MDS522.6820

Wording: Natural sciences & mathematicsAstronomyTechniques, procedures, apparatus, equipment, materialsAuxiliary observationsNot setNot setNot set

Dewmoji: πŸ”¬πŸ”­πŸŒƒ????

0
Computer science, information & general works
252,013
ℹ️
1
Philosophy & psychology
270,129
🧠
2
Religion
681,242
πŸ™
3
Society, government, & culture
1,328,382
πŸ‘«
4
Language
209,883
πŸ’¬
5
Natural sciences & mathematics
431,918
πŸ”¬
6
Applied science & technology
940,635
πŸ’‘
7
Arts & recreation
1,031,850
🎨
8
Literature & rhetoric
1,436,736
πŸ“š
9
History & geography
837,760
πŸ—ΊοΈ
50
Science
35,266
🥼
51
Mathematics
82,055
βž—
52
Astronomy
25,356
πŸ”­
53
Physics
44,008
🍎
54
Chemistry
28,260
βš—οΈ
55
Earth sciences; geology
36,663
🌎
56
Fossils & Dinosaurs
11,038
πŸ’€
57
Biology
55,751
🧬
58
Plants (Botany)
26,824
🌿
59
Animals
86,697
🐼
520
Astronomy
6,299
πŸ”­
521
Celestial mechanics
575
βš™
522
Techniques, procedures, apparatus, equipment, materials
1,635
πŸŒƒ
523
The Solar System
12,101
🌌
524
[Formerly: Maps, Observations, and Tables]
227
525
Earth (Astronomical geography)
627
🌍
526
Mathematical geography
1,986
🌐
527
Celestial navigation
208
πŸ—Ί
528
Ephemerides
191
πŸ“’
529
Chronology
1,507
⏳
522.0
70
522.1
Observatories
180
522.2
Telescopes (See also 535.83 Optics)
384
522.3
Meridional instruments
8
522.4
Extra meridional instruments
38
522.5
Auxiliary instruments
16
522.6
Auxiliary observations
472
522.7
Spheric astronomy (See also 514.6)
25
522.8
Computation for Astronomy
41
522.9
Corrections
5
522.60
522.61
522.62
Photometry (See 535.2 Optics)
32
522.63
Photography (See 535.85 Optics; 770 Photography)
93
522.64
522.65
Polarization (See 535.5 Optics)
9
522.66
522.67
Spectroscopy (See also 535.84)
33
522.68
282
522.69
522.680
522.681
522.682
154
522.683
19
522.684
1
522.685
522.686
80
522.687
522.688
522.689
522.6820
6
522.6821
522.6822
522.6823
522.6824
522.6825
3
522.6826
522.6827
522.6828
522.6829
522.68200
522.68201
522.68202
522.68203
522.68204
522.68205
522.68206
522.68207
522.68208
522.68209
6

Selected Works under MDS 522.6820 (6)

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"Far Friends"

MDS classes with significant recommendations overlap, excluding ones under the same top-level class.

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Wording

1922 Edition
Do NOT copy from the copyrighted sources. 1922 edition here, in absurd phonetic English. Use standard spelling.
Modern Language
Modern wording should be based on the Free Decimal System, on the 1922 edition of Dewey, or on the items cataloged under that MDS number. Do not take your wording from an in-copyright source.
Emoji
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