The UBVRIJKLMN bands Johnson system. (Johnson H.L. Ann. Rev. A&A. 1966, Vol.4, 193-206.) Band eff. wavelength, micron FWHM, micron U 0.36 0.04 B 0.44 0.10 V 0.55 0.08 R 0.70 0.21 I 0.90 0.22 J 1.25 0.30 K 2.2 0.6 ---------------------------------------------------------------------------------------------------------------------------- The V,Rc,Ic bands Cousins system (Cousins A. W., Mem. R. Astron. Soc., Vol. 81, p. 25-36, 1976). Band eff. wavelength, micron FWHM, micron V 0.55 0.08 Cousins/Johnson Rc 0.67 - Cousins (origin, mean wavelength) Ic 0.81 - Cousins (origin, mean wavelength) ---------------------------------------------------------------------------------------------------------------------------- The U,B,V,Rc,Ic bands Johnson-Cousins system. (Bessell M.S. PASP. 1979. 91, 543–589.) Band eff. wavelength, micron FWHM, micron U 0.36 0.065 B 0.44 0.089 V 0.55 0.084 Rc 0.64 0.158 Ic 0.79 0.154 K 2.2 ---------------------------------------------------------------------------------------------------------------------------- The Thuan-Gunn uvgr photometric system (Thuan T. X. and Gunn J. E., PASP, vol. 88, p. 543, 1976) Band eff. wavelength, micron FWHM, micron uvgr system u 0.353 0.04 v 0.398 0.04 g 0.493 0.07 r 0.655 0.09 UBVR system U 0.362 0.065 B 0.442 0.100 V 0.540 0.080 R 0.680 0.095 ---------------------------------------------------------------------------------------------------------------------------- Eaton N., Scarrott S.M., Warren-Smith R.F., 1988, Icarus, Vol. 76, 270-278 (and references in there) Band eff. wavelength, micron FWHM, micron B 0.46 0.074 V 0.56 0.09 R 0.67 0.17 I 0.78 0.13 ---------------------------------------------------------------------------------------------------------------------------- Characteristics of narrowband comet filters Species* Bandpass** (micron) IHW Sets (1) HB Sets (2) ESA Sets (2) OH (0–0) 0.3085/0.006 0.3090/0.0062 0.3085/0.0075 UV Continuum 0.3650/0.008 0.3448/0.0084 — CN (delta nu = 0) 0.3871/0.0050 0.3870/0.0062 0.3870/0.0050 C3 (Swings System) 0.4060/0.0070 0.4062/0.0062 0.4060/0.0070 CO+ (2–0) 0.4260/0.0065 0.4266/0.0064 — Blue Continuum 0.4845/0.0060 0.4450/0.0067 0.4430/0.0040 C2 (delta nu = 0) 0.5140/0.0090 0.5141/0.0118 0.5125/0.0125 Green Continuum 0.5260/0.0056 — NH2 (0,2,0) — 0.6630/0.0060 H2O+ (0,6,0) 0.7025/0.0225 0.7020/0.0170 — Red Continuum 0.6840/0.0090 0.7128/0.0058 0.6840/0.0090 * Emission band designations in parentheses. ** Nominal center wavelength and full-width half-maximum (FWHM). (1) Osborn W., A’Hearn M., Carsenty U.1990, Icarus, 88, 228-245. (2) Schleicher D., Farnham T. in Comets II, M. C. Festou, H. U. Keller, and H. A. Weaver (eds.), University of Arizona Press, Tucson, 1990, 449-469.