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: http://www.sao.ru/fetch/HL/leda/rawcat/a105.html
Дата изменения: Mon Dec 23 18:23:59 2013 Дата индексирования: Fri Feb 28 17:29:15 2014 Кодировка: Поисковые слова: aircraft |
Compilation of Surface Brightness |
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The surface brightness in magnitudes per square arcsec (mag arcsec-2)
Code for the type of surface brightness
>
0 |
Central or peak surface brightness |
1 |
Surface brightness at effective radius |
2 |
Effective mean surface brightness within the effective
radius (equivalent radius in which half the total flux is emitted). |
3 |
Central surface brightness for exponential fit |
Quality Flag The quality flag has the following meaning:
description of quality flag | |
---|---|
value | signification |
0 | regular measurement |
1 | uncertain measurement, its weight is decreased by a factor 2 when computing the average value |
3 | preliminary measurement, probably superseeded in a more recent publication, it is ignored unless no other measurement is available |
4 | compilation, it is ignored unless no other measurement is available |
9 | rejected measurement |
Photometric Band. The definitions are given
in the "band_codes" table:
HyperLeda | Questions: leda@univ-lyon1.fr |