Category:88 IAU-Constellations: Difference between revisions
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[[File:IAU logo.svg|alt=IAU Logo|thumb]] |
[[File:IAU logo.svg|alt=IAU Logo|thumb]] |
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Over the course of the decade of the 1920s, the IAU officially defined the borders of the constellations as lines of constant right ascension and declination (for the equator and equinox of B1875.0). This definition is used as international standard in research papers. |
Over the course of the decade of the 1920s, the IAU officially defined the borders of the constellations as lines of constant right ascension and declination (for the equator and equinox of [https://en.wikipedia.org/wiki/Epoch_(astronomy)#Besselian_years B1875.0]). This definition is used as international standard in research papers. |
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However, there is no single date of the definition but there are actually some very important dates: |
However, there is no single date of the definition but there are actually some very important dates: |
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# 1925 Delporte's presentation of his definition of border lines. |
# 1925 Delporte's presentation of his definition of border lines. |
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# 1928 the acceptance of Delporte's suggestion. |
# 1928 the acceptance of Delporte's suggestion. |
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# 1930 publication of Delporte's |
# 1930 publication of Delporte's delineation of the constellation boundaries with an accompanying celestial atlas. |
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The [[IAU-Constellations Origins|origins of these constellations]] are diverse. |
The [[IAU-Constellations Origins|origins of these constellations]] are diverse. |
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Revision as of 10:59, 29 August 2024
Over the course of the decade of the 1920s, the IAU officially defined the borders of the constellations as lines of constant right ascension and declination (for the equator and equinox of B1875.0). This definition is used as international standard in research papers.
However, there is no single date of the definition but there are actually some very important dates:
- 1922 The international standardization of 89 Latin constellation names:
- in nominative, genitive and their three-letter-abbreviation.
- Argo, Arg included: important for historians!
- 1925 Delporte's presentation of his definition of border lines.
- 1928 the acceptance of Delporte's suggestion.
- 1930 publication of Delporte's delineation of the constellation boundaries with an accompanying celestial atlas.
The origins of these constellations are diverse.
Pages in category "88 IAU-Constellations"
The following 22 pages are in this category, out of 22 total.
