{"product_id":"shelyak-alpy-200-spectroscope-pf-pf0083","title":"Shelyak Alpy 200 Spectroscope (PF0083)","description":"\u003cdiv class=\"et_pb_module et_pb_wc_description et_pb_wc_description_0 et_pb_bg_layout_light  et_pb_text_align_left\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"et_pb_module_inner\" data-mce-fragment=\"1\"\u003e\n\u003ch1 data-mce-fragment=\"1\"\u003eShelyak Alpy 200 Spectroscope\u003c\/h1\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe little brother of the ALPY 600 for spectra of very faint objects with a resolution of around R=130 !\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"et_pb_module et_pb_text et_pb_text_0 liste-onglets-produits  et_pb_text_align_left et_pb_bg_layout_light\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"et_pb_text_inner\" data-mce-fragment=\"1\"\u003e\n\u003cdiv\u003eThe Alpy 200 and\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.shelyak.com\/software\/demetra\/?lang=en\"\u003eDemetra software\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e(specially developed for the Alpy 600) will enable you to produce spectra of the highest scientific quality.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe Alpy 200 opens the door to target astrophysics at the edge of the universe, enabling you to produce spectra of faint objects such as supernovae, quasars and other faint galaxies.\u003c\/div\u003e\n\u003cdiv\u003eThe Alpy 200 is a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecompact\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(just a few cm long),\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehigh-performance\u003c\/strong\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emodular\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eeasy-to-use\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eslit\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003espectroscope. It’s a true scientific instrument that will stay with you for a long time.\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg srcset=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyBase-245x300.png 245w, https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyBase-768x939.png 768w, https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyBase-837x1024.png 837w, https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyBase-1080x1321.png 1080w, https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyBase-510x624.png 510w, https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyBase.png 1380w\" sizes=\"(max-width: 245px) 100vw, 245px\" data-ll-status=\"loaded\" data-lazy-src=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyBase-245x300.png\" data-lazy-sizes=\"(max-width: 245px) 100vw, 245px\" data-lazy-srcset=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyBase-245x300.png 245w, https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyBase-768x939.png 768w, https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyBase-837x1024.png 837w, https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyBase-1080x1321.png 1080w, https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyBase-510x624.png 510w, https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyBase.png 1380w\" height=\"300\" width=\"245\" alt=\"\" src=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyBase-245x300.png\" class=\"size-medium wp-image-2435 aligncenter entered lazyloaded\" decoding=\"async\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eIts resolving power (R=130) enables it to cover the entire visible range and even a little more (typically from 375nm in the near UV to 750 nm in the near IR). The dispersing element is a grism, i.e. the combination of a prism and a diffraction grating (200gr\/mm).\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eslit\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eisolates a fringe from the light source. This brings several advantages: you isolate the object you wish to observe, you can work on extended objects (nebulae, planets), you can make calibration spectra… thanks to the slit, the quality of the spectrum obtained becomes independent of observation conditions (seeing, telescope tracking problems, etc.). The Alpy 200 is supplied with several interchangeable slots (see photo opposite), to cover a wide range of observation situations.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecompactness\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand lightness of the Alpy 200 make it compatible with small instruments (telescopes or refractors, from 80mm diameter), on modest mounts.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe Alpy 200’s optics have been specially designed to give the best\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eimage quality\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein the entire visible range, with a wide aperture (F\/4). You’ll be amazed at the amount of information that can be extracted from such a small spectroscope! This quality is such that many scientific publications are based on observations with the Alpy 200.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eAbove, spectrum obtained by Robin Leadbeater with the Alpy 200 and a C1 on supernovae 2023 vxt of magnitude 18.6 (10 exposures of 600s).\u003c\/div\u003e\n\u003cdiv\u003eThe Alpy 200 is robust, insensitive to temperature variations, and requires few adjustments. This makes it an\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eeasy-to-use\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003espectroscope, for fast, spectacular results. Operation is further simplified by the free Demetra software, which accompanies your observations from acquisition to data reduction.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg srcset=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyVisuel-300x200.jpg 300w, https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyVisuel-768x512.jpg 768w, https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyVisuel-510x340.jpg 510w, https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyVisuel.jpg 1000w\" sizes=\"(max-width: 159px) 100vw, 159px\" data-ll-status=\"loaded\" data-lazy-src=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyVisuel-300x200.jpg\" data-lazy-sizes=\"(max-width: 159px) 100vw, 159px\" data-lazy-srcset=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyVisuel-300x200.jpg 300w, https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyVisuel-768x512.jpg 768w, https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyVisuel-510x340.jpg 510w, https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyVisuel.jpg 1000w\" height=\"177\" width=\"266\" alt=\"\" src=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/AlpyVisuel-300x200.jpg\" class=\"alignright wp-image-2427 entered lazyloaded\" decoding=\"async\"\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe Alpy 200 is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emodular,\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emeaning it can be used in a variety of ways. With naked eye (daylight), with a digital camera (DSLR), with a CCD camera, on a table or behind a telescope, the possible configurations are numerous, and the interfaces are standard.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe Alpy 200 can be extended with two optional modules:\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.shelyak.com\/produit\/pf0036-module-de-guidage-alpy\/?lang=en\"\u003ethe autoguiding module\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.shelyak.com\/produit\/pf0037-module-detalonnage-alpy\/?lang=en\"\u003ecalibration module\u003c\/a\u003e. The function of the guiding module is to visualize the telescope field of view, and therefore to select and track the star you wish to observe. The calibration module allows you to make spectra of flats and a calibration lamp (Argon-Neon), for rapid wavelength calibration of your spectra.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eWith\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.shelyak.com\/software\/demetra\/?lang=en\"\u003eDemetra software,\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eyou can operate your Alpy 200, from spectra acquisition to data reduction.\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.shelyak.com\/software\/demetra\/?lang=en\" target=\"_blank\"\u003eDemetra\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eis available free of charge\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.shelyak.com\/software\/demetra\/?lang=en\" target=\"_blank\"\u003eHERE.\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eWe recommend the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.shelyak.com\/produit\/se0176-atik-414ex-mono\/?lang=en\"\u003eZWO ASI533MM-Pro camera\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003efor spectra acquisition with the Alpy 200, but any camera with a sensor longer than 14mm and a mechanical pull between 10 and 20mm will do.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch4 class=\"et_pb_toggle_title\"\u003eApplications\u003c\/h4\u003e\n\u003cdiv class=\"et_pb_toggle_content clearfix\"\u003e\n\u003cul\u003e\n\u003cli\u003eCalculating the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.shelyak.com\/how-to-measure-the-redshift-of-a-galaxy\/?lang=en\"\u003eredshift\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eof distant galaxies and quasars\u003c\/li\u003e\n\u003cli\u003eConfirmation of Planetary Nebula candidates\u003c\/li\u003e\n\u003cli\u003eFaint Be stars spectra\u003c\/li\u003e\n\u003cli\u003eSpectra of faint objects (Novae, Supernovae, Comets)\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eGalaxies (Seyfert…) (C. Buil):\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.spectro-aras.com\/forum\/viewtopic.php?f=8\u0026amp;t=555\u0026amp;p=1996#p1996\" target=\"_blank\"\u003ehttp:\/\/www.spectro-aras.com\/forum\/viewtopic.php?f=8\u0026amp;t=555\u0026amp;p=1996#p1996\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eSN2013ab in NGC 5669 (mag V = 14.9):\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.astrosurf.com\/buil\/supernovae\/2013\/obs.htm\" target=\"_blank\"\u003ehttp:\/\/www.astrosurf.com\/buil\/supernovae\/2013\/obs.htm\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eResolving power: R ~130 with 23µm slit\u003c\/li\u003e\n\u003cli\u003eAperture : F\/4\u003c\/li\u003e\n\u003cli\u003emulti-position slit: hole 25µm; slits 25µm, 50µm, 100µm, 300µm (tolerance 5µm); hole 3mm.\u003c\/li\u003e\n\u003cli\u003eslit length : 3mm.\u003c\/li\u003e\n\u003cli\u003elight : 200g\u003c\/li\u003e\n\u003cli\u003ecompact: 65mm long with a diameter of 45mm\u003c\/li\u003e\n\u003cli\u003e1,25″ telescope adapter or\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.shelyak.com\/description-lens-mount\/?lang=en\"\u003eT-mount\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ethread (M42x0.75mm) with a backfocus of 3,8mm (distance between rim of 1,25″ adapter and slit)\u003c\/li\u003e\n\u003cli\u003eScience camera:\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.shelyak.com\/description-lens-mount\/?lang=en\"\u003eT-mount\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ethread (M42x0.75mm), mechanical backfocus: 10.5-21mm range\u003c\/li\u003e\n\u003cli\u003eTotal backfocus with calibration module and autoguider: 64mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eThe Alpy 200 spectroscope\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMultiple interchangeable slits\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.shelyak.com\/software\/demetra\/?lang=en\" target=\"_blank\"\u003eDemetra software\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eAlpy\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/Diagramme_ALPY_VF.pdf\" target=\"_blank\"\u003eaccessory diagram\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eAlpy 200 spectroscope\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/DC0016B_Doc_Alpy_600_EN-1.pdf\" target=\"_blank\"\u003euser manual.\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eRaw spectra of the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/Images-Alpy-Sun-20130320.zip\"\u003eSun\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto repeat the examples in the manual\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/Images-Alpy-slit-20130218.zip\"\u003eStellar\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003espectra to follow the examples in the manual\u003c\/li\u003e\n\u003cli\u003eDiagram of total\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/Full_Alpy_backfocus.pdf\" target=\"_blank\"\u003ebackfocus\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ewith calibration module and autoguider.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.shelyak.com\/software\/demetra\/?lang=en\"\u003eDemetra\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003esoftware and sample images to familiarize you with spectra processing.\u003c\/li\u003e\n\u003cli\u003eDemetra software\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.shelyak-instruments.com\/Web\/Logiciel\/Demetra\/DC0029A%20Demetra%20documentation%20V1.0.pdf\"\u003edocumentation\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.youtube.com\/watch?v=AkhEGC0U6Cw\u0026amp;list=PLVugc9CwfQ2MU5ca5wZDbwOSPI5-ptH6X\u0026amp;index=2\" target=\"_blank\"\u003eObservations with an ALPY 600\u003c\/a\u003e: testimonials from 2 users\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eShelyak 1-Year Warranty\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Shelyak","offers":[{"title":"Default Title","offer_id":44667386953957,"sku":"SHE-PF0083","price":1449.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/shelyak-alpy-200-spectroscope-pf0083-astronomy-plus-1.png?v=1715808211","url":"https:\/\/istronomyplus.com\/products\/shelyak-alpy-200-spectroscope-pf-pf0083","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}