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royvanrijn

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  1. There is nothing wrong with hearing my current setup isn't up for the job, I bought this beginners scope to see if it was worth any money to start with. Having looked at Jupiter and the Moon, and getting started with astrophotography I don't mind hearing that at all; that is exactly what I needed to hear to start looking into more advanced equipment! Although I'm not going to sell the 130P Heritage, I'm going to keep that as travel scope and when my daughter gets old enough she can play around with it! *goes browsing on what to upgrade to* Any hints/tips? I like the idea behind dobs (simple, lot of light) but there are obvious drawbacks, maybe buying a good EQ first (attaching the current Heritage OTA) and upgrading the OTA afterwards? Seeing I enjoy astrophotography more than just looking around...
  2. I should have mentioned, I used my Canon 550D, with ISO up to 6400 (grainy) and also 3200. It did show a nice nebula, but with 1 second exposures it showed star trails already, and of course the nebula also had motion blur.
  3. Hey everybody, After a great start with my 130P Dob photographing the moon and Jupiter (stacked) I decided to next try the Orion Nebula. The night was perfect, crystal clear cold night, but the nebula was kind of a failure. The limitations of the Dobsonian became painfully clear, very short exposures hardly showed any nebula, longer exposures (1 to 2 seconds) really clearly showed star trails. In the end it was still amazing to see the nebula blurred... but it feels like it could have been so much better. Is there anything I could have done? I tried stacking some short exposure images, but those just didn't have any nebula to stack... Or is photographing these objects with a (small) dob just impossible without a motorized tracker?
  4. I've got the advantage of a (small) backyard which has fences that block most light (I only have to close the curtains and manually switch off the lights in the backyard). I don't think a shield will improve much. The biggest problem I have is living near heavily iluminated greenhouses:
  5. Which 200p did you get as new upgrade? A dobsonian mounted to the EQ5 again, or did you buy an OTA like this? http://www.firstlightoptics.com/reflectors/skywatcher-explorer-200p-ota.html That does sound like a good upgrade path to follow, buying a EQ5 (or HEQ5) with dual motor drive for astrophotography, using that with the 130P first. Later I can buy a separate better OTA for the EQ and mount the Heritage back to the dobsonian for travel and my kids. Right?
  6. Oh and is this post in the correct topic? Or would it be better placed in DIY Astronomer?
  7. From what I've seen the first step in making an equatorial platform is calculating the Center of Gravity (CoG). Then a cone is calculated and the platform is made to follow this cone-shape (based on your geographic location). This is better than having a platform aligned towards the polar north because that would place the Dobsonian in a very steep/odd angle which stresses the telescope too much. But what if you want to have a platform that works for multiple telescopes? Based on what I now understand about the theory there are two options, first I could make the platform very large. A small telescope would be placed near the south bearing, a larger telescope would be placed further north. Does this work? Another option is just to raise the smaller telescope until the CoG is high enough/on the cone polar line. Does this work?
  8. Attaching my (kind of heavy) DSLR was a bit much for the Heritage 130p but it worked quite well. I did shift the dove tail attachment a bit to change the center of gravity of the tube. I do wish now I had a mount with tracking instead of a dob, but hey, you can't argue with the Heritage Dob as beginner telescope looking at price/value. I might invest in a tracking EQ mount first and attach the 130P initially (step-wise improvements). This can be done right? Anyway, I'm still unsure if my backyard allows me to look at much more than planets/moon with the light pollution, and I don't see myself driving hours into the less densely populated areas of Europe with my telescope.
  9. Hello everybody, This is my first post on the forum! After buying my first telescope in november (and having three weeks of overcast) I'm starting to get the hang of it. During the time I had the telescope but no way to use it I already created a modified Lifecam HD-3000. I used this for my first image (stacked using RegiStax): (Sky-Watcher Heritage 130P, Microsoft Lifecam HD-3000 modified, stacked with Registax) After playing around with this setup I decided to get a 2x Barlow. I settled on an Ostara 2x Barlow with EOS T-ring. This allowed me to hook up my Canon 550D/T2i to the telescope. After trying that I never attached the webcam again. Shooting with the Canon 550D in 640x480 cropped works much better for stacking. I also noticed when viewing with the Barlow all the stars/planets had a smear to one side... this reminded me: Collimation! This is something I'd read about, but hadn't tried (hey, the telescope just came from the factory). I quickly found out the collimation was very bad when I made my own collimation cap. After realigning the primary mirror it made a HUGE difference. Yesterday I went out again, and between the clouds in the cold I was stunned by how clear Jupiter has become now: (Sky-Watcher Heritage 130P, Ostara 2x Barlow with T-Ring, Canon 550D/T2i 640x480 cropped movie mode, stacked with Registax) I live in one of the most light populated places in the world, so I haven't really tried to look for other things besides the moon and Jupiter. What other things would be interesting to look at with my beginner scope? I'm planning on taking the telescope out more away from cities when the cold months are gone. Any comments/hints/tips are extremely welcome!
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