-
2089.
Astronomical instruments
Subjects
Scientific apparatus and instrumentsPhysical instrumentsOptical instruments
-
2090.
Astronomical models
Subjects
Astronomical instruments
-
2091.
Astronomical observations
Subjects
Astronomy
-
2092.
Astronomical observatories
Subjects
Observatories
-
2093.
Astronomical photography
Subjects
Astronomical instruments
-
2094.
Astronomical photometry
Subjects
Photometry
-
2095.
Astronomical refraction
Subjects
Spherical astronomyRefraction
-
2096.
Astronomical research
Subjects
-
2097.
Astronomical spectroscopy
Subjects
AstrophysicsAbsorption spectra
-
2098.
Astronomical tables
Genre/Form
Tables (Systematic lists)
-
2099.
Astronomy
Subjects
Space sciences
-
2100.
Astronomy education
Subjects
Teaching
-
2101.
Astrophysical jets
Subjects
AstrophysicsRadio sources (Astronomy)
-
2102.
Astrophysics
Subjects
AstronomyPhysics
-
2103.
Astures
Subjects
Celts
-
2104.
Asturian art
Subjects
Pre-Romanesque art
-
2105.
Asturian cooking
Subjects
Spanish cooking
-
2106.
Asturian literature
Subjects
-
2107.
Asturian Revolution, 1934
Subjects
Revolution of 1934, Spain
-
2108.
Asturias
Geographic names
Spain
-
2109.
Asunción (Paraguay)
Geographic names
-
2110.
Asylums
Subjects
Public welfare
-
2111.
Asymmetric synthesis
Subjects
Combinatorial chemistry
-
2112.
Asymmetric warfare
Subjects
War
Last updated dated: 20/09/2025