Descripción y tipos de filtros (posible Post-It)

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Celestron tiene un juego de filtros y he encontrado esto respecto a la utilidad de cada uno de ellos.

Kodak Wratten #12 Deep Yellow 74% Transmission: Moon- Enhance lunar features. Jupiter- Penetrate and darken atmospheric currents containing low-hue blue tones. Enhance orange and red features of the belts and zones. Useful for studies of the polar regions. Mars- Reduce light from the blue and green areas which darken the maria, oases and canal markings, while lightening the orange-hued desert regions. Also sharpen the boundaries of yellow dust clouds. Neptune- Improve detail in larger telescopes (11" and larger apertures). Saturn- Penetrate and darken atmospheric currents containing low-hue blue tones. Enhance orange and red features of the belts and zones. Uranus- Improve detail in larger telescopes (11" and larger apertures). Venus- Reveal low-contrast surface features. Comets- Enhance definition in comet tails.


Kodak Wratten #21 Orange 46% Transmission: Moon- Greatly enhances lunar features. Jupiter- Improves appearance and detail revealed in structure of Jovian belts. Enhances viewing of festoons and polar regions. Mars- Reduces light from the blue and green areas which darken the maria, oases and canal markings, while lightening the orange-hued desert regions. Also sharpens the boundaries of yellow dust clouds. Mercury- Reduces the brightness of blue sky during daylight observing, to reveal surface features. Saturn- Improves structure of the Saturnian bands and highlights blue polar regions. Venus- Use during daylight observing to reduce brightness of blue sky. Comets- Enhances definition of comet dust tails and heads in larger telescopes (11" and greater aperture). Solar- When using a Celestron Solar Filter, adding this orange filter will give true color rendition.


Kodak Wratten #25 Red 14% Transmission: Moon- Improves lunar features. Jupiter- Useful for studying bluer clouds. Mars- Ideal for observation of the polar ice caps and features on the Martian surface. Sharpens the boundaries of yellow dust clouds. Mercury- Improves observation at twilight, when the planet is near the horizon. During daylight, it reduces the brightness of the blue sky to enhance surface features. Saturn- Useful for studying bluer clouds. Venus- Use during daylight observing to reduce brightness of blue sky. Occasionally deformations of the terminator are visible.


Kodak Wratten #56 Light Green 53% Transmission: Moon- Enhances lunar features. Jupiter- Increases visibility of the Great Red Spot. Useful for observing the tow-contrast hues of blue and red that exist in the Jovian atmosphere. Mars- Excellent for increased contrast of Martian polar caps, low clouds and yellowish dust storms. Venus- Useful for Venusian cloud pattern studies. Reduces brightness of blue sky during daylight observing.


Kodak Wratten #58A Green 24% Transmission: Saturn– Enhances white features in the Saturnian atmosphere. Comets– Useful for observing brighter comets. Moon- Enhances lunar features. Jupiter- Increases visibility of the Great Red Spot. Useful for observing the low-contrast hues of blue and red that exist in the Jovian atmosphere. Mars-Excellent for increased contrast of Martian polar caps, low clouds and yellowish dust storms. Venus- Useful for Venusian cloud pattern studies. Reduces brightness of blue sky during daylight observing.


Kodak Wratten #80A Light Blue 30% Transmission: Moon- Enhance lunar detail. Jupiter- Enhance the boundaries between the reddish belts and adjacent bright zones. Useful for viewing the Great Red Spot. Mars- Very useful during the violet clearing. Helpful in studying surface features and polar caps. Mercury- Improve observation of dusky surface markings at twilight, when the planet is near the horizon. Saturn- Enhance low-contrast features between the belts and zones. Venus- Useful for increased contrast of dark shadings in upper Venusian clouds. Comets- Bring out the best definition in comet gas tails.


Saludos,