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Gfamily

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Everything posted by Gfamily

  1. Well, at least any disagreements about homophones won't result in rows.
  2. Which one will depend on your sensor size. You need to have a full half degree field of view to get the whole disc in one. You can check the field of view herehttps://www.skyatnightmagazine.com/astronomy-field-view-calculator/
  3. Due to the wide variety of fish species, at spawning time there was a mix of roes across the lake Similarly The boatman refused to take the fallow deer, but was happy to take the roes across the lake Alternatively After the explosion in the Greek letter factory there was a scattering of rhos across the lake I think I saw that 'rose' has the most homophones of any word 🙂 people on this forum are wise, others are idiots
  4. From the FLO page: you can even get a "Customer Return" 150P for £192 if you're quick.
  5. Someone saw something similar from North Wales; it's suggested it was a rocket fuel dump.
  6. One of our club members was able to get a spectrum with his Star Analyser 100. Was able to confirm it as a type 1A Sn. Worth a go, if anyone else has one. The advantage is that it's relatively well separated from its host galaxy, so a relatively clear spectrum can be obtained.
  7. We should be in the Southern Hemisphere Stunning APOD from a few days back https://apod.nasa.gov/apod/ap220426.html
  8. If you look at the Price History details on the realtors' website you do wonder what could have happened in early 2021 that would have doubled the value.
  9. Speaking of packaging - this is how a 100mm diffraction grating I bought some years back arrived.
  10. Following a "FLO Clearance Offer" here, the postie delivered the OVL Field Flattener posted last weekend. A customs returned item, it was posted as having 'scruffy packaging', but the packaging seemed pretty flawless to me.
  11. Lots of one star reviews on Google Play store in the last week for the new version. So I'm holding out for the time being and I'll try it with a spare phone first.
  12. <internally debates whether to mention the phrase "a pair of binoculars"> but decides against. Then realises what he's done.
  13. I'm not officially connected with Solarsphere, but I thought I'd post a quick note to let people know that Solarsphere have decided to cancel their plans for 2022 As per their announcement today. People who have bought tickets through Ticketmaster will be refunded in the usual way. If people have bought direct, they should contact Sarah themselves.
  14. It can, but as far as I can tell, reversing the image applies at all scales - so the 'planisphere view' is also reversed - similarly, adjusting the limiting magnitude can remove the actual targets from the view as well if they're marginal. It's fine, I have a workflow that works for me - and it might help the OP
  15. I use both Sky Safari Plus (the intermediary version) and Stellarium Plus I originally had Stellarium Free and used to rate that higher than SS, in terms of user interface and appearance (in my view at least). However, when I changed my phone and downloaded the latest version, it was a serious step backwards Stellarium Plus has the 'newer' interface, so gets marked down (by me) for that. I use Sky Safari Plus for my telescope control (works really well with my AZ GTi). So why do I have both? As I say, SS Plus is used for scope control, but Stellarium is used in reverse image mode and with the slider set to adjust the limiting magnitude, so that I can confirm exactly which stars I can see in my eyepiece. I would use Stellarium Free for this second 'eyepiece view' mode, except that there are fewer faint stars available. (Handy Hint - on my phone I have renamed the Stellarium app as "+ muiralletS" to remind me that it's in reverse image mode). It works for me, and it may work for you too. (second Handy Hint - 'out of the box', Sky Safari is full of 'ambient' audio effects and animations - these are easily switched off in settings)
  16. Really? what's the point? I have a very good Seiko Solar powered watch that just 'goes' And a fun retro classic Casio watch if I want to 'go out with a digital watch' - but, I really don't see how anyone can see a 'specialness*' for a particular watch design. * especially a 4 figure 'specialness'
  17. If it's the same piece that MrsG heard, it would have been Megan Argo who teaches at UC Lancaster. A great speaker, if you get a chance to catch her at a local astronomy society it's well worth going along. We were fortunate to be able to get a Zoom talk from her at our Astro Society last May.
  18. One of the features of the previous Student Loan Scheme is that it was relatively progressive, in that those who were well paid would pay back more of the value of their loans, whereas those who are on low or average earnings over their working lives don't pay back the majority of the cost of the loans they received. However, the most recent changes to the earnings at which the loan begins to be repaid in tax, and the extended number of years before which the loan is written off means that far more will end up paying back a greater part of their loans. Every year there are industry sponsored PhDs in applied science, mathematics and engineering, that give students the opportunity towards a doctorate, but it has to be said, that the strictly academic career is looking less attractive for many for a number of reasons.
  19. Liverpool John Moores University is offering a MSc in Astronomy for those with a first degree in a mathematical based subject. There's a cost of just under £50 per unit, and has a core of curriculum comprising 120 units and 3x optional modules 30 at units each. Hard work over 2 years, but it has a good reputation as far as I can tell. https://www.ljmu.ac.uk/study/courses/postgraduates/astrophysics-msc There are more general courses open for anyone with an interest, but not necessarily a background in science https://www.ljmu.ac.uk/study/cpd/astrophysics-distance-learning-cpd-courses
  20. As you say, that's not a correct interpretation as it only relates the Rest Mass and the energy equivalent The full relation has to include the contribution from elements with Momentum within the system, which includes the photons of light. As outlined here, the full equation should be meaning that for photons, the appropriate relation is E= 𝑝c, where 𝑝= the momentum of the photon = ℎ 𝜆
  21. I have a rubber band loop attached to the cable so that I can hook it up on the mount. Otherwise it can act like a pendulum and wobble the camera.
  22. Well, the 15 day weather forecast is suggesting that we'll end up in France just as the current excellent weather ends and we get a week of cloud and rain. However, I have prepared a Google Sheet for the Messier Marathon based on Dan Machholz's suggested sequence, beginning with M77 in Cetus as the evening starts, and ends with M30 in Capricornus as the light begins to grow again. Shame it'll be cloudy, but here's a link to it if anyone wants to try (NB M69 and M7 are probably not possible for anyone basically in the north of UK) https://docs.google.com/spreadsheets/d/1L2jp_22MnaoI4cD_hnvzZvcM8z2pLOATz35xKsvpAwE/edit?usp=sharing
  23. 90% visual, but I have used it for imaging the Moon and the Sun occasionally with my mirrorless camera. I'm half thinking of seeing whether to use my SA wedge for AP, but to be honest I've wasted too much time getting less results that didn't really seem to warrant the effort.
  24. Mrs G is an almost exclusive binocular user, downloading the @BinocularSky newsletter every month, particularly when we're able to get away to dark sky sites; though she reckons that finding the fainter planets and brighter asteroids from our suburban garden is always a rewarding challenge.
  25. In my experience, high magnifications for the Moon and Planets are often limited by atmospheric effects, so you may find that the longer inherent focal length doesn't give a lot more usable power as such. I've recently bought a 72mm refractor and it's almost totally taken over my viewing, with the 127 Mak often staying in the bag all evening. Seeing open clusters against the open sky background puts them in context in a way that the much smaller field of view of the Mak just can't match.
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