OAC - Astronomical Observatory of Capannori

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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
CMOS camera	ZWO	ASI 174 mino mono	1936x1216 pixels each 5.86 microns wide mono CMOS camera
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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