elpajare
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home town/country: Girona-Spain
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Post by elpajare on Feb 1, 2019 16:14:26 GMT
Of the more than 2000 celestial objects with a magnitude of less than 12, only a few dozens are usually photographed in the Forum/Magazine of Astronomy. Most are nebulae and galaxies, less globular clusters and planetary nebulae and even fewer open star clusters or individual stars. The result is that we always see the same pictures but with the Videoastronony we can increase this figures a lot..discover more. Lets start with galaxies: According to Skysafari in the Northern Hemisphere we have 790 galaxies with a magnitude up to 12 but not all can be seen with the best possible detail with a single equipment and this is because there are larger galaxies and smaller ones. Galaxies that fit in a FOV of 20 'x 15' = 780 (98.7%) Galaxies that fit in a FOV of 48 'x 33' = 10 (1.3%)If we think about obtaining the maximum possible detail of each one, we will agree that we have to use several telescope / camera combinations to occupy most of this FOV. What possibilities could we offer to those who start in this hobby to see them all spending the least money on equipment?
Sure there are people here with a lot of experience who could help these possible new Video-astronomers.
PD: I have tried to simplify to the maximum the FOV that can be used not to load of telescopes and cameras to the beginners
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Deleted
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Post by Deleted on Feb 2, 2019 3:24:49 GMT
Good idea Carlos. I have wasted a lot of money of stuff I dont need and am becoming an expert on what not to do. I have developed a few firm ideas on what I think doesnt work well. cheers Paul
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elpajare
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Posts: 438
home town/country: Girona-Spain
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Post by elpajare on Feb 2, 2019 10:45:53 GMT
A basic and cheap proposal: Skywatcher 150/750 + NEQ3 Goto = € 825 Risingcam IMX224 = 190 € Laptop = € 200 (Amazon) It complies with the ideal FOV for photographing 95% of the visible galaxies in the Northern Hemisphere (those of the Southern Hemisphere should be calculated). This FOV would also allow photographing all the globular clusters and planetary nebulae. Every night consult DSO Browser (free) to know the objects available in the sky, make a list and get them! FOV of the combination scope/camera And the result..( you can expect some less detail because this shot is taken wit a 8" newton not hte 6")
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Post by howie1 on Feb 2, 2019 11:38:54 GMT
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elpajare
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Posts: 438
home town/country: Girona-Spain
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Post by elpajare on Feb 2, 2019 14:29:38 GMT
And two more examples of this 98,7% of galaxies with this basic setup: NGC 4096 15x18" NGC 3894-3895 15x18"
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Deleted
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Post by Deleted on Feb 3, 2019 4:16:04 GMT
Carlos, I know you are not a big fan of focal reducers,but with your basic setup, it would increase the FOV and you would fit most of the nebulas as well.
Also, Howie, I had never heard of DSO Viewer or 12DString . What great websites. Where have I been? cheers Paul
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Post by howie1 on Feb 3, 2019 7:24:28 GMT
Also, Howie, I had never heard of DSO Viewer or 12DString . What great websites. Where have I been? cheers Paul Where have you been? Paul, I think to myself "Where has all my time gone?" ... ha ha! For me it disappeared over the years trying all sorts of astro tools, trying to find the best ones or work more easily than others. I just made another short video to explain a couple of other very important 'features' of 12dstring ... especially as today he has updated it. This may cause you to wonder if the link / his site has been hijacked!! It hasn't, but the video will explain whats happened and some other REALLY useful features. Some important features of 12dstring.
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elpajare
Member
Posts: 438
home town/country: Girona-Spain
time zone gmt +/-: 1
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Post by elpajare on Feb 3, 2019 8:28:52 GMT
Carlos, I know you are not a big fan of focal reducers,but with your basic setup, it would increase the FOV and you would fit most of the nebulas as well. Also, Howie, I had never heard of DSO Viewer or 12DString . What great websites. Where have I been? cheers Paul Paul
You are right with the FOV. My basic equipment is composed of 3 telescopes and 2 cameras that cover all the observable / photographic objects of the sky. In the next few days I will discuss the other two telescopes and their combinations with the cameras.
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