View allAll Photos Tagged map
Edited European Space Agency image of the density of stars from data from the Gaia Mission.
Image source: www.esa.int/spaceinimages/Images/2018/08/Star_density_map
Original caption: The second data release of ESA’s Gaia mission, made in April, has marked a turning point in the study of our Galactic home, the Milky Way. With an unprecedented catalogue of 3D positions and 2D motions of more than a billion stars, plus additional information on smaller subsets of stars and other celestial sources, Gaia has provided astronomers with an astonishing resource to explore the distribution and composition of the Galaxy and to investigate its past and future evolution.
The majority of stars in the Milky Way are located in the Galactic disc, which has a flattened shape characterised by a pattern of spiral arms similar to that observed in spiral galaxies beyond our own. However, it is particularly challenging to reconstruct the distribution of stars in the disc, and especially the design of the Milky Way’s arms, because of our position within the disc itself.
This is where Gaia’s measurements can make the difference.
This image shows a 3D map obtained by focusing on one particular type of object: OB stars, the hottest, brightest and most massive stars in our Galaxy. Because these stars have relatively short lives – up to a few tens of million years – they are mostly found close to their formation sites in the Galactic disc. As such, they can be used to trace the overall distribution of young stars, star formation sites, and the Galaxy’s spiral arms.
The map, based on 400 000 of this type of star within less than 10 000 light-years from the Sun, was created by Kevin Jardine, a software developer and amateur astronomer with an interest in mapping the Milky Way using a variety of astronomical data.
It is centred on the Sun and shows the Galactic disc as if we were looking at it face-on from a vantage point outside the Galaxy.
To deal with the massive number of stars in the Gaia catalogue, Kevin made use of so-called density isosurfaces, a technique that is routinely used in many practical applications, for example to visualise the tissue of organs of bones in CT scans of the human body. In this technique, the 3D distribution of individual points is represented in terms of one or more smooth surfaces that delimit regions with a different density of points.
Here, regions of the Galactic disc are shown with different colours depending on the density of ionising stars recorded by Gaia; these are the hottest among OB stars, shining with ultraviolet radiation that knocks electrons off hydrogen atoms to give them their ionized state.
The regions with the highest density of these stars are displayed in pink/purple shades, regions with intermediate density in violet/light blue, and low-density regions in dark blue. Additional information from other astronomical surveys was also used to map concentrations of interstellar dust, shown in green, while known clouds of ionised gas are depicted as red spheres.
The appearance of ‘spokes’ is a combination of dust clouds blocking the view to stars behind them and a stretching effect of the distribution of stars along the line of sight.
An interactive version of this map is also available as part of Gaia Sky, a real-time, 3D astronomy visualisation software that was developed in the framework of the Gaia mission at the Astronomisches Rechen-Institut, University of Heidelberg, Germany.
Further details including annotated version of the map: Mapping and visualising Gaia DR2
Id 397431
A map from a book of maps dating back 600 or so years. If I remember rightly the book was published by a Dutch publishing house, written in Latin, and the map - by my calculations - is from the Safavid period whereby by Isfahan would have been the capital and Afghanistan in possession of Persia.
AeroCalifornia's 1990 routemap shows extensive service throughout northwestern Mexico and a few cities in the US. AeroCalifornia is now grounded by the Mexican aviation authorities.
Zoom into this map at maps.bpl.org.
Author: Lewis, John C.
Publisher: Lewis, John C.
Date: 1848
Location: United States
Dimension: 35x37cm
Scale: Scale not given
Call Number: G3701.E9 1848 .L49x
© Tutti i diritti riservati. L'uso delle mie foto senza permesso scritto è illegale
© All rights reserved. Use without permission is illegal. Unauthorized use, copy, editing, reproduction, publication, duplication and distribution of my photos, or any portion of them, is not allowed.
If you are interested on my photos ask me via email
Supporting Map for Letterkenny Development Variation, (Area of Town Centre Extension).
The plans will be on display until the end of January 2006.
More information at www.donegal.ie/dcc/planning/lkennyplan2.htm and www.damienblake.com/2006/01/letterkenny-development-plan-...
Malaysia used to be called Malacca. Which if you speak Greek, you'll do a bit of a double take over.
July 24, 11:49
Position: 39.30N 52.34W
Weather: Clear, occasional rain, occasional cloud
Wind: W 15 to 19 knots
Heave: 2 m
We are in the high pressure system, but the weather is not stable.
The tide movement is affecting to our speed over the ground reads over 7 knots on GPS.
At this point, we still have west wind, thus we are sure that it was a good decision to go down south.
The fist storm that we had was showed on the weather map light blue and the size was much smaller than the one we had in winter, thus we thought it wouldn't be so bad. However, the wave was hard and it went over 5 m occasionally. This might be a character of the low pressure on the Atlantic.
This time we decided to go down south to avoid the strong wind according to the weather map. We will mark the longest Day run today!
.
I just found this on the global site of LG Electronics (http://www.lge.com/general/lg_globalsite.jsp). This map links to the separate LG country sites, sorted by regions. Call me a total nerd, but check this out:
Instead of a reunified Germany, I'm seeing a thick border still running between former East Germany and West Germany (I grew up in East Germany, and I can testify that the reunification did happen.....17 years ago); instead of the Czech Republic and Slovakia, I still see the former Czechoslovakia (which ceased to exist more than 14 years ago...); the CIS is not a nation, it's a commonwealth of sovereign states - the LG map shows the former Soviet Union including the three Baltic states (that never belonged to the CIS but are members of the European Union) and Turkmenistan (which withdrew from the Commonwealth of Independent States in 2005). And: Since there's no separate LG country site for Iceland, I'm not going to mention that Iceland actually belongs to Europe and not to North America (Iceland gets tinted, too, when you roll over North America).
It appears that LG doesn't seem to acknowledge the global political situation after 1990. Sweet, sweet Cold War.
I actually kinda like these little bugs on the map if they just weren't of such a scandalous shame for a global company like LG. Nonetheless I tried to send them a mail thru their "Contact Us" mail form to suggest a slight revise of this map (hint, hint!), but their mail form was so badly coded that - after trying three times - I wasn't able to deliver the message to LG.
So let's just leave LG as the Sleeping Beauty and enjoy the good ol' times before the events of 1989.
This is a portion of the world map as of the launch date, showing some of the names of zones you can get to as you play
A map from the Worldmapper World Population Atlas: www.worldpopulationatlas.org
(c) Sasi Research Group, University of Sheffield
Day 10 of my 30 days of watches is a side scrolling world map based on NASA's topo map. The current "noon" is highlighted under the yellow sun, so the map makes one rotation per day. The local time is displayed around the tropic of Capricorn. When the button is pressed the world spins to display the map.
Google Maps as a whole worked surprising well. Missing about half the features of the regular version, but does have search, traffic, street view. Could not find "Compass Mode" though :(
39. Grand Prix Osterhas am Ostersamstag, 31. März 2018, auf der Lindenmoosstrasse in Affoltern am Albis..Foto Martin Platter
Date taken: July 2005
Place: Yukon (Caribou Crossing)
Camera: Olympus C740.
Single JPG tone-mapped with Luminance HDR.Two layers merged in Gimp with bottom layer Mantiuk06 overlaid with Fattal.
A joint publication from London Transport, British Railways and the Metropolitan Police giving comprehensive travel information for those attending the event.
It contains information covering travel by train, tube, bus, trolleybus, Green Line coach, private coach, river services and air for both Coronation Eve and on the day itself.