1,807 reputation
2927
bio website skepsi.me
location
age 22
visits member for 3 years, 4 months
seen 2 days ago

Jul
25
accepted Is there a method to estimate the atomic yield of a supernova of a given size?
Jul
20
comment Is there a method to estimate the atomic yield of a supernova of a given size?
Thank you for your answer, but what were my simplifying assumptions?
Jul
20
asked Is there a method to estimate the atomic yield of a supernova of a given size?
Jun
29
answered Curiosity Rover (MSL): specification / dimensions
Jun
21
accepted Can a moon have another large body as a satellite, and are there any examples of such?
Jun
20
comment Recommend good book(s) about the “scientific method” as it relates to astronomy/astrophysics?
Annual Review - very nice, I did not know about this.
Jun
16
accepted Could the earth have another moon?
Jun
16
comment What happen when two galaxies collide?
@Cameron: Don't worry about it. I'm not an astronomer either, I'm just going off of what I know so far. We're all here to learn and to teach; that's what these sites were designed for.
Jun
14
comment Is a rogue 'exoplanet' classed as a exoplanet?
I don't think it's classed as either a planet or an exoplanet. It's classed as a rogue planet. Rogue isn't necessarily just an adjective here - it's part of the designation. Sure, it may not be technically accurate, but, then again, things like planetary nebulae have nothing to do with planets, yet the name remains as it is.
Jun
14
comment Can a moon have another large body as a satellite, and are there any examples of such?
+1 for mentioning the Death Star. :]
Jun
14
asked Can a moon have another large body as a satellite, and are there any examples of such?
Jun
14
comment What happen when two galaxies collide?
@Cameron: The funny thing is that, as you said, although the stars themselves don't interact much (except gravitationally) during the collision, the gas and dust do interact, and sometimes form such "starburst" regions, like the Antennae Galaxy which you referenced.
Jun
14
comment Could the earth have another moon?
Thanks for the info. However, the ISS is usually between 350 and 400 km above the Earth's surface, yet it still needs periodic boosts every few months because of atmospheric drag. 100 km is nowhere near high enough to escape the Earth's atmosphere completely.
Jun
14
asked Could the earth have another moon?
Jun
14
comment Why does a black hole have a finite mass?
Note that not all theories explain a black hole as a singularity. There are some exotic ideas out there, but in some cases the black hole is simply extremely dense, but not necessarily infinitely dense (but still dense enough to have an event horizon). The singularity arises from relativity.
Jun
13
answered Recommend good book(s) about the “scientific method” as it relates to astronomy/astrophysics?
Jun
13
comment What do the colors in false color images represent?
To go along with both Eric's and Tigran's explanations, this image shows the color mappings of the famous image of the Eagle Nebula. Notice that the colors used (blue, green, and red) don't exactly match the colors they represent. A true color image, on the other hand, is very different (mostly red due to H-alpha). Still, your eye isn't sensitive enough to perceive this color.
Jun
13
comment Does the Moon's core still contain significant heat?
Instead of commenting on your answer, you should just edit it to include more info.
Jun
13
accepted Calculations of apparent magnitude
Jun
13
comment Calculations of apparent magnitude
Good point on the bolometric luminosities - the B-V index of Vega is indeed quite low (listed as 0.00 on Wikipedia, actually).