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December Diamonds: Four Stunning Deep Sky Targets!

Journey to explore the cosmos is a thrilling endeavor for amateur astronomers and stargazers alike. The vast expanse of the universe holds a treasure trove of celestial wonders, here are our top picks to observe and image during December!

Messier 27 – Cosmic Remnant:

Our first stop on this cosmic tour is Messier 27, also known as the Dumbbell Nebula. Located in the constellation Vulpecula, this planetary nebula is a favorite among astronomers. Formed from the outer layers of a dying star expelled into space, the Dumbbell Nebula showcases intricate details and a distinctive dumbbell shape that is a remnant of a once exploded star.

Use a telescope with high magnification and look for the stellar core remnant in the middle of the nebula, spotting the white dwarf is a challenge for amateur telescopes but under dark skies and large aperture you can add an extra layer of fascination to this celestial gem. Also by using an OIII filter will enhance the views of the nebulosity itself.

Iris Nebula – Celestial flower:

Venturing into the constellation Cepheus, we discover the Iris Nebula, named for its resemblance to an iris flower. This reflection nebula is illuminated by a central star, and its striking colors are the result of dust particles scattering and reflecting starlight from the open cluster in the core of this magnificent nebulosity. The Iris Nebula is a hidden gem in the night sky, waiting to be explored.

To bring out the intricate details of the Iris Nebula one needs to gather as much light as possible, by stacking several hours worth of images together the dark nebulosity around the core will start to appear.

Messier 45 - The Seven Sisters:

Moving on to Messier 45, we encounter the Pleiades, a stunning open star cluster in the constellation Taurus and is easily visible to the naked eye! Also known as the Seven Sisters, this cluster consists of hot, luminous stars surrounded by a delicate blue reflection nebula.

A pair of binoculars are an excellent choice for observing the Pleiades, allowing you to appreciate the cluster's beauty. By using telescopes you can start looking for blue reflection nebulae around the stars of the cluster.

Heart Nebula – Celestial masterpiece

Our final destination is the Heart Nebula, a huge emission nebula located in the constellation Cassiopeia. Aptly named, this celestial masterpiece exhibits a shape reminiscent of a heart. The glowing gas and dust within the Heart Nebula are energized by young, hot stars, creating a visual feast for astrophotographers. Narrowband filters can be employed to isolate the specific wavelengths of light emitted by hydrogen, oxygen and sulphur, enhancing the contrast and bringing out the intricate details of the Heart Nebula.

For visual observation the core of this nebulosity offers a splendid star cluster, Melotte 15, large telescope and dark skied is required to see the surrounding nebulosity visually.


Exploring the cosmos is a rewarding experience for sky watchers of all levels. These celestial wonders offer a glimpse into the vastness and beauty of our universe, reminding us of the endless mysteries waiting to be uncovered in the night sky. Whether you're a seasoned astronomer or a novice with a passion for stargazing, these deep sky targets provide a captivating journey into the wonders of space. Keep looking up!