Category:88 IAU-Constellations - Revision history

IanRidpath: /* Weblinks */ Corrected typo

2026-02-17T18:37:11Z

Weblinks: Corrected typo

← Older revision		Revision as of 18:37, 17 February 2026
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	* Ian Ridpath [http://www.ianridpath.com/boundaries.html Constellation boundaries]		* Ian Ridpath [http://www.ianridpath.com/boundaries.html Constellation boundaries]
	* Ian Ridpath [http://www.ianridpath.com/iaulist1.html The IAU list of constellations]		* Ian Ridpath [http://www.ianridpath.com/iaulist1.html The IAU list of constellations]
	* Ian Ridpath [http://www.ianridpath.com/iaulist2.html The IAU list of four-letter ~~constellaiton~~ abbreviations]		* Ian Ridpath [http://www.ianridpath.com/iaulist2.html The IAU list of four-letter constellation abbreviations]

	== References ==		== References ==

	<references />		<references />

IanRidpath: Added weblinks

2024-09-25T10:33:40Z

Added weblinks

← Older revision		Revision as of 10:33, 25 September 2024
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	Following Delporte's publication of the IAU constellation boundaries independent computations of the constellation areas, expressed in square degrees (deg<sup>2</sup>), were published in 1934 by Levin<ref>Arthur Everard Levin, "Areas of the Constellations", ''Astronomical Association Handbook for 1935'' (London: Astronomical Association, 1934), pp. 34-35 [[https://webspace.science.uu.nl/~gent0113/downloads/wgsn/levin_1934.pdf online link]] -- reprinted in the ''Handbook of the British Astronomical Association for 1972'' (London: British Astronomical Association, 1971), pp. 65-66.</ref> and in 1937 by Brocchi.<ref>Dalmero Francis Brocchi, "Constellations", ''Popular Astronomy: A Review of Astronomy and Allied Sciences'', '''45''' (1937), 130-134 [[https://ui.adsabs.harvard.edu/abs/1937PA.....45..130B/abstract ADS link]].</ref> Both authors give the constellation areas to the nearest 0.001 deg<sup>2</sup> but occasionally differ by one unit in the last significant place.<ref>Online data appear to be based on Levin's computations.</ref>		Following Delporte's publication of the IAU constellation boundaries independent computations of the constellation areas, expressed in square degrees (deg<sup>2</sup>), were published in 1934 by Levin<ref>Arthur Everard Levin, "Areas of the Constellations", ''Astronomical Association Handbook for 1935'' (London: Astronomical Association, 1934), pp. 34-35 [[https://webspace.science.uu.nl/~gent0113/downloads/wgsn/levin_1934.pdf online link]] -- reprinted in the ''Handbook of the British Astronomical Association for 1972'' (London: British Astronomical Association, 1971), pp. 65-66.</ref> and in 1937 by Brocchi.<ref>Dalmero Francis Brocchi, "Constellations", ''Popular Astronomy: A Review of Astronomy and Allied Sciences'', '''45''' (1937), 130-134 [[https://ui.adsabs.harvard.edu/abs/1937PA.....45..130B/abstract ADS link]].</ref> Both authors give the constellation areas to the nearest 0.001 deg<sup>2</sup> but occasionally differ by one unit in the last significant place.<ref>Online data appear to be based on Levin's computations.</ref>

			== Weblinks ==
			* Ian Ridpath [http://www.ianridpath.com/constellations1.html Constellations Andromeda–Indus]
			* Ian Ridpath [http://www.ianridpath.com/constellations2.html Constellations Lacerta–Vulpecula]
			* Ian Ridpath [http://www.ianridpath.com/boundaries.html Constellation boundaries]
			* Ian Ridpath [http://www.ianridpath.com/iaulist1.html The IAU list of constellations]
			* Ian Ridpath [http://www.ianridpath.com/iaulist2.html The IAU list of four-letter constellaiton abbreviations]

	== References ==		== References ==

	<references />		<references />

RobvGent: brackets

2024-09-01T13:06:06Z

brackets

← Older revision		Revision as of 13:06, 1 September 2024
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	== Constellation areas ==		== Constellation areas ==

	Following Delporte's publication of the IAU constellation boundaries independent computations of the constellation areas, expressed in square degrees (deg<sup>2</sup>), were published in 1934 by Levin<ref>Arthur Everard Levin, "Areas of the Constellations", ''Astronomical Association Handbook for 1935'' (London: Astronomical Association, 1934), pp. 34-35 [https://webspace.science.uu.nl/~gent0113/downloads/wgsn/levin_1934.pdf online link] -- reprinted in the ''Handbook of the British Astronomical Association for 1972'' (London: British Astronomical Association, 1971), pp. 65-66.</ref> and in 1937 by Brocchi.<ref>Dalmero Francis Brocchi, "Constellations", ''Popular Astronomy: A Review of Astronomy and Allied Sciences'', '''45''' (1937), 130-134 [https://ui.adsabs.harvard.edu/abs/1937PA.....45..130B/abstract ADS link].</ref> Both authors give the constellation areas to the nearest 0.001 deg<sup>2</sup> but occasionally differ by one unit in the last significant place.<ref>Online data appear to be based on Levin's computations.</ref>		Following Delporte's publication of the IAU constellation boundaries independent computations of the constellation areas, expressed in square degrees (deg<sup>2</sup>), were published in 1934 by Levin<ref>Arthur Everard Levin, "Areas of the Constellations", ''Astronomical Association Handbook for 1935'' (London: Astronomical Association, 1934), pp. 34-35 [[https://webspace.science.uu.nl/~gent0113/downloads/wgsn/levin_1934.pdf online link]] -- reprinted in the ''Handbook of the British Astronomical Association for 1972'' (London: British Astronomical Association, 1971), pp. 65-66.</ref> and in 1937 by Brocchi.<ref>Dalmero Francis Brocchi, "Constellations", ''Popular Astronomy: A Review of Astronomy and Allied Sciences'', '''45''' (1937), 130-134 [[https://ui.adsabs.harvard.edu/abs/1937PA.....45..130B/abstract ADS link]].</ref> Both authors give the constellation areas to the nearest 0.001 deg<sup>2</sup> but occasionally differ by one unit in the last significant place.<ref>Online data appear to be based on Levin's computations.</ref>

	== References ==		== References ==

	<references />		<references />

RobvGent: constellation areas

2024-09-01T13:04:44Z

constellation areas

← Older revision		Revision as of 13:04, 1 September 2024
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	Algorithms for determining the IAU constellation from a given celestial position were published by Roman<ref>Nancy G. Roman, "Identification of a Constellation from a Position", ''Publications of the Astronomical Society of the Pacific'', '''99''' (1987), 695-699 [[https://ui.adsabs.harvard.edu/abs/1987PASP...99..695R/abstract ADS link] / [https://www.jstor.org/stable/40678983 JSTOR link]].</ref> and Glaschke.<ref>Patrick Glaschke, "Fast Determination of Constellation Membership", eprint arXiv:1008.3966 (2010) [[https://ui.adsabs.harvard.edu/abs/2010arXiv1008.3966G/abstract ADS link]].</ref>		Algorithms for determining the IAU constellation from a given celestial position were published by Roman<ref>Nancy G. Roman, "Identification of a Constellation from a Position", ''Publications of the Astronomical Society of the Pacific'', '''99''' (1987), 695-699 [[https://ui.adsabs.harvard.edu/abs/1987PASP...99..695R/abstract ADS link] / [https://www.jstor.org/stable/40678983 JSTOR link]].</ref> and Glaschke.<ref>Patrick Glaschke, "Fast Determination of Constellation Membership", eprint arXiv:1008.3966 (2010) [[https://ui.adsabs.harvard.edu/abs/2010arXiv1008.3966G/abstract ADS link]].</ref>

			== Constellation areas ==

			Following Delporte's publication of the IAU constellation boundaries independent computations of the constellation areas, expressed in square degrees (deg<sup>2</sup>), were published in 1934 by Levin<ref>Arthur Everard Levin, "Areas of the Constellations", ''Astronomical Association Handbook for 1935'' (London: Astronomical Association, 1934), pp. 34-35 [https://webspace.science.uu.nl/~gent0113/downloads/wgsn/levin_1934.pdf online link] -- reprinted in the ''Handbook of the British Astronomical Association for 1972'' (London: British Astronomical Association, 1971), pp. 65-66.</ref> and in 1937 by Brocchi.<ref>Dalmero Francis Brocchi, "Constellations", ''Popular Astronomy: A Review of Astronomy and Allied Sciences'', '''45''' (1937), 130-134 [https://ui.adsabs.harvard.edu/abs/1937PA.....45..130B/abstract ADS link].</ref> Both authors give the constellation areas to the nearest 0.001 deg<sup>2</sup> but occasionally differ by one unit in the last significant place.<ref>Online data appear to be based on Levin's computations.</ref>

	== References ==		== References ==

	<references />		<references />

RobvGent: + Joseph

2024-08-31T16:27:16Z

+ Joseph

← Older revision		Revision as of 16:27, 31 August 2024
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	# 1925 Delporte's presentation of his definition of border lines.		# 1925 Delporte's presentation of his definition of border lines.
	# 1928 the acceptance of Delporte's suggestion.		# 1928 the acceptance of Delporte's suggestion.
	# 1930 publication of Delporte's delineation of the constellation boundaries<ref>Eugène Delporte, ''Délimitation scientifique des constellations (tables et cartes)'' (Cambridge: Cambridge University Press, 1930) [[https://historiadelaastronomia.wordpress.com/wp-content/uploads/2023/05/delporte.pdf online link]].</ref> with an accompanying celestial atlas.<ref>Eugène Delporte, ''Atlas céleste'' (Cambridge: Cambridge Unibversity Press, 1930) -- reprinted in 2013 by Cambridge University Press.</ref>		# 1930 publication of Delporte's delineation of the constellation boundaries<ref>Eugène Joseph Delporte, ''Délimitation scientifique des constellations (tables et cartes)'' (Cambridge: Cambridge University Press, 1930) [[https://historiadelaastronomia.wordpress.com/wp-content/uploads/2023/05/delporte.pdf online link]].</ref> with an accompanying celestial atlas.<ref>Eugène Joseph Delporte, ''Atlas céleste'' (Cambridge: Cambridge Unibversity Press, 1930) -- reprinted in 2013 by Cambridge University Press.</ref>

	The [[IAU-Constellations Origins\|origins of these constellations]] are diverse.		The [[IAU-Constellations Origins\|origins of these constellations]] are diverse.

RobvGent: position => constellation

2024-08-29T13:40:02Z

position => constellation

← Older revision		Revision as of 13:40, 29 August 2024
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	The [[IAU-Constellations Origins\|origins of these constellations]] are diverse.		The [[IAU-Constellations Origins\|origins of these constellations]] are diverse.

			== Constellation from a given position ==

			Algorithms for determining the IAU constellation from a given celestial position were published by Roman<ref>Nancy G. Roman, "Identification of a Constellation from a Position", ''Publications of the Astronomical Society of the Pacific'', '''99''' (1987), 695-699 [[https://ui.adsabs.harvard.edu/abs/1987PASP...99..695R/abstract ADS link] / [https://www.jstor.org/stable/40678983 JSTOR link]].</ref> and Glaschke.<ref>Patrick Glaschke, "Fast Determination of Constellation Membership", eprint arXiv:1008.3966 (2010) [[https://ui.adsabs.harvard.edu/abs/2010arXiv1008.3966G/abstract ADS link]].</ref>

	== References ==		== References ==

	<references />		<references />

RobvGent: added references

2024-08-29T13:37:07Z

added references

← Older revision		Revision as of 13:37, 29 August 2024
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	[[File:IAU logo.svg\|alt=IAU Logo\|thumb]]		[[File:IAU logo.svg\|alt=IAU Logo\|thumb]]

			== History ==

	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.		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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	# 1922 The international standardization of 89 Latin constellation names:		# 1922 The international standardization of 89 Latin constellation names:
	## in nominative, genitive and their three-letter-~~abbreviation~~.		## in nominative and genitive forms and their three-letter-abbreviations.
	## Argo, Arg included~~: important~~ for ~~historians!~~		## the defunct constellation Argo (Arg) was also included for historical reasons.
	# 1925 Delporte's presentation of his definition of border lines.		# 1925 Delporte's presentation of his definition of border lines.
	# 1928 the acceptance of Delporte's suggestion.		# 1928 the acceptance of Delporte's suggestion.
	# 1930 publication of Delporte's delineation of the constellation boundaries with an accompanying celestial atlas.		# 1930 publication of Delporte's delineation of the constellation boundaries<ref>Eugène Delporte, ''Délimitation scientifique des constellations (tables et cartes)'' (Cambridge: Cambridge University Press, 1930) [[https://historiadelaastronomia.wordpress.com/wp-content/uploads/2023/05/delporte.pdf online link]].</ref> with an accompanying celestial atlas.<ref>Eugène Delporte, ''Atlas céleste'' (Cambridge: Cambridge Unibversity Press, 1930) -- reprinted in 2013 by Cambridge University Press.</ref>

	The [[IAU-Constellations Origins\|origins of these constellations]] are diverse.		The [[IAU-Constellations Origins\|origins of these constellations]] are diverse.

			== References ==

			<references />

RobvGent: better English + wikilink

2024-08-29T10:59:27Z

better English + wikilink

← Older revision		Revision as of 10:59, 29 August 2024
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	[[File:IAU logo.svg\|alt=IAU Logo\|thumb]]		[[File:IAU logo.svg\|alt=IAU Logo\|thumb]]
	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.

	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.
	# 1928 the acceptance of Delporte's suggestion.		# 1928 the acceptance of Delporte's suggestion.
	# 1930 publication of Delporte's ~~detailed specification~~ of the constellation ~~borders~~ with an accompanying celestial atlas.		# 1930 publication of Delporte's delineation of the constellation boundaries with an accompanying celestial atlas.
	The [[IAU-Constellations Origins\|origins of these constellations]] are diverse.		The [[IAU-Constellations Origins\|origins of these constellations]] are diverse.

RobvGent: spelling

2024-08-28T21:39:57Z

spelling

← Older revision		Revision as of 21:39, 28 August 2024
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	# 1922 The international standardization of 89 Latin constellation names:		# 1922 The international standardization of 89 Latin constellation names:
	## in ~~Nominativ~~, ~~Genitiv~~ and their three-letter-abbreviation.		## in nominative, genitive and their three-letter-abbreviation.
	## Argo, Arg included: important for historians!		## Argo, Arg included: important for historians!
	# 1925 Delporte's presentation of his definition of border lines.		# 1925 Delporte's presentation of his definition of border lines.

RobvGent: expanded last item

2024-08-28T21:38:03Z

expanded last item

← Older revision		Revision as of 21:38, 28 August 2024
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	# 1925 Delporte's presentation of his definition of border lines.		# 1925 Delporte's presentation of his definition of border lines.
	# 1928 the acceptance of Delporte's suggestion.		# 1928 the acceptance of Delporte's suggestion.
	# 1930 publication of Delporte's atlas.		# 1930 publication of Delporte's detailed specification of the constellation borders with an accompanying celestial atlas.
	The [[IAU-Constellations Origins\|origins of these constellations]] are diverse.		The [[IAU-Constellations Origins\|origins of these constellations]] are diverse.