Then I've Thrown Down Diamonds in the Sand - Messier 50 (M50)
December 13, 2024
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Messier 50 (M50) is an open star cluster visible in the lower right corner of the image. Located about 2,900 light years away, it is often called the Heart-Shaped Cluster. It contains approximately 200 stars and is thought to be around 78 million years old.
Open star clusters (or “open clusters”) are collections of stars—perhaps a few dozen to a few thousand—that likely formed in the same molecular cloud but are not gravitationally bound to each other. They eventually wander away from each other and find their own paths through the galaxy. Our own sun was probably once part of an open cluster at one time but has since moved out on its own.
Also visible on the far left side of the image is the red and blue StDr 44—a candidate planetary nebula the amateur team of Marcel Drechsler and Xavier Strottner discovered in 2020. That team has been extremely prolific over the years racking up 170 planetary nebula or potential planetary nebula discoveries together and many more with other people.



Image Capture
Location:
Deep Sky West
Camera:
Total integration: 45h 33m
Integration per filter:
- Lum: 10h 9m (203 × 180")
- R: 7h 18m (146 × 180")
- G: 7h 18m (146 × 180")
- B: 7h 18m (146 × 180")
- Hα: 6h 50m (82 × 300")
- O3: 6h 40m (80 × 300")
Coordinates: 7h 2m 38s · -8° 14′ 19″
Moravian C5a-100M
Finding Chart

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