Large Sky Area Multi-Object Fiber Spectroscopic Telescope
DATA RELEASE 7 v1.1
2011.10.24 - 2019.06.08
DR7 Update
Low Resolution Search
Medium Resolution Search
Catalog Download
FITS Download

Low Resolution

Observed
Plates
Total Spectra Star STAR
(SNg or i > 10)
Galaxy QSO Unknown AFGK Star
Catalog
M Dwarf
Catalog
A Star
Catalog
Pilot
20111024-20120617
404 958,679 832,886 679,947 8,197 1,386 116,210 404,396 79,111 53,676
First year
20120928-20130603
812 1,684,724 1,538,644 1,388,721 12,752 6,066 127,262 911,134 67,864 69,026
Second year
20130910-20140603
732 1,636,474 1,510,053 1,422,521 30,388 6,304 89,729 1,097,748 79,952 70,385
Third year
20140910-20150530
738 1,644,300 1,520,759 1,437,242 26,364 8,979 88,198 1,055,794 109,236 77,958
Forth year
20150912-20160602
776 1,702,528 1,552,325 1,472,828 39,433 14,462 96,308 1,071,279 100,505 93,217
Fifth year
20160909-20170616
693 1,402,454 1,230,129 1,141,738 35,729 15,258 121,338 808,420 97,734 75,717
Sixth year
20170919-20180518
418 883,543 780,408 738,331 20,003 7,718 75,414 494,336 72,733 43,611
Seventh year
20181005-20190608
349 689,310 564,622 538,629 20,495 4,063 100,130 356,810 64,475 33,008

Medium Resolution

Medium-resolution non time-domain data Medium-resolution time-domain data Total
Total spectra
994,643 2,861,575 3,856,218
Spectra(S/N>10) 661,075 1,600,460 2,261,535
Star parameter 507,635 289,632 797,267

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.