• Astrophotography - introduction: Saturn planet (left) and Pleiades star cluster (right), shots by the author.

    Astrophotography: introduction to astronomy photography

    Astrophotography allows to record great pictures of the Universe: from the planets to the Moon, from galaxies to nebulas, from the Sun to star clusters. Astrophotography of some objects may be simple while for others, especially because of their low brightness, it’s more difficult and may require special instruments and techniques. Thanks…

  • Astrophotography and light pollution

    Does light pollution affect astrophotography? Is it possible to take pictures of galaxies, nebulae or star clusters with a telescope also from the light polluted backyard by using narrowband filters? Discover the result of our test comparing the image of a nebula recorded with the same telescope and the same…

  • Astrophotography camera for deep-sky: what to choose

    Choosing from various astrophotography camera for the deep-sky may seem complicated. In this article, through a series of practical examples, we will see how to choose astrophotography camera to record also the weakest details of galaxies, nebulae and star clusters through with long exposures (these camera are different from the…

  • Telescope mount, what to choose: left the SkyWatcher AZ-EQ5 mount head that is smaller and lighter than AZ-EQ6 to the right, but offering a lower load capacity.

    Telescope mount, what to choose

    Telescope mount, what to choose: “Power is nothing without control”, as stated by an advertisement, applies to telescopes as well, especially in astrophotography when taking long-exposure pictures of objects that are too faint to be seen. In fact, in order to take picture of celestial objects by using telescopes, it is…

  • Telescope for deep-sky astrophotography: SkyWatcher ESPRIT 120 ED apochromatic refractor with ESATTO 3"

    Telescope for astrophotography, what to choose.

    When we use a camera to take a normal picture, we can select the magnification which best suits the object of our image, switching from wide-angle shots (for example 20mm focal length) to higher magnification shots (for example 200mm focal length). This freedom of choice is not possible in astrophotography as,…

  • Deep Sky Stacker: calibrate and sum astro pictures

    Deep Sky Stacker (DSS – https://deepskystacker.free.fr/english/index.html) is a free software that allows you to calibrate and sum the astrophotos recorded by CCD or DSLR cameras. Calibration is a process that dramatically reduces the defects of pictures such as electronic noise caused by long exposures required for this application and vignetting (light reduction towards the edges…

  • PHD Guiding, free software for autoguide

    PHD Guiding is a free software among the most used for autoguiding since it’s very easy to use. In this tutorial we will explain how to set up this software using an Atik TITAN camera but the same steps can also be made using other autoguiding cameras.