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Everything posted by PlanetGazer

  1. I have a similar thing on the 10inch SW, i thought that if you remove the 1.25 inch adaptor, you are left with the 2 inch default opening.
  2. Shouldn't the 12 " dob show better views of the planets? I have experienced similar problems with my 10 inch dob against the planets, but after leaving the scope to reach surrounding temperature and observe it while it's at an appropriate angle, I managed to get acceptable views, though not as beautiful as the views I get with my 130 scope. Wonder if the focal ratio has a say on planets?
  3. In a plastic cover, in my office. Far away from children as possible.
  4. Hahaha on the same boat, I was looking at dual speed focusers yesterday, and have already bought a RACI finder, I use the dot sight from the 130 on the 250 as well. I just searched the Lacerta focuser you mentioned and I'm glad that I finally found an upgrade rather than a full focuser change! Thank you In addition, got a UHC filter for DSOs that I'll try on my next session. and thinking of getting a focus mask.
  5. Personally I find either stellaruim or skysafari have the best features. Try skysafari free version, it will recommend best views for each night depending on your location. May I ask what telescope you have/used?
  6. I Admire your commitment! Would love to hear what tips/tricks worked the most for you
  7. Interesting to hear we had the same choices! Wonder what you think of the upgrade and what have changed for you so far, that could be a different topic though.
  8. Try aligning the finder with the scope during day. For GoTo alignment, maybe planispehre or astronomy map will help you navigate the stars that you need to align to. Also, I recently found out that the GoTo have an option of turning of the star filter, so you can pick stars, in-case your observing site is restricted. Otherwise try to use the filter as it recommends stars for optimum alignment. And yes Saturn is stunning, try Jupiter and its 4 moons
  9. I share the same feeling sometimes, just discouraged to take my 10 inch dob outside, or spend too much time to set my EQ mount for the other scope.. Not to mention the hot weather here. I was wondering if a binoculars will be a good solution for those nights. If I use it and calm, I may be encouraged to bring a scope, or maybe not. On another note, observing partners do get me encouraged, even if they are not helpful! Every weekend, for the past weeks, I get back from work, ready up the set, do 3 flights of stairs to carry my 3 scopes to the car+accessories , drive an hour to meet up with the party and stay until 3 AM It's tough but worth it, It was only me for years, now we are 5. The hardest part is going back home late wanting to go straight to bed, but realise I have to carry everything upstairs
  10. Thanks for sharing! Just found other courses that are astronomy related, if anyone is interested.
  11. My next mission before the end of the week, Thanks! Indeed, the ecliptic plane is well positioned most seasons, in my location. I took a group of people, not interested in astronomy, and they were impressed with the views of Jupiter and Saturn (SW 130), now they'll bring their kids to observe! As for the temperature difference, I was thinking of getting a fan for the 10 inch, but then I thought it's the temperature difference between (and correct me if I'm wrong) the mirror and the the surrounding air that cause the tube currents. The scope is stored in a cool and dry room (my office), and just before packing the mirror should be very cool, and AC is on in the car until reaching the observing site. Then I'll have to wait for aperture to reach equilibrium with the surrounding warmer temperature. It's the opposite over here, outside temperature is higher than home temperature. It makes logical sense, thanks for the help!
  12. If that's the case, then waiting to learn one of them first could be a better option. For both the budget and your patience
  13. Good question, can't wait to hear the replies. I've read that there are special DSLR made for astrophotography named D610 Nikon . Not sure about it though, and it's pretty expensive.
  14. Turn Left at Orion is a famous book, and in it, the writer instructs not to clean the mirror at all
  15. As mentioned in previous posts, you are looking for freedom find feature in a GoTo telescope. I have a 10 inch Dob GoTo, and it has the freedom find, you can manually move it and still it would track and slew to objects. This page explains the freedom find feature: http://skywatcheraustralia.com.au/knowledge-base/ Note that GoTo alignment is not straightforward and will require some time for reading the manuals to understand how to align it and make it work.
  16. Do you find any problems when carrying the 130ps? 2 flight of stairs, at least, is always necessary.
  17. Yeah I wasn't satisfied with the photos uploaded as well, the doughnut wasn't as clear as I wanted it to be. I knew the cross-hairs did not coincide, but I was focused to get the hole centered in the doughnut. Do I have to keep adjusting the primary for the cross-hairs to align? or do I need to adjust the secondary. I will post another picture with the focuser extended. I had a problem before when trying to focus with my 250p, planets were high, I tried using my old SW 130 f/6.9 and the planets looked crisp clear, could have been the collimation or mirror temperature. I was also worried it could be something wrong with the optics. But tonight, I managed to get acceptable views of Jupiter and Saturn, I left the scope outside for an hour to avoid temperature difference, and with today's collimation, it may not be perfect, but it was a noticeable improvement from what it was before, (could have collimated it before with tubes not fully extended). Though I'm eager to perfect the collimation. I have done the star test on AlTair, and it seemed ok to me. Another question comes to mind, is atmospheric turbulence more noticeable in low focal ratio scopes? or is it related of how well collimated the scope is? As I noticed that my slower scope show better views of Jupiter when low in the sky, than my fast scope (250p). edit: Typo
  18. Good Afternoon I have been trying to get my SW 250P (f/4.7) to the best possible collimation as I couldn't manage to focus on any of the planets so far. I just collimated the scope to ready it up for tonight's session. Your feedback is much appreciated!
  19. Welcome FileraBe I'm sure there are great non light-polluted sites in Switzerland. Enjoy the Sky
  20. I have been fiddling with both on android, and I'm leaning more towards SkySafari now. On it, you can set the limits of brightness magnitude for stars and DSOs which will reduce the congestion on the map, more functionality and options. But still, I prefer the general look and navigation of Stellarium. Tempted to have both
  21. Why not use something like this battery and the adapter in the second link? which I assume have more capacity https://www.amazon.co.uk/Sealed-Lead-Acid-Rechargeable-Battery/dp/B002S4T0F2/ref=sr_1_3?keywords=Lead+Acid+Battery&qid=1566424113&s=gateway&sr=8-3 https://www.amazon.co.uk/Battery-Cigarette-Lighter-overload-protection/dp/B01CDUU536/ref=sr_1_3?keywords=battery+to+car+adapter&qid=1566424150&s=gateway&sr=8-3 I use a similar battery with a different brand (cheaper locally), and no problems so far. Though it's for the best if you wait for more comments on this, as I'm only a beginner.
  22. At which focal ratio do you usually start needing a coma corrector? Sorry for going off topic
  23. So I'm referring to the main astro-softwares that you use during your sessions on your phone or tablet, and found that most of people use mainly those two softwares on their phones. Laptop versions of the software are different products and are not the focus of this topic. So which do you use and why? My experience: I personally have Stellarium plus, and the free version of SkySafarai, so I have an understanding of how the user-interface of both works, I have been researching the extra features in the SkySafari Pro, and have figured the following so far (please correct me if I'm wrong): * I'm aware that both let you control your GoTo telescopes * I personally find current version of Stellarium to be more user friendly and easier to navigate the sky manually , could be the configured settings though * SkySafari has more options to the search bar, e.g. "Tonight's Best" based on your location, also a menu of Messier catalog with a highlight of those currently visible at your time and location, others like best deep sky objects * SkySafari has this wonderful feature of creating an observing list, very helpful to plan your session and share and download with/from others * Stellarium Plus has a database of around 1.69 billion stars,while SkySafari 6 Pro has around 100 milion starts (don't think it's important as most of them aren't visible in amateur telescopes, I think I read somewhere that only 25 million stars are possible to observe with our telescopes, up to 15th mag, wonder if any of you have tried to push this limit)
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