Recently Browsing 0 members
No registered users viewing this page.
I am looking to return my Powerseeker 114eq and get a XT6. I know that my canon rebel T4i will not reach focus. It wont travel enough inwards. I want to know, which is best? Plan A is trying to use Barlow or eyepiece projection. Which will magnify less, eypiece or barlow? Are there any tips for both of tose methods and how to use eyepiece projection? Then, Plan B is moving the mirror. I cant find any good tutorials either. Thanks in advance.
Hi, I have changed the focuser on my newtonian but its too short.
I realise that I can just add an extension tube to it but I’m not sure if that is the best solution.
I also seem to have have a stray light problem (I’m getting a hazy image on a 5mm eyepiece).
A third problem is that I find it quite cumbersome that the focuser has to stick out so far (155mm+eyepiece).
I wonder if I might solve the stay light problem by extending the main telescope tube instead of the focuser and therefore getting the eyepiece closer to the secondary. And also maintain more precision in the focuser by not extending it.
As it stands the focuser would have to come out 265mm from the centre of the secondary mirror in order to focus. The secondary is 50mm wide. From primary to secondary is 950mm approx.. The primary is 200mm Thanks for reading. Any advice will be much appreciated.
I would like to share my first picture ever posted and the first real picture captured with my Tecnosky 80/480 APO FPL53 Triplet OWL Series (not counting the test shots for "first light").
This is IC 1805, also known as the Heart Nebula, taken over 4 nights, under my Bortle 5 home sky.
Total integration time: 8h 52m 20s.
Here are the acquisition details:
Mount: Sky-Watcher NEQ6 Pro
Telescope: Tecnosky 80/480 APO FPL53 Triplet OWL Series
Camera: D5300 astromodified
Reducer/flattener: Tecnosky 4 elements, 0.8x
Guide-scope: Artesky UltraGuide 60mm f/4
Guide-camera: ZWO ASI 224MC
2020/10/07: Number of subs/Exposure time: 1@60s + 80@90s. Notes: No filter, Moon 70% illuminated
2020/10/13: Number of subs/Exposure time: 2@60s + 11@180s + 1@200s + 12@240s. Notes: L-Pro filter, no Moon
2020/10/27: Number of subs/Exposure time: 59@180s + 1@240s. Notes: L-Pro filter, Moon 88% illuminated
2020/10/28: Number of subs/Exposure time: 48@180s. Notes: L-Pro filter, Moon 93% illuminated
Total exposure time: 31940s = 8h 52m 20s.
Pre and post-processing: PixInsight 1.8.8-6.
Unfortunately, the best out of the 4 sessions (no Moon and L-Pro filter) was also the shortest one. But, after waiting for 5 months for my telescope, I couldn't pass up the few clear skies opportunities I got since it arrived, Moon or no Moon.
Here's a link to the full resolution image: Heart Nebula (IC 1805)
Thanks for looking and commenting!
So I am fairly new to the hobby, what I mean is I have a Celestron Astromaster 114 right now but its hard to use because of the non computerized equatorial mount as well as the red dot sight is bad. I am mainly interested in looking at DSO’s because they seem very interesting. My question is should i get a refractor or sct for observing dso’s and sometimes planets? I want a computerized one with tracking so I don’t have to take a long time finding nebulae and galaxies. Also, is there a certain type of filter to see color on nebula when not using eaa and just viewing with your eyes? I am looking to spend between $600-900
I'm aiming for the best possible field illumination for my Explore Scientific PN208 f/3.9 imaging newtonian. The scope is 5 years old now and while doing maintenance I wanted to do something about the design flaws as well.
With the current secondary holder design it's impossible to center the mirror beneath the focuser. My question is: is this really an issue when the entire primary is visible? I read about optimal field illumination when the secondary is centered, but this isn't achievable with this telescope.
I attached an image showing the (very bad aligned and already degrading) secondary at the moment. This is as far down as I can go, I would need to replace the holder screws with longer threads to go further but I don't know if it would make any difference for field illumination?
Thanks in advance,