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coatesg

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coatesg last won the day on May 11 2018

coatesg had the most liked content!

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About coatesg

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    Proto Star

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    https://www.chromosphere.co.uk

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    West Oxfordshire
  1. I found this in our loft when getting the Xmas decorations down - I'd been stung twice by queens in November, and dispatched another 16 in the house - couldn't figure where they were coming from until this point and didn't know it was there in the summer at all. Poor santa.. A 3 foot wasp nest makes for a good show and tell for the kids at school though!
  2. Oof! I just have issues with wax moth around my frame storage - luckily not this! Been a good year for my bees so far, had 17lbs of early spring honey off one hive (which has set quickly as rape seed in there), they have 2 mostly full supers now as well, and have had to do anti-swarm procedures twice already... Also caught a swarm (not mine!) last weekend, so rapidly running out of boxes, frames, space etc...!
  3. That's definitely Vespa crabro, the European Hornet (our native one) - the head markings and yellow down the abdomen give it away. They are enormous, impressive beasts! (The invasive Asian one is smaller, much darker on the abdomen, and has yellow lower legs).
  4. Credit card works really well - use it like a knife to quickly go across the skin surface to get the barb out without squeezing it all in!
  5. A while back I'd chatted to @Helen about trying to schedule some items for the Faulkes/LCOG telescopes to use up some allowance. IY UMa has been reported as in superoutburst (and cloudy here...), so decided to schedule up a time resolved series to look for superhumps - the request didn't go on for quite as long as I would have liked (it did 72 out of 120 90sec exposures), but I still seemed to grab a nice curve - a longer run would give the two peaks and hence the orbital period, but unfortunately, the request stopped and didn't complete (probably scheduling - maybe there's a way of getting all the observations in one block?) Here's the output graph (with two comp stars plotted (Magnitudes in V band - was taken with an SBIG 6303 on one of the 0.4m SCT from Teide, Tenerife - https://lco.global/observatory/0.4m/)
  6. Don't know if you have already, but if you have the Time of Minimum for primary and secondary, you can submit for inclusion in the JAAVSO - there's details on the AAVSO Eclipsing Binary page. Cheers
  7. Nice observation (And yes - this is an object with requested observations as it goes towards a predicted increase in brightness when the smaller black hole passes through the theorized accretion disc of the second - I had a go at magnitude measurement a few weeks back but got clouded out...). is correct for the naming source, but it was named as such because Blazars encompass both BL Lac objects and OVV (Optically Violent Variable) quasars as sub types. (The distinction being the BL Lacs are related to radio weak galaxies, whereas OVVs relate to radio loud galaxies). In reality, Blazars are a sub-type of the larger quasar group ("Quasi-Stellar Object" - appears point like like a star, but the spectra/variability is non-stellar), where the relativistic emission jets of the feeding black hole point along the line of sight for blazars - BL Lac and Blazar are often used interchangeably, but that's not quite the whole story ?
  8. Very nice! (Presume this is the same data repeated to give 2 periods on the phase diagram - esp given a 6hr period?).
  9. Think this looks like a great start - if you can get the two panes to match, it's going to be a great result!
  10. Sorry yes, missed it off! We're about 10 miles west of Oxford. Cheers Graeme
  11. I have just detected it before in 6.5hrs of exposure using a modded 350d and a 85mm lens at ISO400, f4 : https://www.chromosphere.co.uk/2017/12/18/widefield-flaming-star-and-spaghetti-nebulae/ A cooled cam with better response would improve things, but it's very faint and I'd expect days of exposure would be needed to get anything approaching the contrast above...!
  12. Yeah - you'd need to dither it a lot (way more than a few pixels) for the flare to go away. It's one of the hardest things to track down sometimes - incident reflections and glad can happen when you're quite some way from the star that causes it!
  13. Nice job. The weird artifact is flare, or a rogue reflection from a bright star (guessing one of the stars in the Plough). The only way to eliminate it is to flock or baffle appropriately and stop the light from reflecting off whatever is causing it....
  14. I'd like to try and help a bit with this - would maybe need a little guidance as to what they most want out of the runs (in terms of data for use in schools, types of data they are most after etc?). There's so many objects that could be targeted - I guess it's getting the most useful stuff in the time available. Timing studies for eclipsing binaries? Time resolved photometry on any transients? Classification studies? Lots of southerly variables aren't as well studied as northern hemisphere objects. Mira's are probably a bit too long in period I think? Graeme
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