Fred Ley
-
Αναρτήσεις
1731 -
Εντάχθηκε
-
Τελευταία επίσκεψη
-
Ημέρες που κέρδισε
1
Τύπος περιεχομένου
Forum
Λήψεις
Ιστολόγια
Αστροημερολόγιο
Άρθρα
Αστροφωτογραφίες
Store
Αγγελίες
Όλα αναρτήθηκαν από Fred Ley
-
Κατάλογος Αγοράς Αστρονομικού εξοπλισμού του 1911
Fred Ley απάντησε στην συζήτηση του/της Mich σε Αστρονομικές Εκδόσεις
There is also a few dedicated sites to older catalogs of astronomical instruments. A main site to visit is at http://geogdata.csun.edu/~voltaire/classics/ and another site http://www.europa.com/~telscope/binotele.htm and one more in Japan http://yumarin7.sakura.ne.jp/retrokan/CsiryouN2F.html I have been scanning my personal collection of catalogs that I started collecting in 1971. I have so far scanned about 4,100 pages. They are slowly being turned into pdf documents. -Fred -
Ένας ερασιτέχνης στο Λονδίνο.
Fred Ley απάντησε στην συζήτηση του/της PapGeo σε Εξορμήσεις και τόποι παρατήρησης
So, Apollo 10 "Charlie Brown" is in London. I knew that one of the Apollo Command Mudule Capsules was at the Science Museum, but forgot which one. Havn't been to the museum in decades, but it is a great place to spend lots of time at. -Fred -
The four images that you posted are great. I was just recently reading about the island of Ikaria and its ruins. It looks like a nice "out-of-the-way-place"-which I like. Of course I could be comepletely wrong and the island gets inundated with visitors during the sumer months. I will see if I can locate your "tower" and learn a bit more about it. Out of curiosity, do you live on the island? -Fred -
Finally, Sky & Telescope from 1941-2009 is now available on DVD. Further information at this link... http://media.skyandtelescope.com/documents/CL-DVD_Collection_Landing_Page.html?utm_medium=NLEmailPush&utm_campaign=SKYDVD210NLAD&utm_source=SKYNL It has been years that I kept asking the folks at the magazine "When?" and now it has finally happened. -Fred
-
On page 60 and 61 of the July issue of Sky & Telescope there is an interesting article on the planet Pluto and the path that it makes in its orbit through Sagittarius. Starting around July 4 the planet will pass in front of a dark nubula and thus be easy to distinguish as there will not be any background stars to make identification difficult. The map shows Plutos path through mid October. -Fred
-
Here is a view of a few different Obsession Telescopes models. You can read more about them at www.obsessiontelescopes.com Image taken in 1993 at RTMC. -
Alert for a possible stellar occultation by Pluto's sat Nix
Fred Ley απάντησε στην συζήτηση του/της vtsamis σε Παρατήρηση Πλανητών
Now this is really interesting. Are you going to attempt it? I don't think to many persons will be monitoring this type of an event-well, ok, I could be proven wrong. If you attempt it, I hope that you get good results. -Fred -
4η Πανελλήνια Εξόρμηση Ερασιτεχνών Αστρονόμων
Fred Ley απάντησε στην συζήτηση του/της astrovox σε Η αστρονομία στην Ελλάδα
Sounds like a lot of fun. Perhaps I'll be able to make it. -Fred -
Very nice image. I am wondering what the bright area to the right is. I wonder if there is a high-res image of this galaxy taken with the Hubble? Off to go and look for it. The dust lane is intriguing too. -Fred -
Ilias, A place that you may want to visit is the Eugenidis Planetarium Library at Phaleron. It has a wonderful library that also has a section on astronomy. I "discovered" the place in 1971 when I was 14 years old and spent many evenings there going over their collection of astronomy books and journals. I also signed up for a library card, which I still have, in order to borrow books. Nightwatch by Terence Dickinson, which is now in its 4th edition, is a very good book. The 4th edtion is updated through the year 2018. -Fred
-
Τρεις εντυπωσιακοί χάρτες από το National Geographic
Fred Ley απάντησε στην συζήτηση του/της Mich σε Αστρονομικές Εκδόσεις
Here is a link to some of the other space oriented maps from the NGS. http://ngmapcollection.com/store.aspx?cid=1543 -Fred -
Nice shot. I see that you had to do battle with the seeing conditions. -Fred -
Here is a nice 6-inch F4 Dobsonian. Slide taken in 1988 at the RTMC. -
Here is a nice 6-inch F14.7 Tri-Schiefspiegler. Slide taken at the 1985 RTMC. My firend, on the left, acting kind of funny. -
Here is a 1.5-inch Newtonian belonging to Jack Eastman. Slide taken at the 1993 RTMC. What is unique about this telescope is that the 1.5-inch mirror came from the core of the very first Celestron Schmidt Cassegrain telescope manufactured. Jack worked at Celestron back in the early days. He is with the Denver Astronomical Society and here is link to a few interesting articles about him. He observers with his old Alvan Clark 6-inch refractor. The link is... http://www.denverastrosociety.org/eastmanfiles.html -
Yes, the small hole is for the finder. The telescope is simply sitting on the ground. The mount is an equatorial mount. That's the nice thing about the Riverside Telescope Makers Conference, you never know what someone will bring to the event. -Fred -
Here is an interesting telescope with a triangular configuration. It appears to be an 8-inch and it has the viewfinder incorporated internally. The small hole to the side of the main aperture is for the viewfinder which is viwed through with the lower eyepiece. I noticed that the three legs for the pier seem to be somewhat on the short side. Of course it may be a short as can be allowed. Slide taken at the 1992 RTMC.
-
Looks like someone captered an impact on Jupiter yesterday. There is additional information at www.spaceweather.com The impact took place near the edge of the planet at the planets rotation quickly took it away from view for some hours. Check tonight. The event was captured on video. -Fred
-
ΑΣΤΡΟΝΟΜΙΚΗ ΓΝΩΣΗ ΣΕ ΕΛΛΗΝΙΚΑ ΠΑΛΑΙΤΥΠΑ ΒΙΒΛΙΑ
Fred Ley απάντησε στην συζήτηση του/της Mich σε Αστρονομικές Εκδόσεις
This is my oldest book that I have on astronomy. -Fred
-
ΑΣΤΡΟΝΟΜΙΚΗ ΓΝΩΣΗ ΣΕ ΕΛΛΗΝΙΚΑ ΠΑΛΑΙΤΥΠΑ ΒΙΒΛΙΑ
Fred Ley απάντησε στην συζήτηση του/της Mich σε Αστρονομικές Εκδόσεις
This is very interesting historical items. Very nice. -Fred -
After viewing the choices as to where I could post this article, I settled for this list as I could not find a "Historical Astronomy" list. This brief article, written by the late director of the National Observatory of Athens, gives us a brief glimpse into astronomical happenings during World War II in Greece. The article was published in 1946 in the periodical "The Observatory" in the United Kingdom. -Fred
-
Hey Jean, Cool! So you got a 10-inch Dob. You will now have unlimited fun observing the night sky. Like Carl Sagan used to say "...billions and billions..." is how many objects there are to observe. So, no need to worry about running out of objects to view. Post a photo of the new scope when you can. Have fun, Fred
-
OK, three in a row. That big round ball of feta cheese makes an impressive backdrop to the scene. Nice! -Fred -
Hey! Another neat image. OK, so like, where is this castle located on Euboea? I first thought of the castle at Haristos, located at the southern part of the island. If it is, I am deceived by the angle that the image was taken. -Fred -
Real nice image you got there. The first thing that I readily noticed is that the church is built on an archaeological site. The large marble block used in the foundational elements give it away. The two scattered pieces to the left also help in the analysis of the site. -fred
