The Sharpstar SCA260 is an aspherical Cassegrain with a short focal ratio. The fact that the primary mirror is aspherical means that it has a high grinding difficulty for production and its testing requirements can be more complex than some traditional primary mirror types. The primary and secondary mirrors are […]
Author: Stuart Parkerson
GM2000 HPS II COMBI MOUNT
The new GM 2000 HPS II COMBI mount from 10Micron combines the stability of the company’s GM2000 HPS II Monolith mount with the portability of the company’s GM 2000 HPS II Ultraport mount. These two mounts are no longer being produced and will be replaced by the GM 2000 HPS II COMBI successor model. This […]
Sequence Generator Pro SGP4
Sequence Generator Pro (SGP) is releasing an upgrade to its software platform with its introduction of SGP4 automation software for astrophotography. With SGP you can sequence and coordinate all of your gear in order to make the most of your time under dark skies. The software suite will control your […]
Pocket Sky Atlas
The Pocket Sky Atlas from Sky & Telescope has been released in its second edition. The first edition was released in 2006 and it quickly became a popular resource for amateur astronomers. The Pocket Sky Atlas is available in standard and jumbo sized version which are identical in content and only differ […]
B&D Astro Accessories
B&D Astro Accessories is a new company offering astronomy accessories including counterweights and dovetails. The owners and operators, Larry Beatty and Mike Dennis, have been avid amateur astronomers for over 50 years and bought Robin Casady Astro Accessories to form the new company. According to the Mike and Larry, “Robin’s […]
ASCOM Alpaca for FocusLynx
ASCOM Alpaca for FocusLynx is now available through Optec’s FocusLynx Alpaca driver v3.50. With the release of ASCOM Platform 6.5 Optec has released Alpaca drivers and software for FocusLynx and ThirdLynx controllers. Installer packages for Windows, Raspberry Pi, Linux and Mac are available. Optec’s Daniel Van Noord has been working […]
Sharpstar 121 SDQ
The Sharpstar 121 SDQ is an apochromatic Petzval quintuplet refractor with a focal ratio of f/5.6. The telescope features a five-element in two groups design that includes one Japanese FPL-53ED lens and a full-surface multi-layer coating. The air-spaced triplet objective includes the ED glass element and the rear doublet acts […]
Canon Powershot Zoom
The Canon Powershot Zoom is a new camera best described as a spotting scope or monocular which shoots stills and video. Canon recently launched the PowerShot Zoom exclusively in Japan through a crowdfunding campaign on Makuake, a Japanese crowdfunding site. Since the camera was immediately available to crowdfunding participants after the […]
QHY600 Lite Astroimaging Camera
The new QHY600L Lite is a newest version of the QHYCCD QHY600 series of cameras. It is very much like the PHOTO version of the QHY600 camera with a few exceptions that help to make it among the most competitive IMX455 based camera on the market. The QHY600L Lite uses […]
Starlight Instruments SI-RCEF
The Starlight Instruments SI-RCEF allows you to electronically control the helical focuser of the William Optics Red Cat and Space Cat 51mm Telescopes. The Starlight Instruments SI-RCEF comes with a modified version of the company’s Handy Stepper Motor (HSM). This “Handy” stepper motor unit motor housing allows you to still […]
A Comprehensive Field Guide To The NGC
“A Comprehensive Field Guide To The NGC” is a four-volume field guide with over 7,000 images of NGC objects that has been compiled by Bhavesh Jivanlal Parekh of Portland Oregon. Parekh notes, “This started out in late 2018 as a nice-to-have tool for me and a couple of my observing […]
Solar Cycle 25 Presentation from Woodland Hills Telescope
Solar Cycle 25 could usher in a new period of solar activity. To celebrate the new Solar Cycle 25 Woodland Hills Telescope has decided to go all out on another live stream dedicated to Solar Astronomy. The new cycle of our closet star will be highlighted by Woodland Hills Telescope […]