# Cygnus Loop

[![IMG_0096.jpeg](https://astro.afonsomuralha.com/uploads/images/gallery/2025-08/scaled-1680-/img-0096.jpeg)](https://astro.afonsomuralha.com/uploads/images/gallery/2025-08/scaled-1680-/img-0096.jpeg)

> **My best photo (mosaic) of the Cygnus Loop -** [Full resolution picture available on Telescopius](https://telescopius.com/pictures/view/199579/deep_sky/ngc-6960/veil-nebula-mosaic/by-afonso_muralha?gallery_order=is_featured&gallery_page=1&gallery_user_id=39078#annotated=off)   
> **Details**:  
> <span style="white-space: pre-wrap;"> - </span>**Date**: 28/Aug/2024  
> <span style="white-space: pre-wrap;"> - </span>**Exposures**: 202x2min Lights, 20x2min Darks  
> <span style="white-space: pre-wrap;"> - </span>**ISO**: 800  
> **Equipment**:  
> <span style="white-space: pre-wrap;"> - </span>**Camera**: Canon 6D  
> <span style="white-space: pre-wrap;"> - </span>**Telescope**: Svbony Apochromatic 80/448 mm SV503 80ED Doublet (0.8x reducer/flattener)  
> <span style="white-space: pre-wrap;"> - </span>**Mount**<span style="white-space: pre-wrap;">: EQ5 modified with Onstep </span>

### **Description**

The Cygnus Loop (radio source W78, or Sharpless 103) is a large supernova remnant (SNR) in the constellation Cygnus, an emission nebula measuring nearly 3° across. Some arcs of the loop, known collectively as the Veil Nebula or Cirrus Nebula, emit in the visible electromagnetic range. Radio, infrared, and X-ray images reveal the complete loop.

<p class="callout info">[Find more information about the Cygnus Loop on Wikipedia](https://en.wikipedia.org/wiki/Cygnus_Loop)</p>

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### **Personal Stats**

#### **First observation**

<table class="align-center" id="bkmrk-%F0%9F%93%86-12%2F01%2F2013-%F0%9F%93%8D-los-a" style="border-collapse: collapse; width: 50%; border-width: 1px; height: 58px;"><colgroup><col style="width: 21.2346%;"></col><col style="width: 78.5185%;"></col></colgroup><tbody><tr style="height: 29px;"><td class="align-center" style="border-width: 1px; height: 29px;">📆

</td><td class="align-center" style="border-width: 1px; height: 29px;">28/08/2022

</td></tr><tr style="height: 29px;"><td style="border-width: 1px; height: 29px; vertical-align: middle;">📍

</td><td class="align-center" style="border-width: 1px; height: 29px;">Canadelo, Portugal

</td></tr></tbody></table>

#### **Imaging sessions**

<table class="align-center" id="bkmrk-%C2%A0datebortle-classtot" style="border-collapse: collapse; width: 80%; height: 87.5px; border-width: 1px;"><colgroup><col style="width: 86px;"></col><col style="width: 244px;"></col><col style="width: 298px;"></col></colgroup><tbody><tr style="height: 29.5px;"><td class="align-center" style="background-color: rgb(255, 255, 255); border-style: none; height: 29.5px; border-width: 1px;"><span style="white-space: pre-wrap;"> Date</span>

</td><td class="align-center" style="height: 29.5px; border-width: 1px;">Bortle Class

</td><td class="align-center" style="height: 29.5px; border-width: 1px;">Total Exposure Time

</td></tr><tr style="height: 29px;"><td class="align-center" style="vertical-align: middle; height: 29px; border-width: 1px;">28/8/2024

</td><td class="align-center" style="vertical-align: middle; height: 29px; border-width: 1px;"><span style="white-space: pre-wrap;"> Class 3</span>

</td><td class="align-center" style="vertical-align: middle; height: 29px; border-width: 1px;"><span style="white-space: pre-wrap;"> 6h44min (202x2min)</span>

</td></tr></tbody></table>

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**Captured media**

#### **Photographs**

[![IMG_0096.jpeg](https://astro.afonsomuralha.com/uploads/images/gallery/2025-08/scaled-1680-/img-0096.jpeg)](https://astro.afonsomuralha.com/uploads/images/gallery/2025-08/scaled-1680-/img-0096.jpeg)

> **My best photo (mosaic) of the Cygnus Loop -** [Full resolution picture available on Telescopius](https://telescopius.com/pictures/view/199579/deep_sky/ngc-6960/veil-nebula-mosaic/by-afonso_muralha?gallery_order=is_featured&gallery_page=1&gallery_user_id=39078#annotated=off)   
> **Details**:  
> <span style="white-space: pre-wrap;"> - </span>**Date**: 28/Aug/2024  
> <span style="white-space: pre-wrap;"> - </span>**Exposures**: 202x2min Lights, 20x2min Darks  
> <span style="white-space: pre-wrap;"> - </span>**ISO**: 800  
> **Equipment**:  
> <span style="white-space: pre-wrap;"> - </span>**Camera**: Canon 6D  
> <span style="white-space: pre-wrap;"> - </span>**Telescope**: Svbony Apochromatic 80/448 mm SV503 80ED Doublet (0.8x reducer/flattener)  
> <span style="white-space: pre-wrap;"> - </span>**Mount**<span style="white-space: pre-wrap;">: EQ5 modified with Onstep </span>

[![combined2_crop.jpg](https://astro.afonsomuralha.com/uploads/images/gallery/2025-09/scaled-1680-/combined2-crop.jpg)](https://astro.afonsomuralha.com/uploads/images/gallery/2025-09/scaled-1680-/combined1-crop.jpg)

> **My best photo of the East Veil Nebula -** [Full resolution picture available on Telescopius](https://telescopius.com/pictures/view/241592)   
> **Details**:  
> <span style="white-space: pre-wrap;"> - </span>**Date**: 6/Sep/2025  
> <span style="white-space: pre-wrap;"> - </span>**Exposures**: 10x5min Lights, 3x5min Darks, 15x5s Flats, 15x5s Dark Flats  
> <span style="white-space: pre-wrap;"> - </span>**Gain**: 126  
> <span style="white-space: pre-wrap;"> - </span>**Sensor Temperature**: -10ºC  
> <span style="white-space: pre-wrap;"> - </span>**Guiding**: Yes  
> **Equipment**:  
> <span style="white-space: pre-wrap;"> - </span>**Camera**: ZWO ASI294MC Pro  
> <span style="white-space: pre-wrap;"> </span><span style="color: rgb(170, 170, 170); background-color: rgb(51, 51, 51); white-space: pre-wrap;">- </span>**Filters**<span style="color: rgb(170, 170, 170); background-color: rgb(51, 51, 51);">: SVBONY SV260 Light pollution filter</span>  
> <span style="white-space: pre-wrap;"> - </span>**Telescope**: Orion Newtonian 8"/790 mm N 203/790 (0.95x reducer/flattener)  
> <span style="white-space: pre-wrap;"> - </span>**Mount**<span style="white-space: pre-wrap;">: EQ6 modified with Onstep </span>