An atmospheric radiation model for Cerro Paranal - I. The optical spectral range

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Table 5

Typical sky model and literature night-sky brightnesses in mag arcsec^-2 for zenith, no Moon, faint zodiacal light, and different solar radio fluxes.

Source	Site	S_10.7 cm^a	U	B	V	R	I

Benn & Ellison (1998)	La Palma	80	22.0	22.7	21.9	21.0	20.0
Walker (1987)	Cerro Tololo	90	22.0	22.7	21.8	20.9	19.9
Krisciunas et al. (2007)	Cerro Tololo	130	22.1	22.8	21.8	21.2	19.9
Mattila et al. (1996)	La Silla	150		22.8	21.7	20.8	19.5
Patat (2008)	Cerro Paranal	160	22.4	22.7	21.7	20.9	19.7
Patat (2003)	Cerro Paranal	180	22.3	22.6	21.6	20.9	19.7

Sky model^b	Cerro Paranal	90	22.3	22.9	22.0	21.2	19.8
		130	22.1	22.8	21.8	21.0	19.7
		180	21.9	22.6	21.6	20.9	19.6

Notes.

^(a)

Solar radio flux measured at 10.7 cm in sfu.

^(b)

See Table 1 for model parameters.

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