Large Sky Area Multi-Object Fiber Spectroscopic Telescope
DATA RELEASE 12 v2.0
2023.09.18 - 2024.06.03
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Observed Plates: 6,602
Total Spectra: 12,602,862
Star: 12,233,809
Galaxy: 279,821
QSO: 89,232
AFGK Stellar Parameters: 8,376,135
M Giants,Dwarfs and Subdwarfs: 985,962
Line indices of A Type Stars: 734,532
WD Star Catalog: 18,286
CV Star Catalog: 646
Galaxy Population Synthesis Catalog: 28,896
Qso Emission line Feature Catalog: 23,329
| 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 Catalog |
Qso Emission line Feature Catalog |
|
| Pilot survey
(20111024-20120617)
|
404 | 863,147 | 852,300 | 9,292 | 1,555 | 417,343 | 84,900 | 62,380 | 1,530 | 34 | 12 | 693 |
| First year survey
(20120928-20130603)
|
811 | 1,556,441 | 1,536,406 | 13,783 | 6,252 | 915,051 | 65,544 | 76,888 | 1,428 | 58 | 159 | 2,325 |
| Second year survey
(20130910-20140603)
|
732 | 1,536,178 | 1,498,179 | 31,588 | 6,411 | 1,113,795 | 80,378 | 74,149 | 1,274 | 48 | 2,437 | 2,822 |
| Third year survey
(20140910-20150530)
|
738 | 1,567,522 | 1,530,364 | 27,235 | 9,923 | 1,092,969 | 108,480 | 83,961 | 1,815 | 57 | 2,578 | 2,304 |
| Forth year survey
(20150912-20160602)
|
776 | 1,563,851 | 1,507,333 | 41,526 | 14,992 | 1,069,565 | 107,156 | 94,586 | 2,303 | 97 | 4,428 | 2,069 |
| Fifth year survey
(20160909-20170616)
|
693 | 1,225,694 | 1,174,248 | 36,499 | 14,947 | 801,279 | 105,241 | 74,980 | 2,593 | 66 | 4,998 | 5,100 |
| Sixth year survey
(20170919-20180518)
|
418 | 790,992 | 762,560 | 20,684 | 7,748 | 532,246 | 77,698 | 44,239 | 1,723 | 62 | 2,653 | 1,209 |
| Seventh year survey
(20181005-20190608)
|
349 | 605,255 | 579,355 | 21,758 | 4,142 | 407,885 | 70,349 | 36,136 | 1,762 | 28 | 2,418 | 470 |
| Eighth year survey
(20191023-20200527)
|
285 | 514,513 | 487,965 | 21,206 | 5,342 | 351,394 | 60,252 | 26,774 | 1,080 | 41 | 1,951 | 737 |
| Ninth year survey
(20200918-20210612)
|
326 | 572,195 | 551,167 | 16,861 | 4,167 | 394,316 | 62,596 | 29,325 | 768 | 32 | 2,047 | 496 |
| Tenth year survey
(20201029-20220602)
|
388 | 634,712 | 607,288 | 22,940 | 4,484 | 444,425 | 62,726 | 28,149 | 767 | 31 | 3,559 | 379 |
| Eleventh year survey
(20221007-20230615)
|
363 | 498,067 | 480,849 | 14,179 | 3,039 | 356,081 | 40,624 | 29,655 | 452 | 20 | 1,540 | 533 |
| Twelfth year survey
(20230918-20240603)
|
319 | 674,295 | 665,795 | 2,270 | 6,230 | 479,786 | 60,018 | 73,310 | 791 | 72 | 116 | 4,192 |
Medium Resolution
| Medium-resolution non time-domain data | Medium-resolution time-domain data | Total | |
| Total spectra | 3,361,218 | 12,110,228 | 15,471,446 |
| Star parameter | 1,640,335 | 1,584,566 | 3,224,901 |
Standard acknowledgement
若您在本网站下载或使用了任何LAMOST数据，请在成果（包括论文、报告、演示文稿等）中明确引用上述致谢声明。建议将致谢置于文中“Acknowledgements”或“致谢”部分的显著位置。数据标识符（CSTR）请完整保留。
本工作在LAMOST(郭守敬望远镜)(https://cstr.cn/31118.02.LAMOST)数据基础上完成。LAMOST是由中国科学院国家天文台运行和管理的国家大科学装置。
If you download or use any LAMOST data from this website, you must include the following acknowledgment in your published work (e.g., papers, reports, presentations, theses). Please place it prominently in your "Acknowledgements" section.
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.
