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seen Sep 11 at 22:44

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.