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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
140 114,021
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 45,207
Is there such a electronic device that measures the current Longitude and Latitude of your current position on the...
T 09:37 PM
berkeman
1 61
I am writing a paper on the collision of two galaxies. I would like advice on using the right method to complete this...
T 07:07 PM
marcus
2 221
Hello everyone, I'm new here. I'm a space engineering student and every time I learn something 1000 new questions...
Y 05:10 PM
martiandawn
3 316
http://science.nasa.gov/science-news/science-at-nasa/2014/26aug_rosetta/ Landing is expected in mid-November. ...
Y 01:28 PM
marcus
1 211
They're the first water clouds ever seen beyond our solar system by Ken Croswell, author of The Alchemy of the...
Aug25-14 05:20 PM
CygnusX-1
0 452
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
2 300
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 1,017
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
8 538
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
4 429
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
6 472
A thread on this forum Plans for Asteroid Mining has more than 9000 views. From that I conclude that belief that...
Aug22-14 06:05 AM
anorlunda
4 525
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
6 497
Or is it too soon?
Aug21-14 07:57 PM
Chronos
4 434
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 31,359
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
8 639
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
1 384
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
2 398
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
1 368
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
6 781
Or is earth the only world in the inner solar system with caves.
Aug15-14 11:21 PM
AlephZero
7 675
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
1 533
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
1 427
I've researched multiple histories of Greek astronomy, and have not found a satisfactory answer to this. When...
Aug14-14 02:56 PM
Chronos
3 498
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
1 391
Hello All, Padmanabhan's discussion of dynamics mentions that in general the two dimensional harmonic oscillator...
Aug13-14 11:40 PM
victorvmotti
2 483
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
9 716
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
7 874
I invented my own phrase for a sky gazing experience; "Perfect Full Moon" It is something that I think most people...
Aug12-14 11:07 AM
anorlunda
4 597
I'd like to have two main questions about it. 1. Radiation protection : theoretically, were thick leaded glass...
Aug11-14 03:12 PM
Ryan_m_b
17 974
Disclaimer: I'm not a physicist I've never quite grasped interstellar gas clouds (i.e. the material for new stars)...
Aug9-14 06:20 PM
Dotini
22 7,149
With this post I am hoping someone would be kind enough to lead me in the right direction. I am a layman who knows...
Aug9-14 02:48 PM
soulmartyr
8 762
I could not find a thread about this (and I hope I don't start a duplicate one :smile:). I got a mail from a friend...
Aug7-14 12:30 AM
Drakkith
4 1,049
These papers, http://arxiv.org/abs/1402.4119 and http://arxiv.org/abs/1402.2301, make a case for direct detection of...
Aug6-14 10:39 PM
DennisN
9 1,363
I am currently autodidacting the basics of astrophysics, and I of course came across the term specific intensity. The...
Aug6-14 04:08 AM
litup
12 794
I am using the C library that comes with the book Astronomical Algorithms by Jean Meeus...
Aug5-14 08:00 AM
tfr000
3 2,557
Can two objects have same world line in Minkowski Space, if they are having same speeds ?
Aug5-14 01:09 AM
Simon Bridge
1 534
Hello. I would like to know. Does matter when heading towards a black hole then crossing the event horizon threshold...
Aug4-14 11:05 PM
Nugatory
3 668
Is it possible to calculate the entire orbit of an interstellar piece of rock that has entered our solar system from...
Aug4-14 10:38 PM
puncheex
9 1,454
Does anyone have a Matlab file for solving the stellar structure equations that they wouldn't mind passing along? I'm...
Aug4-14 12:28 PM
CommandoCody
5 821
Think about this hypothesis: Solar activity changes the distribution of mass on the sun. This change could move the...
Aug3-14 09:28 PM
D H
4 659

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