Jump to content

740427863_Terminatorchallenge.jpg.2f4cb93182b2ce715fac5aa75b0503c8.jpg

Erik1988

Members
  • Posts

    27
  • Joined

  • Last visited

Everything posted by Erik1988

  1. I would definitely recommend the Orion starblast 4.5 inch reflector . It is a great easy to carry, light telescope with decent aperture to see nice details on the moon, you can even see Jupiter ,it's stripes, the Great Red Spot, and a few of its moons. Venus, Saturn, and Mars are great view as well! Best of all it doesn't break the bank at around $180-200 , it comes with a 17mm and 6mm eyepiece. I recommend getting a better 6mm eyepiece with more eye relief, and wider field of view to avoid frustrations early on keeping a target on track and getting tired from the short eye relief.
  2. A German equatorial mount is required for serious astrophotography to allow tracking in right ancension and declanation if the case may be. You also need a mount wi the capability to track dsos at the sidereal rate, and a off axis guider or second guidescope to manually guide the telescope with a illuminated reticle eyepiece so that you can correct periodical errors in tracking , or as a result of not being properly aligned to the north celestial pole. If not, star bloating, trailing, and double stars would appear evident creating poor results. I do not think you would like to manually guide the guidescope for longer than 15 minutes reducing the overall resolution of the picture. This is where a ccd autoguider comes in handy, put this baby inside the second scope, have it guide to the nearest brightest star while connected to a program such as phd (point here dummy) on your computer, and let the computer automatically track for you ! Haha, considering you are properly aligned to the north celestial pole. For a serious ap mount with go to tracking we are talking $1000+, regular 80mm -120mm refractor $300-450, Ed refractor $600-$1200 (yields better resolution observing and taking ap, no chromatic aberration) , guidescope with ccd autoguider $380, dslr camera preferably modded ($500+ less used possibly) plus $300 for a astrophotography conversion to allow more reds in the ha alpha line ( nebulosity is more intense in the Orion Nebula, horse head nebula, ring nebula, etc) , t adapters, camera adapter, Photoshop( $300+) or some cheaper program such as paint shop prox8 . I'm not trying to scare anyone but I just want people to know how much they would typically spend on a decent setup. The Newtonian reflector on dobsonian mount will allow you to take very short exposures of the moon and planets but not for longer than a mere seconds since the earth is moving and this is more evident at longer focal lengths. The dobsonian has an as mount that doesn't move the way the sky objects do at night.
  3. Hi, so I have a modded 550d canon camera, I understand I either need a uv/ir clip in filter or external in order to obtain image clarity in a refractor telescope. However, these filters are not needed in a regular reflector due to the way light is emitted. My question is, do I need a external uv/ir filter for the canon efs lens since the astronomik clip in filter I intend to buy does not work on the efs lens? Or can I simply use the modded 550d canon with efs 18-55mm 55-250 lens on regular tripod for images of the mily way, maybe a few lower magnitude clusters , constellations , etc, ? I would imagine the uv/ir filter is only a necessity for refractors.
  4. Alright so I have a 8 inch dobsonain / Newtonian reflector , I also have a canon 550d. I wanted to know if I would need a Barlow to help my camera focus?am I only limited to plossis and Keller eyepieces inside the t adopter? How are astrophotographers able to get a wider field of view if a 32 mm eyepiece doesn't fit ?
  5. I was looking into buying this book. It is from the same author of night watch. Does anyone have the backyard astronomers guide? Is it a good idea to supplement to night Watch?
  6. Hi I was wondering where I can purchase a dew shield for an orion xt8 , I currently attempted to use my scope , and dew took its effect. will a fan help too?
  7. Wow , you guys are the best on here. I was able to see the Screws to collimate my laser with the given intstuctions. I also went to youtube, and saw that video. Excuse my ignorance, I guess I'm probably moving a little to fast. I did read a few articles on how to climate with the laser, however it did not mention the collimate on of the laser itself.
  8. I am also able to see the edge of the secondary mirror , I can see the secondary mirror back end like referrals say your suppose to have it.
  9. Any hints or tips will be greatly appreciated , this is the only part I am struggling with , I've spent a few hours tinkering .a little frustrated now!
  10. So I bought a laser collimator for my xt8 dobsonian, I am a little confused, I know the target side ion the laser is suppose to face the primary mirror , why for instance if I spin the laser around the focused or fitting where you place it, why does the laser not remain center? It moves around quite a bit causing it to not be in the donut circle. When the laser sticks out to the ceiling, this means the primary mirror is not properly adjusted right? Light is escaping and not hitting the secondary? . Everything is collimated now I think, when I look thru the manual collimator peephole, I can see everything on target, however the primary mirror is not exactly centered so that all four parts of the divided mirror due to the spider vanes can be seen, my question is , did I do everything correctly? I mean I think I notice a slight difference.
  11. Hi do you guys recommend a 5mm eyepiece or 4.5 mm for slightly higher mag viewing ? I already have a 6mm eyepiece that gives me 200xmag
  12. I find that I'm trying to squeeze as much as I can out of this 4.5 starblast. I think I might have just catched a case of aperture fever, looking for more definition.
  13. The most powerful eyepiece I've tried on my telescope is the one that came with it, which is a 6mm with a 2x barlow yielding 150x mag or equivalent to a 3mm eyepiece. I can see Jupiter significantly bigger with less sharpness, but I can see more detail. The 5mm eyepiece will essentiay be a 2.5mm eyepiece. As the other member replied, if a xt10 cant handle a 2.5 eye piece a 4.5 def won't! Lol. Thanks for the info though, sure saved me $50, and it can be found at Amazon .com. uote name="Gazabone" post="2556864" timestamp="1423149533"] I completely agree with your sums about how much magnification is achieved. In theory, it should work and agree again with your calculation however, as the previous poster has said, I doubt it wil actually work. If it's any help I have a Celestron X-cel 2.3 mm ep and it's really more than any of my scopes will handle comfortably, even a10" Dob, although that should handle 500x magnification, the 2.3 ep delivers 521x mag, I soon got fed up with trying to find focus. What the most powerful ep you've successfully coupled with a 2x Barlow so far?
  14. Will this eyepiece work with my star blast 4.5 using a barlow 2x at 180x mag? Scope can handle 225x . I just don't wanna be disappointed.
  15. So I recently came across a nice deal for a orion xt8. Bigger mirror equals more light obviously, what can I see in a xt8 that I can't see in a 4.5 starblast? Will the increase in aperture be significant ? Idk if I should buy this xt8 orion.
  16. Speaking of eyepieces , it sucks I can't go any lower than 3mm since I probably won't get a good resolution if close to maxing out the telescopes magnification. is that how it works for telescopes? There is technically magnification that will be untouched ? Unable to push its boundaries ?
  17. I'm gonna give the filter a shot, I recently bought a 2x barlow and I am enjoying the views! I have the standard issue 17mm, and 6mm however, it was great knowing they can convert into 8.5 mm and 3mm eyepieces! I figured that regardless of the aperture size, bright objects will look bright, why not dim them a little bit to try to bring contrast In them?
  18. Should I get this filter to help observe the moon with my 4.5 starblast? Will I be able to use this filter to try to get definition on Jupiter ?
  19. I have observed Jupiter a few times now, it is amazing to look at. I have a 4.5 orion starblast. My question is , why does it only look bright? I Can't make up any bands or surface details.
  20. Thanks a lot guys for the warm welcome. Glow jet that software looks really cool, i will be downloading it soon! . I am in the south eastern area of wisconsin, and I have been to a few brewers games,, prefer a packer game anytime over baseball. Haha
  21. Thanks! I recently saw Jupiter and it's moons yesterday. It was an amazing view. It was so bright, I couldn't make up its bands, but looking forward to observing it again. Thankfully I have my sky guide app that helps locate objects in the sky.
  22. Hi I am new to astronomy, I have recently purchased a orion dobsonian 4.5 reflector and hope to learn a lot from this forum, and the night sky.
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.