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Waddensky

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Everything posted by Waddensky

  1. This is incredible! Pictures like this make it so clear that M78 and the surrounding NGCs are just small, illuminated parts of the huge dust clouds in the area. What a detail. Very, very nice!
  2. You can enter coordinates without cookies in the url, like this: http://clearoutside.com/forecast/52.09/5.12
  3. Yes, both the moving lights and the flashes are most likely satellites. I can't remember a night that I didn't see them. If you enter your location on websites like Heavens Above, you can find out when they are visible with amazing accuracy.
  4. Satellites, most likely. A few years ago I would have suggested Iridium satellites, but the ones that produced these very bright flashes are currently being or already have been de-orbited.
  5. Hi Gonariu and welcome! Don't worry about your level of English, they've accepted my broken English for years now without any complaints .
  6. Interesting paper from Alexander et al. on arXiv: The Autodidactic Universe From this article: "Our universe observes a whole bunch of laws of physics, but the researchers say other possible laws of physics seem equally likely, given the way mathematics works in the universe. So if a group of candidate laws were equally likely, then how did we end up with the laws we really have?"
  7. Most stargazing forecast apps, including mine, use a single weather model as source. It's usually best to use these alongside other sources of weather data, preferably as 'local' (high resolution) as possible. There are convenient websites that allow you compare several weather models at a glance, such as this one. This will give you an idea to what extent the models are in agreement.
  8. This is a great idea actually to get an idea of size and weight of the different models.
  9. Smaller dobs are tabletops, they need to be placed on a table. Some of them have a thread to mount them on a camera tripod, but I don't know if that works well - I've never tried it. Most dobsons can be disassembled into two parts, the base and the OTA. The base is heavy and quite unhandy to carry around. I'm pretty sure the weights of the seperate parts can be found online.
  10. A good UHC filter will do too. The Veil is one of those objects where a filter makes all the difference between completely invisible and bright and detailed. A very remarkable contrast.
  11. Great selection of objects and nice reports, thanks! The 'wobbling technique' is very effective to detect the faintest targets.
  12. Oof! A challenge indeed. B was only confirmed visually in 1896 with a 36 inch refractor. The smallest aperture I could find that was able to split Procyon visually is an 18 inch binodob. Sounds like mission impossible from the Dutch mountains with the usual seeing and your average scope .
  13. Lunar twilight is a real thing, but can largely be ignored for most practical purposes. So if the Sun is sufficiently below the horizon (more than 18 degrees) before the Moon rises, you can enjoy a dark sky. But my guess is that it's not yet fully dark at 10 PM. Still, I'm pretty sure viewing galaxies is much better with the full Moon above the horizon than in a Bortle 8 environment. The Milky Way will be quite washed out though.
  14. It depends on the paper size you print the charts on (it's a vector PDF so you can pretty much choose any paper size). The Deep-sky Watch atlas has a declination grid of 5 degrees, if you measure the distance between two grid lines you can calculate the size of the Telrad circles (they are 4, 2 and 0.5 degrees).
  15. Had another look at the nova tonight with the 10x50s. The moonlight hindered a bit but the star was easily found with the help of some averted vision. I even spotted M52 as a ghostly glow. I got the feeling the nova was a tiny bit dimmer than yesterday. It's a lot of fun to follow the developments night after night. It reminds me of my observations of the naked-eye nova in Delphinus in 2013.
  16. How fast is super fast? Most visible satellites are in LEO and roughly have the same speed.
  17. Maybe you could catalogue them so you don't confuse them with comets anymore . Hmm, I wonder why no one else has thought of that before. Brilliant idea.
  18. Incredible! I'd put that on the wall instantly. What a detail!
  19. Collimation is critical with these fast scopes, so make sure you have the right tools. You don't need fancy laser thingies per se, a good Chesire will do. A nice, stable seat is a necessity, preferably one that can be adjusted in height because observing with a dob varies from bending over to almost standing up. Some use drum thrones, although heavy they are very comfortable. I had one, but now I use a light-weight, cheap ironing chair. A zoom eyepiece is very convenient, but many observers like to supplement it with one widefield eyepiece, like the Panoptic 24 or a ES 24/68, because the Baader field of view is quite narrow at the longer focal lengths. But maybe the 'wisest' advice is to just go out and use the scope! You'll notice along the way what you miss and what you need. Have fun!
  20. Had to drive around to chase a break in the clouds, but I finally succeeded in observing the nova again just now for the first time since Friday. To me, the nova looked about the same brightness as during my earlier observation. Not the brightest star in the field, but unmistakable in my binoculars.
  21. Other than the excellent points Steve mentions, the field of view of the Hyperion Zoom is a bit narrow on the longer focal lengths. That's why some people supplement the zoom with a good widefield eyepiece, the ES 24/68 or the 24 Panoptic for example. Other than that, I find the zoom very convenient and it works great with my ES 2x focal extender. The combination gets me in the 300x region for double star or planetary work.
  22. Haha yes, this exactly. It's not what you see, but what you see. Or something more eloquent .
  23. Zarya ('dawn') was the first module of the ISS. I don't know why SkySafari still calls it that way (I noticed it too), but it's a nice reminder of the past of the famous space station . Under normal circumstances, ISS is the brightest satellite. If you manage to track it for a few seconds with a telescope, a moderate magnification will already reveal its solar panels.
  24. That sounds about right, globulars are just fuzzy but perfectly round patches in small apertures. Resolving stars in the outskirts of the cluster is possible, but requires a lot of aperture and magnification. It also depends on the cluster. Messier 4 and 22 are known to be reasonably easy to resolve, but they don't rise very high from mid-northern latitudes. Messier 10, 12 and 71 are also nice targets to try to spot individual stars. Messier 3 and 13, although bright, are not so easy.
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