Category Archives: Globular Cluster

Messier 13 – Globular Cluster in Hercules

Certainly not the first time I have imaged this huge globular cluster, nor will it be my last. This is the first test of the new pier setup in my observatory. It is hard to believe that there are over 300,000 stars in this cluster! Quick six-minute total exposure.

Tech Specs: Meade 12” LX90, Celestron CGEM-DX mount, 400mm guiding lens, Antares Focal Reducer, ASI290MC guide camera, Canon 6D, 6 x 60 seconds at ISO 3200. Captured with Backyard EOS and stacked in DeepSkyStacker.

…Tom

Globular Cluster Messier 3 (M3)

Messier 3 (also known as M3 or NGC 5272) is a globular cluster found in the northern constellation of Canes Venatici. M3 is one of the three brightest globular clusters in the Northern hemisphere (along with M13 and M5).

Tech Specs: This image is composed of 8 x 60 second images at ISO 3,200 with 4 x 60 second darks and 4 x 1/4000 second bias frames using a Meade LX90 12” telescope and Canon 6D camera mounted on a Celestron CGEM-DX mount. Guided using a Canon 400mm lens and ZWO ASI290MC camera. Imaging was done on April 14, 2017 from Weatherly, Pennsylvania.

SEDS (http://messier.seds.org/m/m003.html)

Wikipedia (https://en.wikipedia.org/wiki/Messier_3)

…Tom

Globular Cluster Messier 53 (M53)

Messier 53 (also known as M53 or NGC 5024) is a globular cluster in the Coma Berenices constellation and is one of the more outlying globular clusters. It is roughly 60,000 light-years away from our solar system.

Tech Specs: This image is composed of 10 x 60 second images at ISO 3,200 with 4 x 60 second darks and 4 x 1/4000 second bias frames using a Meade LX90 12” telescope and Canon 6D camera mounted on a Celestron CGEM-DX mount. Guided using a Canon 400mm lens and ZWO ASI290MC camera. Imaging was done on April 14, 2017 from Weatherly, Pennsylvania.

SEDS (http://messier.seds.org/m/m053.html)

Wikipedia (https://en.wikipedia.org/wiki/Messier_53)

…Tom

Globular Cluster NGC 2419 in Draco

Here is a view of the most distant globular cluster in the Milky Way, NGC 2419, some have postulated that this may be an extra-galactic object. I have seen distances as high as 285,000 light-years distant. It appears small and dim, but it is actually very large and very bright (if it was a bit closer to us), there are estimates of 300-400 million solar masses in this cluster.

Tech Specs: This image is composed of 44 x 30 second images at ISO 3,200 with 5 x 30 second darks and 5 x 1/4000 second bias frames (captured using BackyardEOS software) using a Meade LX90 12” telescope and Canon 6D camera mounted on a Celestron CGEM-DX mount. Imaging was done on February 19, 2017 from Weatherly, Pennsylvania.

…Tom

Messier 70 – Globular Cluster in the Constellation Sagittarius

Globular Cluster Messier 70 (M70 or NGC 6681) is a globular cluster that can be found in the constellation Sagittarius, it is about 29,300 light years away and close to the galactic center. Focus shifted a bit on this one, but I’m still adding it to my Messier list until I can image this again.

Tech Specs: This image is composed of 32 x 15 second images at ISO 3200 with additional dark and bias frames. Meade LX90 12” telescope, Antares Focal Reducer, and Canon 6D camera. Imaging was done on August 30, 2016.

Online resources:

Wikipedia (https://en.wikipedia.org/wiki/Messier_70)

SEDS (http://messier.seds.org/m/m070.html)

NASA (http://www.nasa.gov/mission_pages/hubble/science/messier70.html)

…Tom

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