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Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | (show all) jr_ sage Reged: 07/28/03 Loc: Valencia, Spain TriAtlas project (2nd. edition) - first proof       #2296815 - 04/01/08 07:47 AM Edit   Reply   Quote Quick Reply   Hi everybody, I am preparing a new edition of the TriAtlas, trying to solve all the detected problems reported up to now. I have prepared a set of three sample charts (Orion, Andromeda and Ursa Major) for discussing and improving the maps before generating the new A, B and C sets. PDF file with three B-set charts (2nd edition) There are some very nice improvements (I hope): (1) Chart arrangement by decreasing R.A., similar to Uranometria 2000.0 2nd ed (2) Charts are now in portrait format. This allows viewing a larger region of the sky, placing two consecutive charts oposite. (3) Label overlap problem practically eliminated. The system is quite good although I think I can still do some more improvements (4) Tips indicating the location of the problematic objects, which allow labelling even extremely cluttered regions (eg. Large Magellanic Cloud) (5) Double stars labelled by name and indicated by horizontal tips, but best double stars are plotted like in the former release (6) Larger fonts, much more readable and still good for the scale of the maps (7) Legend at the top and neighbouring charts at the borders in black background (8) New symbols, etc... Well, the best is to have a look in the link above. I am very, very happy with the new charts and I hope they will help to enjoy the sky to everybody. Enjoy!!! Edited by jr_ (04/01/08 10:07 AM) Post Extras:       stevecoe "Astronomical Tourist" Reged: 04/24/04 Loc: Arizona, USA Re: TriAtlas project (2nd. edition) - first proof [Re: jr_]       #2297390 - 04/01/08 12:37 PM Edit   Reply   Quote Quick Reply   Jose; The area around the Andromeda Galaxy is much too crowded. Most of those globulars would demand a 16 inch telescope. No one with a large telescope would try and use such a crowded map to find any of those very faint and difficult objects. Also, please label "Barnard's Loop" with that name. There are places where a common name is how that object is spoken about. I will be interested to see how many galaxies you allow in these Abell Galaxy Clusters. Many of them are very faint and difficult in medium sized scopes. Thank you for your time and effort; Steve Coe Post Extras:       jr_ sage Reged: 07/28/03 Loc: Valencia, Spain Re: TriAtlas project (2nd. edition) - first proof [Re: stevecoe]       #2297526 - 04/01/08 01:22 PM Edit   Reply   Quote Quick Reply   Hi Steve, First, thanks for the feedback, and congratulations for your books (I have a couple of them). The same for the excellent observations you have made available throughout the years. I started this project with the old SAC52 database. Don't worry for the Andromeda globs. No one would dare to search them with a low power atlas. The atlas just indicates that "they are there". For finding them, obviously one needs more power. I could find seven of them with my 10", but I needed a photograph to spot them; perhaps the TriAtlas C (currently its faintest stars are around 12.25 mag) could serve for some of them, but the best is a picture or a full power computer map. The reason to plot them in the B-set was simply that I thought the B-set would include all known globs (after all, there are very few); in some cases, the C set is necessary, and in the case of M31 globs, a picture is the best alternative. I still have to prepare a list with common names for stars, asterisms and named objects (such as the Barnard's Loop). This feature will be present in this edition, that is sure. What I have linked is only a first proof to get some feedback. Again, only some "brightest" (if this could be said at all) Abell clusters are plotted in the atlas, but no galaxies (except outstanding cases such as NGC 6166 and so on). I decided to include all Hickson and some Abell clusters. The base program (CNebulaX) includes more than a million galaxies (Hyperleda), but the atlas is cropped, and even at full power, most Abell's includes few or none Hyperleda galaxies. The first release of the C set included around 37000 galaxies, and B-set (the set to which correspond the sample charts), around 7000. With my telescopes, I have not seen Abell galaxies except some cases (Perseus cluster, Hercules AGC 2199, and a few more); I was able to image at least the CrB GalCl, though. Edited by jr_ (04/01/08 01:53 PM) Post Extras:       stevecoe "Astronomical Tourist" Reged: 04/24/04 Loc: Arizona, USA Re: TriAtlas project (2nd. edition) - first proof [Re: jr_]       #2298032 - 04/01/08 04:47 PM Edit   Reply   Quote Quick Reply   jr; There is a set of asterisms on the SAC site. www.saguaroastro.org Enjoy; Steve Coe Post Extras:       NeoDinian Experienced Postmaster Reged: 10/05/05 Loc: Rockford Illinois Re: TriAtlas project (2nd. edition) - first proof [Re: stevecoe]       #2298338 - 04/01/08 06:40 PM Edit   Reply   Quote Quick Reply   What size paper is required for printing? A4 or 8.5x11? Post Extras:       Olivier Biot Amused Reged: 04/25/05 Loc: 51°N (Belgium) Re: TriAtlas project (2nd. edition) - first proof [Re: NeoDinian]       #2298648 - 04/01/08 08:50 PM Edit   Reply   Quote Quick Reply   Hi José, Congrats - I really like these previews, even if some parts are quite crowded with objects (e.g. M31). One thing I noticed: the stars do not appear round when they're not at the center of the page. Cheers! Olivier Post Extras:       o1d_dude o1der than dirt Reged: 10/03/07 Loc: The Wolfpack Re: TriAtlas project (2nd. edition) - first proof [Re: Olivier Biot]       #2299262 - 04/02/08 01:50 AM Edit   Reply   Quote Quick Reply   Jose, you are a sky map making madman and I mean that in the best possible way. I am constantly amazed by the level of detail in your work. You may find this hard to believe but here in the US finding A4 paper is almost impossible. I understand that the US is going its own way with 8.5x11 inch paper but it's all we amateur astronomers have to work with. Thank you for your dedication to mapping the skies. Post Extras:       jr_ sage Reged: 07/28/03 Loc: Valencia, Spain Re: TriAtlas project (2nd. edition) - first proof [Re: stevecoe]       #2299546 - 04/02/08 08:33 AM Edit   Reply   Quote Quick Reply   Steve, I have got the common names and asterisms files from the Saguaro Astronomical Club already. In fact, the core of the A and B sets is the SAC database, that for me it is one of the best (if not the best) deep sky resources. I have to say that I am quite fanatic of the SAC databases since the 5.2 release; I made my first deep sky program for managing it. Thanks for the idea, and if you know more sources, please tell me. Edited by jr_ (04/02/08 09:09 AM) Post Extras:       jr_ sage Reged: 07/28/03 Loc: Valencia, Spain Re: TriAtlas project (2nd. edition) - first proof [Re: NeoDinian]       #2299555 - 04/02/08 08:39 AM Edit   Reply   Quote Quick Reply   NeoDinian, I can prepare PDF files at any size. What is the most common paper size in the USA? Please tell me, and I will prepare a sample PDF. About paper sizes, Adobe Acrobat (or Adobe Reader) print menu includes an option to scale up or down the print job to any paper size (the maps are vector-based: there is no loss in resolution). Did you try this feature? I don't see any problem in changing the size to whatever measurement (except more web space to store the files). Edited by jr_ (04/02/08 10:45 AM) Post Extras:       jr_ sage Reged: 07/28/03 Loc: Valencia, Spain Re: TriAtlas project (2nd. edition) - first proof [Re: Olivier Biot]       #2299564 - 04/02/08 08:46 AM Edit   Reply   Quote Quick Reply   Hi Olivier, I also like the look of the new maps. Another sample, this time of the A-set: Proof page of the A-Set (TriAtlas 2nd, ed.) I didn't see any distorsion at all in the printed charts, but if you magnify the charts to very high levels it could happen. I suppose that it can be generated by the virtual printer code and can be supressed increasing the detail (and the file size...). Post Extras:       jr_ sage Reged: 07/28/03 Loc: Valencia, Spain Re: TriAtlas project (2nd. edition) - first proof [Re: o1d_dude]       #2299585 - 04/02/08 09:01 AM Edit   Reply   Quote Quick Reply   Hi Kit (o1d_dude), I am quite amazed by the problems with the paper size. Have you tried to scale the paper using the print menu options of Adobe Acrobat -or Adobe Reader-?. Using this menu, you can print the charts at any scale value you wish, and fit the charts in 8x15" pages (or whatever size) without losses in resolution. Is the 8x15 inches the standard US paper size? Please, confirm it or tell me the most usual page size, and I will generate charts for that size. It's a pity that countries do not find an agreement in basic things like this. In Europe the A4 is the standard. All printers are prepared for it. About madness of making charts... Well, what I really like is to see the deep sky, and the basic tools are the sky charts. It is only that. Edited by jr_ (04/02/08 09:04 AM) Post Extras:       NeoDinian Experienced Postmaster Reged: 10/05/05 Loc: Rockford Illinois Re: TriAtlas project (2nd. edition) - first proof [Re: jr_]       #2300887 - 04/02/08 06:55 PM Edit   Reply   Quote Quick Reply   Brief history of 8.5x11 paper in the US: 8.5x11 The "A" sizes makes more sense to me, as they all seem to be half's of each other unit (ie: Double the width of 2 A4 = A3). No idea why the US didn't stay with the same sizes though, as A4 is used EVERYWHERE else in the world, and 8.5x11 is ONLY in the US... Heres a link about all international paper sizes... http://www.cl.cam.ac.uk/~mgk25/iso-paper.html Post Extras:       jr_ sage Reged: 07/28/03 Loc: Valencia, Spain Re: TriAtlas project (2nd. edition) - first proof [Re: NeoDinian]       #2301881 - 04/03/08 07:53 AM Edit   Reply   Quote Quick Reply   NeoDinian, I have prepared a proof with the paper dimensions you have told me (11x8.5" = 27.9x21.6 cm = letter size). Please have a look and print it. If it looks right, I can prepare editions for this page size. This is the sample chart: Sample page in 8.5x11" paper size The charts are prepared for 600 dpi printing; I am using an HP laserjet 1022 printer. I suggest a good laser printer: ink printers do not work so well for small high resolution details. Post Extras:       NeoDinian Experienced Postmaster Reged: 10/05/05 Loc: Rockford Illinois Re: TriAtlas project (2nd. edition) - first proof [Re: jr_]       #2303228 - 04/03/08 06:34 PM Edit   Reply   Quote Quick Reply   I guess if Adobe can "Scale" for printing, and it scales proportionally, then that would work best. I just printed out your sample, and chose NO SCALING. Seeing as you left very little margin, the bottom of the chart didn't print on my printer. The top, left, and right all printed fine, but are very close to the edge, within the normal margin. If I scale it ("Fit to printable area" option), then all prints fine, within the margins... Printer margins are .5 inches from each edge, as well as top and bottom. MOST of the time I can override these, except for the bottom margin. I can not go past the .5 on the bottom or I loose whatever was there. But I digress... Like I said, with Scaling, all prints fine. Nice charts! Post Extras:       ~Steph~ Texas Wildflower Reged: 06/11/05 Loc: North Texas Re: TriAtlas project (2nd. edition) - first proof [Re: NeoDinian]       #2303259 - 04/03/08 06:48 PM Edit   Reply   Quote Quick Reply   And just for another opinion, I tried printing with both "no scaling" and "fit to printer" and both worked fine for me; "no scaling" didn't cut anything off any of the margins on my printer. Even on the slightly smaller scaled version, though, everything is quite legible (if teeny ). Jose, thanks for your hard work on these charts, and for taking the time to accommodate us weird U.S. folks, it's appreciated! Post Extras:       NeoDinian Experienced Postmaster Reged: 10/05/05 Loc: Rockford Illinois Re: TriAtlas project (2nd. edition) - first proof [Re: ~Steph~]       #2303346 - 04/03/08 07:18 PM Edit   Reply   Quote Quick Reply   Quote: And just for another opinion, I tried printing with both "no scaling" and "fit to printer" and both worked fine for me; "no scaling" didn't cut anything off any of the margins on my printer. Yeah, this will vary from printer to printer. I actually think it has nothing to do with margins in the printer, but rather how the printer feeds the paper. The head couldn't print any more beyond that .5 from the bottom probably because of how it feeds?!? I can get (with other prints I've done) within an 1/8 inch of the top, left and right... Post Extras:       jr_ sage Reged: 07/28/03 Loc: Valencia, Spain Re: TriAtlas project (2nd. edition) - first proof [Re: NeoDinian]       #2304749 - 04/04/08 12:30 PM Edit   Reply   Quote Quick Reply   Hi NeoDinian and ~Steph~, It is easy to change the format and print in letter-size paper or whatever else, bigger or smaller. In that way you not need to scale down the maps (tiny labels), and the quality is better. The total number of pages may change, but I can solve this. There is, however, a problem: the three sets require around 600 Mb for storage, and now, with the first version and all the other stuff (CNebulaX and other files), I have exhausted all my web space (around 1 Gb); I can replace the 1st. version by the 2nd., but I have to space to store two 2 full second versions. Perhaps I could store sets A and B in two page sizes, but the C set is impossible. I will link the A and B sets in both A4 and letter-size (8.5x11") -probably next week-, but when I finish the C-set, I will have to remove the letter-size edition. Edited by jr_ (04/04/08 12:33 PM) Post Extras:       NeoDinian Experienced Postmaster Reged: 10/05/05 Loc: Rockford Illinois Re: TriAtlas project (2nd. edition) - first proof [Re: jr_]       #2305699 - 04/04/08 09:10 PM Edit   Reply   Quote Quick Reply   No problem... Yeah, Scaling is fine, but you end up with TINY labels. My eyesight isn't getting any better. Post Extras:       jdavalos member Reged: 08/24/04 Loc: Guadalajara, Méx 20.30N\103.20... Re: TriAtlas project (2nd. edition) - first proof [Re: jr_]       #2305949 - 04/04/08 11:25 PM Edit   Reply   Quote Quick Reply   Hi. Great work, as ever... too much information for me (as I've told you in other times) but it really looks very nice, besides, I think it will be very useful for a lot of serious astronomers around the world. Greetings from México. Post Extras:       Scott Regener Pooh-Bah Reged: 03/31/06 Loc: SE Minnesota Re: TriAtlas project (2nd. edition) - first proof [Re: jdavalos]       #2306353 - 04/05/08 07:53 AM Edit   Reply   Quote Quick Reply   I'm excited to get this atlas. The first edition wasn't quite good enough for my needs (for the reasons you've cited in re-doing it a second time.) But I expect I'll take this PDF file and run it to the local printer for a first-class job. I need something deeper than Taki's 8.5, and the Herald-Bobroff has been "out of stock" since Christmas, it looks like the MSA is no longer in print, and Uranometria didn't seem deep enough the time I used it. Creating two versions seems to be too much work in my opinion. I had no trouble printing the first version on letter paper. Post Extras:       Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | (show all)

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