About

The Heller Observatory is a privately-owned semi-permanent observatory located in Seattle, Washington USA.

Our primary imaging telescope is an Astro-Tech 10″ Ritchey-Chrétien on a Celestron CGE German Equitorial Mount.  The CGE mount head was Hypertuned in 2011 by Deep Space Products, providing a significant increase in tracking accuracy.

Our current focus is astrophotography from downtown Seattle using narrowband filters and a scientific-grade CCD imaging camera from Quantum Scientific Imaging.

Here’s an image of the AT10RC on the CGE mount with QSI camera attached:

And here’s a closeup view of the QSI 583wsg camera with Lodestar, feather-touch focuser and mirotouch focuser automation:

 

Equipment Used

OpticsAstro-Tech 10″ Ritchey-Chrétien at f/8
MountCelestron CGE German Equitorial Mount, Hypertuned by Deep Space Products
Wide Field CameraQSI 583wsg scientific cooled CCD camera with Kodak KAF-8300 sensor (with peak quantum efficiency over 50%)
Planetary CameraImaging Source DMK21AU04.AS
Wide Field ProcessingAcquisition and stacking in MaximDL
Final work in Photoshop CS4
Using Astrodon 5nm HA, 5nm SII and 3nm OIII 1.25" filters for narrowband
Astrodon Tru-Balance LRGB 1.25" filter set for full color
Planetary ProcessingAcquisition with IC Capture
Stacking with Registax
LR Deconvolution with AstraImage
RRGB combine using WinJupos
Final work in Photoshop CS4
Using Astronomic Type IIc 1.25" RGB filters in an Orion filter wheel
FiltersAstronomik type IIc LRGB filter set
Astrodon 5nm HA, 5nm SII and 3nm OIII 1.25" filters
Astrodon Tru-Balance LRGB 1.25" filter set
Barlows and Focal ReducersAstro-Physics CCDT67 Focal Reducer
Tele Vue 2.5x Powermate Barlow