HPO
Astronomy
Hopkins
Phoenix
Observatory
Photoelectric Photometry
HPO Photoelectric Equipment
HPO uses single channel photomultiplier tube (1P21) with a photon counting system to do UBV (Ultraviolet, Blue, Visual) photometry
Celestron C-8
Schmidt-Cassegrain
With HPO Photometry Equipment
Close
up of Photometer Head
Illuminated
12.5mm
crosshair eyepiece
White box with batteries
and brightness adjustment for eyepiece,
Top
of black box is
flip mirror knob.
Lower is filter selection
UBV and D (Dark)
Photometry Electronics, 10 MHz Pulse Counter and -1000VDC Power Supply
Clock Drives - MST and UT Digital Clocks
Close
up of HPO PEP-101
Photometer Head
C-8 with Photometer Head
Present Page Version as of 8 March 2005
