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Daz Type-R

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About Daz Type-R

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    Star Forming

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    Male
  • Location
    Hucknall, Nottingham
  1. I went down the setting circle route, did a guide on another forum for dob users, have a look, see what you think...... https://www.eastmidlandsstargazers.org.uk/topic/5570-setting-circle-mod-for-dob-bases/ (Mods / admins - not sure if I`m allowed to link to another astronomy forum, please remove if so)?
  2. Hi, I suggested the 1" ones purely so they did not catch on the screws while hold the OTA frame in place. You can use 2" ones if you want but you will have to move them about with trial and error, if it catches some screws then it won't turn! HTH?
  3. Yep, you've got it, Pm'ing the 21 will give me a 10.5mm, weight is not so much an issue for me as I have a Moonlite focuser on my OTA, that can take the weight of a PM and the 21mm. Although thinking about it, the 8mm gives me 150x mag, the 21mm powermated (10.5mm) will give me 114x mag, not that much difference really so may not actually use the 21mm powermated, I guess time and sky condition will tell.
  4. Just Google Tele Vue Power Mate.
  5. Hi, no, Barlows and Power Mates are a different beast. While they do the same job, a Barlow (in my opinion) is no where near as good. Im sure that will start a Barlow vs Power Mate debate
  6. +1 for the above. Never owned a barlow so cant really comment but I would have a fixed length ep over a barlowed ep any day.
  7. For the 10mm no, a barlowing a 10mm will make it a 3.3mm ep. Barlowing the 25mm will give you a 8.3mm ep. The 3.3mm will give you 196x mag, I know that is below what I said (200x mag) but it is still pushing it. The 8.3mm (barlowed 25mm) will give you 78x magnification. Word of warning though on barlows, cheap ones are naff, dim the image you are trying to view and generally produce a bad view. If you go down the barlow route, try to get a good one, like a Tal for example.
  8. In your scope (having a focal length of 650mm) a 2.5mm EP would give you 260x magnification, far too much mag for this country. Remember, you are not just magnifying what you are looking at but all the atmosphere and dust particles in-between, generally, 260x mag is too much for our moisten laden air, try to keep it below 200x mag if you can, sometimes that can be even too much.
  9. Just signed for what it's worth. Im also a mod on another Astro site and posted the petition link on there. 244 signitures, let's hope for many, many more.
  10. I know Sky Watcher dates are American format, I am assuming Celestron are the same. So for tonight, your screen should read 4/18/16. Try that and let us know.
  11. I guess so yes. Like the article explains, if there is persistent AR then it can have a number of AR references. But I guess the NOAA have a very extensive catalogue detailing all AR regions with numbers far bigger than the AR 9999 limit. I like using this website for all things sun / atmosphere ...... http://www.spaceweather.com
  12. AR stands for "Active Region", with which a Sunspot usually is. Sunspots are cooler than the rest of the sun and it is that coolness that makes them a darker colour. I believe the number is just a numbering system, with the 1st one being spotted and confirmed being AR0001, and so on. Just dug this of the web, helps explain the system a little better.... "There is no naming or numbering system for sunspots. There is a system for numbering active regions, however. An active region can contain one or more spots. The National Oceanic and Atmospheric Administration (NOAA) numbers active regions consecutively as they are observed on the Sun. According to David Speich at NOAA, an active region must be observed by two observatories before it is given a number (a region may be numbered before its presence is confirmed by another observatory if a flare is observed to occur in it, however). The present numbering system started on January 5, 1972, and has been consecutive since then. An example of an active region "name" is "AR5128" (AR for Active Region) or "NOAA Region 5128". Since we only see active regions when they are on the side of the Sun facing the Earth, and the Sun rotates approximately once every 27 days (the equator rotates faster than the poles), the same active region may be seen more than once (if it lasts long enough). In this case the region will be given a new number. Hence, a long-lived active region may get several numbers. On June 14, 2002, active region number 10000 was reached. For practical, computational reasons, active region numbers continue to have only four digits. Therefore, the sequence of numbers is 9998, 9999, 0000, 0001, and so on. Active region number 10030, for example, is AR0030. This region will often simply be referred to as region number 30, with 10030 implied. "
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