www.bajadarkskies.com 18" Starmaster dob (zambuto primary) 30" Starmaster dob (intermountain optics)
NP-101 on a DM-6
Teeter 11" STS/Waite Mirror
Zeiss, Fujinon, Nikon, Vixen binoculars
14" Strut; 10"XT; 102ES; 22 in Process; 3.5,5,7,10,14,20mm Pentax XW; 17.3 & 12mm Delos; 27mm Panoptic; 20&24mm ES 68; 24mm ES 82; 30mm ES 82; 6&10mm BCO;
Quote: To take only one example from my personal experience, Boulder, Utah and Goblin Valley, Utah are both good sites, but the former is now a blue sky zone and the area between it a Goblin Vally is filled with black sky zones--including most of Capital Reef National Park.
Orion XT12i with Swayze-refigured primary & Protostar secondary
Televue NP101 refractor
William Optics Megrez 90 refractor
Universal Astronomics Deluxe Mounts
Quote:I agree, areas that once were dark are becoming lighter and in Utah, there are still some good areas but more are in the West Desert at around 6000 feet in elevation
Quote:Jon, JackFor sure the weakness is the incompleteness of data points! But if people have pristine observing sites like the ones you describe Jack, why not send the coordinates in to Attilla and have him create a CSC for it!What I've always wondered is once you are at a black zone area, does it matter that much how far the site is from the transition to a gray zone? Or are other variables such as humidity, particulate content of the air much more important at that point than virtually non existent sources of light pollution? I was surprised to see TSP as being so low on the list but it is actually just inside a gray zone, presumably due to lights from Fort Davis.I'm just very thankful of how close I am here to my pristine skies!!cheersMike
SyedTeeter STS 11 f/4.3 Zambuto | XT8i | XT8g | XLT 150 | C90 | EON 80mmAT Voyager and Nexstar SLT mountsEyepieces: Mostly TeleVue and PentaxDenk II BV'er, Earthwin PFS-SE, Pentax 10x50 PCF WP II
Quote:Quote: To take only one example from my personal experience, Boulder, Utah and Goblin Valley, Utah are both good sites, but the former is now a blue sky zone and the area between it a Goblin Vally is filled with black sky zones--including most of Capital Reef National Park. Just curious, since I was through Boulder late last June (2012) on a road trip along the astonishingly scenic Utah route 12. I passed through Boulder in late afternoon, but missed seeing any substantial-enough development, commercial, residential, or tourist, that seemed like it would likely cause any but very minor, immediately local light pollution. I'm not doubting your experienced word that it's there; maybe I'm simply under-estimating what quantum is sufficient to degrade any sigificant portion of the area from black down to blue. The area around Torrey/Bicknell, some thirty-five miles over a 10,000 ft+ mountain pass, I can understand being degraded to that extent, even though these are very small, isolated towns by the standards of most other places. The Capitol Reef Area and southward from Hanksville over on the east side of the Henry Mountains looked like it would provide spectacularly dark viewing opportunities (after all, that's on the way to Natural Bridges National Monument, the epicenter of the darkest skies in the lower 48, a long way from any significant town or lights). Unfortunately, I wasted a clear night staying in a motel in Torrey instead of camping out, expecting I'd get to spend the next night out at Natural Bridges National Monument under clear skies once the moon set just after midnight. But alas, that next night @NB turned cloudy and stormy, and I only got a teasing glimpse an hour or two before dawn of the night sky through gaps in the too-slow dissipating clouds from the T-storms earlier in the night. That's a trip I'd love to repeat, timed with clear weather and a new moon cycle, and with my scopes and gear along.
Quote:Hi Starman, As far as the "safeness" of Baja California goes I can only speak from our own experience. In our 5 years living here we have never once felt uncomfortable or threatened. Of course there are other states in Mexico where we would not go such as Veracruz and the city of Monterrey but rules of common sense apply anywhere in order to minimize risk. Overall the state of Baja California has a very low population density, once you pass south of the bustling border town of Tijuana the mood is actually quite mellow, and the people are more open and friendly than the hectic socal cities. We usually breathe a sigh of relief once we pass south of the border and get away from the frenetic SoCal traffic! The Sierra San Pedro Martir park has very low visitation rate, less than a few 1000 every year, if you go in spring/summer its entirely possible that you could be the only visitor in the park! Plus since there is only one way in, after 8 o clock the park rangers close the front gates and there isno more traffic! At our 1200 acre ranch the most trouble we have had, has been with the off road community (American and Mexican,Canadian) We put up gates to maintain some security and they broke them on more than one occasion,leading to some uncomfortable exchanges between us and them, luckily after 2 years of this they have finally given in to using another route. All part of living in a very remote region!! But we really love it here, soon we will have federal status as a privately owned nature preserve which will give us access to funding for conservation projects.clear skies Mike
Nine telescopes of a diverse nature. My Web Site Cosmic Cat: a children's book about astronomy for iPad. English Lessons for Amateur Astronomers
Quote: I'm on the road though - checking out of a motel in Chinle/Canyon de Chelley - en route to Tucson.
Quote: Quote: I'm on the road though - checking out of a motel in Chinle/Canyon de Chelley - en route to Tucson. Which one was it, the Best Western, the Thunderbird Lodge or the Holiday Inn? There is also the Spider Rock campground where you can stay in a Hogan... My wife and I were married in Chinle. Jon
Who you jivin' with that Cosmic Debris? "all science is either physics or stamp collecting" -- Lord Rutherford
Quote:That is a great site deep within the 'Black' zone! Are there any problems going down to the Baja from the US for American citizens? On the Dark Sky Finder I see this statement for the Sierra San Pedro Martir site: "Located in a area of Mexico that may be hazardous to Americans."
Celestron 8SE Dobstuff 13.1": Swayze refigured Coulter mirror, 6 pt mirror cell (2 pt edge support) and CF focuser board made by me StarBlast 4.5 ST80/PortaMount II Zhumell 20x80/Oberwerk 15x70 on a Seronik-style tripod boom mount Hubble Optics 18 inch F/4 mirror.