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Melvil Decimal System: 523.481

Wording: Mathematics and Science > Astronomy > Astronomical objects and astrophysics > Planets > Neptune and transneptunian > Not set

Dewmoji: πŸ”¬ > 🌌 > 🌌 > 🌍 > ? > ?

0
Information
196,272
ℹ️
1
Philosophy and Psychology
182,817
πŸ’­
2
Religion
463,619
πŸ™πŸ½
3
Social Sciences
1,017,722
πŸ‘«
4
Language
130,463
πŸ’¬
5
Mathematics and Science
322,970
πŸ”¬
6
Technology
751,859
πŸ’‘
7
Arts and Recreation
695,837
🎨
8
Literature
929,791
πŸ“š
9
Biography and History
592,368
πŸ—Ώ
50
General Science
24,934
πŸ”¬
51
Mathematics
61,944
βž—
52
Astronomy
17,388
🌌
53
Physics
34,172
🍎
54
Chemistry
22,053
βš—
55
Earth sciences & geology
28,173
🌎
56
Fossils & prehistoric life
6,394
πŸ’€
57
Life Sciences
45,977
🐠
58
Botany
17,698
🌿
59
Zoology
64,237
🐼
520
Astronomy
4,261
πŸ”­
521
Celestial Mechanics
288
βš™
522
Telescopes and handbooks
1,117
πŸŒƒ
523
Astronomical objects and astrophysics
8,728
🌌
524
Maps and Observations [No longer in use]
48
525
Earth
441
🌍
526
Geodesy
1,341
🌐
527
Celestial Navigation
101
πŸ—Ί
528
Ephemerides; Nautic almanacs
157
πŸ“’
529
Chronology
906
⏳
523.0
833
523.1
Universe
1,939
523.2
Solar system
683
523.3
Moon
410
πŸŒ•
523.4
Planets
1,222
🌍
523.5
Meteors and zodiacal light
209
523.6
Comets
224
523.7
Sun
650
β˜€οΈ
523.8
Stars
1,365
523.9
Transits and occultations
85
523.40
5
523.41
Mercury and intramercurial
69
523.42
Venus
73
523.43
Mars
211
523.44
Asteroids
74
523.45
Jupiter
85
523.46
Saturn
64
523.47
Uranus
61
523.48
Neptune and transneptunian
105
523.49
Charts, photographs, etc.
36
523.480523.481
30
523.482
25
523.483523.484523.485523.486523.487523.488523.489

Works under MDS 523.481

Wording

1922 Edition
Modern language
Emoji

"Far Friends"

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

None

What is MDS?

Melvil stands for "Melvil Decimal System," named after Melvil Dewey, the famous librarian. Melvil Dewey invented his Dewey Decimal System in 1876, and early versions of his system are in the public domain.

More recent editions of his system are in copyright, and the name "Dewey," "Dewey Decimal," "Dewey Decimal Classification" and "DDC" are registered trademarked by OCLC, who publish periodic revisions.

LibraryThing's MDS system is based on the classification work of libraries around the world, whose assignments are not copyrightable. MDS "scheduldes" (the words that describe the numbers) are user-added, and based on public domain editions of the system.

The Melvil Decimal System is NOT the Dewey Decimal System of today. Wordings, which are entered by members, can only come from public domain sources. The base system is the Free Decimal System, a public domain classification created by John Mark Ockerbloom. Where useful or necessary, wording comes from the 1922 edition of the Dewey Decimal System. Language and concepts may be changed to fit modern tastes, or to better describe books cataloged. Wordings may not come from in-copyright sources.

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