Arnaud Geoffroy - Astrophoto
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Triangulum Galaxy

M 33 / NGC 598

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Description

Magnificent M33, also known as the Triangulum Galaxy! Located approximately 3 million light-years away in the constellation Triangulum, it's one of our closest cosmic neighbors and part of the Local Group alongside our Milky Way and the famous Andromeda (M31).

With a diameter of about 60,000 light-years, M33 is admittedly smaller than our two large spiral galaxies, but it remains no less spectacular. Its spiral structure is beautifully detailed, revealing vast star-forming regions like the famous NGC 604 nebula, one of the largest known HII regions, visible as a bright patch in its spiral arms.

What makes M33 particularly endearing to astrophotographers is that it presents its face almost perfectly to us, offering a stunning view of its spiral arms dotted with young blue stars and pink clouds of ionized hydrogen. It's one of the most distant objects visible to the naked eye under truly dark skies - a real observational challenge!

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ℹ️ The watermark protects the online image. Your prints will be delivered without any marking.

Final dimensions may vary slightly (±5%) due to necessary technical cropping.

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Technical details

Location :
Rockwood, Texas, USA (Starfront Observatories)
Date :
30/09/2025 - 01/10/2025
Celestial Coordinates :
RA: 01h 33m 39s
Dec: +30° 40' 44"
Acquisition :
93 x 300s + 15 x 900s (11h30)
Calibration :
Offsets + Flats
Mount :
ZWO AM5
Optics :
Celestron Rasa 8
Camera :
Asi2600Mc Pro
Filter :
Antlia V-Pro Luminance 2"
Distance :
3000000 light years
Constellation :
Triangulum
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