# @rami_astro on Instagram

- **Type:** Video
- **Original URL:** https://www.instagram.com/p/DE76gYzP__G
- **Gondola URL:** https://gondola.cc/posts/35530103-rami-astro-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/f713a4e51e.jpg
- **Posted:** 2025-01-17T18:08:13.000+00:00
- **Account Owner:** Rami Ammoun (@rami_astro) — https://gondola.cc/rami_astro

## Caption

4 hours exposure of the Horsehead Nebula, captured from a bortle 3 skies. 
I used an Svbony SV555 refractor to make this capture. 

Aperture: 54mm
Focal Length: 243mm
Focal Ratio: f/4.5 to f/22
Optics: Triplet Petzval APO
Image Circle: 44mm
Aperture Blades: 14 pieces
Focus: Manual single speed
Filter Diameter: 2”
Total Weight: 4.4 lbs

The image:
4 hours of processed light exposure from OSC cam, each sub was 10 minutes at 100 gain. 

Enjoy!

#horseheadnebula

## Stats

- **Views:** 40,214
- **Likes:** 5,959
- **Shares:** 0
- **Comments:** 93

## Tags

horseheadnebula

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