TOTAL LUNAR ECLIPSE OF FEBRUARY 20-21, 2008

VISUAL BRIGHTNESS ESTIMATES

 

 

 

Observer

Brazilian City (State)

Danjon Number (L)

Total Magnitude of the Moon at Mid-Totality

Carlos A. Adib

Tramandaí (RS)

3.0±0.5

-

Adriano Aubert S. Barros

Maceió (AL)

3.0±0.3

-2.9±0.3

 Moshe Bain

São Paulo (SP)

3.0±0.5

-

Saulo M. Filho

Fortaleza (CE)

3.5±0.5

-

Tasso A. J. Napoleão

São Paulo (SP)

3.2±0.3

-

Willian C. Souza

São Paulo (SP)

2.5±0.5

-2.4±0.6 (cloud interference)

Mean Mid-Totality Danjon Number (L)

3.03±0.13

-2.6±0.5*

Mean Magnitude of the Moon at Mid-Totality **

-2.8±0.3**

*According to the author`s correlation: Mag = 4.2 - 3L + (L/2)2

**Refers to mean value weighted on square of errors.

 

 

 

LUNISSOLAR

 

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