The Lunt Calcium K filter is a specialized solar filter designed to observe and image the Sun’s chromosphere, specifically the spectral line known as the “Calcium K” line. This filter is used in solar astronomy to reveal detailed features and activity occurring in the Sun’s chromosphere, which is the layer […]
Author: Stuart Parkerson
CaK-to-Visible Color-Conversion Eyepiece
A CaK telescope is designed for observing the Sun in the Calcium K wavelength of light. The Calcium K line is a specific spectral line in the solar spectrum produced by ionized calcium (Ca II) atoms in the Sun’s chromosphere. It is located at approximately 393.4 nanometers (nm) in the […]
SkyHunter Mount for Solar Imaging
iOptron’s SkyHunter is an ultra-compact EQ/AZ GoTo mount and using the SkyHunter mount for solar imaging or viewing is a great way to get that perfect image or video of the Annular Solar Eclipse on October 14, 2023 and the Total Solar Eclipse on April 8, 2024. Building on the […]
QHY 5-III-715C Camera
The new QHY 5-III-715C camera is an affordable solar, lunar and planetary camera and at the same time a perfect guiding module for extremely short focal lengths. It is an ultra high-resolution color camera with the very sensitive back-illuminated (BSI) Sony IMX715 color CMOS sensor with extremely low readout noise. […]
Baader SunDancer II Telecentric System TZ-4S
The new Baader SunDancer II Telecentric System TZ-4S was specially developed for the Baader SunDancer II H-alpha filter and replaces the original Baader 3x telecentric system after a simple conversion of the blocking filter. It offers new functionality that allows the SunDancer II H-alpha filter to also be operated on […]
Astro Hutech Hinode for Solar Imaging
The Astro Hutech Solar Tracker, Hinode (”sunrize” in Japanese) SG, is an autoguider designed for casual solar viewing as well as photography. The Hinode Solar Guider with a dovetail bar and paddle does not require precise polar alignment, allowing for quick, convenient setup-and-go for public outreach or quick viewing with […]
DYI Solar Filter Project Using Baader Planetarium AstroSolar Film
Baader Planetarium AstroSolar Film is a specialized solar filter material designed for safe solar observation. In his article – DYI Solar Filter Project Using Baader Planetarium AstroSolar Film – Gary Parkerson, Executive Editor Emeritus Astronomy Technology Today, explains how he uses the film to create filters for white solar observing. […]
Time-Lapse Of the Sun and Sunspots
The NOAA has captured an amazing video showing the time-lapse off the Sun and sunspots from the beginning of Solar Cycle 25. As the NOAA team notes in a recent article, “In case you missed it, Solar Cycle 25 has ramped up much faster than scientists predicted producing more sunspots and eruptions […]
Solar Astronomy Today
The publishers of Astronomy Technology Today have announced a new solar focused magazine, Solar Astronomy Today. The new monthly magazine offers a deep dive into everything about observing and imaging the Sun – and plenty of content on how to best experience the Annular Solar Eclipse on October 14, 2023 […]
Baader Triband Solar SCT
The Baader Triband Solar SCT line of telescopes offers a Schmidt Cassegrain design using a Celestron SCT tube for both solar as well night-time astronomy use. The Baader Triband Solar SCT’s are available in apertures of 8″, 9.25″ and 11″ and feature a Celestron Schmidt Cassegrain optical tube assembly with […]
SAT Volume 1 Issue 1
Welcome to the inaugural issue of Solar Astronomy Today! Created by the Publishers of Astronomy Technology Today, we are excited to offer this new magazine for those interested in learning more about solar imaging and viewing as well as offering a resource for those interested in how to maximize their […]
ZWO ASI462MM Camera
The ZWO ASI462MM Camera is the successor to the ZWO ASI290MM planetary camera and offers an excellent option for planetary, lunar and solar imaging. It utilizes the Sony IMX 462 sensor which includes STARVIS technology for better adaptation to low light conditions. The camera offers low readout noise, particularly at […]