Daily archives: February 2, 2012

Another cycle around Castletroy of ~42km

The bike now has Ultegra 6700 brakes on it, and a new Fizik Antares saddle. Much nicer to ride for a while, and much more confidence inspiring – there is decent grip when cornering and it’s got really good stopping power especially when coming from ~55kph down to stopped. I took it on a shakedown cycle with the new brakes installed to start the bed-in process. I’ve read that the 6700 should not be mixed with the 5600 105 shifters, but I disagree – they feel great to me. There’s a slightly longer level travel for sure, but with toe-in set correctly at between 0,5 and 1.0 mm this means a nice progressive grab on the rim. Full on emergency stops with the GP4000s tyres are good enough that stoppies will be possible if I try hard enough, and that’s a good sign from the braking effectiveness point of view.

With the new saddle onboard and the updated brakes starting to bed in I went on a looping cycle around Castletroy, in the search for a nice loop that is pleasant to cycle with as little problems as possible. I’ve found that the cycle lanes on the south side of Castletroy (Groody link road, Monaleen Road, SchoolHouse Lane) are not suitable for cycling a road bike at normal speeds (20-35kph) as the surface is rough and rattley with broken surfaces and really poor path-road interfaces. Some places on the paths are rough even at walking pace! I’ve found it is better for my safety to be on the road and able to maintain speed and visibility for roundabouts instead of possibly surprising some poor motorist. Some of the cycle paths are good for kids and people ambling along, but not really for commuters or sport cyclists. It’s a pity that there is little desire to fix the problem and less cash available to implement the fixes. Then again, with a County Council that in all their [lack of] smartness put a pedestrian crossing within the average modern car braking distance from the exit of a roundabout across two lanes – there’s little hope of getting sane and coherent cycle paths that go from A to B.

It was a pleasant enough road cycle, and one of the best bits was accelerating away from cars at the Golf Links Road traffic lights by the Spar, and overtaking cars on the way down to the roundabout! Just under the road speed limit in the are so all legally too.. 56.7 kph according to Node2, 56.09 kph according to Cyctastic.

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Another clear night!

Wow – another clear night where I could actually get out and get some stargazing done!

Seeing was reasonable, but not that good. I got a few videos of Jupiter, one of Mars, and a few of various bits of the moon. all to be processed at a later date. I tried a few 30 sec exposures of M42′s core – came out pretty well even accounting that I was using the 2x barlow to reach focus.. The trapezium was clearly resolved, as were the colours and Herschel’s “Mackerel Sky” pattern of the brightest part of the nebula. After waiting for Mars to clear the treetops to my southeast, I took off the 8″ from the LXD75 and put the Onyx onto the mount. I tried a few widefileds of M42 without much look, the streetlights were washing out the image. So I pointed high to the east, and aimed at M51.

I set the camera to no ISO noise reduction, and auto long exposure noise reduction was set on so that the camera would subtract a dark frame for each light taken. First impression was that I could get the cores of M51 and NGC 5195 and a tantalizing hint of spiral arms at 10 sec @ ISO 800. So I set it off to run out the battery at 1m exposures. I got 14 minutes of exposure, each one a bright orange :( But after downloading and working in IRIS, I got a reasonable image with mag 15 stars and mag 13.5 NGC galaxies in the image. I’m still working on it, but I’ll add it to this post when it’s done.

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