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Astronomical Accessories

Astronomical Accessories. To illuminate. Cartes du Ciel. Cloudy Nights – Andrew Johnson. The ways of collimation. Finders. Power in the field. Light Pollution Filters. Color filters. Fringing Filters. Absorb much of blue or violet fringing seen in achromatic refractors.

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Astronomical Accessories

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  1. Astronomical Accessories

  2. To illuminate

  3. Cartes du Ciel

  4. Cloudy Nights – Andrew Johnson

  5. The ways of collimation

  6. Finders

  7. Power in the field

  8. Light Pollution Filters

  9. Color filters

  10. Fringing Filters • Absorb much of blue or violet fringing seen in achromatic refractors. • Best used on small, well-corrected refractors

  11. Konigs – GRO & University

  12. Avoidable oculars • 2” Kellners in short f. ratios • Zooms

  13. Barlow lenses

  14. Optical Clean-up

  15. Stay Away

  16. Star Charts (Free or shareware) • SkyGlobe (download from search engine) • Cartes du Ciel (download from search engine) • Cloudy Nights – Andrew Johnson http://www.cloudynights.com/item.php?item_id=1052

  17. Equipment Vendors • Anacortes Telescope – www.buytelescopes.com • Astromart classified – www.astromart.com • Gary Russell Optics - http://www.citlink.net/~optics/products.html • Hands on Optics – www.handsonoptics.com • Oceanside Photo & Telescope - www.optcorp.com • Orion Telescope – www.telescope.com • Sirius Optics - http://www.siriusoptics.com/

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