Astronomical Accessories
description
Transcript of Astronomical Accessories
Astronomical AccessoriesAstronomical Accessories
To illuminateTo illuminate
Cartes du CielCartes du Ciel
Cloudy Nights – Andrew JohnsonCloudy Nights – Andrew Johnson
The ways of collimationThe ways of collimation
FindersFinders
Power in the fieldPower in the field
Light Pollution FiltersLight Pollution Filters
Color filtersColor filters
Fringing FiltersFringing Filters
Absorb much of blue or Absorb much of blue or violet fringing seen in violet fringing seen in achromatic refractors.achromatic refractors.
Best used on small, well-Best used on small, well-corrected refractorscorrected refractors
Konigs – GRO & UniversityKonigs – GRO & University
Avoidable ocularsAvoidable oculars
2” Kellners in short f. 2” Kellners in short f. ratiosratios
ZoomsZooms
Barlow lensesBarlow lenses
Optical Clean-upOptical Clean-up
Stay AwayStay Away
Star Charts (Free or shareware)Star Charts (Free or shareware) SkyGlobe (download from search engine)SkyGlobe (download from search engine) Cartes du Ciel (download from search engine)Cartes du Ciel (download from search engine) Cloudy Nights – Andrew Johnson Cloudy Nights – Andrew Johnson
http://www.cloudynights.com/item.php?item_id=1052http://www.cloudynights.com/item.php?item_id=1052
Equipment VendorsEquipment Vendors Anacortes Telescope – Anacortes Telescope – www.buytelescopes.comwww.buytelescopes.com Astromart classified – Astromart classified – www.astromart.comwww.astromart.com Gary Russell Optics - Gary Russell Optics - hh
ttp://www.citlink.net/~optics/products.htmlttp://www.citlink.net/~optics/products.html Hands on Optics – Hands on Optics – www.handsonoptics.comwww.handsonoptics.com Oceanside Photo & Telescope - Oceanside Photo & Telescope - www.optcorp.comwww.optcorp.com Orion Telescope – Orion Telescope – www.telescope.comwww.telescope.com Sirius Optics - Sirius Optics - http://www.siriusoptics.com/http://www.siriusoptics.com/