Asteroids and other objects such as comets and even space junk are hard to find when they pass close to the Earth because their motion relative to us is so fast. Normal planetarium programs can’t track them. This blog shows you how to find and download up-to-date official data so you can locate them with your go-to telescope.
Tutorials
Choosing the right shutter release cable for your camera
With a shutter release cable you can fire your camera remotely without touching it. They’re very useful in photography, especially macrophotography and astrophotography. They are available for a huge range of cameras. Choosing the correct shutter release cable for your camera can be difficult. Here is a list of available cables.
iOptron control programs: Commander and Commander Lite – what’s the difference?
With the release of the free iOptron Lite app for Android (the IOS version has been out for a while), we thought it’s time to explain what this package does,…
Read MoreWhat are the differences between a tracker, a guider and an equatorial mount?
If you’ve got a camera and you’ve been out at night, chances are you’ve thought about getting photographs of what’s above you. It’s only natural. You can start with a…
Read MoreModifying the Early Model Sky-Watcher Pier Extension
The 20cm Saxon / Sky-Watcher NEQ6/AZ-EQ6 pier extension is a great way to gain the extra height needed to prevent long focal length OTA’s from colliding with the tripod legs.…
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What are high-speed filters?
Filters, and what are high-speed filters? Filters are great for astrophotography. They work by blocking out colours (that is, frequencies of light) that you don’t want. The images you get when you use a filter are made up of the frequencies they let through. Filters can’t, of course, enhance or amplify any frequencies, but by…
Getting wide field Milky Way images – powering your camera and dew heater
Getting deep images of the Milky Way can take a lot of power from your DSLR’s battery. Using a dummy battery to power your camera means you can leave it running all night and you won’t have to change batteries. You power the dummy battery with a PegasusAstro DSLR Buddy, and that means you can also run a dew heater strap from the mains, or a big battery.
Macrophotography of a Bindii with the WeMacro Rail
Remember those horrible prickles in summer lawns? They’re often caused by Bindii, which have vicious spikes that stick a seed to your foot. The plant spreads itself using you as transport. Bill took a macrophoto of the Bindii using a WeMacro Rail and a reversed lens. You can see how nasty this creature is.