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Opto-Electronic Instrumentation


Comune di Capannori

Opto-Electronic and Auxiliary Instrumentation

 


OAC's Optec SSP-4 infrared photometer

 

A telescope is simply a light collector; for a scientific usage some auxiliary equipment needs to be coupled to it, for example photometers, spectrographs, CCD cameras, and so on.

At OAC we have various opto-electronic devices that can be coupled to our telescopes.

The following table lists the available opto-electronic and auxiliary instrumentation owned by the municipality of Capannori:

Device
Firm
Model
More details
Optical photoelectric photometer
Optec
SSP-5A
  • Photomultiplier Hamamatsu R6358, low noise, multialkaline, red extended
  • UBVR (Johnson system) filters set
  • uvby-beta (Stromgren-Crawford system) filters set
  • g'r'i' (Sloan DSS system) filters set
Infrared photoelectric photometer
Optec
SSP-4
  • Hamamatsu G5851-21 InGaAs-PIN photodiode
  • JH filters set
Nebular-stellar CCD spectrograph
SBIG
DSS-7

300 grooves/mm grating
CCD camera
SBIG
ST-9XE
512 x 512 pixels, each 20 microns wide (usually coupled to AO-8 adaptive optics and CFW-9 filter wheel)
Filters wheel
SBIG
CFW-9
hosts five filters with Ø25 mm
in a Ø31,75 mm frame
Photometric filters
Custom
Scientific
UBVRI
UBVRI filters with Ø25 mm in a Ø31,75 mm frame
Adaptive Optics
SBIG
AO-8
an optical movable element is placed in the optical path, without acting on the main telescope mirror
CCD camera
Meade
DSI Pro
510 x 492 pixels, each 9.6 x 7.5 microns
Lunar Planetary Imager
Meade
LPI
640 x 480 pixels, color CMOS chip

 

 

The following table lists the available opto-electronic and auxiliary instrumentation owned by IRF:

Device
Firm
Model
More details
Optical photoelectric photometer
Optec
SSP-5A
  • Photomultiplier Hamamatsu R6358, low noise, multialkaline, red extended
  • UBVR (Johnson/Cousins system) filters set with two different R filters: R Cousins and R Johnson
  • uvby (Stromgren system) filters set
  • g'r'i' (Sloan DSS system) filters set
Stellar Self-guiding spectrograph
SBIG
SGS

Czerny-Turner style spectrograph
150 grooves/mm grating and
600 grooves/mm grating;
18 µm and 72 µm wide slits
CCD camera
SBIG
ST-7XME
765 x 510 pixels, each 9 microns wide (usually coupled to SGS spectrograph)
Filter wheel
SBIG
CFW-10
10 positions filter wheel for Ø31,75 mm filters
Photometric filters
Astrodon
UBVRI
Johnson/Cousins UBVRI with Ø25 mm in a Ø31,75 mm frame
Photometric filters
Astrodon
u'g'r'i'z'
 SLOAN u'g'r'i'z' filters with Ø25 mm in a Ø31,75 mm frame
CCD camera
SBIG
ST-8 XME
class 1
1530 x 1020 pixels, each 9 microns wide (usually coupled to filter wheel and UBVRI & u'g'r'i'z' photometric filters)
Flat field diffuser
(custom made)
~ 70 cm diameter
A circular piece of opaline plexiglass can be put in front of the telescope, acting as a flat field diffuser at twilight.
Hartmann mask
(custom made)
~ 70 cm diameter
A circular piece of black plexiglass with 3 holes can be put in front of the telescope, acting as an Hartmann mask in order to focus the telescope or to help in alignment of the optics.

 


OAC's DSS-7 spectrometer and IRF's CCD camera ST-7XME
attached to the focus of the 0.30-m f/10 telescope

 

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