Star
Catalog
M Star
Catalog
A Star
Catalog
Pilot survey
(20111024-20120617)
404 958,192 874,457 682,038 8,762 1,530 73,443 401,410 87,847 65,668
First year survey
(20120928-20130603)
812 1,686,673 1,591,136 1,392,302 13,247 6,261 76,029 910,731 68,087 80,285
Second year survey
(20130910-20140603)
732 1,636,537 1,541,618 1,425,674 31,060 6,460 57,399 1,094,879 82,453 77,647
Third year survey
(20140910-20150530)
738 1,677,364 1,585,257 1,473,404 27,001 9,902 55,204 1,071,623 109,957 88,865
Forth year survey
(20150912-20160602)
776 1,705,237 1,592,042 1,481,586 40,381 15,050 57,764 1,060,982 108,339 103,359
Fifth year survey
(20160909-20170616)
693 1,402,996 1,274,437 1,151,716 36,592 15,259 76,708 762,731 105,594 90,707
Sixth year survey
(20170919-20180518)
418 884,614 811,098 749,531 20,180 7,783 45,553 497,902 77,330 52,412
Seventh year survey
(20181005-20190608)
349 688,642 611,215 566,445 21,170 4,161 52,096 359,169 72,329 42,243
Eighth year survey
(20191023-20200527)
285 573,821 507,163 473,443 21,383 5,380 39,895 318,636 61,785 27,855
Medium Resolution
Medium-resolution non time-domain data Medium-resolution time-domain data Total
Total spectra 1,479,127 4,559,091 6,038,218
Spectra(SN>10) 974,903 2,634,993 3,609,896
Star parameter 759,031 533,421 1,292,452
Standard acknowledgement

Guoshoujing Telescope (the Large Sky Area Multi-Object Fiber Spectroscopic Telescope LAMOST) is a National Major Scientific Project built by the Chinese Academy of Sciences. Funding for the project has been provided by the National Development and Reform Commission. LAMOST is operated and managed by the National Astronomical Observatories, Chinese Academy of Sciences.