Large Sky Area Multi-Object Fiber Spectroscopic Telescope
DATA RELEASE 8 v2.0
2011.10.24 - 2020.05.27
v1.1   v1.0   v0
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Low Resolution
Observed Plates: 5,207
Total Spectra: 10,633,515
Star: 10,336,752
Galaxy: 224,702
QSO: 72,061
AFGK Stellar Parameters: 6,684,413
M Giants,Dwarfs and Subdwarfs: 755,402
Line indices of A Type Stars: 625,476
WD Star Catalog: 15,601
CV Star Catalog: 455
Galaxy Population Synthesis Catalog: 21,719
Qso Emission line Feature Catalog:17,824
Observed
Plates
Total Spectra Star Galaxy QSO AFGK Stellar
Parameters
M Giants,Dwarfs
and Subdwarfs
Line indices of
A Type Stars
WD Star
Catalog
CV Star
Catalog
Galaxy Population
Synthesis of Galaxies
Qso Emission line
Feature Catalog
Pilot survey
(20111024-20120617)
404 880,047 869,204 9,296 1,547 417,753 84,793 65,402 1,547 32 12 693
First year survey
(20120928-20130603)
812 1,606,076 1,585,990 13,821 6,265 934,247 66,650 79,966 1,468 57 159 2,327
Second year survey
(20130910-20140603)
732 1,576,031 1,537,700 31,860 6,471 1,125,840 80,847 77,458 1,306 41 2,438 2,827
Third year survey
(20140910-20150530)
738 1,618,620 1,581,233 27,412 9,975 1,103,981 108,500 88,597 1,828 54 2,579 2,306
Forth year survey
(20150912-20160602)
776 1,644,244 1,587,582 41,558 15,104 1,100,576 106,647 103,115 2,342 82 4,434 2,075
Fifth year survey
(20160909-20170616)
693 1,319,376 1,267,099 36,984 15,293 790,723 103,483 89,972 2,700 64 5,075 5,173
Sixth year survey
(20170919-20180518)
418 834,596 806,118 20,659 7,819 513,531 76,083 52,091 1,744 60 2,653 1,209
Seventh year survey
(20181005-20190608)
349 625,273 599,325 21,752 4,196 370,859 68,770 41,155 1,579 25 2,418 473
Eighth year survey
(20191023-20200527)
285 529,252 502,501 21,360 5,391 326,903 59,629 27,720 1,087 40 1,951 741
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Medium Resolution
Medium-resolution non time-domain data Medium-resolution time-domain data
Total spectra 1,465,789 4,510,193
Star parameter 717,571 512,736
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.