How does the Sky-Watcher Skymax 150 perform on Jupiter with its 1800mm focal length?
The Skymax 150's 1800mm focal length makes it an exceptional instrument for observing Jupiter. This long focal length allows you to easily achieve the high magnifications (over 200x with the right eyepiece) needed to resolve the planet's main atmospheric features. You can expect to clearly see the primary equatorial belts, distinguish color variations, and spot the Great Red Spot when it is visible. The high-contrast optics will also help in resolving the four Galilean moons as distinct disks during transits.
Is the Skymax 150 a good choice for observing globular clusters like M13?
Yes, the Skymax 150 is a great telescope for globular clusters. Its 151mm aperture gathers enough light to resolve the dense cores of bright clusters like the Hercules Cluster (M13) into individual stars. The f/12 focal ratio provides a dark sky background that makes the cluster stand out, and at high power, you can begin to see the "star dust" effect across the entire object.
What kind of mount do I need for the Sky-Watcher Skymax 150?
With an optical tube weight of 14 lbs, the Skymax 150 is manageable for a wide range of mounts. For visual use, a sturdy alt-azimuth mount like the Sky-Watcher AZ5 or a computerized AZ-GTi would be sufficient. For astrophotography, a robust German equatorial mount with a payload capacity of at least 20-25 lbs, such as a Sky-Watcher HEQ5-R or EQ6-R, is recommended to handle the telescope and additional imaging gear while maintaining tracking accuracy.
Can I use the Skymax 150 for deep-sky astrophotography?
While possible, the Skymax 150 is not optimized for deep-sky imaging. Its long f/12 focal ratio requires much longer exposure times to capture faint nebulae and galaxies compared to faster instruments like a Newtonian or refractor. It excels at planetary, lunar, and solar imaging where its long focal length is a significant advantage.
What is the advantage of the 31% secondary obstruction on the Skymax 150?
The small 31% central obstruction is a primary reason for the Skymax 150's high-contrast views. A smaller secondary mirror blocks less of the incoming light path, which reduces diffraction and improves the transfer of fine detail. This results in sharper images with darker sky backgrounds, which is especially noticeable when observing the Moon and planets.
Does the Skymax 150 come with everything I need to start observing?
The Skymax 150 optical tube assembly includes several key accessories to get you started. It comes with a 9x50 finderscope for locating objects, a 2-inch star diagonal for comfortable viewing, and a 2-inch 28mm LET eyepiece that provides a 64.3x magnification. You will still need to provide a compatible mount and tripod to use the telescope.
