Large Sky Area Multi-Object Fiber Spectroscopic Telescope
DATA RELEASE 7 v1.3
2011.10.24 - 2019.06.08
DR7 Update

v1.2   v1.1   v1.0   v0  
Low Resolution Search
Medium Resolution Search
Catalog Download
FITS Download

Low Resolution

Observed Plates:4,922   Total Spectra:10,640,255
Observed
Plates
Total Spectra Star STAR
(SNg or i > 10)
Galaxy QSO Unknown AFGK Star
Catalog
M Star
Catalog
A Star
Catalog
Pilot
20111024-20120617
404 958,192 874,457 682,038 8,762 1,530 73,443 401,410 87,847 65,668
First year
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
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
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
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
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
20170919-20180518
418 884,614 811,098 749,531 20,180 7,783 45,553 497,902 77,330 52,412
Seventh year
20181005-20190608
349 688,642 611,215 566,445 21,170 4,161 52,096 359,169 72,329 42,243
Total
4,922 10,640,255 9,881,260 8,922,696 198,393 66,406 494,196 6,159,427 711,936 601,186

Medium Resolution

Medium-resolution non time-domain data Medium-resolution time-domain data Total
Total spectra
992,669 2,861,575 3,854,244
Spectra(S/N>10) 659,927 1,600,460 2,260,387
Star parameter 504,356 285,562 789,918

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.