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About this blog

This is where I will record all things pertaining to my ongoing adventure in astronomy, imaging and processing images.

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Astro Musing

JWST Data retrieval and processing

The James Web Space Telescope is now in position, fully calibrated and sending its data back. All of the data has been uploaded to the Barbara A. Mikulski Archive for Space Telescopes AKA MAST For those people who don't know this archive comprises archived data from many space telescopes and it is fully searchable. Much of the data is publicly available and can be downloaded anonymously. However some data from active missions is protected during an Exclusive Access Period or EAP. This is so
TerryMcK

TerryMcK in Astro Musing

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Astro Musing

An Astrophotography NAS

The main logistical problem with astrophotography is where to store all those precious hard won data files. It's cheap to buy hard disks of quite large capacities nowadays. Indeed 12TB drives are easily available and can be utilized. However there is an issue with magnetic harddisks and to a lesser extent SSD drives. If the electronics in the drive die then you stand to lose all your data. So why not copy your data to two or more drives as a backup. Yes you can do that and it works very w
TerryMcK

TerryMcK in Astro Musing

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Astro Musing

More Mods to the HEQ5 Pro Mount

The latest was to change the bearings in the HEQ5 Pro to SKF and TimKen bearings as I have already covered in this thread https://www.backyardastro.org/topic/1736-heq5pro-bearing-replacement.   I followed AstroBloke's excellent Youtube video showing how he did it and also took the opportunity to clean out all the factory grease. I replaced that which SuperLube PTFE based grease and didn't have such a heavy hand as the SkyWatcher folk did. The mount now moves free and easily in both axi
TerryMcK

TerryMcK in Astro Musing

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Astro Musing

WilliamOptics ZS73 and RedCat51 side by side.

I recently bought a WO RedCat51 (the WO FanBoi I am) deciding to mount it side by side with the WO ZS73 to maximize imaging in the fickle UK environment. The 73 has the x0.8 reducer flattener to give an equivalent focal length of 344mm.     The RedCat on the other hand has a focal length of 250mm.   With some magic from PixInsight or APP I should be able to merge the images acquired by these two into a reasonable sized image. Maybe use the Redcat as the
TerryMcK

TerryMcK in Astro Musing

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Astro Musing

Mods to the HEQ5 Pro Mount

Puck replacement First of all I replaced the frankly rubbish Star Watcher puck that comes with the HEQ5Pro mount. The screws on this mar dovetails no end.   for the far superior Primaluce Labs Big Dovetail clamp. This has both Vixen and Losmandy capabilites. It is a proper clamp with large clamping knobs and plenty of fastener holes.     It also gave me the opportunity to mount a lightweight frame seen in Ferrari red below which I designed and built that
TerryMcK

TerryMcK in Astro Musing

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Astro Musing

The Amber Cat Observatory

It used to be called The Jousting Tent Observatory which was because my roll on roll off roof was actually similar to a medieval jousting tent.   This isn't it by the way but you get the idea.   Mine looked more like this but if we had chose to do some jousting in the garden we could have used this to shelter from the British summer weather.   Mine was on detachable wheels that could be pulled over the scope at a moments notice. No problem with trying to
TerryMcK

TerryMcK in Astro Musing

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