Posts filed under: Dobsonian Mounted Newtonians

Diameter: 6in | 152mm
Focal Length: 760
F-ratio: 5
Focal Length: 760
Type: Newtonian
Donor:
Manufacturer: JMI
First Light: 2018

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Diameter: 18in | 457mm
Focal Length: 1900
F-ratio: 4.2
Focal Length: 1900
Type: Newtonian
Donor: Shasta Astronomy
Manufacturer: Obsession
First Light: 2017

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Diameter: 18in | 457mm
Focal Length: 2058
F-ratio: 4.5
Focal Length: 2058
Type: Newtonian
Donor: Dennis Martin
Manufacturer: JMI
First Light: 2000

This Starport standard was given to us by Dennis Martin when, at the Oregon Star Party, he decided he needed to go big, or go home!  Dennis felt he needed a 20″ Starmaster (see above)….  This 18″ NGT, f4.5 Newtonian, with a Pegasus mirror, and Feather Touch fine focuser is a late night staff favorite.  It’s wide, sharp image provides outstanding view of all those faint fuzzies, like nebulae and galaxies, that only come to focus in a large scope.  It’s usually one of the last scopes to be put away for the night.

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Diameter: 8in | 203mm
Focal Length: 1200
F-ratio: 5.9
Focal Length: 1200
Type: Newtonian
Donor: Yocum Family
Manufacturer: Celestron
First Light: 2000

Celestron Starhopper 8″- A oldie, but a goodie. Don’t tell anyone but I think we now have two of these.

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Diameter: 8in | 203mm
Focal Length: 1200
F-ratio: 5.9
Focal Length: 1200
Type: Newtonian
Donor: Yocum Family
Manufacturer: Orion
First Light: 2000

Orion 8″ Intelliscope, one of our most popular scopes used outside.

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Diameter: 10in | 254mm
Focal Length: 1200
F-ratio: 4.7
Focal Length: 1200
Type: Newtonian
Donor: Yocum Family
Manufacturer: Orion
First Light: 2000

Orion 10″ Intelliscope with dual speed focus

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Diameter: 10in | 254mm
Focal Length: 1200
F-ratio: 4.7
Focal Length: 1200
Type: Newtonian
Donor: Lehner Family
Manufacturer: Orion
First Light: 2005

Orion 10″ donated in memory of Adrian Erich Lehner. Adrian was a great guy who really enjoyed astronomy. He was active at the Mt Bachelor Star Party for many years, and we miss him very much. However, his scope is used almost every night we are open; I am sure he would of love that.

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Diameter: 14in | 356mm
Focal Length: 1650
F-ratio: 4.6
Focal Length: 1650
Type: Newtonian
Donor:
Manufacturer: Orion
First Light: 2016

Yes, this telescope has no name attached to it, and is a demo here. But the staff would love for this to be a permanent home. So if you are interested, we would love to see a donation for this wonderful addition to the dob farm.

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Diameter: 12.5in | 318mm
Focal Length: 1588
F-ratio: 5
Focal Length: 1588
Type: Newtonian
Donor: Harold Osborne
Manufacturer: Parks
First Light: 1990

There is quite the story behind this telescope that was the first to be housed in our dome.  Next time you visit, ask a staff member!  The 12.5″ Parks mirror, in it’s rotating ring tube, rides on a Byers 812 mount. The 2825mm focal length in a Newtonian design, means a very long tube, and when that was in the dome, the eyepiece was nearly 12′ in the air!  It’s new home in the Starport makes it a much less intimidating climb to view out of this gem. This wonderful donation for Harold Osborne is our longest running telescope, and has been in continuous use since 1991! The Byers 812 mount was just overhauled in 2017 by our good friend Larry Myers, of Mountain Instruments fame….. 

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