LAMOST Data Release 11 v2.0
Publish Time:2025-09-26 
LAMOST Data Release 11 v2.0 contains LAMOST medium/low resolution observations of the sky and catalog information from October 24, 2011 to June 15, 2023. A total of 6,283 plates were observed during the low resolution sky survey, and 11,931,197 spectra were obtained, including 11,570,626 stellar spectra,  277,566 galactic spectra, and  83,005 quasar spectra; It contains 7,898,024 records of atmospheric parameter information for A/F/G/K stars,  926,048 records of M-type stars and their parameter information, 661,420 records of A-type star parameter information, 17,501 of white dwarf star information, 572 of cataclysmic variable stars, 28,780 of galaxy constellation synthesis information, and 19,137 of quasar characteristic emission line information. A total of 13,156,050 spectra in 2,393 plates were obtained through mid-resolution sky surveys, including 2,737,394 non time domain spectra and 10,418,656 time domain spectra. Medium resolution star parameter catalog information 2,594,070 rows in total, including 1,301,8287 rows for non-time domain observations and 1,292,242 rows for time-domain observations.
· Data Access ·
 
Data Website
LAMOST Data Release DR11 V2.0 LRS catalogue search
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♦Introduction♦
Keywords
LAMOST , Spectrum , Catalog
Data Volume
46567295 rows 3.38 TB
Sharing Method
online
Sharing Scope
Public
DOI
CSTR
VO Identifier
ivo://China-VO/data/LAMOST/DR11/V2.0/
♦Sub-datasets and Tables♦
♦Contact Author♦
Author
LAMOST Operation and Development Center
Email
support(at)lamost.org
♦Contact Publisher ♦
Email
support(at)china-vo.org
Phone
+86-10-64807973
Institution
National Astronomical Data Center
♦Tags♦
waveband
Optical
telescope or project
Large Sky Area Multi-Object Fiber Spectroscopic Telescope（LAMOST）
subject
Cosmology and Galaxies
Star and Interstellar Matter
data type
Spectrum Data
Catalog Data
production age
1980-
content level
Research