Processing against the Odds

Processing an image with everything against it: extremely low signal (30″), no darks, flats, or any calibration frames whatsoever, using a standard, unmodified, and uncooled DSLR camera—and to make matters worse, it’s a full-frame sensor. In the following article, I’ll explain how I managed to obtain a decent image of the Rho Ophiuchi region using … Leer más

Procesando a la contra (castellano)

Procesado de una imagen con todo en contra, poquísima señal (30″) y sin darks, flats, ni nada de nada, con una reflex estándar, sin modificar y sin refrigerar, y encima para complicarlo más, una full frame. En el siguiente artículo explicaré cómo he hecho para obtener una imagen decente de la zona de Rho Ophiuco, … Leer más

Equalizing Color Part 2 (English)

DECONSTRUCTING A WORK OF ART As we’ve seen in the previous article, color in astrophotography can’t be used just any way we want. Even in narrowband, colors are assigned to specific chemical elements, such as red for Hydrogen, blue and green for Oxygen, orange for Sulfur, etc. Some people get more creative and mix percentages … Leer más

Equalizing Color Part 1.(English)

UNDERSTAND PIXINISIGHT STATISTICS AND HISTOGRAM AND HOW TO USE THEM. DILEMMA BETWEEN PROCESSING OR PAINTING. In this article, we’re going to talk about something fundamental in image processing: understanding the histogram and the statistics box. What do these graphs mean, and how can we use them to improve our images? We’ll focus on color equalization, … Leer más

Sessió pràctica del curset d’astronomia.

El passat dissabte, 17 de maig, vam tindre sessió doble del curset d’iniciació: teòrica al matí, i pràctica per la nit, conduïda per Miguel Molina, a la seu social. La idea d’esta primera sessió pràctica era que els alumnes muntaren els seus propis instruments i que aprengueren nocions bàsiques del seu ús. La terrassa de … Leer más

Multiscale Gradient Correction (English)

How to Properly Use MGC to Fix Light Pollution in Your Photos In this article, I’ll walk you through how to use the new Multiscale Gradient Correction tool to clean up light pollution gradients in your images. The tool works by comparing your image against a massive, ever-growing astrophotometric database.Basically, it builds a background model … Leer más

Linear Workflow OSC (English)

My logical order of work and its logic. When we start to process a photo in PixInsight, the data are linear, that is, we have quantity but almost no intensity, so we see the photo black, or simply with four white dots corresponding to very bright stars. Processing data in LINEAR, means that we have … Leer más

GAIA & PixInsight (English)

How to correctly configure GAIA catalogs within PixInsigt. In this article, I explain how to configure it properly so it works within PixInsight. Gaia is a European space observatory designed to create a detailed 3D map of the Milky Way, helping scientists better understand the galaxy’s structure, formation, and evolution. In simple terms, Gaia is … Leer más