Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

sgl_imaging_challenge_banner_lunar_landings.thumb.jpg.b50378d0845690d8a03305a49923eb40.jpg

Search the Community

Showing results for tags 'help'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • Welcome
    • Welcome
  • Beginners
    • Getting Started General Help and Advice
    • Getting Started Equipment Help and Advice
    • Getting Started With Observing
    • Getting Started With Imaging
  • Community
    • Official SGL Announcements and Events
    • SGL Challenges and Competitions
    • SGL Star Parties
    • Star Parties & Astro Events
    • Celestial Events Heads Up
    • The Astro Lounge
  • Retailers
    • Sponsor Announcements and Offers
    • FLO Clearance Offers
    • Supplier Reviews
  • Astro Classifieds
    • For Sale / Swap
    • Wanted
  • Equipment
  • Observing
  • EEVA (Electronically Enhanced Visual Astronomy)
  • Imaging
  • Science
  • WADAS's WADAS Discussion Forum
  • Beaufort Club's Topics
  • Swindon Stargazers Club's Topics
  • East Midlands Stargazers''s Topics
  • Central Scotland Astro's Topics
  • SGL Cumbrian Skies's Topics
  • Herts, Beds and Bucks Group's Topics
  • SGL East Anglian Group's Topics
  • South Leicester Observers's Topics
  • South Wales Group's Topics
  • SGL Surrey Observers's Topics
  • South Yorkshire Stargazers's Topics
  • Yorkshire Astronomers's Topics
  • Devon and Cornwall's Topics
  • West Midlands's Topics
  • Essex Cloud Dodgers's Topics
  • Essex Cloud Dodgers's New equipment
  • NLO and Planetarium's Topics
  • Astronomical Society of Edinburgh's Discussion
  • Dorset Stargazers's Topics
  • Hairy Stars Club (Comets)'s Tutorials and Guides
  • Hairy Stars Club (Comets)'s General Discussion
  • Hairy Stars Club (Comets)'s Observing Campaigns
  • Hairy Stars Club (Comets)'s Analysis results
  • Hairy Stars Club (Comets)'s Useful Links
  • Pixinsight Users Club's Pixinsight Discussion Forum

Calendars

  • Astro TV
  • Celestial Events
  • SGL Calendar
  • Astro Society Events
  • Star Parties
  • WADAS's Events
  • Beaufort Club's Events
  • Astronomical Society of Edinburgh's Events
  • Dorset Stargazers's Events

Blogs

There are no results to display.

There are no results to display.


Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


AIM


MSN


Website URL


ICQ


Yahoo


Jabber


Skype


Interests


Location

Found 80 results

  1. So, I have gone and got myself a Skywatcher Star Discovery 150p, which has so far proved to be a very good little scope and I've had some very good results. I have now got the bug for imaging and have gone out and got myself a second hand Nikon D5100 and verious other equipment needed to do this, only to now find I can't get Prime Focus!!!!!!!! So the only way I can image is using a barlow x2 which obviously changes the F ratio from F5.5 to F11 slowing everything x2 this isn't to bad for planetary imaging but for DSO images not so good!!! After searching through lots of videos on to do this all I can find is...... I can either butcher the standard rack and pinion focuser that's fitted on it by cutting it down and rethreading it or by moving the primary up by 20-25mm, which seems a shame to do a brand new scope still under warranty! The only other option I have come up with is changing the focuser to a Skywatcher Low Profile Dual Speed Focuser For Newtonian Reflectors. Could anyone out there shed any light on this before I spend another £130 on the new focuser. Thanks
  2. Sooo after coming back from holidays(have been gone for a month and a half) i discovered that i had forgotten to use the lens caps to protect my Panaview 32mm from dust.... turns out, its dirty.Me having no idea what a "multiple element lens eyepiece " meant , learnt the hard way. I unscrewed the bottom part of the eyepiece and 2 lenses and a tiny ring came out... not knowing in how to put them in, tried a bunch of different ways, and still the eyepiece view was still bad.(couldnt even focus on daylight objects) after messing with it for a bit 3-5 more lenses came out. Now my 100$ eyepiece is totally screwed up and i have No idea how to fix it. I m panicking so much and i have absolutely no idea what to do. I hope i ddnt screw the lens up... if anyone thinks they can help me, i m gonna make a system in which you can tell me how to put the lenses back So lets name the first group of parts depending on their place from left to right : A(The first lens ), B(the ring) and C( The Thrid lens) , now, these i have no idea how to place them correctly (have in mind that A Is curved , if it gives you any information) The next 4 pieces you see are D(The thick ring), E(The big lens) F (the other ring) and G(the final lens) Here is a picture of each piece from both up side and bottom side First will be up and second would be down If anyone could give me instructions to as how i can put everything back together , i would be greatful (Uploading pictures in a bit)
  3. Hey guys! Its been 8 months since i ve started the hobby of astronomy.I would like to dig deeper now,i am looking for a book in astrophysics that involves mostly formulas and mathematics.With so many books in the market its hard to defferentiate science books from just books with information about the subject Thanks! -Kronos
  4. Hi, this question has probably been done to death here, but can I ask the community to help me decide on a new camera? After struggling with my very glitchy QHY5LIIc camera for a while, as well as having a forced break from astronomy, I have decided to get a new camera. After all the problems I've been having with the QHY, I really don't want to use this manufacturer again. I know lots of people use them quite happily, but once bitten ... I have been looking at the ZWO cameras - OSC, as I haven't the time, clear skies, or patients to do LRGB imaging! I have about £250 to spend, which I may be able to push to £300 if I wait a bit. ? So I've been looking at the ASI224MC, ASI290MC and the ASI178MC cameras. I mainly do planetary/Luna imaging, but I have also dabbled in a bit of DSO and would like to continue with both. I have a C9.25 and a ST80 guide scope. I know these aren't ideal for DSOs but please humour me! I think from the specs/information that the 224 is probably the best option. Although the resolution and QE are the worst of the three, the well depth and read noise are the best and the fps is pretty good too. I don't know if there are better/cheaper cameras using the same chips, such as Altair's range. I just don't want to make the same mistake that I did with the QHY!n Any help/advice you can give will be much appreciated.?
  5. Hello everyone, As you can probably tell I’m brand new to the community. While I’ve been passionate about space related topics for my whole life, I’ve finally taken the leap and I’m about buy a simple astrophotography rig. Ive done a fair bit of research and, like many, I’ve decided that the William Optics Zenithstar 61 APO refractor is best suited for my situation. I plan to use my canon 600D/T3i as the main imaging camera and I also plan to use the Skywatcher Star Adventurer as a tracking mount for this scope. However I have a few questions: 1: I seem to be confused about how I should connect my DSLR to the Z61. As far as I’m aware, all I need is a T-ring and the WO Flat 61 Field flattener and I should be good to go. Is that correct? 2: will I need a dovetail bar to mount the Z61 to the star adventurer? Or can I directly mount the z61 to the base of the star adventurer? (This was demonstrated by Trevor Jones from astrobackyard with his Z61 and the ioptron Skyguider Pro.) Sorry for such a long thread; I’d just hate to finally get all my gear together and find out that some gear is incompatible. Thanks for the help!
  6. Hello all, I have just joined and have been looking around, and putting in various searches to find the answer to my question(s). I have already found some valuable information, but i can't find a specific answer to a question i have relating to exposure times. I have shot the milky way several times before, from a tripod and a wide angle lens. I am aware of and understand the "500 rule" and that worked fine for me at first when i was shooting with my Canon 6D Mark II. When i moved over to the Sony A7III i noticed significant trailing using the same rule and that led me to the NPF rule (Via the photopills app incase people dot know). I am heading back to Tenerife once again in about 6 weeks time and want to buy a star tracker so i can get some really detailed images. I have done a fair bit of research and in principle, the whole thing doesn't seem to be too daunting or difficult. I have purchased the Polar Scope Align Pro app so i can align Polaris as accurately as possible, i will practise putting the unit together and familiarising myself with the different parts etc, but it is the exposure times that i do not understand. My best glass is the Carl Ziess 50mm F/1.4 Planar, the 18mm F/2.8 Batis, the Sigma 35mm F/1.4 Art & the IRIX 15mm F/2.4 Blackstone. I currently do not own, nor have i ever used a tracker, and I cannot find any information relating to which aperture, ISO and Shutter length any of these focal lengths should or could be shot at. Is there anything similar to the 500 rule or NPF rule that relates to using a tracker with varied focal lengths? or is it just a case of stepping the lens down for sharpness and then trial and error? Thanks in advance, Matt.
  7. Hey guys,im currently on a school trip and brought my celestron firstscope with, tonight we ll be trying some dsos and maybe saturn and jupiter,the telescope itself is not collimated and dirty (on the mirrors)So I wanted to ask.in the scope, there is no primary adjustment screws,only the ones to take it off .Does that mean that its set , allowing me to take it off wash it and back on without having to recollimate the primary? Thanks Kronos
  8. This is maybe my 3rd attempt at a galaxy and I am trying to figure out the best way of doing it since I live in a red zone of London suburbs. I took this over 2 nights (well, 1.5 really, as my guiding wasn't working and plate solver wouldn't comply after meridian flip...) with my 8" EdgeHD SCT with 0.7x reducer and Atik 490X. Around 20 Luminance subs at 10 mins each (1x1) and around 15 RGB subs at 5 mins each, but binned 2x2. I use Astrodon filters but also have an LP filter permanently in my image train. Question: should I only use RGB and create a synthetic L channel, given LP, or continue trying with the actual luminance? Gradients are horrible with luminance but RGB doesn't have as much detail (only red filter seems to be more sensitive). My stars are all over the place (colours pop out everywhere, in the wrong way), how can I control this better? Also, as I wrote, the red filter seems to have much more detail than the rest and when I add all the channels into PS, the red colour just overpowers everything (and in general, how can I keep the star colours as they are and not have the red and blue go crazy - I am not sure the name for it, but it looks like chromatic aberration on steroids). Any other general tips would be great... Thank in advance. GFA PS: I cheated with the core: just changed the temperature to make it look a bit more glowy; for some reason, I barely had any yellow colour from the data...I will post stacked images, if of interest.
  9. Hey guys!i need to make this quick! I want to get a new 6mm eyepiece.I have a 8" f6 dob and i want to get a nice 200 mag and put the telescope to its limits at 400x The most i ve seen with is 240x for Jupiter and Saturn .i ve heard they looked stunning at 400x and i am keen on trying it.Ive got my eyes on a 6mm Skywatcher UWA eyepiece.and i have a Bst Starguider 2z Barlow lens.And i seem to be having problems with my 8mm Bst Starguider (300x in total).the bst has a 16mm eye relief and a 21mm lens diameter,but when i barlowed it and look at the moon yesterday,it was hard finding the right spot to look through the eyepiece and when i moved the image disappeared.I dont know if it will have that effect on planets,when I looked at mars it was fine but i definitely want to avoid that from happening again.Will it happen? The Skywatcher eyepiece i want to buy has a 16mm eye relief too.I dont want to make the same mistake now , i want a 6mm eyepiece at the price range of 50-70 euro either from flo or amazonuk.If the Skywatcher will have similar results,can you suggest another one?
  10. National Geographic 90/1250 maksutov is my telescope and thanks for all the replies and support of my previous post it helped me alot and i figured out how to see the moon for example in beautiful quality but there's the problem i have. I can only see good views and a sharp sight of the moon but that's about it. Do i need a better lens that can zoom even more out or is this the limit of my telescope? Please let me know if you know a solution to this.
  11. Hello! I have some questions about what accessories to get for my Celestron Nexstar 4se. Keep in mind that this'll be my first telescope and I'm really excited to see the moon and planets like Jupiter and Saturn! I looked for starter guides on which accessories are a must but I didn't find any. Will I need specific eye pieces (I know nothing about eye pieces and which ones are better, etc.) to see some planets clearly? I'm fairly new to astronomy so any helpful tip would be great! Thank you
  12. Probably a stupid question... Heyyy soo i am a begginer and about to buy my first telescope.A Skywatcher 200 p. I ve just though of something , Since i know filters can be stacked i ve been wondering if i could take visual RGB filters and stack them.Specifically blue green and red in order to create a visual full colour image ,like photography. I know its probably a stupid question because people all over the world would have done this by now .But i m just curious. -Kronos
  13. Hello. So i am very new to the world of astronomy and i just want to stargaze. I would like a telescope to look at the Moon in decent detail and maybe some other planets too and some stars too. I type this to get some help. Below i have multiple options for telescopes. I am on a strict budget, under $50 and i want a telescope that just does the job. i do not need any extreme scope just one that'll do the things mentioned above. Here are the options: http://www.ebay.co.uk/itm/360-x-50mm-Reflective-Monocular-Astronomical-Telescope-Space-Spot-Scope-Tripod/132194688993?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D555018%26algo%3DPL.SIM%26ao%3D2%26asc%3D43781%26meid%3D9616727f6af84b67ad88a06df4fed9bb%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D152515267398 http://www.ebay.co.uk/itm/Performance-700-76-Reflector-Astronomical-Telescope-NEW-UK-FAST-DELIVERY-/191464648175?hash=item2c942eadef:g:6gEAAOSwBahVaDII http://www.ebay.co.uk/itm/900-60-Reflector-Astronomical-Newtonian-Performance-Telescope-60x900mm-Silver-/262966529588?hash=item3d3a06ce34:g:QRMAAOSwurZZNgwR Which one of those will be the most suitable for me and which one would you recommend. BTW, i live in Birmingham, UK.
  14. Should I take an old Skywatcher skyliner 200p for €200 Or a new one for ~€300-400? the old one is black(not a flextube) which should I take?
  15. Eventually, due to "dark energy", the universe will be expanding so quickly that it will break the speed of light. This, if I am not wrong, already happened at the beginning of the universe for 10 to the power of -43 seconds. So, what will happen once the universe is expanding at that speed. Will the laws of objects moving faster than the speed of light apply (mass increasing, time slowing down ect.)? I have to stress I am my no means an expert on the matter, if anyone could point out mistakes in this question please do. All answers would be much appreciated.
  16. Good morning everyone, Just to start out, a little about me: I'm US Navy stationed in Sicily, Italy, originally from lower Alabama. I've always been an Astronomy geek, pointing out the stars and planets to friends at night....nothing beats a calm, windless, clean night out in the middle of the ocean. Other than what I've picked up over the years sky watching and reading, I've recently finished up my second semester of Astronomy so I have a decent understanding of the sky....but I know bare minimum about telescopes. I never owned my own telescope and it's been a while since I've looked through one. I did some research and almost bought an entry model celestron a few years bac, but didn't. I like to consider myself beyond beginner, so I'm looking for an intermediate level scope. I've done several telescope finders and seen several reviews. On a budget of under $1,000, but would rather stay closer to $500. I want to see the moon yes, but more interested in the planets and deep sky objects. I will be traveling with it...by traveling, I mean driving about an hour or more to get to a nice dark field. With that I've eliminated a dob, as an option. I'm looking for something that will fit in my car, and a grab n' go/no hassle. My main question is does a newtonion/reflector type require much maintenance? like if I pack it up and drive to spot am I going to be fumbling with it in the dark, trying to get a clear picture? I really want something no-hassle and spend more time viewing than aligning. The reflectors get more aperture for the money over refraction type. Astrophotography is possible, once I get more comfortable and can afford it, ill get a mount, but other than that a simple iPhone snap will suffice. That brings me to my next point, I'd like to explore and would rather spend the money for a good view, than the motorized mounts. Are the motorized mounts really worth it? I also planned on getting a eye-piece/filter kit. So, I've narrowed it down to the Celestron Omni XLT 120mm- the entire Omni line keeps popping up best reviewed/high rated lists; The Orion SkyView Pro 8". Like I said I also plan on getting a filter/eyepiece kit. Any other options or are these good?: no-hassle, decent deep sky/good planet view, $500-$1000 budget (including eye-piece kit), fit in a car. It's my first telescope, so I want the best bang for the buck, not a beginner scope. I'm an adept learner so I'm not scared off by non-computerized mounts (and I want to learn to use without it). Thank you for the help!
  17. So I am very new to gazing the night skies and I have a very important question about equipment / lenses for what I'm trying to do. PLEASE keep in my that I have tremendous respect for the entire universe (whatever and however I may see it, it's just amazing) but my preference in my new hobby is just to view the Planets & our Moon. I'll start off by first saying that I bought the Celestron 8se Goto Scope (8") from Amazon along with 8mm to 24mm Baader Planetarium zoom lense, 2.5x & 3x Barlow lenses and a new Telrad finder scope. I spent over $1,800 and tried for the past week in the evening under clear night skies viewing Venus & Mars. Then at about 4:00am to 6:00am in the morning viewing Jupiter. In all cases for the past week and a half Mars, Venus & Jupiter were clearly seen and they were correctly centered and focused in my eyepiece. I had no success in seeing any features on either planet with using 6mm up to 24mm lenses (with and without the Barlows). I did see Jupiter focused and managed to see three moons. However, very in focus but still just no features! Obviously, the Moon was seen with great features in every case. (Simply incredible for the first time!) So of course I hit the Google button and searched this forum for hours! I ended up sending everything back to Amazon for a refund. I know by this point you must think I'm very impatient but 95% of my search results stated that I do not need an 8" scope or this type of scope just for viewing the Solar System if I'm not really interested in viewing Deep Space objects (which is my current preference). And I pretty much don't need the Goto features of the 8se (which is very difficult to allign anyhow) as I can easily identify any planet and of course, the Moon in the night skies. For the money I spent, I was really hoping to see alot more than just focused colored circles. However, it was very cool just knowing I was viewing these planets for the very first time but not worth the $1,800. Finally, the reason for this post is to ask the more experienced Astronomers to recommend the best sensible telescope / lenses to purchase for just viewing Planets. Thank you in advance for any help and taking your time to read this as I'm very anxious to purchase something new this week. (I got back my $1,800 but I'm not looking to spend it all, lol) Please, give me your best recommendations!
  18. I've had my telescope (the Galileo G-872 refractor) for several years now and have been able to view planets in quite a bit of detail such as the rings on Saturn and the red spot on Jupiter. But recently every time I have tried to focus in on any planets (I've tried Mars, Jupiter, and Saturn) all I get are big grey dots. I am still able to focus on the moon with great detail but the planets still remain to be big grey dots. I have tried several times over the past few weeks in all different conditions and locations, I've cleaned the lenses, I've tried all of my different lenses and attachments and nothing works! I would really appreciate some help from someone who is maybe a bit more experienced in these matters than I.
  19. I am looking at buying an older 1993 version of this model and wondered if anyone had any comments on its performance. Does it have autostar, I don't think it has gps but can you fit one in the way you can for a camera. are the optics good
  20. I only just got my telescope and have not yet had a clear night sky but during the day i can see light through the telescope but when i add the erecting eyepiece, the view goes black. anybody know why???
  21. My Orion Starseeker IV mount has recently started acting weirdly in that it will continue to spew even after the movement buttons have been released, this will then render all buttons on the handset useless as nothing will work until it is switched off and on again. I contacted Orion and they claimed it may be faulty optical encoders but they haven’t yet replied on how I can fix it and I don’t really want to pay too much to fix it. Does anyone have any ideas on how I could fix it myself?
  22. Hello! I recently bought a Vivitar 76700 on a whim because it was on a sale. I've been able to get it to work alright, but was having trouble viewing the moon because of its brightness, so I ordered a moon filter. In doing research I found that 1.25" is the most common and it seemed that's what would fit mine. It arrived today and in trying to test it, the moon filter is too big to be compatible with any of the eyepieces/tubes. I have googled endlessly and 1. cannot seem to find any smaller moon filters or 2. find any explanation for why it doesn't fit the eyepieces that came with the scope, or really any extra information on the telescope. I know that most of the reviews say this model is not great, but I'm not using it for anything serious. Like I said, bought it really cheap on a whim. I'd like to be able to use this moon filter and not have to return it or get a new one. I read a review that said this telescope model is compatible with 1.25" eyepieces but I don't see how that could be the case because the 1.25" moon filter seems too big for any part of the viewing apparatus. Does anyone know anything more about this particular telescope? Or if there is some kind of adaptor I could use to make this work for me? Thank you!
  23. This is kind of dumb, but so am I. I've noticed that some people have a little signature or excerpt that is always at the end of every post describing their telescopes or equipment and wondered how I would add one. Excuse my ignorance, I am very new to this site
  24. I live in south Wales valley so what planisphere do I get
  25. Hi, Everyone could with a little advice on connecting a my Synscan v4 to my laptop. I now how to do it and also know about USB serial adapters, what i am wondering is my laptop has a RJ11 coms port but in the Synscan V4 Manual it says you need a RJ12 port as the cable supplied is RJ12. The RJ12 cable fits into the RJ11 perfectly Is there much difference in these and could i still connect using the method or do i have to go and buy the USB serial adapter? if anyone can shed some light on this it would be greatly appreciated. Thanks
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.