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Oct
24
comment How are stellar elemental abundances quoted?
So, not natural logarithm.
Oct
24
comment How are stellar elemental abundances quoted?
@Py-ser I already did in my original post of the question. To quote myself, "Close to the bottom of page 4 of this article (marked as page 164 in the upper left corner)"
Oct
23
comment How are stellar elemental abundances quoted?
@Py-ser, no the equations are not numbered. It's an inline equation to boot.
Oct
21
comment How do scientists know that a rock found on Earth came from Mars?
As a sidenote, if you go to the Smithsonian Museum of Natural History in Washington, D.C., you can actually touch a fragment of a meteorite believed to be from Mars.
Oct
21
comment How did the Mars satellites “take cover” from the recent comet flyby?
My question wasn't how to gauge whether the encounter with comet would affect instrument quality, but whether changing the orbit itself will affect the spacecrafts' ability to fulfil their primary missions in relation to Mars.
Jul
11
comment Sloan digital sky survey galaxies
This question may be more appropriate to ask the SDSS collaboration itself: helpdesk@sdss3.org
Jul
10
comment What is the difference between a dwarf spheroidal galaxy and a globular cluster?
This is incorrect. There are many so-called "satellite" galaxies that orbit the Milky Way without orbiting the Local Group's center. Check out this Wikipedia article for a list: en.wikipedia.org/wiki/List_of_Milky_Way%27s_satellite_galaxies
Jul
9
comment Is a wavy path possible for a shooting star?
The meteor that the OP observed was in Earth's atmosphere; other planets won't be affecting the meteor's trajectory in such a case, while Earth's atmosphere will have a significant effect.
May
29
comment Recommendation for introductory cosmology text
Could this course be taken at my own pace?
May
20
comment Satellite/Planetary Orbits
I wasn't looking at a rotating frame, but your comment is valid for a rotating frame.
May
7
comment Is dust extinction/reddening caused by Rayleigh scattering or some other physics phenomenon (or both)?
I am talking about interstellar/intergalactic extinction.
Apr
17
comment Red Moon a Characteristic of all Total Lunar Eclipses?
Indeed, I do understand the process. Your information on how volcanic eruptions affect the appearance of the moon was enlightening. Barring volcanic eruptions or some other source of an excess of ash/dust in the air, will the moon always appear red during a total eclipse?
Dec
19
comment What can be seen with a 4.5" telescope
My telescope came with a 20mm and a 5mm eyepiece, as well as a Barlow lens, so I should be good to go.
Dec
19
comment What can be seen with a 4.5" telescope
My telescope is f/8.
Dec
19
comment What can be seen with a 4.5" telescope
I am at 40.75$^\circ$ north.