This is a list of known galaxies within 3.8 megaparsecs (12.4 million light-years) of the Solar System, in ascending order of heliocentric distance, or the distance to the Sun. This encompasses about 50 major Local Group galaxies, and some that are members of neighboring galaxy groups, the M81 Group and the Centaurus A/M83 Group, and some that are currently not in any defined galaxy group. The list aims to reflect current knowledge: not all galaxies within the 3.8 Mpc radius have been discovered. Nearby dwarf galaxies are still being discovered, and galaxies located behind the central plane of the Milky Way are extremely difficult to discern. It is possible for any galaxy to mask another located beyond it.Intergalactic distance measurements are subject to large uncertainties. Figures listed are composites of many measurements, some of which may have had their individual error bars tightened to the point of no longer overlapping with each other. (Wikipedia).
Astronomy - Ch. 28: The Milky Way (23 of 27) Companion Galaxies
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn the locations and names of some of our “neighbor” galaxies. Next video in this series can be seen at: https://youtu.be
From playlist ASTRONOMY 28 THE MILKY WAY GALAXY
Astronomy - Ch. 29: Galaxies (3 of 14) Comparing Galaxy types
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will compare the different characteristics of spiral, barred spiral, elliptical, and irregular galaxies. Previous video in this s
From playlist ASTRONOMY 29 GALAXIES
Astronomy - Ch. 29: Galaxies (9 of 14) Irregular Galaxies
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn irregular galaxies tend to be small and irregular in size. They are rich in interstellar gas and dust and active star f
From playlist ASTRONOMY 29 GALAXIES
Astronomy - Ch. 29: Galaxies (7 of 14) Elliptical and Lenticular Galaxies
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn elliptical galaxies are the most common galaxies in the universe (1/3 to ½). They vary in size from a few million stars
From playlist ASTRONOMY 29 GALAXIES
Astronomy - Ch. 29: Galaxies (2 of 14) What Type of Galaxies are There?
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn there are 4 types of galaxies: spiral, barred spiral, elliptical, and irregular galaxies. Previous video in this serie
From playlist ASTRONOMY 29 GALAXIES
Astronomy - Ch. 29: Galaxies (10 of 14) Determining Distance
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn the various ways (radar, stellar parallax, spectroscopic parallax, cepheid variables, Tully-Fisher, type 1A supernovae,
From playlist ASTRONOMY 29 GALAXIES
Astronomy - Ch. 29: Galaxies (5 of 14) Spiral Galaxies
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn about the spiral galaxy. Spiral galaxies make up 72% of observed galaxies, 25% of all galaxies, but in our local group
From playlist ASTRONOMY 29 GALAXIES
Astronomy - Ch. 29: Galaxies (8 of 14) Determining the Size of a Galaxy
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn how astronomers mathematically determine the size of galaxies. Previous video in this series can be seen at: https://y
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Practical, Fast, Beyond 2-pt Statistics for Large Scale Structure Clustering by Thomas Abel
PROGRAM LESS TRAVELLED PATH TO THE DARK UNIVERSE ORGANIZERS: Arka Banerjee (IISER Pune), Subinoy Das (IIA, Bangalore), Koushik Dutta (IISER, Kolkata), Raghavan Rangarajan (Ahmedabad University) and Vikram Rentala (IIT Bombay) DATE & TIME: 13 March 2023 to 24 March 2023 VENUE: Ramanujan
From playlist LESS TRAVELLED PATH TO THE DARK UNIVERSE
First Images: James Webb Space Telescope’s New View of the Cosmos
#briangreene #jwst #jameswebbspacetelescope Scientists have waited a generation to see the stunning images that the James Webb Telescope is now delivering. In a live online Q+A, Brian Greene will speak with Nobel Prize-winner John Mather and other key project scientists about the telescope
From playlist WSF Latest Releases
Astronomy - Ch. 29: Galaxies (6 of 14) Barred Spiral Galaxies
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn about 2/3 of all spiral galaxies are barred spirals, the Milky Way, and over time (billions of years) spiral galaxies b
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Summer App Space: Lecture 16 - Dr. C. Corbett Moran – 7/21/17
The Summer App Space is a summer program for LA students and teachers to learn programming while getting paid to do fun space-related projects. Learn more: http://summerappspace.com
From playlist Summer App Space - 2017
Open Space 16: Breakthrough Starshot. Traveling To Other Stars, With Prof. Avi Loeb
Professor Avi Loeb is one of the hardest working astrophysicists in the field, writing a blistering number of academic papers on fascinating topics like the Fermi Paradox, the habitability of other worlds, black holes, and the history of the early universe. He's also one of the people work
From playlist Oumuamua Solar Sail Playlist
Incredibly Accurate Map of Nearby 10 Parsec Around The Solar System
I wrote a foreword for this awesome Sci-Fi book here: https://amzn.to/3aGrg0I Get a Wonderful Person shirt: https://teespring.com/stores/whatdamath Alternatively, PayPal donations can be sent here: http://paypal.me/whatdamath Hello and welcome! My name is Anton and in this video, we will
From playlist Unusual Exoplanets
R136a1 - Visiting In Space Engine
Hello and welcome to What Da Math! In this video, we will visit R136a1 - the most massive star found. Patreon page: https://www.patreon.com/user?u=2318196&ty=h Enjoy and please subscribe. Other videos here: https://www.youtube.com/playlist?list=PL9hNFus3sjE7jgrGJYkZeTpR7lnyVAk-x Twitte
From playlist Space Engine
GCSE level Cosmology covering: universe, galaxy, stars, fermi paradox, alien life, sun, milky way, andromeda, light year, nearest star
From playlist GCSE Physics Revision
Funding XCOM - II: Understanding Civilization Growth - Extra Credits
Do we need a real-life XCOM program? What assumptions are we making about the existence of other, alien life that aren't covered by the Drake equation? Subscribe for new episodes every Wednesday! http://bit.ly/SubToEC (---More below) (Original air date: February 20, 2013) _______ Get you
From playlist Extra Credits (ALL EPISODES)
Unexplained Black Hole Systems Close to Earth Confirmed By Gaia
Get a Wonderful Person Tee: https://teespring.com/stores/whatdamath More cool designs are on Amazon: https://amzn.to/3wDGy2i Alternatively, PayPal donations can be sent here: http://paypal.me/whatdamath Hello and welcome! My name is Anton and in this video, we will talk about a confirmati
From playlist Blackholes
Astronomy - Chapter 1: Introduction (5 of 10) How Did The Galaxy Form?
Visit http://ilectureonline.com for more math and science lectures! In this video I will examine "How did the galaxy form?”
From playlist ASTRONOMY 1 INTRODUCTION
Funding XCOM - I: Analyzing the Drake Equation - Extra Credits
Let's entertain ourselves by pondering the question: "Should we fund a real-life XCOM?" To begin, we should figure out what the probability of finding alien life is in the first place. Subscribe for new episodes every Wednesday! http://bit.ly/SubToEC (---More below) (Original air date: Fe
From playlist Extra Credits (ALL EPISODES)