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Results tagged with amateur-observing
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user 40796
Questions about the observation of celestial objects by non-professional astronomers.
2
votes
Accepted
Apparent magnitude of a spherical body with specular, rather than diffuse reflectivity? How ...
This once appeared in an IAO 2003 A,B 1 problem (the first problem on the first page).
The solution here.
A summary:
Let:
Albedo of moon be $\alpha_m$
Albedo of sputnik be $\alpha_s$
Distance between …
- 342
1
vote
0
answers
81
views
How do stellar magnitude and integrated magnitudes compare, perceptually?
(P.S. this is naked eyed)
Magnitudes are easily defined for point-like objects i.e. stars. However, for extended objects, the "magnitudes" quoted are actually integrated magnitudes.
For instance, Wiki …
- 342
7
votes
0
answers
172
views
Angular resolution of naked eye at night; type of vision used
It appears that most sources quote the angular resolution of the eye as 1', regardless of day and night.
For instance,
Naked eye
Seconds of Arc and the Unaided Eye
However, the following websites give …
- 342