Topzle Topzle

Zodiac

Updated: Wikipedia source

Zodiac

The zodiac is a belt-shaped region of the sky that extends approximately 8° north and south celestial latitude of the ecliptic – the apparent path of the Sun across the celestial sphere over the course of the year. Within this zodiac belt appear the Moon and the brightest planets, along their orbital planes. The zodiac is divided along the ecliptic into 12 equal parts, called "signs", each occupying 30° of celestial longitude. These signs roughly correspond to the astronomical constellations with the following modern names: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces. The signs have been used to determine the time of the year by identifying each sign with the days of the year the Sun is in the respective sign. In Western astrology, and formerly astronomy, the time of each sign is associated with different attributes. The zodiacal system and its angular measurement in 360 sexagesimal degree (°) originated with Babylonian astronomy during the 1st millennium BC, probably during the Achaemenid Empire. It was communicated into Greek astronomy by the 2nd century BC, as well as into developing the Hindu zodiac. Due to the precession of the equinoxes, the time of year that the Sun is in a given constellation has changed since Babylonian times, and the point of March equinox has moved from Aries into Pisces. The zodiac forms a celestial coordinate system, or more specifically an ecliptic coordinate system, which takes the ecliptic as the origin of latitude and the Sun's position at vernal equinox as the origin of longitude. In modern astronomy, the ecliptic coordinate system is still used for tracking Solar System objects.

Tables

· Twelve signs
Aries
Aries
House
1
Unicode Character
♈︎︎
Ecliptic Longitude(a ≤ λ < b)
Latin name
Aries
Gloss
Ram
Greek name (Romanization of Greek)
Κριός (Krios)
Sanskrit name
Meṣa (मेष)
Sumero-Babylonian name
MUL LU.ḪUN.GA "Agrarian Worker", Dumuzi
Taurus
Taurus
House
2
Unicode Character
♉︎︎
Ecliptic Longitude(a ≤ λ < b)
30°
Latin name
Taurus
Gloss
Bull
Greek name (Romanization of Greek)
Ταῦρος (Tauros)
Sanskrit name
Vṛṣabha (वृषभ)
Sumero-Babylonian name
MULGU4.AN.NA "Divine Bull of Heaven"
Gemini
Gemini
House
3
Unicode Character
♊︎︎
Ecliptic Longitude(a ≤ λ < b)
60°
Latin name
Gemini
Gloss
Twins
Greek name (Romanization of Greek)
Δίδυμοι (Didymoi)
Sanskrit name
Mithuna (मिथुन)
Sumero-Babylonian name
MULMAŠ.TAB.BA.GAL.GAL "Great Twins"
Cancer
Cancer
House
4
Unicode Character
♋︎︎
Ecliptic Longitude(a ≤ λ < b)
90°
Latin name
Cancer
Gloss
Crab
Greek name (Romanization of Greek)
Καρκίνος (Karkinos)
Sanskrit name
Karka (कर्क)
Sumero-Babylonian name
MULAL.LUL "Crayfish"
Leo
Leo
House
5
Unicode Character
♌︎︎
Ecliptic Longitude(a ≤ λ < b)
120°
Latin name
Leo
Gloss
Lion
Greek name (Romanization of Greek)
Λέων (Leōn)
Sanskrit name
Siṃha (सिंह)
Sumero-Babylonian name
MULUR.GU.LA "Lion"
Virgo
Virgo
House
6
Unicode Character
♍︎︎
Ecliptic Longitude(a ≤ λ < b)
150°
Latin name
Virgo
Gloss
Maiden
Greek name (Romanization of Greek)
Παρθένος (Parthenos)
Sanskrit name
Kanyā (कन्या)
Sumero-Babylonian name
MULAB.SIN "The Furrow"* *"The goddess Shala's ear of grain"
Libra
Libra
House
7
Unicode Character
♎︎︎
Ecliptic Longitude(a ≤ λ < b)
180°
Latin name
Libra
Gloss
Scales
Greek name (Romanization of Greek)
Ζυγός (Zygos)
Sanskrit name
Tulā (तुला)
Sumero-Babylonian name
MULZIB.BA.AN.NA "Scales"
Scorpio
Scorpio
House
8
Unicode Character
♏︎︎
Ecliptic Longitude(a ≤ λ < b)
210°
Latin name
Scorpio
Gloss
Scorpion
Greek name (Romanization of Greek)
Σκoρπίος (Skorpios)
Sanskrit name
Vṛścika (वृश्चिक)
Sumero-Babylonian name
MULGIR.TAB "Scorpion"
Sagittarius
Sagittarius
House
9
Unicode Character
♐︎︎
Ecliptic Longitude(a ≤ λ < b)
240°
Latin name
Sagittarius
Gloss
(Centaur) Archer
Greek name (Romanization of Greek)
Τοξότης (Toxotēs)
Sanskrit name
Dhanuṣa (धनुष)
Sumero-Babylonian name
MULPA.BIL.SAG, Nedu "soldier"
Capricorn
Capricorn
House
10
Unicode Character
♑︎︎
Ecliptic Longitude(a ≤ λ < b)
270°
Latin name
Capricorn
Gloss
Mountain Goat or "Goat-horned" Sea-Goat
Greek name (Romanization of Greek)
Αἰγόκερως (Aigokerōs)
Sanskrit name
Makara (मकर)
Sumero-Babylonian name
MULSUḪUR.MAŠ "Goat-Fish" of Enki
Aquarius
Aquarius
House
11
Unicode Character
♒︎︎
Ecliptic Longitude(a ≤ λ < b)
300°
Latin name
Aquarius
Gloss
Water-Bearer
Greek name (Romanization of Greek)
Ὑδροχόος (Hydrokhoos)
Sanskrit name
Kumbha (कुंभ)
Sumero-Babylonian name
MULGU.LA "Great One" (i.e. Enki), later qâ "pitcher"
Pisces
Pisces
House
12
Unicode Character
♓︎︎
Ecliptic Longitude(a ≤ λ < b)
330°
Latin name
Pisces
Gloss
2 Fish
Greek name (Romanization of Greek)
Ἰχθύες (Ikhthyes)
Sanskrit name
Mīna (मीन)
Sumero-Babylonian name
MULSIM.MAḪ "Tail of the Swallow"; DU.NU.NU "fish-cord"
House
Unicode Character
Ecliptic Longitude(a ≤ λ < b)
Latin name
Gloss
Greek name (Romanization of Greek)
Sanskrit name
Sumero-Babylonian name
1
♈︎︎
Aries
Ram
Κριός (Krios)
Meṣa (मेष)
MUL LU.ḪUN.GA "Agrarian Worker", Dumuzi
2
♉︎︎
30°
Taurus
Bull
Ταῦρος (Tauros)
Vṛṣabha (वृषभ)
MULGU4.AN.NA "Divine Bull of Heaven"
3
♊︎︎
60°
Gemini
Twins
Δίδυμοι (Didymoi)
Mithuna (मिथुन)
MULMAŠ.TAB.BA.GAL.GAL "Great Twins"
4
♋︎︎
90°
Cancer
Crab
Καρκίνος (Karkinos)
Karka (कर्क)
MULAL.LUL "Crayfish"
5
♌︎︎
120°
Leo
Lion
Λέων (Leōn)
Siṃha (सिंह)
MULUR.GU.LA "Lion"
6
♍︎︎
150°
Virgo
Maiden
Παρθένος (Parthenos)
Kanyā (कन्या)
MULAB.SIN "The Furrow"* *"The goddess Shala's ear of grain"
7
♎︎︎
180°
Libra
Scales
Ζυγός (Zygos)
Tulā (तुला)
MULZIB.BA.AN.NA "Scales"
8
♏︎︎
210°
Scorpio
Scorpion
Σκoρπίος (Skorpios)
Vṛścika (वृश्चिक)
MULGIR.TAB "Scorpion"
9
♐︎︎
240°
Sagittarius
(Centaur) Archer
Τοξότης (Toxotēs)
Dhanuṣa (धनुष)
MULPA.BIL.SAG, Nedu "soldier"
10
♑︎︎
270°
Capricorn
Mountain Goat or "Goat-horned" Sea-Goat
Αἰγόκερως (Aigokerōs)
Makara (मकर)
MULSUḪUR.MAŠ "Goat-Fish" of Enki
11
♒︎︎
300°
Aquarius
Water-Bearer
Ὑδροχόος (Hydrokhoos)
Kumbha (कुंभ)
MULGU.LA "Great One" (i.e. Enki), later qâ "pitcher"
12
♓︎︎
330°
Pisces
2 Fish
Ἰχθύες (Ikhthyes)
Mīna (मीन)
MULSIM.MAḪ "Tail of the Swallow"; DU.NU.NU "fish-cord"
· Twelve signs
Glyph
Constellation
Tropical zodiac dates
Sidereal zodiac dates(Lahiri ayanamsa)
Dates based on 14 equal length sign zodiac used by Schmidt
Based on IAU boundaries
Aries
Mar 21 – Apr 19
Apr 14 – May 14
Apr 16 – May 11
Apr 18 – May 13
Cetus
May 12 – Jun 6
—[dubious – discuss]
Taurus
Apr 20 – May 20
May 15 – Jun 15
Jun 7 – Jul 2
May 13 – Jun 21
Gemini
May 21 – Jun 20
Jun 16 – Jul 16
Jul 3 – Jul 28
Jun 21 – Jul 20
Cancer
Jun 21 – Jul 22
Jul 17 – Aug 16
Jul 29 – Aug 23
Jul 20 – Aug 10
Leo
Jul 23 – Aug 22
Aug 17 – Sep 16
Aug 24 – Sep 18
Aug 10 – Sep 16
Virgo
Aug 23 – Sep 22
Sep 17 – Oct 16
Sep 19 – Oct 14
Sep 16 – Oct 30
Libra
Sep 23 – Oct 22
Oct 17 – Nov 15
Oct 15 – Nov 9
Oct 30 – Nov 23
Scorpio
Oct 23 – Nov 21
Nov 16 – Dec 15
Nov 10 – Dec 5
Nov 23 – Nov 29
Ophiuchus
Dec 6 – Dec 31
Nov 29 – Dec 17
Sagittarius
Nov 22– Dec 21
Dec 16 – Jan 14
Jan 1 – Jan 26
Dec 17 – Jan 20
Capricorn
Dec 22 – Jan 19
Jan 15 – Feb 12
Jan 27 – Feb 21
Jan 20 – Feb 16
Aquarius
Jan 20 – Feb 18
Feb 13 – Mar 14
Feb 22 – Mar 20
Feb 16 – Mar 11
Pisces
Feb 19 – Mar 20
Mar 15 – Apr 13
Mar 21 – Apr 15
Mar 11 – Apr 18
· Constellations
Aries
Aries
Name
Aries
1977 IAU boundaries (approximate)
19 April – 13 May
Solar stay
25 days
Brightest star
Hamal
Taurus
Taurus
Name
Taurus
1977 IAU boundaries (approximate)
14 May – 19 June
Solar stay
37 days
Brightest star
Aldebaran
Gemini
Gemini
Name
Gemini
1977 IAU boundaries (approximate)
20 June – 20 July
Solar stay
31 days
Brightest star
Pollux
Cancer
Cancer
Name
Cancer
1977 IAU boundaries (approximate)
21 July – 9 August
Solar stay
20 days
Brightest star
Al Tarf
Leo
Leo
Name
Leo
1977 IAU boundaries (approximate)
10 August – 15 September
Solar stay
37 days
Brightest star
Regulus
Virgo
Virgo
Name
Virgo
1977 IAU boundaries (approximate)
16 September – 30 October
Solar stay
45 days
Brightest star
Spica
Libra
Libra
Name
Libra
1977 IAU boundaries (approximate)
31 October – 22 November
Solar stay
23 days
Brightest star
Zubeneschamali
Scorpius
Scorpius
Name
Scorpius
1977 IAU boundaries (approximate)
23 November – 29 November
Solar stay
7 days
Brightest star
Antares
Ophiuchus
Ophiuchus
Name
Ophiuchus
1977 IAU boundaries (approximate)
30 November – 17 December
Solar stay
18 days
Brightest star
Rasalhague
Sagittarius
Sagittarius
Name
Sagittarius
1977 IAU boundaries (approximate)
18 December – 18 January
Solar stay
32 days
Brightest star
Kaus Australis
Capricornus
Capricornus
Name
Capricornus
1977 IAU boundaries (approximate)
19 January – 15 February
Solar stay
28 days
Brightest star
Deneb Algedi
Aquarius
Aquarius
Name
Aquarius
1977 IAU boundaries (approximate)
16 February – 11 March
Solar stay
24 days
Brightest star
Sadalsuud
Pisces
Pisces
Name
Pisces
1977 IAU boundaries (approximate)
12 March – 18 April
Solar stay
38 days
Brightest star
Alpherg
Name
1977 IAU boundaries (approximate)
Solar stay
Brightest star
Aries
19 April – 13 May
25 days
Hamal
Taurus
14 May – 19 June
37 days
Aldebaran
Gemini
20 June – 20 July
31 days
Pollux
Cancer
21 July – 9 August
20 days
Al Tarf
Leo
10 August – 15 September
37 days
Regulus
Virgo
16 September – 30 October
45 days
Spica
Libra
31 October – 22 November
23 days
Zubeneschamali
Scorpius
23 November – 29 November
7 days
Antares
Ophiuchus
30 November – 17 December
18 days
Rasalhague
Sagittarius
18 December – 18 January
32 days
Kaus Australis
Capricornus
19 January – 15 February
28 days
Deneb Algedi
Aquarius
16 February – 11 March
24 days
Sadalsuud
Pisces
12 March – 18 April
38 days
Alpherg
· Unicode characters
mw- U+2648 ♈ ARIES
mw- U+2648 ♈ ARIES
Unicode character
mw- U+2648 ♈ ARIES
text
♈︎
emoji
♈️
U+2649 ♉ TAURUS
U+2649 ♉ TAURUS
Unicode character
U+2649 ♉ TAURUS
text
♉︎
emoji
♉️
U+264A ♊ GEMINI
U+264A ♊ GEMINI
Unicode character
U+264A ♊ GEMINI
text
♊︎
emoji
♊️
U+264B ♋ CANCER
U+264B ♋ CANCER
Unicode character
U+264B ♋ CANCER
text
♋︎
emoji
♋️
U+264C ♌ LEO
U+264C ♌ LEO
Unicode character
U+264C ♌ LEO
text
♌︎
emoji
♌️
U+264D ♍ VIRGO
U+264D ♍ VIRGO
Unicode character
U+264D ♍ VIRGO
text
♍︎
emoji
♍️
U+264E ♎ LIBRA
U+264E ♎ LIBRA
Unicode character
U+264E ♎ LIBRA
text
♎︎
emoji
♎️
U+264F ♏ SCORPIUS
U+264F ♏ SCORPIUS
Unicode character
U+264F ♏ SCORPIUS
text
♏︎
emoji
♏️
U+2650 ♐ SAGITTARIUS
U+2650 ♐ SAGITTARIUS
Unicode character
U+2650 ♐ SAGITTARIUS
text
♐︎
emoji
♐️
U+2651 ♑ CAPRICORN
U+2651 ♑ CAPRICORN
Unicode character
U+2651 ♑ CAPRICORN
text
♑︎
emoji
♑️
U+2652 ♒ AQUARIUS
U+2652 ♒ AQUARIUS
Unicode character
U+2652 ♒ AQUARIUS
text
♒︎
emoji
♒️
U+2653 ♓ PISCES
U+2653 ♓ PISCES
Unicode character
U+2653 ♓ PISCES
text
♓︎
emoji
♓️
U+26CE ⛎ OPHIUCHUS
U+26CE ⛎ OPHIUCHUS
Unicode character
U+26CE ⛎ OPHIUCHUS
text
⛎︎
emoji
⛎️
Unicode character
text
emoji
mw- U+2648 ♈ ARIES
♈︎
♈️
U+2649 ♉ TAURUS
♉︎
♉️
U+264A ♊ GEMINI
♊︎
♊️
U+264B ♋ CANCER
♋︎
♋️
U+264C ♌ LEO
♌︎
♌️
U+264D ♍ VIRGO
♍︎
♍️
U+264E ♎ LIBRA
♎︎
♎️
U+264F ♏ SCORPIUS
♏︎
♏️
U+2650 ♐ SAGITTARIUS
♐︎
♐️
U+2651 ♑ CAPRICORN
♑︎
♑️
U+2652 ♒ AQUARIUS
♒︎
♒️
U+2653 ♓ PISCES
♓︎
♓️
U+26CE ⛎ OPHIUCHUS
⛎︎
⛎️

References

  1. Schmidt (1970) added a Sun sign for Cetus, falling between Aries and Taurus from May 12 – June 6, as well as the more of
  2. Ophiuchus is not a sign in traditional forms of tropical and sidereal astrology, and only appears in a few forms of astr
  3. Oxford Dictionaries
    https://web.archive.org/web/20160926223903/https://en.oxforddictionaries.com/definition/zodiac
  4. Because the signs are each 30° in longitude but constellations have irregular shapes, and because of precession, they do
  5. Journal of the British Astronomical Association
    https://ui.adsabs.harvard.edu/abs/1902JBAA...12..242N
  6. A Compleat System of Astronomy
    https://books.google.com/books?id=z3gRvA2J3DYC&pg=PA94
  7. A Concise Etymological Dictionary of the English Language
    https://books.google.com/books?id=QkfWAAAAMAAJ&pg=PA622
  8. Brill’s New Pauly
    https://doi.org/10.1163%2F1574-9347_bnp_e1213810
  9. Online Etymology Dictionary
    https://www.etymonline.com/word/zodiac
  10. History of Astronomy: An Encyclopedia
    https://books.google.com/books?id=berWESi5c5QC&pg=RA1-PA43
  11. The Almagest
  12. "Constellations in the zodiac"
    https://spaceplace.nasa.gov/starfinder3/
  13. Finding Our Place in the Solar System: The Scientific Story of the Copernican Revolution
    https://books.google.com/books?id=wFqHDwAAQBAJ&pg=PA33
  14. Archiv für Orientforschung
    https://ui.adsabs.harvard.edu/abs/1953ArOri..16..216V
  15. OED, citing J. Harris, Lexicon Technicum (1704): "Zodiack of the Comets, Cassini hath observed a certain Tract [...] wit
  16. Encyclopædia Britannica
    https://en.wikisource.org/wiki/1911_Encyclop%C3%A6dia_Britannica/Zodiac
  17. Journal of the British Astronomical Association
    https://ui.adsabs.harvard.edu/abs/1998JBAA..108....9R
  18. Babylonian menologies and the Semitic calendars
    https://gospelstudies.org.uk/biblicalarchaeology/pdf/schweich-lectures/1933_babylonian-menogies_langdon.pdf
  19. The Encyclopedia of Ancient History
    https://amor.cms.hu-berlin.de/~ossendrm/encyc-ancient-hist-2013-ossendrijver.pdf
  20. Archive for History of Exact Sciences
    https://doi.org/10.1007%2FS00407-010-0064-Z
  21. A Brief Introduction to Astronomy in the Middle East
  22. Bad Astronomy
    http://www.slate.com/blogs/bad_astronomy/2016/09/26/no_nasa_didn_t_change_your_astrological_sign.html
  23. Journal of Cuneiform Studies
    https://doi.org/10.2307%2F3515929
  24. Episodes from the Early History of Astronomy
  25. Transactions of the American Philosophical Society
    https://doi.org/10.2307%2F1006632
  26. Episodes from the Early History of Astronomy
  27. Bullinger, E.W. The Witness of the Stars
  28. Kennedy, D. James. The Real Meaning of the Zodiac.
  29. Star names - Their Lore and Meaning
  30. Influence of Babylonian Astronomy on the Subsequent Defining of the Zodiac
    https://web.archive.org/web/20090521081306/http://www.astrologer.com/aanet/pub/transit/jan2005/babylonian.htm
  31. Anaphoricus
  32. A History of Arabic Astronomy: Planetary Theories During the Golden Age of Islam
  33. The New Compleat Astrologer
  34. The History of Ptolemy's Star Catalogue
  35. Geminos's Introduction to the Phenomena
  36. Ptolemy's Tetrabiblos
  37. The History of British India
    https://books.google.com/books?id=KQAMAAAAYAAJ&pg=PA402
  38. "The Relation of Hellenistic to Indian Astrology"
    http://www.projecthindsight.com/articles/vedic.html
  39. Hinduism: An Alphabetical Guide
    https://books.google.com/books?id=DH0vmD8ghdMC&pg=PA89
  40. King, David. 'Angers Cathedral Archived 17 December 2013 at the Wayback Machine', (book review of Karine Boulanger's 201
    http://vidimus.org/issues/issue-48/feature/
  41. The Oxford Encyclopedia of Philosophy, Science, and Technology in Islam
  42. Science in the medical world: 'Book of the categories of nations
  43. Met Museum
    https://www.metmuseum.org/toah/hd/astr/hd_astr.htm
  44. Astronomy Across Cultures: The History of Non-Western Astrology
  45. Foundation for Science Technology and Civilisation
    https://www.academia.edu/2301156
  46. Bulletin d'études orientales
    https://www.jstor.org/stable/41608345
  47. Nautical Almanac and Astronomical Ephemeris for the year 1767. London: Board of Longitude, 1766.
    https://archive.org/details/nauticalalmanac07offigoog
  48. "Jahangir's 12 gold coins of the Zodiac, Mughal Empire, ca. 1620 A.D."
    https://digitalcollections.lib.washington.edu/digital/collection/ic/id/7341/
  49. MUL.APIN; Peter Whitfield, History of Astrology (2001); W. Muss-Arnolt, The Names of the Assyro-Babylonian Months and Th
  50. oracc.iaas.upenn.edu
    http://oracc.iaas.upenn.edu/ccpo/cbd/qpn/qpn.x0000076.html
  51. Alternative form: Σκορπίων Skorpiōn. Later form (with synizesis): Σκορπιός.
  52. American Heritage Dictionary of the English Language 3rd ed., s.v. "Pisces."
  53. Astronomical Society of the Pacific Leaflets
    https://ui.adsabs.harvard.edu/abs/1940ASPL....3..238A
  54. Reader's Digest
    https://web.archive.org/web/20230922174731/https://www.rd.com/list/mnemonic-devices-to-remember-anything/
  55. Never Eat Shredded Wheat: Weird Ways to Remember Things
    https://books.google.com/books?id=bFluDwAAQBAJ&pg=PT41
  56. ""Why is the vernal equinox called the "First Point of Aries" when the Sun is actually in Pisces on this date?""
    https://usm.maine.edu/planet/why-vernal-equinox-called-first-point-aries-when-sun-actually-pisces-date
  57. "Astronomical Tables of the Sun, Moon, and Planets"
    https://web.archive.org/web/20090409073139/http://www.ns1763.ca/equinox/eqindex.html
  58. Astrostyle: Astrology and daily, weekly, monthly horoscopes by the AstroTwins
    https://astrostyle.com/zodiac-sign-dates/
  59. masteringthezodiac.com
    https://masteringthezodiac.com/sidereal-astrology-dates
  60. westernsiderealastrology.wordpress.com
    https://westernsiderealastrology.wordpress.com/western-sidereal-astrology-is-real-astrology/
  61. Cafe Astrology (cafeastrology.com)
    https://cafeastrology.com/free-natal-chart-report-sidereal-vedic.html
  62. The Astrology 14 Horoscope: Your new Sun sign – how to cast and interpret it
    https://archive.org/details/astrology140000unse
  63. Los Angeles Times
    https://web.archive.org/web/20110119042525/http://articles.latimes.com/2011/jan/14/news/la-sciw-astrological-signs-20110114/2
  64. The Astrologer's Handbook
  65. Philosophy of science and the occult
  66. Ptolemy's Catalogue of Stars: a revision of the Almagest]
    https://web.archive.org/web/20130829023007/http://hbar.phys.msu.ru/gorm/almagest/Peters.htm
  67. Journal of the Royal Society of Canada
    https://ui.adsabs.harvard.edu/abs/2010JRASC.104..103T
  68. The Observatory
    https://ui.adsabs.harvard.edu/abs/1995Obs...115..261K
  69. The notion received further international media attention in January 2011, when it was reported that astronomer Parke Ku
    http://io9.com/5733004/your-zodiac-sign-may-have-changed-this-week
  70. Slate Magazine
    http://www.slate.com/blogs/bad_astronomy/2016/09/26/no_nasa_didn_t_change_your_astrological_sign.html
  71. "The Real, Real Constellations of the Zodiac"
    http://www.ips-planetarium.org/?page=a_mosley1999b
  72. The Real Constellations of the Zodiac. Archived 28 March 2016 at the Wayback Machine Lee T. Shapiro, director of Morehea
    http://www.ips-planetarium.org/?page=a_shapiro1977
  73. Geminos's Introduction to the Phenomena
  74. Dictionary.com
    http://dictionary.reference.com/browse/tropo-
  75. www.eso.org
    http://www.eso.org/public/images/potw1707a/
  76. Popular Astronomy
    https://ui.adsabs.harvard.edu/abs/1914PA.....22..547H
  77. Encyclopædia Britannica Online
    http://www.britannica.com/EBchecked/topic/657680/zodiac
  78. Encyclopædia Britannica Online
    http://www.britannica.com/EBchecked/topic/178159/ecliptic
  79. Cosmos
    https://astronomy.swin.edu.au/cosmos/Z/Zodiac
  80. "International Occultation Timing Association"
    https://occultations.org/
  81. Encyclopædia Britannica Online
    http://www.britannica.com/EBchecked/topic/40018/astronomical-map/52787/The-ecliptic-system
  82. The British Celestial Atlas: Being a Complete Guide to the Attainment of a Practical Knowledge of the Heavenly Bodies
    https://archive.org/details/britishcelestia00rubigoog
  83. The Astronomical Almanac for the Year 2017
  84. Observing Projects Using Starry Night Enthusiast
    https://books.google.com/books?id=OHCggyFCjZ0C&pg=PA42
  85. The Astrophysical Journal
    https://arxiv.org/abs/1508.04446
  86. Observing Comets, Asteroids, Meteors, and the Zodiacal Light
    https://books.google.com/books?id=jTPkq1CHlIQC&pg=PA151
  87. The Unicode Standard
    https://www.unicode.org/charts/PDF/U2600.pdf#search=Zodiacal
Image
Source:
Tip: Wheel or +/− to zoom, drag to pan, Esc to close.