Phil Harrington's Cosmic Challenge
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Cosmic Challenge: Simeis 147
PhilH - Dec 29 2020 09:56 AM
This Month
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The Skies of January, 2021
cookman - Jan 09 2021 10:03 AM
Recent Topics
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M 81 w/ 26 inch Newtonian
jimegger - Jan 28 2021 12:50 AM
DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging
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NGC 5466 Globular Cluster
jimegger - Jan 28 2021 12:35 AM
DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging
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Astrophotography - CPC deluxe 1100HD with Canon 5D
jaspercrane - Jan 28 2021 12:18 AM
Celestron Computerized Telescopes
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Can I use my 130mm QHY mini guide scope as a view finder for astrophotography?
Rocklobster - Jan 28 2021 12:17 AM
Classic Telescopes
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NGC 3184 w/12.5 inch Newt.
jimegger - Jan 28 2021 12:12 AM
DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging
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Orion imaged at 35mm
indio - Jan 27 2021 11:45 PM
DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging
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Recent Additions
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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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The Discoveries of Galileo – Part 2: Sunspots and Their Movements
Jan 24 2021 12:54 PM by E-Ray
Last month I wrote in Part 1 about Galileo’s discovery that the wandering star, Jupiter, was a planet that had four moons. Recall that my motivation was reading the book Discoveries and Opinions of Galileo published in 1957 by Stillman Drake, a Canadian historian and authority on the complete works on Galileo. This article will cover Galileo’s observations of sunspots which got him into hot water with the Roman Catholic Church in 1616.
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Hypertune my Advanced VX?
Jan 24 2021 12:35 PM by Gork
This question eventually surfaces on just about every mount found in the low to medium range. If you pay $6,000 for a mount it has probably been Hypertuned during manufacturing. For a mount like the AVX what you get is an assembled piece of machinery that is simply bolted, snapped, or screwed together and never really tested or adjusted for fine operation. That is why your mount is usually stiff or tight. I recently bought a new Advanced VX mount as a part of my down-sizing program.
Cloudy Nights Announcements
Change in Feedback Forum location
20 Jan 2021Happy New Year to all!
31 Dec 2020User Reviews
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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 astrocanito
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.
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New Moon Telescopes 20”F/3.3 Review
Aug 23 2020 12:37 PM by ilan_shapira
This instrument answers to all my requirements from a big dob and is mostly used during my dark site trips. While double stars and planets are not the specialty of this scope, it handles them fairly well, but requires extra good conditions - backyard usage is not optimal as atmospheric disturbances dramatically affect the views. DSOs is where this instrument excels and provides the best performance under dark skies, especially with faint galaxies. During my last dark site session, after the COVID-19 restrictions lifted, I had barely time to observe myself as others lined up to view instead.
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FIELD TEST OF THE BAADER MAXBRIGHT® II BINOVIEWER
May 09 2020 01:38 PM by wapaolini
Overall, using the MaxBright II Binovewer has been a transformative experience for me. I have been binoviewing with my telescopes for well over a decade, but the experience has never been what I would call a pleasant one due to the myriad of quirks I find when using the William Optics Binoviewers. However, with the MaxBright II Binoviewer all the issues I previously encountered are now fully resolved, making my experience binoviewing for the first time entirely enjoyable.
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My Experience using SkyWatch for the Alphea All Sky Camera from Alcor Systems
Mar 05 2020 08:17 AM by TeslaTrek
The Alphea 6CL AllSky Camera is a well-made ruggedized outdoor color camera with equally ruggedized connectors. There is no bubble level to aid vertical alignment. The Alphea camera is very expensive given the accompanying SkyWatch software is not reliable and the user interface not well thought out. The software has the feel of an explorative research project into what can be done with an AllSkyCam. The overall slow performance is unimpressive. I discovered many bugs and quirks. It includes many features, which are not well documented. This along with almost non-existent user support makes for an expensive and frustrating AllSky Camera experience. Given the present state of the software, the user might want to consider AllSkyEye. In summary, given all the issues I found with SkyWatch, I would still look forward to a significant software update because SkyWatch does show much promise.
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Astroart 7 - A Review and "How To" (Part 1)
Feb 25 2020 03:29 PM by shadowoo2
This tutorial/review will be a 2 part series. We will discuss in this series the capturing process from start to finish and then part 2 will delve into the processing of your acquired subs.
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My experience using two 80-millimeter long-focus refractors
Dec 13 2019 03:26 PM by caussade
The Orion and TMB refracting telescopes are both a joy to use, and will undoubtedly stay with me for life. I sometimes get offers to sell but have politely declined; as the reader will suspect, the thought of a sale has never entered my mind.