Advice for stirring your online community and fostering engagement
When you enter into any new area of science, you almost always find
yourself with a baffling new language of technical terms to learn before you can converse with the experts. This is certainly true in astronomy both in terms of terms that refer to the cosmos and terms that describe the tools of the trade, the most prevalent being the telescope. So to get us off of first base, let’s define some of the key terms that pertain to telescopes to help you be able to talk to them more intelligently. The first area of specialization in telescopes has to do with the types of telescopes people use. The three designs of telescopes that most people use are the Refractor, the Reflector and the Schmidt Cassegrain telescope. The refractor telescope uses a convex lens to focus the light on the eyepiece. The reflector telescope has a concave lens which means it bends in. It uses mirrors to focus the image that you eventually see. The Schmidt Cassegrain telescope uses an involved system of mirrors to capture the image you want to see. A binocular telescope uses a set of telescopes mounted and synchronized so your view of the sky is 3-D. Beyond the basic types, other terms refer to parts of the telescope or to the science behind how telescopes work. Collimation is a term for how well tuned the telescope is to give you a good clear image of what you are looking at. You want your telescope to have good collimation so you are not getting a false image of the celestial body. Aperture is a fancy word for how big the lens of your telescope is. But it’s an important word because the aperture of the lens is the key to how powerful your telescope is. Magnification has nothing to do with it, its all in the aperture.
167417 comments
sboboet
Hello there, You've done a fantastic job. I'll definitely digg it and personally recommend to my friends.
Comment LinkI'm confident they'll be benefited from this web site.
Sterk Tradelux
I'm really enjoying the design and layout of your website.
Comment LinkIt's a very easy on the eyes which makes it much more
enjoyable for me to come here and visit more often. Did you hire out
a designer to create your theme? Fantastic work!
1win_jbkl
билайн тв доверительный платеж http://1win12013.ru
Comment Linkmostbet_thOt
mostbet сайт http://mostbet12013.ru/
Comment Linktoto slot
We are a group of volunteers and starting a new scheme in our community.
Comment LinkYour site offered us with useful information to work on. You have performed a
formidable job and our whole neighborhood shall be grateful to you.
1win_wzkl
1вин ракета https://1win12013.ru
Comment LinkDiplomi_nisi
купить аттестат за 11 класс официальный http://arus-diplom25.ru/ .
Comment LinkPetertam
Эти ситуации требуют немедленного вмешательства, и приезд врача позволяет оперативно оказать помощь.
Comment LinkПолучить дополнительные сведения - http://narkolog-na-dom-v-krasnodare14.ru/narkolog-i-psikhiatr-v-krasnodare/
anciesyyPr
лучшие нейросети-синонимайзеры
Comment LinkOK9
OK9 là nền tảng giải trí trực tuyến uy tín, mang đến cho người chơi
Comment Linktrải nghiệm an toàn,
http://valleyhousingrepository.library.fresnostate.edu/user/ok9nyc1
https://homologa.cge.mg.gov.br/user/ok9nyc
https://dados.ifrs.edu.br/user/ok9nyc
https://dados.ufcspa.edu.br/user/ok9nyc1
https://dadosabertos.ifc.edu.br/user/ok9nyc
https://data.carpathia.gov.ua/user/ok9nyc
https://datosabiertos.sanjuan.gob.ar/user/ok9nyc
https://opendata-bc.gov.ua/user/ok9nyc
https://opendata.ternopilcity.gov.ua/user/ok9nyc
https://data.loda.gov.ua/user/ok9nyc
https://healthdata.nis.gov.kh/user/ok9nyc
http://edu.mrpam.gov.mn/user/ok9nyc
https://admin.opendatani.gov.uk/tr/datarequest/e434d929-6594-4e16-9435-49532ccf9a89
http://178.128.34.255/user/ok9nyc
https://data.gov.ro/user/ok9nyc1
https://dadosabertos.ufersa.edu.br/user/ok9nyc1
https://esapa.edu.ar/profile/ok9nyc/
https://hoc.salomon.edu.vn/profile/ok9nyc/
https://noti.edu.vn/profile/ok9nyc/
https://taq.edu.vn/profile/ok9nyc/
https://iviet.edu.vn/profile/ok9nyc/
https://ech.edu.vn/profile/ok9nyc/
https://ech.edu.vn/profile/ok9nyc/
https://umcourse.umcced.edu.my/profile/ok9nyc/?view=instructor
https://www.academia.umss.edu.bo/profile/ok9nyc/
https://smglobal.igmis.edu.bd/profile/ok9nyc/?view=instructor
https://ncon.edu.sa/profile/ok9nyc/
https://portal.stem.edu.gr/profile/ok9nyc/
https://lqdoj.edu.vn/user/ok9nyc
https://sou.edu.kg/profile/ok9nyc/
https://bbiny.edu/profile/ok9nyc/
https://www.belrea.edu/candidate/ok9nyc/
https://osisat.edu.ng/elearning/profile/ok9nyc/
https://ait.edu.za/profile/ok9nyc/
https://institutocrecer.edu.co/profile/ok9nyc1/
https://pibelearning.gov.bd/profile/ok9nyc/
https://motionentrance.edu.np/profile/ok9nyc1/
https://futureist.edu.bd/profile/ok9nyc/
https://lms.gkce.edu.in/profile/ok9nyc/
https://matrix.edu.lk/profile/ok9nyc/
https://intranet.estvgti-becora.edu.tl/profile/ok9nyc/
https://dvsv.pxu.edu.vn/profile/ok9nyc/?view=instructor
http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=3716289
https://ensp.edu.mx/members/ok9nyc1/activity/36954/
https://escuelageneralisimo.edu.pe/lms-user_profile/23579/
https://gov.trava.finance/user/ok9nyc2
https://cecaep.edu.pe/lms-user_profile/14445
https://fii.edu.gh/members/ok9nyc/activity/10343/
https://centennialacademy.edu.lk/members/ok9nyc1/activity/25086/
https://ilm.iou.edu.gm/members/ok9nyc1/
https://learndash.aula.edu.pe/miembros/ok9nyc1/
https://learndash.aula.edu.pe/miembros/ok9nyc1/activity/106870/
https://securityplus.edu.my/profile/ok9nyc/
https://yez.liberiasp.gov.lr/candidate/nl744506/
https://www.fbioyf.unr.edu.ar/evirtual/tag/index.php?tc=1&tag=ok9nyc
https://ava.ifsul.edu.br/reitoria/mod/forum/discuss.php?d=6308
https://mooc.ifro.edu.br/mod/forum/discuss.php?d=27515
https://ssp.nidm.gov.in/tag/index.php?tc=1&tag=ok9nyc
https://mentor.khai.edu/tag/index.php?tc=1&tag=ok9nyc
https://jobs.lifewest.edu/employer/ok9nyc/?v=5e9c52c6d618
https://ok9nyc-9f4022.webflow.io/
https://ok9nyc9.pixnet.net/blog/post/192191401
https://ok9nyc9.mystrikingly.com/
https://ok9nyc9.doorkeeper.jp/
https://www.keepandshare.com/discuss4/27162/ok9
https://ok9nyc.mypixieset.com/
https://ok9nyc.exblog.jp/34778352/
http://ok9nyc.ukit.me/
http://ok9nyc2.ulcraft.com/
https://ok9nyc9.usluga.me/
https://ok9nyc9.hashnode.dev/ok9-the-gioi-giai-tri-truc-tuyen-xanh-chin-uy-tin-hang-dau-2025
https://68c51034c5d00.site123.me/
https://hackmd.io/@uuFicN6fTZGY0Fa6asrpgQ/SkUUecGogx
https://pad.fs.lmu.de/s/Gc6ReJg0h
http://www.truck-business.cz/profile/ok9nyc/blog/19287-ok9nyc.html
https://hack.allmende.io/s/nh2npOtta
https://quicknote.io/01d6fde0-906c-11f0-a4f0-db8cf66f024e
https://jobhop.co.uk/blog/438510/ok9nyc
https://scrapbox.io/ok9nyc9/ok9nyc
https://magic.ly/ok9nyc9/ok9nyc
https://doc.clickup.com/90181744726/d/h/2kzm0e2p-618/b62f8f3a37e4d75
https://ok9nyc9.tistory.com/1
https://pastelink.net/pw5gckzx
https://ok9nyc9.seesaa.net/article/518120962.html?1757746819
https://ok9nyc-1.gitbook.io/ok9nyc-docs/
https://pad.darmstadt.social/s/izwoQzx8x
https://bbcovenant.guildlaunch.com/users/blog/6694697/?mode=view&gid=97523
https://plaza.rakuten.co.jp/ok9nyc/diary/202509130000/
https://stuv.othr.de/pad/s/EIX5Plzww
http://ok9nyc.website3.me
https://nl-template-bloemist-17577471337311.onepage.website/
https://www.notebook.ai/documents/1926453
https://promosimple.com/ps/3bfb5/ok9nyc
https://ok9nyc9.amebaownd.com/
https://ok9nyc9.therestaurant.jp/
https://ok9nyc9.shopinfo.jp/
https://ok9nyc9.storeinfo.jp/
https://ok9nyc9.theblog.me/
https://ok9nyc9.themedia.jp/
https://ok9nyc9.localinfo.jp/
https://mlx.su/paste/view/50c4b559
https://mez.ink/ok9nyc9
https://postheaven.net/mm9vs984yn
https://ok9nyc1.bandcamp.com/album/ok9nyc
https://telegra.ph/ok9nyc-09-13
https://2all.co.il/web/Sites20/ok9nyc/DEFAULT.asp
https://hedgedoc.eclair.ec-lyon.fr/s/Qud7O2v2i
https://pbase.com/ok9nyc9/
https://www.ohay.tv/view/ok9nyc/LzR6kfzYkS
https://ok9nyc9.blogspot.com/2025/09/ok9nyc.html
https://all4webs.com/ok9nyc9/home.htm?57787=45527
https://pads.zapf.in/s/d3TcWbRqY
https://hedgedoc.dezentrale.space/s/NUFnVJXmk
https://pad.lescommuns.org/s/hXSConvhW
https://ok9nyc.ampblogs.com/ok9nyc-74065903
https://ok9nyc.tinyblogging.com/ok9nyc-81191319
https://tudomuaban.com/chi-tiet-rao-vat/2671807/ok9nyc.html
https://www.sociomix.com/c/entertainment/ok9nyc/1757748231
https://ok9nyc9.stck.me/chapter/1242407/ok9nyc
https://ok9nyc.pages10.com/ok9nyc-72650723
https://ok9nyc.blogocial.com/ok9nyc-73106613
https://hackmd.okfn.de/s/SJI-65foxx
https://blog.sighpceducation.acm.org/wp/forums/users/ok9nyc/
https://sighpceducation.hosting.acm.org/wp/forums/users/ok9nyc/
https://forum.codeigniter.com/member.php?action=profile&uid=191718
http://forum.446.s1.nabble.com/OK9-Th-gi-i-gi-i-tri-tr-c-tuy-n-xanh-chin-uy-tin-hang-u-2025-td90372.html
https://forum.herozerogame.com/index.php?/user/124024-ok9nyc1/
https://www.silverstripe.org/ForumMemberProfile/show/265161
https://forum.pabbly.com/members/ok9nyc.63176/#about
http://users.atw.hu/animalsexforum/profile.php?mode=viewprofile&u=21399
https://forum.kryptronic.com/profile.php?id=228278
http://dtan.thaiembassy.de/uncategorized/2562/?mingleforumaction=profile&id=383863
https://www.giveawayoftheday.com/forums/profile/1190037
https://forums.stardock.com/user/7562329
https://forum.m5stack.com/user/ok9nyc1
https://forums.alliedmods.net/member.php?u=439168
https://www.rctech.net/forum/members/ok9nyc-502939.html
http://forum.orangepi.org/home.php?mod=space&uid=5878934
https://www.itchyforum.com/en/member.php?354825-ok9nyc1
http://web.symbol.rs/forum/member.php?action=profile&uid=1179988
https://jerseyboysblog.com/forum/member.php?action=profile&uid=50684
https://forumreklamowe.com/User-ok9nyc
https://tilengine.org/forum/member.php?action=profile&uid=146127
https://copynotes.be/shift4me/forum/user-23711.html
https://mforum.cari.com.my/home.php?mod=space&uid=3325565&do=profile
https://forum.repetier.com/profile/ok9nyc1
https://www.huntingnet.com/forum/members/ok9nyc1.html
https://www.openlb.net/forum/users/ok9nyc1/
https://www.rcuniverse.com/forum/members/ok9nyc1.html
http://onlineboxing.net/jforum/user/profile/401049.page
https://forum.skullgirlsmobile.com/members/ok9nyc1.137541/#about
https://forums.wincustomize.com/user/7562329
http://vetstate.ru/forum/?PAGE_NAME=profile_view&UID=206812&backurl=%2Fforum%2F%3FPAGE_NAME%3Dprofile_view%26UID%3D204153
https://www.zubersoft.com/mobilesheets/forum/user-93827.html
https://forum.pokexgames.pl/member.php?action=profile&uid=64061
https://hcgdietinfo.com/hcgdietforums/members/ok9nyc1/
https://forums.megalith-games.com/member.php?action=profile&uid=1415153
https://forums.ashesofthesingularity.com/user/7562329
https://lib39.ru/forum/index.php?PAGE_NAME=profile_view&UID=82551
https://thuthuataccess.com/forum/user-25205.html
https://www.ironlifting.it/forum/member.php?u=393370
https://forums.sinsofasolarempire2.com/user/7562329
http://www.shakuhachiforum.com/profile.php?id=13931
https://forums.galciv4.com/user/7562329
https://sklad-slabov.ru/forum/user/26011/
https://www.blinker.de/forum/core/user/29665-ok9nyc/#about
https://forum.html.it/forum/member.php?userid=476315
https://legenden-von-andor.de/forum/memberlist.php?mode=viewprofile&u=41427
https://www.syncdocs.com/forums/profile/ok9nyc1
https://forum.aceinna.com/user/ok9nyc1
https://www.chaloke.com/forums/users/ok9nyc1/
https://www.iniuria.us/forum/member.php?601508-ok9nyc1
http://www.canmaking.info/forum/user-1692632.html
https://forum.dmec.vn/index.php?members/ok9nyc.138792/
http://www.haxorware.com/forums/member.php?action=profile&uid=399196
http://google.ws/url?q=https://ok9.nyc/
http://google.vu/url?q=https://ok9.nyc/
http://google.vg/url?q=https://ok9.nyc/
http://google.tt/url?q=https://ok9.nyc/
http://google.to/url?q=https://ok9.nyc/
http://google.tn/url?q=https://ok9.nyc/
http://google.tm/url?q=https://ok9.nyc/
http://google.tl/url?q=https://ok9.nyc/
http://google.tk/url?q=https://ok9.nyc/
http://google.tg/url?q=https://ok9.nyc/
http://google.td/url?q=https://ok9.nyc/
http://google.st/url?q=https://ok9.nyc/
http://google.sr/url?q=https://ok9.nyc/
http://google.so/url?q=https://ok9.nyc/
http://google.sn/url?q=https://ok9.nyc/
http://google.sm/url?q=https://ok9.nyc/
http://google.sk/url?q=https://ok9.nyc/
http://google.sh/url?q=https://ok9.nyc/
http://google.se/url?q=https://ok9.nyc/
http://google.sc/url?q=https://ok9.nyc/
http://google.rw/url?q=https://ok9.nyc/
http://google.ru/url?q=https://ok9.nyc/
http://google.rs/url?q=https://ok9.nyc/
http://google.ro/url?q=https://ok9.nyc/
http://google.pt/url?q=https://ok9.nyc/
http://google.ps/url?q=https://ok9.nyc/
http://google.pn/url?q=https://ok9.nyc/
http://google.pl/url?q=https://ok9.nyc/
http://google.nu/url?q=https://ok9.nyc/
http://google.nr/url?q=https://ok9.nyc/
http://google.no/url?q=https://ok9.nyc/
http://google.nl/url?q=https://ok9.nyc/
http://google.ne/url?q=https://ok9.nyc/
http://google.mw/url?q=https://ok9.nyc/
http://google.mv/url?q=https://ok9.nyc/
http://google.mu/url?q=https://ok9.nyc/
http://google.ms/url?q=https://ok9.nyc/
http://google.mn/url?q=https://ok9.nyc/
http://google.ml/url?q=https://ok9.nyc/
http://google.mk/url?q=https://ok9.nyc/
http://google.mg/url?q=https://ok9.nyc/
http://google.me/url?q=https://ok9.nyc/
http://google.md/url?q=https://ok9.nyc/
http://google.lv/url?q=https://ok9.nyc/
http://google.lu/url?q=https://ok9.nyc/
http://google.lt/url?q=https://ok9.nyc/
http://google.lk/url?q=https://ok9.nyc/
http://google.li/url?q=https://ok9.nyc/
http://google.la/url?q=https://ok9.nyc/
http://google.kz/url?q=https://ok9.nyc/
http://google.ki/url?q=https://ok9.nyc/
http://google.jo/url?q=https://ok9.nyc/
http://google.it/url?q=https://ok9.nyc/
http://google.it.ao/url?q=https://ok9.nyc/
http://google.iq/url?q=https://ok9.nyc/
http://google.ie/url?q=https://ok9.nyc/
http://google.hu/url?q=https://ok9.nyc/
http://google.ht/url?q=https://ok9.nyc/
http://google.hr/url?q=https://ok9.nyc/
http://google.hn/url?q=https://ok9.nyc/
http://google.gy/url?q=https://ok9.nyc/
http://google.gr/url?q=https://ok9.nyc/
http://google.gp/url?q=https://ok9.nyc/
http://google.gm/url?q=https://ok9.nyc/
http://google.gl/url?q=https://ok9.nyc/
http://google.gg/url?q=https://ok9.nyc/
http://google.ge/url?q=https://ok9.nyc/
http://google.ga/url?q=https://ok9.nyc/
http://google.fr/url?q=https://ok9.nyc/
http://google.fm/url?q=https://ok9.nyc/
http://google.fi/url?q=https://ok9.nyc/
http://google.es/url?q=https://ok9.nyc/
http://google.ee/url?q=https://ok9.nyc/
http://google.dz/url?q=https://ok9.nyc/
http://google.dm/url?q=https://ok9.nyc/
http://google.dk/url?q=https://ok9.nyc/
http://google.dj/url?q=https://ok9.nyc/
http://google.de/url?q=https://ok9.nyc/
http://google.cz/url?q=https://ok9.nyc/
http://google.cv/url?q=https://ok9.nyc/
http://google.com/url?q=https://ok9.nyc/
http://google.com.vn/url?q=https://ok9.nyc/
http://google.com.vc/url?q=https://ok9.nyc/
http://google.com.uy/url?q=https://ok9.nyc/
http://google.com.ua/url?q=https://ok9.nyc/
http://google.com.tw/url?q=https://ok9.nyc/
http://google.com.tr/url?q=https://ok9.nyc/
http://google.com.tj/url?q=https://ok9.nyc/
http://google.com.sv/url?q=https://ok9.nyc/
http://google.com.sl/url?q=https://ok9.nyc/
http://google.com.sg/url?q=https://ok9.nyc/
http://google.com.sb/url?q=https://ok9.nyc/
http://google.com.sa/url?q=https://ok9.nyc/
http://google.com.qa/url?q=https://ok9.nyc/
http://google.com.py/url?q=https://ok9.nyc/
http://google.com.pr/url?q=https://ok9.nyc/
http://google.com.pk/url?q=https://ok9.nyc/
http://google.com.ph/url?q=https://ok9.nyc/
http://google.com.pg/url?q=https://ok9.nyc/
http://google.com.pe/url?q=https://ok9.nyc/
http://google.com.pa/url?q=https://ok9.nyc/
http://google.com.om/url?q=https://ok9.nyc/
http://google.com.np/url?q=https://ok9.nyc/
http://google.com.ni/url?q=https://ok9.nyc/
http://google.com.ng/url?q=https://ok9.nyc/
http://google.com.nf/url?q=https://ok9.nyc/
http://google.com.na/url?q=https://ok9.nyc/
http://google.com.my/url?q=https://ok9.nyc/
http://google.com.mx/url?q=https://ok9.nyc/
http://google.com.mt/url?q=https://ok9.nyc/
http://google.com.ly/url?q=https://ok9.nyc/
http://google.com.lb/url?q=https://ok9.nyc/
http://google.com.kw/url?q=https://ok9.nyc/
http://google.com.kh/url?q=https://ok9.nyc/
http://google.com.jm/url?q=https://ok9.nyc/
http://google.com.hk/url?q=https://ok9.nyc/
http://google.com.gt/url?q=https://ok9.nyc/
http://google.com.gi/url?q=https://ok9.nyc/
http://google.com.gh/url?q=https://ok9.nyc/
http://google.com.fj/url?q=https://ok9.nyc/
http://google.com.et/url?q=https://ok9.nyc/
http://google.com.eg/url?q=https://ok9.nyc/
http://google.com.ec/url?q=https://ok9.nyc/
http://google.com.do/url?q=https://ok9.nyc/
http://google.com.cy/url?q=https://ok9.nyc/
http://google.com.cu/url?q=https://ok9.nyc/
http://google.com.co/url?q=https://ok9.nyc/
http://google.com.bz/url?q=https://ok9.nyc/
http://google.com.by/url?q=https://ok9.nyc/
http://google.com.br/url?q=https://ok9.nyc/
http://google.com.bo/url?q=https://ok9.nyc/
http://google.com.bn/url?q=https://ok9.nyc/
http://google.com.bh/url?q=https://ok9.nyc/
http://google.com.bd/url?q=https://ok9.nyc/
http://google.com.au/url?q=https://ok9.nyc/
http://google.com.ar/url?q=https://ok9.nyc/
http://google.com.ai/url?q=https://ok9.nyc/
http://google.com.ag/url?q=https://ok9.nyc/
http://google.com.af/url?q=https://ok9.nyc/
http://google.co.zw/url?q=https://ok9.nyc/
http://google.co.zm/url?q=https://ok9.nyc/
http://google.co.za/url?q=https://ok9.nyc/
http://google.co.vi/url?q=https://ok9.nyc/
http://google.co.ve/url?q=https://ok9.nyc/
http://google.co.uz/url?q=https://ok9.nyc/
http://google.co.uk/url?q=https://ok9.nyc/
http://google.co.ug/url?q=https://ok9.nyc/
http://google.co.tz/url?q=https://ok9.nyc/
http://google.co.th/url?q=https://ok9.nyc/
http://google.co.nz/url?q=https://ok9.nyc/
http://google.co.mz/url?q=https://ok9.nyc/
http://google.co.ma/url?q=https://ok9.nyc/
http://google.co.ls/url?q=https://ok9.nyc/
http://google.co.kr/url?q=https://ok9.nyc/
http://google.co.ke/url?q=https://ok9.nyc/
http://google.co.jp/url?q=https://ok9.nyc/
http://google.co.je/url?q=https://ok9.nyc/
http://google.co.in/url?q=https://ok9.nyc/
http://google.co.im/url?q=https://ok9.nyc/
http://google.co.il/url?q=https://ok9.nyc/
http://google.co.id/url?q=https://ok9.nyc/
http://google.co.cr/url?q=https://ok9.nyc/
http://google.co.ck/url?q=https://ok9.nyc/
http://google.co.bw/url?q=https://ok9.nyc/
http://google.cn/url?q=https://ok9.nyc/
http://google.cm/url?q=https://ok9.nyc/
http://google.cl/url?q=https://ok9.nyc/
http://google.ci/url?q=https://ok9.nyc/
http://google.ch/url?q=https://ok9.nyc/
http://google.cg/url?q=https://ok9.nyc/
http://google.cf/url?q=https://ok9.nyc/
http://google.cd/url?q=https://ok9.nyc/
http://google.cat/url?q=https://ok9.nyc/
http://google.ca/url?q=https://ok9.nyc/
http://google.bt/url?q=https://ok9.nyc/
http://google.bs/url?q=https://ok9.nyc/
http://google.bj/url?q=https://ok9.nyc/
http://google.bi/url?q=https://ok9.nyc/
http://google.bg/url?q=https://ok9.nyc/
http://google.bf/url?q=https://ok9.nyc/
http://google.ba/url?q=https://ok9.nyc/
http://google.az/url?q=https://ok9.nyc/
http://google.at/url?q=https://ok9.nyc/
http://google.as/url?q=https://ok9.nyc/
http://google.am/url?q=https://ok9.nyc/
http://google.al/url?q=https://ok9.nyc/
http://google.ae/url?q=https://ok9.nyc/
http://google.ad/url?q=https://ok9.nyc/
http://google.ac/url?q=https://ok9.nyc/
http://ditu.google.com/url?q=https://ok9.nyc/