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Recent Additions

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  FIELD TEST: THE NOH CT-20 ALT-AZ MOUNT

  Aug 29 2021 12:14 PM by wapaolini

  After several weeks of field use of the NoH CT-20 mount for general astronomical observing with both my TSA-102 and APM-152 refractors, I found the operation and use of this mount to be highly intuitive in the field. The axis friction knobs are conveniently located and are tactile-distinctive from the saddle plate knobs that hold the telescope on the mount, so there was never any question in the dark as to which knob-type I was operating. Operation of the mount was also smooth and precise throughout the testing and general field observing sessions. At no time did I ever find that the CT-20 mount was anything but superlatively capable to handle even my large 6-inch f/8 refractor.

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  BASIC EXTRAGALACTIC ASTRONOMY Part 9: Supermassive Black Hole and Host Galaxy Coevolution

  Sep 06 2021 11:20 AM by rekokich

  The only primary evidence available to an astronomer about a very remote object consists of photometric measurements, a spectrogram, and an image which is in many cases no more than a pinpoint of light. In this article we present basic cosmological concepts and simplified mathematical methods which allow an amateur to derive from this meager data a surprising number of physical properties of distant extragalactic objects with a precision of several percent within professional results.

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  SkyTee-2 Alt/Az Mount Review

  Jul 27 2021 09:42 AM by ScrewLoose

  Overall, I think that this mount is good value for money and a good choice for my purposes. I'm confident that the mount will be more than adequate for my needs.

Cloudy Nights Announcements

User Reviews

• 
  FIELD TEST: THE NOH CT-20 ALT-AZ MOUNT

  Aug 29 2021 12:14 PM by wapaolini

  After several weeks of field use of the NoH CT-20 mount for general astronomical observing with both my TSA-102 and APM-152 refractors, I found the operation and use of this mount to be highly intuitive in the field. The axis friction knobs are conveniently located and are tactile-distinctive from the saddle plate knobs that hold the telescope on the mount, so there was never any question in the dark as to which knob-type I was operating. Operation of the mount was also smooth and precise throughout the testing and general field observing sessions. At no time did I ever find that the CT-20 mount was anything but superlatively capable to handle even my large 6-inch f/8 refractor.

• 
  SkyTee-2 Alt/Az Mount Review

  Jul 27 2021 09:42 AM by ScrewLoose

  Overall, I think that this mount is good value for money and a good choice for my purposes. I'm confident that the mount will be more than adequate for my needs.

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  SharpStar Askar ACL200 200-mm f/4 astrographic telephoto lens

  Jun 29 2021 08:35 AM by covington

  I strongly recommend the ACL200 for wide-field astrophotography. It also has some uses for (fully manual) nature and landscape photography. The optical performance is exceptional, and the physical construction is unusually well suited for astronomical use.

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  A review of the Unistellar EVscope

  May 31 2021 01:48 PM by bmwscopeguy

  Well here is another product that has received a lot of hype and press, but without divulging much useful information about the telescope itself. Well needless to say, the hype worked on me….and I took delivery of my (used) Unistellar EVscope today.

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  Astrotrac 360 tracking platform – first impression

  Jan 31 2021 12:33 PM by Magnar W.

  After some waiting my Astrotrac 360 arrived, and the drive looks great straight out of the box. Beautifully machined, light weight, and compact. Just what I was asking for, after moving to a city, leaving my fully equipped small observatory behind me at the countryside.

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  FIELD TEST: CARL ZEISS APOCHROMATIC & SHARPEST (CZAS) BINOVIEWER

  Jan 24 2021 01:12 PM by wapaolini

  This astronomical binoviewer is offered by Denis Levatić of Croatia (denis0007dl@gmail.com) as an after-market modification of new Zeiss binoviewer bodies. Mr. Levatić's value-added modifications to these Zeiss binoviewer bodies are then offered under the moniker of "The Carl Zeiss Apochromatic & Sharpest Binoviewer".

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  Omegon 32mm 70º SWA eyepiece review

  Jan 24 2021 12:29 PM by Tiago Ferreira

  There is no review of this eyepiece on internet and i bought it and found interesting to make a video about it.

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  Review of iPolar hardware and software for polar alignment

  Dec 05 2020 01:41 PM by stephen.kennedy

  iOptron’s iPolar upgrade, which replaces the optical scope on the iOptron SkyGuider Pro, does not accurately provide polar alignment when compared to results measured using identical equipment operating Sharpcap Pro and the specified guide camera and scope. Data was collected while simultaneously running both the iPolar alignment software and SharcapPro on the same equipment. The deficiency is consistent with an issue in the iPolar system’s calculation of altitude parameters in polar alignment after plate solving.

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  Review of the Hubble Optics 14 inch, f/4.6 Premium Ultra Light Dobsonian Telescope

  Sep 29 2020 12:35 PM by Chris Westland

  I looked at HO telescopes for some time before purchasing mine. On paper, the design is elegant, and takes advantage of the 6063-T6 aluminum alloy used in all of the telescope’s components. The sandwich mirror is innovative. The upper cage looks more rigid than a flat ring, but without being too heavy. In general the HO telescopes are unique and affordable. I am a previous owner of an Obsession Classic 20", and Dave Kriege’s scope set a standard for what I was expecting from a Dobsonian telescope.

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  My experience with the Starizona Landing Pad

  Aug 29 2020 12:31 PM by emgeesea

  I wanted to provide a review of my experience with a Starizona Landing Pad I recently purchased for my CPC 1100.

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  A quick Review of the MIGHTY MAX 12V 100AH BATTERY

  Aug 29 2020 11:20 AM by skunkwirks

  I would highly recommend this battery for your portable equipment, I am convinced.

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  Nexus II Review

  Aug 29 2020 10:54 AM by xrayvizhen

  SUMMARY: The Nexus II is an outstanding piece of equipment that allows anyone to use their Smartphone or tablet and see where their telescope is precisely pointed. It is an extremely cost effective and easy way for someone to add digital setting circles and a “Push-To” function to just about any telescope.