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Melvil Decimal System: 523.01

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

Dewmoji: πŸ”¬ > 🌌 > 🌌 > ? > ?

0
Information
115,954
ℹ️
1
Philosophy and Psychology
115,844
πŸ’­
2
Religion
351,090
πŸ™πŸ½
3
Social Sciences
554,451
πŸ‘«
4
Language
75,777
πŸ’¬
5
Mathematics and Science
181,736
πŸ”¬
6
Technology
414,821
πŸ’‘
7
Arts and Recreation
444,897
🎨
8
Literature
605,140
πŸ“š
9
Biography and History
396,598
πŸ—Ώ
50
General Science
17,000
πŸ”¬
51
Mathematics
32,369
βž—
52
Astronomy
10,717
🌌
53
Physics
16,578
🍎
54
Chemistry
9,875
βš—
55
Earth sciences & geology
15,630
🌎
56
Fossils & prehistoric life
4,102
πŸ’€
57
Life Sciences
24,338
🐠
58
Botany
11,208
🌿
59
Zoology
39,919
🐼
520
Astronomy
2,739
πŸ”­
521
Celestial Mechanics
169
βš™
522
Telescopes and handbooks
719
πŸŒƒ
523
Astronomical objects and astrophysics
5,307
🌌
524
Maps and Observations [No longer in use]
20
525
Earth
250
🌍
526
Geodesy
760
🌐
527
Celestial Navigation
83
πŸ—Ί
528
Ephemerides; Nautic almanacs
88
πŸ“’
529
Chronology
582
⏳
523.0
312
523.1
Universe
1,062
523.2
Solar system
426
523.3
Moon
284
πŸŒ•
523.4
Planets
809
🌍
523.5
Meteors and zodiacal light
123
523.6
Comets
155
523.7
Sun
364
β˜€οΈ
523.8
Stars
790
523.9
Transits and occultations
47
523.00
18
523.01
263
523.02
26
523.03523.04523.05
1
523.06523.07523.08
2
523.09
2
523.010
21
523.011523.012523.013
6
523.014523.015
4
523.016
10
523.017523.018
13
523.019
31

Works under MDS 523.01

1–50 of 247 ( next )titles | covers | shelf
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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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