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Astronomy & Astrophysics

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Jan16-12 Greg Bernhardt
aandc, library, reference Sticky Thread Pinned: A&C reference library ( 1 2 3 ... Last)
Use this topic to post links to helpful/informative websites about astronomy & cosmology.
Jul3-14 06:29 PM
marcus
140 114,280
Hellfire requested that I post a list of classic papers that one could use for reference when trying to understand the...
Nov28-12 01:12 AM
stargazer3
17 45,306
Why haven't we gone back to the moon? Seems like we could save a whole lot of money and time if we were to go back...
T 08:34 PM
Drakkith
18 268
In our time epoch and location in space, it seems that even if we received signals of some extraterrestial...
T 05:49 PM
Chronos
12 488
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I am writing a paper on the collision of two galaxies. I would like advice on using the right method to complete this...
T 02:42 PM
vociferous
5 446
I'm trying to create a chronological timeline of the formation of solids in the solar system with examples of...
T 12:05 PM
connorp
0 78
They're the first water clouds ever seen beyond our solar system by Ken Croswell, author of The Alchemy of the...
T 10:18 AM
Greg Bernhardt
1 688
How can we estimate the age of the universe if we don not know how big it is? It is often said that our visible...
T 07:38 AM
Simon Bridge
7 251
Or is earth the only world in the inner solar system with caves.
T 01:20 AM
Chronos
17 860
Just something I've been chewing on. Let's create a number line: In the number line, the values approach zero...
Y 03:39 PM
mathman
1 238
The most widely cited figures are 1.4 solar masses and 10 km radius. However, tracing the references back to their...
Y 10:29 AM
zyxwv99
0 196
Hello smart people! I am trying to make a simulation of an orbit with C#. I have come so far that I more or less...
Aug30-14 02:13 PM
martiandawn
5 257
New measurements claim to resolve the controversy over the distance to the Pleiades but have in fact only reignited...
Aug30-14 09:17 AM
Simon Bridge
1 306
So I've been playing some Kerbal Space Program, and it's taught me a couple things. Primarily, that circularizing an...
Aug30-14 09:01 AM
Ophiolite
2 284
I'd like to have two main questions about it. 1. Radiation protection : theoretically, were thick leaded glass...
Aug29-14 04:17 PM
mfb
22 1,150
hi guys, I have been doing a research on white dwarf stars and chanrashekhar limit. I need to plot a graph for the...
Aug29-14 01:45 PM
Ken G
5 1,973
I wish to replicate the simulations and values obtained in the following paper but I do not know where to start my...
Aug29-14 12:57 AM
Artemisia
0 238
A thread on this forum Plans for Asteroid Mining has more than 9000 views. From that I conclude that belief that...
Aug28-14 05:40 AM
Ophiolite
5 610
Is there such a electronic device that measures the current Longitude and Latitude of your current position on the...
Aug27-14 09:37 PM
berkeman
1 335
Hello everyone, I'm new here. I'm a space engineering student and every time I learn something 1000 new questions...
Aug26-14 05:10 PM
martiandawn
3 417
http://science.nasa.gov/science-news/science-at-nasa/2014/26aug_rosetta/ Landing is expected in mid-November. ...
Aug26-14 01:28 PM
marcus
1 380
How would I get a Listing or a Map of All the Constellation Boundaries in Right Ascension and Declination.
Aug25-14 04:14 PM
kjhskj75
2 369
Hello all, I have a question on cosmic redshift and I am really hoping that one of you can solve this for me, as...
Aug25-14 08:47 AM
Ken G
14 1,092
Hi Just wondering if 16.4 GHz (or so) is a commonly encountered frequency in radio astronomy ? Because I'm...
Aug25-14 03:44 AM
neilparker62
8 626
Hello everybody, I'm trying to know, in a keplerian orbit, how to calculate the area of a swaped area; since the...
Aug24-14 01:54 PM
martiandawn
4 532
Folks, I'm struggling to write a monograph that details the potential of a rotating supernova directing a gamma ray...
Aug22-14 09:16 PM
soulmartyr
6 546
Most people come up with their own internal reasoning for things like this that have not been explained. I was...
Aug21-14 08:26 PM
Drakkith
6 565
Or is it too soon?
Aug21-14 07:57 PM
Chronos
4 499
Hello, I was just curious why do all of the planets in the solar system orbit in approximately the same plane? Why...
Aug19-14 09:56 AM
Jimster41
25 31,646
Hey! I'm new here and I just wanted to ask a question and maybe I'll come back here once I have started college in a...
Aug18-14 08:59 PM
Drakkith
8 702
http://i.imgur.com/w9PGgXi.jpg LEDA 074886, also known as PGC 74886, is a dwarf galaxy with a rare rectangular shape,...
Aug18-14 08:03 PM
soulmartyr
1 441
Hi, quick question for you guys. I was having a discussion the other day with a friend of mine, about whether it was...
Aug18-14 05:02 PM
SatSat
2 458
I'm rather new here so please forgive me if this is answered somewhere else, but I was unable to find it while...
Aug17-14 08:54 PM
Creator
1 427
i had this science project in school on black holes and i came an article stating we live in a black hole theory link...
Aug16-14 09:57 AM
mfb
6 849
You must have heard the recent news that the first woman ever, Maryam Mirzakhani, just won the Fields Medal. ...
Aug15-14 05:33 AM
Simon Bridge
1 587
What could we learn if we found the second moment of mass for a taurus and use E = mc2 to find second moment of energy?
Aug15-14 04:28 AM
Simon Bridge
1 489
I've researched multiple histories of Greek astronomy, and have not found a satisfactory answer to this. When...
Aug14-14 02:56 PM
Chronos
3 553
Comets have what is called an "induced magnetosphere". Has anyone been able to document polarity in any of the...
Aug14-14 02:14 PM
Drakkith
1 444
Hello All, Padmanabhan's discussion of dynamics mentions that in general the two dimensional harmonic oscillator...
Aug13-14 11:40 PM
victorvmotti
2 538
What exactly does it take to figure out the orbital parameters or planets and what's the Math behind it? Can it be...
Aug13-14 11:29 PM
puncheex
9 776
A star 890,000 light-years away patrols our galactic frontier By Ken Croswell, author of The Alchemy of the Heavens...
Aug12-14 01:41 PM
CygnusX-1
7 936

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