Hi Ron Thanks for your answer. It's very ilustrating. I have another question about this: I'm in the suburban area of Bogotá, Colombia (8 million people city)...
If your sky is bright like that, then you want to reject as much extraneous light as possible. The narrower filter should be more effective. I don't think...
We still have a way to go with perfecting the optics, but the Tzec Maun Observatory one-meter scope is starting to produce some nice images. There is a problem...
Wonderful images Ron. I know you have been working hard on getting these systems integrated properly. Congratulations on the progress and the fine images...
For that relative short amount of exposure, Ron, a very nice image! One meter, we can only drool!!! Looking forward to future images when the beast is fully...
... That's really asking for trouble (i.e. weird gradients in the calibrated image that are caused by defective flats). There is only one small spot in the...
... Pretty nice. But there seems to be a paucity of dim object in the field (i.e. limiting mag seems too low for that scope) so I wonder if your sky is...
Hi Ron You've been very helpful I think I should measure the sky background to see how long will it take to saturate the image and to decide if the LP filter...
Hi Alfredo, try this website - http://galaxymap.org/cgi-bin/rcw.py?s=1 It provides heaps of Ha/gaseous targets. Regards John Drummond Possum Observatory...
Wow. Beautiful image. If I added correctly that image is only 39 minutes of total exposure. To my novice expectations that is a really deep image for that...
... There is a big difference between narrow emission filters for nebula (stated topic) and LP filters for broad-band objects. As regards LP filters, measuring...
Hi Stan You have a point. I will have to check with and without the filter and then decide Best regards Alfredo ... [Non-text portions of this message have...
Beautiful image and incredible detail! So much detail in fact that it looks like the smaller galaxy is merely backlighting the end of the spiral arm of the...
Looking good Ron, Like an old car-racing friend used to say, "There's no substitute for cubic inches" ... or was that square inches. <g> Congrats on the great...
... Great photos Stan. The shadow photos are very cool. I was able to observe the eclipse from Reno. Your location looks familiar. Were you in the Northen...
Thanks. There was a really good series of articles based on Philip K. Dick's philosophies (emphasis on gnosis, and whole idea of "man is born evil and must...
The optics are typical of an RC: f/8.13. It's not really the optic speed that allows us to take such short exposures; it is much more about the camera. The...
I wouldn't read too much into appearances. I'm pretty sure that the smaller galaxy is in fact behind that dust lane, but you need to consider things like...
Thanks to everyone for their kind words. FWIW, the Tzec Maun Foundation does plan to offer time on the telescope. I will announce that here when the time...
I'm not really reading too much into it. It's just striking how different the image looks from almost every other image I've ever seen of M51, sort of a kick...
