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Results tagged with observational-astronomy
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user 40796
Questions about the techniques and practice of observing the night sky.
6
votes
3
answers
192
views
Are apparent magnitudes corrected for extinction at zenith?
For example, according to Google, the apparent magnitude of the sun is $-26.74^m$.
Is this the apparent magnitude viewed through Earth's atmosphere when the object is at zenith?
(Assuming most favorab …
- 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