Michael Richer
La siguiente
tabla presenta mediciones del brillo del cielo para filtros anchos en el óptico
e infrarrojo cercano. Más detalles
sobre las mediciones en el infrarrojo se
encuentran en una página dedicada a ellas. Generalmente, las nuevas mediciones resultan en brillos del
cielo notablemente más oscuros que los anteriores. Detalles de los filtros pueden encontrarse en las páginas dedicados a ellos. Los parámetros de los filtros
infrarrojos vienen del manual
de usuario de Camila.
The following table presents recent sky brightness measurements for broad-band filters in the optical and near infrared. Additional details concerning the infrared measurements may be found on the page dedicated to this topic. In general, the new measurements find notably darker sky brightnesses than the older measurements. The filter details may be found in the pages dedicated to the filters. The parameters for the infrared filters are from the Camila manual.
|
Date |
Moon phase |
Sky |
Filter |
airmass |
Mag |
Comment |
|
|
(days) |
|
|
|
(mag/"/") |
|
|
Optical |
|
|
|
|
|
|
|
26 Aug 2004 |
10 |
bright |
U2 |
1.24 |
19.7 |
|
|
|
|
|
B2 |
1.28 |
20.1 |
|
|
|
|
|
V2 |
1.33 |
20.0 |
|
|
|
|
|
R2 |
1.21 |
20.0 |
|
|
|
|
|
I2 |
1.23 |
18.7 |
|
|
29 April 2005 |
20 |
dark |
U3 |
1.00 |
21.3 |
photometric? |
|
|
|
|
B3 |
1.00 |
22.3 |
|
|
|
|
|
V3 |
1.01 |
21.4 |
|
|
|
|
|
R3 |
1.00 |
20.9 |
|
|
|
|
|
I3 |
1.02 |
19.4 |
|
|
22 Aug 2005 |
16.5 |
bright |
U2 |
1.09 |
18.9 |
|
|
|
|
|
B2 |
1.12 |
19.5 |
|
|
|
|
|
V2 |
1.15 |
19.4 |
|
|
|
|
|
R2 |
1.18 |
19.3 |
|
|
|
|
|
I2 |
1.21 |
18.2 |
|
|
23 Aug 2005 |
17.5 |
dark |
V2 |
1.06 |
20.6 |
Moon rose during exposure |
|
|
|
|
R2 |
1.06 |
20.5 |
|
|
|
|
|
I2 |
1.07 |
19.4 |
|
|
30 Aug 2005 |
24.5 |
dark |
U3 |
1.06 |
21.7 |
|
|
|
|
|
B3 |
1.05 |
22.4 |
|
|
|
|
|
V3 |
1.06 |
21.6 |
|
|
|
|
|
R3 |
1.07 |
20.7 |
|
|
|
|
|
I3 |
1.06 |
18.9 |
|
|
22 Feb 2006 |
23.7 |
dark |
U3 |
1.11 |
22.1 |
|
|
|
|
|
B3 |
1.14 |
22.4 |
|
|
|
|
|
V3 |
1.18 |
21.6 |
|
|
|
|
|
R3 |
1.23 |
20.7 |
|
|
|
|
|
I3 |
1.28 |
19.2 |
|
|
Infrared |
|
|
|
|
|
|
|
March-April 2005 |
|
|
K' |
1.00 |
14.4-15.1 |
eight measurements |
|
21-25 April 2005 |
|
|
J |
1.00 |
16.0-16.9 |
two measurements |
|
25 April 2005 |
|
|
H |
1.00 |
14.1 |
|
|
17-19 May 2006 |
|
|
K' |
1.00 |
13.6-14.0 |
three measurements |
La tabla que
sigue presenta los brillos del cielo medido en tiempo oscuro y brillante en el
OAN-SPM a lo largo de varios años. La proveniencia de estos datos me es
ahora entre incierta y desconocida. Detalles de los filtros pueden
encontrarse en las páginas
dedicados a ellos. Los
parámetros de los filtros infrarrojos vienen del manual de usuario de
Camila.
The following table presents the sky brightness measured in dark and bright time at the OAN-SPM over the past several years. The origin of these data is now between uncertain and unknown. The filter details may be found in the pages dedicated to the filters. The parameters for the infrared filters are from the Camila manual.
|
filtro |
CWL, FWHM (Å) |
tiempo
brillante |
tiempo oscuro |
|
U |
3582, 500 |
17.8 |
20.8 |
|
U2 |
3660, 680 |
17.8 |
20.8 |
|
B/B2 |
4300, 1000 |
18.3 |
21.8 |
|
V/V2 |
5400, 900 |
18.3 |
21.0 |
|
R/R2 |
6400, 1300 |
18.2 |
20.4 |
|
I/I2 |
8900, 3400 |
17.8 |
18.7 |
|
u |
3487, 280 |
17.8 |
20.8 |
|
v |
4126, 130 |
18.3 |
21.8 |
|
b |
4707, 188 |
18.3 |
21.6 |
|
y |
5478, 217 |
18.3 |
21.0 |
|
J |
1.2 microns, |
15.5 |
|
|
H |
1.6 microns |
14.3 |
|
|
K' |
2.125 microns |
12.4 |
|