The Antoniadi scale was invented by Eugène Antoniadi, a Greek astronomer, who lived from 1870 to 1944. Living most of his life in France, he spent his time viewing Mars from Camille Flammarion's observatory. He was very prestigious and was eventually given access to the Meudon Observatory, the largest of the time.
Current usageedit
Now the scale considered as the metric system of astronomical seeing, being used as a default measurement all over the world. Until recently in 2018, astronomers have been debating whether a new system with more categories is necessary.
Descriptionedit
The scale is a five-point system, with 1 being the best seeing conditions and 5 being the worst. The actual definitions are as follows:
(I.) Perfect seeing, without a quiver.
(II.) Slight quivering of the image with moments of calm lasting several seconds.
(III.) Moderate seeing with larger air tremors that blur the image.
(IV.) Poor seeing, constant troublesome undulations of the image.
(V.) Very bad seeing, hardly stable enough to allow a rough sketch to be made.
Note that the scale is usually indicated by use of a Roman numeral or an ordinary number.[2]
Other ways of indicating seeingedit
Astronomers have devised several methods for defining the quality of seeing apart from the Antoniadi scale, including:
antoniadi, scale, system, used, amateur, astronomers, categorise, weather, conditions, when, viewing, stars, night, contents, invention, current, usage, description, other, ways, indicating, seeing, references, external, linksinvention, edit, nbsp, antoniadi, . The Antoniadi scale is a system used by amateur astronomers to categorise the weather conditions when viewing the stars at night 1 Contents 1 Invention 2 Current usage 3 Description 4 Other ways of indicating seeing 5 References 6 External linksInvention edit nbsp E M Antoniadi The Antoniadi scale was invented by Eugene Antoniadi a Greek astronomer who lived from 1870 to 1944 Living most of his life in France he spent his time viewing Mars from Camille Flammarion s observatory He was very prestigious and was eventually given access to the Meudon Observatory the largest of the time Current usage editNow the scale considered as the metric system of astronomical seeing being used as a default measurement all over the world Until recently in 2018 astronomers have been debating whether a new system with more categories is necessary Description editThe scale is a five point system with 1 being the best seeing conditions and 5 being the worst The actual definitions are as follows I Perfect seeing without a quiver II Slight quivering of the image with moments of calm lasting several seconds III Moderate seeing with larger air tremors that blur the image IV Poor seeing constant troublesome undulations of the image V Very bad seeing hardly stable enough to allow a rough sketch to be made Note that the scale is usually indicated by use of a Roman numeral or an ordinary number 2 Other ways of indicating seeing editAstronomers have devised several methods for defining the quality of seeing apart from the Antoniadi scale including Transparency Limiting magnitude a light meterReferences edit Antoniadi Seeing Scale Astronomy Now 76 Nov 2002 Ridpath Ian 2012 A Dictionary of Astronomy Second ed Oxford University Press ISBN 978 0199609055 External links edithttps www webcitation org 5knIUG6ml url http www geocities com kev woodward seeingscale htm archived 2009 10 25 Antoniadi scale html Archived 2007 11 09 at the Wayback Machine Portals nbsp Astronomy nbsp Stars nbsp Spaceflight nbsp Outer space nbsp Solar System Retrieved from https en wikipedia org w index php title Antoniadi scale amp oldid 1221971914, wikipedia, wiki, book, books, library,
