s the contrary.
It is further observable, that both fix'd Stars and Planets, the neerer
they appear to the Horizon, the more red and dull they look, and the more
they are observ'd to twinkle; in so much, that I have seen the Dog-starr to
vibrate so strong and bright a radiation of light, as almost to dazle my
eyes, and presently, almost to disappear. It is also observable, that those
bright scintillations neer the Horizon, are not by much so quick and sudden
in their consecutions of one another, as the nimbler twinklings of Stars
neerer the Zenith. This is also notable, that the Starrs neer the Horizon,
are twinkled with several colours; so as sometimes to appear red, sometimes
more yellow, and sometimes blue, and this when the Starr is a pretty way
elevated above the Horizon. I have further, very often seen some of the
small Starrs of the fifth or sixth magnitude, at certain times to disappear
for a small moment of time, and again appear more conspicuous, and with a
greater luster. I have several times, with my naked eye, seen many smaller
Starrs, such as may be call'd of the seventh or eighth magnitude to appear
for a short space, and then vanish, which, by directing a small _Telescope_
towards that part they appear'd and disappear'd in; I could presently find
to be indeed small Starrs so situate, as I had seen them with my naked eye,
and to appear twinkling like the ordinary visible Stars; nay, in examining
some very notable parts of the Heaven, with a three foot Tube, me thought I
now and then, in several parts of the constellation, could perceive little
twinklings of Starrs, making a very short kind of apparition, and presently
vanishing, but noting diligently the places where they thus seem'd to play
at boe-peep, I made use of a very good twelve foot Tube, and with that it
was not uneasie to see those, and several other degrees of smaller Starrs,
and some smaller yet, that seem'd again to appear and disappear, and these
also by giving the same Object-glass a much bigger aperture, I could
plainly and constantly see appear in their former places; so that I have
observ'd some twelve several magnitudes of Starrs less then those of the
six magnitudes commonly recounted in the Globes.
It has been observ'd and confirm'd by the accuratest Observations of the
best of our modern Astronomers, that all the Luminous bodies appear above
the Horizon, when they really are below it. So that the Sun and Moon have
both been seen abov
|