Celestron ExploraScope 80 Manual de instrucciones descargar pdf (Pagina 34)

Appendix A – EYEPIECE FILTER INFO

In the following descriptions you will learn what you can expect from Celestron’s eye-

piece filters in different viewing situations.

YELLOW

#12 Deep Yellow 74% T • #15 Deep Yellow 67% T ››› 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.

#8 Yellow 83% T ››› Same characteristics as the #12 and #15 Deep Yellow filters, with the exception of the following:

Mars – Improves the Martian maria by reducing scattered light from blue areas, while allowing passage of more green light for

studying yellow dust clouds.

Comets – Brings out highlights in yellowish dust tails and enhances appearance of comet heads.

ORANGE

#21 Orange 46% T ››› 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 some Mylar Solar Filters, adding this orange filter will give a truer

color rendition.

RED

#25 Red 14% T ››› Moon – Improves lunar features. Jupiter – Useful for studying bluer clouds. Mars – Ideal for observa-

tion 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.

#23A Light Red 25% T ››› Same characteristics as the #25 filter, with the exception of the following: Mars – Reduces light

from blue and green areas which darkens the maria, oases and canal markings, while lightening the orange-hued desert

regions. Sharpens the boundaries of yellow dust clouds.

Comets – Improves definition of comet dust tails.

BLUE

#80A Light Blue 30% T • #82A Pale Blue 73% T • #38A Blue 17% T ››› 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.

GREEN

#56 Light Green 53% T ››› 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.

#58 Green 24% T ››› Same characteristics as the #56 Green filter, with the exception of the following: Saturn – Enhances

white features in the Saturnian atmosphere.

Comets – Useful for observing brighter comets.

VIOLET

#47 Violet 3% T ››› Mars – Useful for detecting high clouds and haze over the Martian polar caps. Very useful during the

violet clearing.

Mercury – Helpful in detecting faint features. Saturn – Good for ring structure studies. Venus – Increases

contrast of dark shading in upper Venusian clouds.

Comets – Useful for observing brighter comets.

96ND (NEUTRAL DENSITY)

#96ND 50% T – Density 0.3 • #96ND 25% T – Density 0.6 • #96ND 13% T – Density 0.9 ››› Moon – Excellent for

reducing irradiation, glare and subject brightness. Colors are unaltered, as light is transmitted uniformly over the entire spec-

trum. Each model performs somewhat differently, depending on the brightness of the moon.

Planets – Stacking in combina-

tion with color filters lowers transmission, but retains true color balance for specific applications. Reduces glare on brighter

planets and minimizes irradiation.

Binary (Double) Stars – Helpful in splitting binary stars, because it reduces glare and dif-

fraction effects around the brighter star of the binary pair.

POLARIZING ››› Reduces reflected polarized light in the earth’s atmosphere.

MOON & PLANETS ››› Invaluable in reducing irradiation and glare. Binary Stars – Helpful in splitting binary stars,

because it reduces glare and diffraction effects around the brighter star of the binary pair.

1 2 ... 29 30 31 32 33 34 35 36

Comentarios a estos manuales

Sin comentarios

Celestron ExploraScope 80 Manual de instrucciones Pagina 34

Comentarios a estos manuales

Relacionado con productos y manuales para Telescopios Celestron ExploraScope 80