A galaxy is an assembly of stars, gas, dust, empty and perhaps essentially dark matter, sometimes containing a supermassive black hole in its center.
The Milky Way, the galaxy in which the solar system is located, has a few hundred billions of stars (1011), and has an extension of the order of 80,000 light years. A report of the Gaia European Space Mission released on April 25, 2018, the position of 1,692,919,135 stars of our galaxy, which represents less than 1% of the entire stars present in our galaxy. Most typical galaxies have a similar number of stars, but there are also dwarf galaxies with about ten billion stars (1010), and giant galaxies with several thousand billions of stars (1012) . On the basis of these figures and the size of the observable universe, it is estimated that it has a few hundred billions of significant mass galaxies. The population of dwarf galaxies is however very difficult to determine, because of their mass and very low brightness. It could therefore contain up to 2,000 billion galaxies, but this can only be confirmed with the observations of future telescopes (such as the European giant telescope or the telescope of thirty meters).
Galaxies as a large stellar systems have been highlighted during the 1920s, mainly by the American Astronomer Edwin Hubble, although first data indicating this fact goes back to 1914. Galaxies are three types of morphological types. Main: elliptics, spirals, irregular. A more extensive description of the types of galaxies has been given at the same time by Hubble and has since been named Hubble sequence.
All stars are not located in the galaxies. If it seems established that it is within the galaxies that the stars are formed, they are likely to be expelled, either because of interactions between galaxies, either because of close meetings between a star and a Very massive star, like a supermassive black hole located in the center of a galaxy. There are some stars with high speed compared to their galaxy, a sign that they are no longer gravitationally linked. Such stars are therefore called fleeing stars . Several representatives of this class are known, such as SDSS J090745.0 + 024507 and Gro J1655-40, both leaving the Milky Way. The first is probably from a close encounter with the central black hole of our galaxy, SGR A , the second is undoubtedly from an asymmetric supernova whose compact residue was expelled from the region where the explosion had place.
There is no doubt that whatsapp is the most used messaging application on mobile devices, and, every day, millions of people use it to talk with their friends, family or colleagues.
Of course, the application works on IOS and Android operating systems, so you must be careful with the version you have, since whatsapp will not work forever on your mobile phone.
If your mobile is recent you do not have to worry about. However, every so often whatsapp ceases to be compatible with certain older models, and this will happen again on November 1 .
Do you have any doubts about if your mobile can continue running whatsapp? Then here you have a complete list of all iOS and Android mobiles that will cease to be compatible with the app in a few days.
Mobiles that will cease to be compatible with whatsapp since November 1
WhatsApp has announced that the app will stop working on a series of mobile phones, as of next November 1st. This affects both iOS and Android.
Here we are going to share all the models that will no longer be compatible with whatsapp. This has to do with the corresponding version of Android and IOS that your device has.
The official WHATSAPP website informs that L mobile phones with Android 4.0.4 or lower will no longer be compatible with the application .
If your mobile phone is in the following list or and its version of Android is outdated, you can no longer be able to continue using whatsapp … and there is no possible solution.
We are going to detail all the models that, as of November 1, will no longer be compatible with whatsapp. Brands such as Samsung, LG, Sony, Huawei, Alcatel and others are included.
WhatsApp will stop working on the following Android mobile phones:
Galaxy Trend Lite
Galaxy Trend II
Galaxy S3 Mini
Galaxy Xcover 2
Galaxy Ace 2
Optimus L3 II Dual
Best L5 II
Optimus L5 dual
Best L3 II
Optimus L7 II Dual
Best L7 II
Optimus F6 ENACT
Optimus L4 II Dual
Best L4 II
Best L2 II
Optimus Nitro HD
Optimus 4x HD
Ascend D Quad XL
Ascend D1 Quad XL
Ascend P1 S
Grand x Quad V987
Alcatel and other brands
Archos 53 Platinum
HTC Desire 500
Caterpillar Cat B15
Wiko Cink Five
According to the official WHATSAPP website, mobiles with lower IOS operating system will no longer be compatible with the application .
Luckily, it only affects three models, since most iPhone models have version 10.0.0 of at least iOS.
Remember that, If you have one of these iPhone, you can no longer use whatsapp from next November 1 .
These are the iOS mobile phones that will cease to be compatible with whatsapp:
iPhone 6s plus
If you have any of these mobile phones or your version of the operating system is lower than the required, you will have to say goodbye to whatsapp forever. Yes, it is irreversible and definitive.
Do you plan to change mobile phone for this measure? Is your mobile on the list? Remember that this measure will come into force as of November 1 .