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Spectroscopy is a demanding but unlimited field of astronomy where even amateurs can contribute valuable scientific data.The point-like light from stars is separated by the spectrograph into a broad band, in which each wavelength occupies a certain area. The resulting spectrum can be easily viewed in the eyepiece or imaged by a camera sensor. The latter then allows accurate analysis of the spectrum.

Photometry is used to measure brightness. The Sky Quality Meters from Unihedron, which can be used to systematically measure the night sky’s brightness, are useful in astronomy.

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Shelyak Spectroscope eShel complete system
Shelyak
Spectroscope eShel complete system
$ 23,200.00
ready for shipping in 1-2 weeks
Shelyak Spectroscope eShel lense version
Shelyak
Spectroscope eShel lense version
$ 11,600.00
ready for shipping in 1-2 weeks
Paton Hawksley Spectroscope Star Analyser 100
Paton Hawksley
Spectroscope Star Analyser 100
$ 204.00
ready for shipping in 24 h
Starlight Xpress Spectroscope SX with Lodestar X2 Autoguider
Starlight Xpress
Spectroscope SX with Lodestar X2 Autoguider
RRP:  $ 6,100.00
Our price:
$ 5,500.00
ready for shipping in 1-2 weeks
Paton Hawksley Hand spectroscope
Paton Hawksley
Hand spectroscope
$ 119.00
ready for shipping in 24 h
Shelyak UVEX Spectroscope
Shelyak
UVEX Spectroscope
$ 5,900.00
ready for shipping in 1-2 weeks
Shelyak Spectroscope Lhires III
Shelyak
Spectroscope Lhires III
$ 5,600.00
ready for shipping in 1-2 weeks
Shelyak Spectroscope LISA Visible
Shelyak
Spectroscope LISA Visible
$ 5,200.00
ready for shipping in 1-2 weeks
Shelyak Spectroscope LISA near IR
Shelyak
Spectroscope LISA near IR
$ 4,900.00
ready for shipping in 1-2 weeks
Shelyak Spectroscope Alpy 600
Shelyak
Spectroscope Alpy 600
$ 1,010.00
ready for shipping in 1-2 weeks
Shelyak Spectroscope Star Analyser SA100
Shelyak
Spectroscope Star Analyser SA100
$ 217.00
ready for shipping in 1-2 weeks
Paton Hawksley Spectroscope Star Analyser 200
Paton Hawksley
Spectroscope Star Analyser 200
$ 234.00
ready for shipping in 6-10 weeks
Shelyak eShel Calibration unit
Shelyak
eShel Calibration unit
$ 5,900.00
ready for shipping in 1-2 weeks
Unihedron Photometer Sky Quality meter with lens (Version L)
Unihedron
Photometer Sky Quality meter with lens (Version L)
$ 271.00
ready for shipping in 24 h
Shelyak eShel injection unit f/9 50µm
Shelyak
eShel injection unit f/9 50µm
$ 4,600.00
ready for shipping in 1-2 weeks
Shelyak eShel injection unit f/6 50µm
Shelyak
eShel injection unit f/6 50µm
$ 3,700.00
ready for shipping in 1-2 weeks
Shelyak Alpy & UVEX guiding module
Shelyak
Alpy & UVEX guiding module
$ 1,160.00
ready for shipping in 1-2 weeks
Shelyak Alpy & UVEX calibration module
Shelyak
Alpy & UVEX calibration module
$ 960.00
ready for shipping in 1-2 weeks
Unihedron Photometer Sky Quality meter, Ethernet, with lens (version LE)
Unihedron
Photometer Sky Quality meter, Ethernet, with lens (version LE)
RRP:  $ 530.00
Our price:
$ 369.00
ready for shipping in 24 h
Unihedron Photometer Solar DL Kit
Unihedron
Photometer Solar DL Kit
RRP:  $ 770.00
Our price:
$ 540.00
ready for shipping in 3-5 weeks
Unihedron Photometer SQM sky quality meter with lens and USB connector
Unihedron
Photometer SQM sky quality meter with lens and USB connector
RRP:  $ 402.00
Our price:
$ 281.00
ready for shipping in 24 h
Shelyak Optical Kit Sol'Ex Spectroheliograph
Shelyak
Optical Kit Sol'Ex Spectroheliograph
$ 540.00
ready for shipping in 24 h
Unihedron Photometer Sky Quality Meter
Unihedron
Photometer Sky Quality Meter
RRP:  $ 250.00
Our price:
$ 178.00
ready for shipping in 24 h
Unihedron Waterproof housing for Sky Quality meter
Unihedron
Waterproof housing for Sky Quality meter
RRP:  $ 108.00
Our price:
$ 77.00
ready for shipping in 24 h
Shelyak Thorium-Argon-Bulb
Shelyak
Thorium-Argon-Bulb
$ 1,090.00
ready for shipping in 1-2 weeks
Shelyak Reflective Standard SLIT 15/19/23/35 LISA & LHIRES III
Shelyak
Reflective Standard SLIT 15/19/23/35 LISA & LHIRES III
$ 233.00
ready for shipping in 24 h
Shelyak LISA near-IR kit
Shelyak
LISA near-IR kit
$ 900.00
ready for shipping in 1-2 weeks
Unihedron Sky Quality Meter  Window mount
Unihedron
Sky Quality Meter Window mount
$ 55.00
ready for shipping in 3-5 weeks
Shelyak Diffraction grating for Lhires III, 2400 lines/mm
Shelyak
Diffraction grating for Lhires III, 2400 lines/mm
$ 780.00
ready for shipping in 1-2 weeks
Shelyak 1200 gr/mm grating module
Shelyak
1200 gr/mm grating module
$ 770.00
ready for shipping in 1-2 weeks
Shelyak 300 gr/mm grating module
Shelyak
300 gr/mm grating module
$ 770.00
ready for shipping in 1-2 weeks
Shelyak 1800 gr/mm grating module
Shelyak
1800 gr/mm grating module
$ 770.00
ready for shipping in 1-2 weeks
Shelyak 600 gr/mm grating module
Shelyak
600 gr/mm grating module
$ 770.00
ready for shipping in 1-2 weeks
Unihedron SQM tripod adaptor option
Unihedron
SQM tripod adaptor option
$ 43.90
ready for shipping in 3-5 weeks
Shelyak SPOX module Alpy/LISA 0.8m
Shelyak
SPOX module Alpy/LISA 0.8m
$ 500.00
ready for shipping in 1-2 weeks
Shelyak SPOX module Alpy/LISA 5m
Shelyak
SPOX module Alpy/LISA 5m
$ 500.00
ready for shipping in 1-2 weeks