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Found 159 results

  1. Hi all, was just going through the garage to find something and had come across my dads old Celestron telescope the ,model of the scope says it’s a 21066 wos a. The focal length is 900mm and aperture is 2.3”. Was wondering if any of you knows something about this telescope? I’m guessing it’s not that great. here’s a few pictures of it. Olly.
  2. Greetings, Im new to the realms of astronomy and have just acquired my first telescope; an Orion Skyscanner 100m reflector. I've taken it out a few times using a childrens Ikea table as a mount and attempted some afocal photography using my Canon EOS 100D DSLR camera (without a great deal of success as can be expected!). Though I have a keen interest in astrophotgraphy, Im settling for simply viewing at this stage, with a view to purchasing a good mount in the future perhaps. Currently, I could benefit from a mount that is going to offer me some reasonable stability over a flimsy table that isnt going to cost the earth. Would an inexpensive EQ (such as the Orion EQ-1) be suitable or should I perhaps consider a simple camera tripod or Altazimuth? Any suggestions here would be welcome. And if anyone has suggestions on achieving some basic astrophotgraphy with my prospective equipment in mind, Id like to hear from them. Or if its best avoided entirely (which I highly expect) then Id also like to know. Thanks! Nathan
  3. I ran into this abomination in a local random junk classified ad, seller does not say much other than its a telescope, i have no intentions of buying a scope that looks like it fell form the ugly tree and hit every branch on its way down lol. can anybody identify this scope which certainly only its mother can love?
  4. Over the years I have done a lot of Excel calculation to solve my astronomy problem when I try to make parts work together. Most of them has been my private and only in Swedish, some of them I have published on a Swedish forum and I believe some people have found them useful. Now I decided to translate them into English and put them on my homepage for downloading. It's always hard to understand Excel sheets that others have put together, but I hope that these ones with a little help of the instructions on my homepage could be interesting and useful to some of you. http://astrofriend.eu/astronomy/astronomy-calculations/astronomy-calculations.html Beware that it could be something wrong in the calculations, if I find something I try to correct it. I don't take any responsible of it, you use them at your own risk ! /Lars
  5. ( Edit 20 Aug: adjusted to increase brightness ) ... The Fighting Dragons of Ara ( NGC 6188 ) ( please click/tap on image to see larger and sharper ) ...................... Original: The Fighting Dragons of Ara ( NGC 6188 ) ( please click/tap on image to see larger and sharper ) Bright Nebula NGC 6188 and open cluster NGC 6193 are embedded 4,300 light years away in the Sagittarius arm of our Milky Way galaxy and can be seen with the naked eye south of Scorpius in the constellation of Ara. With powerful stellar winds and energetic ultra-violet radiation, massive stars sculpt the interstellar gas and dust of the nebula into wonderful shapes and cause the interstellar gas to brightly fluoresce. Closer to the hot young stars of the cluster, bright blue “sunlight” reflects off the clouds of gas and dust to produce the blue reflection nebulae seenin the image. Magnitude +5.19, RA 16h 41m 42s, Dec -48deg 48' 46". Approx. 3800 light years away. Image details: Plate Solution: Resolution .......0.586 arcsec/px ( original full size image ). Rotation .......... 89.764 deg. Pixel size ........ 3.90 um. Field of view ..... 58' 41.6" x 39' 9.5". Image center ...... RA: 16 40 09.856 Dec: -48 41 22.50. Image bounds:. top-left ....... RA: 16 42 10.059 Dec: -49 10 30.54. top-right ...... RA: 16 42 06.489 Dec: -48 11 57.14. bottom-left .... RA: 16 38 11.010 Dec: -49 10 39.74. bottom-right ... RA: 16 38 11.897 Dec: -48 12 05.58. Telescope: Orion Optics CT12 Newtonian ( mirror 300mm, fl 1200mm, f4 ). Corrector: ASA 2" Coma Corrector Quattro 1.175x. Effective Focal Length / Aperture : 1410mm f4.7. Mount: Skywatcher AZ Eq6 GT. Guiding: TSOAG9 Off-Axis-Guider, Starlight Xpress Lodestar X2, PHD2 . Camera: Nikon D5300 (unmodified) (sensor 23.5 x 15.6mm, 6016x4016 3.9um pixels). Location: Blue Mountains, Australia Moderate light pollution ( pale green zone on darksitefinder.com map ). Capture ( 24 June 2017 ). 12 sets of sub-images with exposure duration for each set doubling ( 1/8s to 240s ) all at ISO800. 34 x 240s + 10 each @ 1/8s to 120s. Processing ( Pixinsight - 19 Aug 2017 ). Calibration: master bias, master flat and no darks. Integration in 12 sets. HDR combination PhotometricColorCalibration.
  6. Spiral Galaxy NGC 6744 in Pavo NGC 6744 is a Milky Way like barred spiral galaxy in the constellation Pavo. Visible only from lower latitudes, the light we see now left this galaxy around 25 million years ago. NGC 6744 in Pavo ( please click / tap on image to see larger and sharper ) Capture Details: North is up. Telescope: Orion Optics CT12 Newtonian ( mirror 300mm, fl 1200mm, f4 ). Corrector: ASA 2" Coma Corrector Quattro 1.175x. Effective Focal Length / Aperture : 1400mm f4.7. Mount: Skywatcher EQ8. Guiding: TSOAG9 Off-Axis-Guider, Starlight Xpress Lodestar X2, PHD2 . Camera: Nikon D5300 (unmodified) (sensor 23.5 x 15.6mm, 6016x4016 3.9um pixels). Location: Blue Mountains, Australia Moderate light pollution ( pale green zone on darksitefinder.com map ). Capture ( 16, 17, 19 Sept. 2017 ). 9 sets of sub-images with exposure duration for each set doubling ( 1s to 240s ) all at ISO800. 85 x 240s + 5 each @ 1s to 120s. Processing ( Pixinsight - 5-17 Nov 2017 ). Calibration: master bias, master flat and no darks. Integration in 9 sets. HDR combination PhotometricColorCalibration Arcsinh stretch ( function written by Mark Shelley ) Image Plate Solver - NGC 6744 - Sept 17, 2017 =================================== Resolution ........ 0.586 arcsec/px ( full size image ) Rotation ............ 0.001 deg. Focal ................. 1372.24 mm. Pixel size ........ ..3.90 um. Field of view ..... 58' 30.3" x 38' 59.0". Image center ...... RA: 19 09 46.591 Dec: -63 51 13.44 ==================================
  7. My Lunt LS60 is finally back from Lunt where i had it retrofitted from tilt to pressure tuned, haven't had a chance to use it yet due to horrible seeing but for everyone interested i will be doing an in depth review of the new retrofit. I must say though that it certainly looks impressive and tuning seems to be very smooth upon turning the cylinder.
  8. Hello guys as you see i am new in the forums and im starting my stargazing adventure.I want to use my telescope as an astronomical and a terrestrial telescope so preferably a mak or a refractor.My budget is 450 dollars for both telescope and tripod. I already found one good telescope http://skywatcher.com/product/bk-1206az3/ Its the skywatcher 120/600. Let me know if you have any other telescopes.Thank you
  9. Hi Everyone, I'm completely new to this forum and to star gazing. I am struggling with a decision on my first scope. I definitely want to do planetary viewing however i think very soon i will want to start looking at DSO's. I'm also extremely keen on astrophotography and believe i'd need an EQ mount with tracking. I really want to have great views of planets and do not want to see just a tiny blob of light through the scope (seeing permitting) I am looking at the following but please feel free to recommend any others that I may be missing: Skywatcher Skymax 127 Skywatcher Explorer 200p One of my big queries between these two is what affect will the f5.6 to f11 make and will there have to be more adjusting with the explorer. Many thanks for your help.
  10. My image of Omega Centauri ( NGC 5139 ) has been published as the NASA APOD for the 11th of July 2017 https://apod.nasa.gov/apod/ap170711.html Link to full size image on NASA site ( warning quite large - 4620 x 3720 ) Link to discussion of image on asterisk.apod.com ( credit apod.nasa.gov ) ( full size image - 4620 x 3720 ) Link to original post for this image back on the 10th of June
  11. First off thanks in advance. I've been around astronomy my entire life and used plenty of telescopes but never actually got around to building one. I grew up spending a lot of time with John Dobson so I'm very familiar with the Dobsonian and the concept of grinding mirrors etc. I'll likely be building two telescopes. The first as a proof of concept and to actually get it done then a much larger one that will take a lot longer and not be portable. I'm buying a farm and I may actually build an observatory to house it as well. The farm is at 9000ft and should provide amazing viewing. As I intend on building the much bigger telescope second should I build the first one in the same style mount and configuration or do you not see that as a big deal? For the first telescope I was planing an 8" Dobsonian style. I could go bigger or smaller. I'm not concerned about length so I'd take the focal length that makes sense. I could grind or buy a mirror. For the second telescope I have no idea. I'm skilled in construction but I don't want to build something massive just to have it. If there is a simple answer like "you can go up to X inches with this style" or "you'll see incredibly marginal returns after X inches" or "after X inches it gets 10 times as expensive" let me know. My guess is there isn't a simple answer. I'm not afraid to take on too massive of a project and I've got a decent budget. I also have the time to hand grind mirrors etc. I'd assume the first one I'll keep under $1000 USD and the second one I'd be open to finding out what my options are. $10,000 USD isn't a problem but naturally I don't want to throw money away and if something really awesome can be done for more I'd entertain it. Thanks ahead of time and from what I've read in the past that this awesome community has produced. Jastronomy
  12. I came across two company photographs of telescopes during manufacture at the Secretan factory in Paris - anyone know anything about these? Date? Where they ended up?
  13. It's time I thinned out my collection and as such are prepared to let my beautiful refurbed 150 F/8 Frac... 'The Big White One' This beauty is fitted with a dual focuser and has been a wonderful ornament in my gym since I obtained her so is desperate for an airing... It's collection only from South Birmingham I'm afraid because I don't trust the post to care for her like I have... I'm going to let her go for £250 no offers I'm afraid as these beauties don't come up for sale very often! and it really is a lovely instrument! It doesn't come with a finder scope (or the AVX mount in the photo) but the diagonal is included.
  14. Hi guys, Been in to Astronomy / Astrophotography for a good deal of my life. That said with life generally getting in the way with ups and downs, I now find myself in a position where i can really start to get into Astronomy again. What i was querying is that i have a red dot view finder on my Meade Polaris 130MD, What i was wondering is in the images i have uploaded i have a 20-60x60 spotters scope, Can anybody give me some of your advice and wisdom as to how i could use or if possible utilise it on the ring behind my viewfinder, i ask as i have no battery and like a numpty i left it on to die, Forgot to also mention that i use the scope on a EQ2 mount if that helps, I like to try and get some shots of the moon with my D5300, it does enough for what I'm happy with. Any help and information will be greatly received. Cheers Mark.
  15. I looked and looked at countless reviews, forums and "Best Of..." articles every single night for 3 MONTHS, not exaggerating. I wanted to make the best decision and not experience buyer's remorse or wish I would have gotten "that other one" after my purchase. I changed my mind several times; I thought I wanted a refractor...I thought I wanted a Newt...I thought I wanted a dob...I didn't think I wanted a go-to mount...The list goes on. So many choices, so many opinions. And then the light came unexpectedly in the form of yet another random article called "So You Wanna Buy a Telescope... Advice for Beginners". The part that got me says, "Finally, avoid "paralysis-by-analysis." If you spend more than an hour a day reading telescope catalogs, you are probably in this category. Just get something; you'll feel a lot better." After reading that I sat back and thought, "You know what? He's right". So I did. even though I went over my budget I still felt GREAT. My seemingly never-ending search was finally over. Do yourself a favor and JUST GET SOMETHING!! Of course, always do your homework on what your buying first! I settled on the Celestron 8se (not even close to what I originally had in mind). It came in today, and best of all...0 cloud cover predicted tonight! I'm itching for the Sun to hit the horizon as I type this so I can test it out. Best of luck to you all.
  16. So I'm on the lookout for a first scope and I found an advertisement for a Meade 2060 LX6 in my local classifieds for $675 CAD. I tried looking up this particular scope and it seems that it's an older model, so there isn't much to be found in the way of reviews or manufacturer information. Does anyone have experience with this type of scope? Would it be good for a beginner? It's just a little above my price range, considering that I was looking into getting a SkyWatcher 8" dob ($550 CAD). It seems as if the guy is offering a mount a fork mount along with it, as well as some other accessories. Here's the original text of the ad: Clean MEADE 2080 LX6 wide field schmidt cassegrain telescope with Meade wedge (with fine tune knob), heavy field tripod (large enough for 10"), Meade LX6 quarts drive fork mount with Hand box and Meade dec motor installed, 8x50 finder, piggy back mount and choices of either a celestron visual back and diagonal (1.25) plus a Vixen 20mm NPL eyepiece or Celestron Plossl 26mm. OR a Meade 2" hybrid back with 1.25" insert one one of the above eyepieces and front cap. Note: front cap does not sit fully as I have replaced the collimation screws with knobs for easier collimation. I can put the original screws back in for you but you collimate. The inner coating on the corrector plate is faded in one section from a cleaning years ago. No idea why that happened but dos not effect viewing so never bothered me. The LX6 line-up was designed with a bright f6.3 Multi coated optical group (1280mm fl) as opposed to the usual f10 2100+/- set ups in most 8" sct scopes. These were designed for brighter, wide field viewing where nebulae, star fields and the like were more targeted than high-power planetary viewing and are great for imaging purposes. That said, lots of aperture for higher power eyepieces and the Saturn rings are easily made out even from my part-country location at 26x or more. Venus in phase is brilliant (it is in phase now with a lower crescent position.) $675 for set up 1 and $775 for set-up 2. These are not toys. This is not a goto. Also includes Meade travel case and literature. Located 1/2 hr west of NewMarket. Thanks.
  17. I got a few recommendations from Sky Watcher that seemed reasonable: http://skywatcherusa.com/ed-apo-refractors/proed-doublet-apo-refractors/proed-80mm-doublet-apo-refractor.html http://skywatcherusa.com/maksutov/sky-watcher-maksutov-cassegrain-102mm.html http://skywatcherusa.com/maksutov/sky-watcher-maksutov-cassegrain-127mm.html The 80mm looked fairly tasty but I don't really know if a refractor is the right choice for the AllView. I really wanted to step up to the 100mm refractor but it is to long for the mount. Sky Watcher indicated there may be a competitors 100mm that might be short enough but... isn't the 100mm designation the width of the tube or the length of the internals? Could i find a better choice than the ones listed or should I just pony up for the 80? For that matter I dont even know if the 127mm Mak-Cass would be the better choice. I want to be able to see as far as possible. I want Saturn's rings, the great spot of jupiter, and potentially some galaxy, nebula or whatever is reasonable for that telescope. Some fov would be nice but I am beginning to gather that that is a trade off. I made a questionable purchase of the AllView, pleasse help me maximize it's usefulness. thanks Jonathan
  18. over here all i can find is Meade, Celestron, and Orion. now i have seen yall mention your love of Vixens and TAL's are they readily available in the US? with out a HUGE import tax?
  19. Tarantula Nebula ( NGC 2070 ) in the Large Magellanic Cloud ( LMC ) Re-processed to tweak colour balance and bring out a little more faint detail: New version: Original: ( click/tap on image to see full size - the above compressed version looks a little soft; the full size version is sharper ) The Tarantula Nebula ( NGC 2070 ) is the largest and brightest emission nebula in the nearby irregular galaxy, the Large Magellanic Cloud ( LMC ). At a distance of 160,000 light years away from us, the Tarantula Nebula is so bright that it would cast shadows on the Earth if were as close to us as the Orion Nebula in our galaxy. First image with new telescope and autoguider/setup. Links: 500px.com/MikeODay photo.net/photos/MikeODay Details: Nebulae: NGC 2070 Tarantula Nebula NGC 2048 NGC 2060 NGC 2077. Open clusters: NGC 2042 NGC 2044 NGC 2050 NGC 2055 NGC 2091 NGC 2093 NGC 2100 Image centre RA 5h 38m 57.3s, Dec -69deg 20' 36.6" (nova.astrometry.net) Field of view (arcmin): 58.7 x 39.2 Scale (full size image) 0.585 arcsec/pixel. Telescope: Orion Optics CT12 Newtonian ( mirror 300mm, FL1200mm, f4 ) Corrector: ASA 2" Coma Corrector Quattro 1.175x Effective Focal Length / Aperture ): 1410mm f4.7. Mount: Skywatcher AZ Eq6 GT Guiding: TSOAG9 Off-Axis-Guider, Starlight Xpress Lodestar X2, PHD2 Camera: Nikon D5300 (unmodified) (sensor 23.5 x 15.6mm, 6016x4016 3.9um pixels) Filter: none Exposures: 14 x 240 sec ISO400 12 x 120 sec ISO400 10 x 60 sec ISO400 11 x 60 sec ISO200 10 x 60 sec ISO100 10 x 30 sec ISO100 Pixinsight & Photoshop 20 December 2016
  20. Hi guys I am looking to purchase a beginners scope for my Dad’s Christmas present (I’ll be honest it’s also a present for me!) I have done a bit of research online and I thought I had the ideal one to get started. The Celestron Astromaster 130EQ MD (£149 Amazon.co.uk) Until I found this: Skywatcher Explorer-130M 130mm (£193 Amazon.co.uk) I was hoping you guys could enlighten me and let me know what one to get out of these two? Will I be able to view things like long distant moons and Saturn’s rings? Or even a ‘local’ Nebula? Also when looking into the Celestron 130EQ MD I was recommended into purchasing the ‘Celestron 94307 AstroMaster Eye Piece and Accessory Kit’ (£58 Amazon.co.uk) to get a better view. Will I be able to use this eye piece kit with the Skywatcher 130M? As it is getting near Christmas now I will need to buy one very soon. One last thing - Ive seen mixed opinions online about the quality of the mirrors in both scopes. Does the Celestron 130EQ MD have a better scope to the Skywatcher 130M?? Are they spherical or parabolic? What one do you think best for my money?? Thanks in Advance! Rhys
  21. I'v been interested in astronomy for a while and i am about to purchase my first telescope and have decided between 2, i'm not very good with the technical side of them so would like some advice on which would be better for me. I have copied the spec of each one from the website which is on currys, i appreciate any feedback.MEADE Polaris 114 EQ Reflector Telescope - £109.00Magnification 158 x Magnification 2 111 x Objective lens diameter 114 mm Eyepiece 1 6.3 mm Eyepiece 2 9 mm Mount Equatorial Coated optics Yes Waterproof Yes Fog proof No Box contents - 6.3 mm eyepiece - 9 mm eyepiece - 26 mm eyepiece - Barlow Lens x 2 - Accessory Tray - Autostar Suite Astronomy DVD MEADE Polaris 130MD EQ Reflector Telescope - £149.99Magnification 103 xMagnification 2 72 xObjective lens diameter 130 mmEyepiece 1 6.3 mmEyepiece 2 9 mmMount EquatorialMotor drive YesCoated optics YesTracking rates LunarBox contents - Meade Polaris 130MD Reflector Telescope- Eyepiece 6.3 mm x 1- Eyepiece 9 mm x 1- Eyepiece 26 mm x 1- Barlow lens x 2 - Electronic RA motor drive- Pre-assembled tripod with accessory tray- Autostar Suite astronomy DVD
  22. Yesterday i viewed jupiter with my celestron astromaster 130eq telescope with 10mm eyepiece..the planet looked very small but could could see clearly but i want to see enlarged ...what eyepiece can i use.. or my telescope capacity is only this much?
  23. Hi there, I currently have access to a Skywatcher 200p and am loving it although imaging is a bit tricky with it for deep sky objects. However I will be losing access to it later this year. This obviously means I need to reach into my pockets and buy something for myself. My main aim is to photograph the Messier list of objects which means I need some sort of tracking scope setup. My question is which one...? I'm not looking to break the bank so preferably something under £1000 but if that isn't possible then I could go a little bit higher... Portability would be useful but not an absolute must. I currently have a DSLR so that would need to be able to be fitted to it as I can't quite justify buying one of the proper sky cameras at the moment. Any advice would be greatly appreciated. Thanks Simon
  24. Hi guys, I don't know where I should post this exactly, but I need a bit of help identifying a telescope. Picture attached. Thank you for your tips.
  25. I've been asked on a number of occasions, how I managed to do planet astrophotography with a manual Dobsonian telescope. So I have created a tutorial, to help fellow owners create a worthy image. I hope it makes sense and you find it useful. Dob AP Tutorial.pdf
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