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billpeters

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Everything posted by billpeters

  1. I hand built a 12.5 inch telescope that stands about 2 meters high. I hand ground a blank 45 lb pyrex mirror without electronics. It took forever. I'll never do that again. Its got good optics though. I must have done it right. I'll be taking it out on my next viewing. billpeters
  2. I saw 52 meteors last night over 2.5 hours, 39 were Perseids. The brightest and longest ones were early in the evening. About half had momentary trails. My last half hour I saw 20 before it nearly fully clouded over. They were good meteors, but the hourly count was well below years past. I also saw this week's new nova in Ophiuchus. billpeters
  3. Chrisski, The Perseid radiant is easy to find in the sky by first locating the big "W" of Cassiopeia and looking directly below the last star of the "W". The Perseid radiant rises about 10:30~ p.m. and no Perseid meteors can be seen before 10:00 p.m. as the radiant must be above the horizon or very close to being above the horizon for Earth skimmers to be seen since all meteors travel in straight lines and cannot go around the Earth, just like bugs cannot hit the back window of a car. The front of the Earth is sunrise and the back of the Earth is sunset with about local midnight being the side of the Earth. Luckily, the Perseid radiant is far enough north to be above the horizon a couple of hours earlier. I saw three Perseids around midnight early last Tuesday, August 3rd while I was scoping out seven +8.4 to +10.9 magnitude asteroids with my binocs. The key to seeing the most meteors is to lie back on a lounge chair looking up to see the zenith and facing east northeast with a good drink by your side. Unfortunately the Barbeque by Meteorite is cancelled because of the fire danger. Let us know how the observing goes, billpeters
  4. Its time for another Barbeque by Meteorite. I've found a spot at the Four Peaks parking lot six tenths of a mile up the hill from the Beeline highway where I expect the meteor landing spot will start the barbeque. All are welcome to join me Wednesday night. Last week I saw my 20,900th meteor and expect to add several hundred more Wednesday night weather permitting. Last week I saw seven main belt asteroids just with my 20x60 binocs. I have seen about 30 asteroids just with my binocs this year alone along with two other nova two weeks ago. I will see this week's new nova naked eye in Ophiuchus. Keep looking up! billpeters
  5. I need help finding and researching doppler radar sites recording incoming atmospheric meteors for possible strewnfield sites to search for recoverable meteorites. There was one research site the I had used which closed down. Obviously there are others, but I don't know what is out there. Which is the best? Are there any free sites? What are the costs for paid sites? I am interested in going back historically, if possible, to the late 1990's. I am also looking at a couple of possible AZ falls in 2020. All advice is welcome. Keep looking down. They're out there. billpeters
  6. Lawrence Garvie can be contacted at lgarvie@asu.edu . He is usually quite busy and rarely answers his phone. So, keep emails to pertinent topics with strong candidates. billpeters
  7. Jo, I spent a week in Marbella and Malaga and visited Gibraltar and Morocco. Every past year in January and February, except 2021 many Moroccans sell their meteorites at the Tucson, Arizona Gem and mineral show. I hire Arab and Moroccan interpreters daily for my interpretation business near Phoenix. Billpeters
  8. Welcome Jo, All of us find endless magnetic meteor-wrongs and most of us have learned to recognize the difference. It is best to have a keen understanding of what truly is likely a possible meteorite and throw the others away. Testing is best done by the experts. Where are you? That will help determine who may be able to do analysis for you. Why don't you post pics of your best candidates and let us offer our opinions? Make sure they are clear, close pics with your observation notes as to why they are good candidates. Warning, you may be disappointed with our reviews, but our observations are normally very good. billpeters
  9. Thanks for posting Snowball, However, the Younger Dryas Impact Comet Crust theory that supposedly resulted from a comet strike 12,900 years ago on the North American ice sheet has been fairly substantially debunked for non-supporting and conflicting evidence. The material for your pic and none of the other pics of of Impact Comet Crust on the web are recognized as being extraterrestrial in origin. You may want to check out https://en.wikipedia.org/wiki/Younger_Dryas_impact_hypothesis It is though a worthwhile topic for discussion. Sincerely, Billpeters
  10. Welcome Meljerm, Unfortunately, your rock is typical basalt or slag, both of which are magnetic. billpeters
  11. No. Looks like quartz inclusions in, maybe, basalt. billpeters
  12. Had a great Barbeque by Meteorite feast Sunday night during the Geminid Meteor Shower. The annual Geminids produce on average the highest count of meteors of any meteor shower. Nearly 100 meteors can be seen per hour during the peak night of December 13/14. The good news is that the Gemini twin stars where the radiant of meteors seem to originate are at a north celestial latitude and rise earlier in the evening than nearly all other meteor showers making barbequing and observing much less late night. I set up my barbeque wood pile on the dirt hill just beyond the cul de sac at the dark desert intersection of the Beeline and Bush Highways northeast of Fountain Hills, AZ exactly where I knew that special ember would land. The shower produced a steady stream wheel spoke of meteors all night long. Then about 10:45 p.m. two simultaneous meteors in tandem in an absolute straight line precursed the main event. Right on queue just afterwards a magnificent fireball came straight out of the radiant as a glowing brilliant orb coming right at me lighting up the nearby desert and I knew we were in for a treat. It landed smack in the center of my woodpile bursting it into flame. The Geminid Meteors produce those savory carbonous embers that add that special out of this world flavor. I waited for the wood to burn down and put the grill over the fire. Then I grabbed the beef ribs and put them on the grill adding my own special sauce. There were about ten of us properly masked waiting for our taste buds to be tantalized. We were not disappointed. A great feast was had by all. Cheers! billpeters
  13. Jester, 100% terrestrial sedimentary. Nothing even close. Keep looking down, they're out there! billpeters
  14. Kolang 1°53’18.8"N, 98°39’39.6"E Sumatera Utara, Indonesia Fall: 1 Aug 2020 Classification: Carbonaceous chondrite (CM1/2) History: (M. Farmer, Arizona) Around 4 pm local time (9 am UTC) on 1 August 2020, residents in northwest Sumatra (Central Tapanuli Regency) heard loud booming sounds that shook their houses. A single stone weighing ~2100 g went through the roof of a house in Kolang at 1°53’18.8"N 98°39’39.6"E (Satahi Nauli, Kolang, Central Tapanuli Regency, North Sumatra, Indonesia) and embedded itself into the soil beside the house. Another stone impacted in a rice paddy about 2.2 km south of the main mass. Two more stones were found ~7.8 km to the SE (around 1°49’50.22"N 98°41’51.22"E). Michael Farmer initially acquired 266 g, which includes fragments from the main mass and the rice paddy stone. This material was used for the classification.
  15. I saw that article about the close pass and also on Spaceweather.com of Asteroid 2020 VT4. It would have been about 10.9+ magnitude for about half an hour over Phoenix and even brighter over the Pacific where it was the closest. The past few nights I have been watching Asteroid 8 Flora 78 miles across at 8.2+ magnitude moving slowly through Cetus. I have also been watching in my binocs Comet 2020 Atlas M3 moving northwards at a good pace past the right belt star of Orion to past the right shoulder star Bellatrix. It has been fading to 8.4+ magnitude. Early morning Comet 2020 Erasmus M3 has brightened to 7.3+ in Corvus and will be brighter than 4.9+ by December 12 as it moves into the after sunset evening sky. I am looking forward to seeing it. I have been also watching the fairly disappointing Taurid and Leonid meteor showers this month. My lifetime count is now 21,729. I am looking forward to the always excellent Geminids on the night of December 13/14. Check out http://astro.vanbuitenen.nl/asteroids I have been doing grid searches for a main mass meteorite in the basalt volcanic plains within the region well north of Tabletop Mountain with no luck. However, I have found three significant Hohokam sites of laid out rock patterns containing a maze, two rainbows, mosaics, lined trails, mounds and lookouts with accompanying pottery and a 400 lb pestle style metate. Stay Covid safe, billpeters
  16. Welcome. It's absolutely not a meteorite. It is slag. Slag is not steel, but leftover remelted refuse. It is quite common and dumped everywhere. billpeters
  17. Iska warran or mambo, Jamale! I have been running an interpretation business www.400languages.com for 28 years now where I use Somali and Swahili interpreters nearly every day. I use other Bantu languages like; Maay maay, Rundi and neighboring country languages like; Juba-Arabic, Dinka, Maadi, Amharic, Tigrinyan, Afar and about 75 other African languages. We interpret onsite for local African background people in the Phoenix, Arizona area for medical clinics and the courts. We also interpret over the phone and by video conference. "Jamalito" is a positive nickname to me here, but culturally no one wants to offend anyone because of the female case ending. I'm still going to order meteorite supplies from my favourite supplier, Jamalito Enterprises, though. It is good having you back on the meteorite forum. Kwaheri, billpeters
  18. Just like all Earth rocks that have a 1000's year old weathered surface. billpeters
  19. Meteorite fusion crust is normally smooth, black, and about as thick as your fingernail. It may have crazing surface cooling cracks that are less than one millimeter deep. Your boulder has nothing similar to meteoritical crust. billpeters
  20. Welcome to the forum raising, Your rock is standard basalt extremely common and found everywhere in Arizona. You need to explore more about meteorites and what they look like and their texture. You should visit the ASU meteoritical center. They should be open now. billpeters
  21. محمد, Welcome to the forum. The bad news is that your rock has no characteristics of a meteorite, but all the characteristics of a terrestrial rock. Take a look at your suspected rock(s). If it glistens like a crystal structure (ie: quartz) at any point in the rock, it can’t be a meteorite. If it has layers, it can’t be a meteorite. It’s sedimentary. If it has small gas bubbles (vesticles) in it. It is not a meteorite, but basaltic or sedimentary. If it is moderately magnetic it is NOT a meteorite. If there is a thick crust on it, it can’t be a meteorite. If it has very rough surfaces or is angular, except for breakage, it is not a meteorite. If it is heavy, but not much heavier than other similar sized rocks, it can't a meteorite. File off a corner or cut it. It won’t diminish its value. If there is all bright silvery metal it can’t be a meteorite. If it is all grey metal it can’t be a meteorite. If there is black crust as thin as a fingernail, and crazing on the outside of the rock, it might be a meteorite. If there are small silver specks visible in the filed off section, it might be meteorite. A simple test for your rock is to take the top off a toilet tank and make a hard streak with it on the unpolished porcelain underside. If the streak is dark red or gray it is magnetite or hematite and is not a meteorite. There are billions of magnetic rocks to be found in every type of land, none of which are meteorites. Anyone can find magnetic earth stones nearly everywhere. Approximately 4% of all rocks are moderately magnetic terrestrial rocks. Just take a strong magnet and drop into sand and you will see what I mean. Check our O Richard Norton’s, “Rocks from Space” or view a recognized meteorite collection. Keep looking down, they'er out there. billpeters
  22. Morlock, For decades it has been known that the deuterium heavy water ratio of comets and meteorites did not match Earth's oceans. It seems clear that most of all water on Earth is primeval in spite of all of the TV hype. Yes, comets and meteorites have contributed some, but more like just a few percent at best. billpeters
  23. All, Please join my Zoom short talk on the East Valley Astronomy Club monthly meeting tonight at 7:00 p.m. MST August 21, 2020, that's -7 Greenwich Mean Time same as California. You will need to send an invite to participate in advance for the Zoom. You are welcome to stay for the main speaker who follows. If you would like an invitation to upcoming virtual meetings, please send a note to our VP at vp@evaconline.org. Join the Fun! billpeters
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