c.). It is based on the catalogue of VOUTE
mentioned above.

Regarding their distribution in the sky we find 11 in the galactic
equator squares and 7 outside. A large radial velocity seems therefore
to be a galactic phenomenon and to be correlated to a great distance
from us. Of the 18 stars in consideration there is only one at a
distance smaller than one siriometer and 2 at a distance smaller than 4
siriometers. Among the nearer ones we find the star (050744), identical
with C. P. D. 5h.243, which was the "second" star with great proper
motion. These stars have simultaneously the greatest proper motion and
very great linear velocity. Generally we find from column 9 that these
stars with large radial velocity possess also a large proper motion. The
mean value of the proper motions amounts to 1".34, a very high value.

In the table we find no star with great apparent luminosity. The
brightest is the 10th star in the table which has the magnitude 5.1. The
mean apparent magnitude is 7.7. As to the absolute magnitude (_M_) we
see that most of these speedy stars, as well as the stars with great
proper motions in table 3, have a rather great _positive_ magnitude and
thus are absolutely faint stars, though they perhaps may not be directly
considered as dwarf stars. Their mean absolute magnitude is +3.0.

Regarding the spectrum we find that these stars generally belong to the
yellow or red types (G, K, M), but there are 6 F-stars and, curiously
enough, two A-stars. After the designation of their type (A2 and A3) is
the letter _p_ (= peculiar), indicating that the spectrum in some
respect differs from the usual appearance of the spectrum of this type.
In the present case the peculiarity consists in the fact that a line of
the wave-length 448.1, which emanates from magnesium and which we may
find on plate III in the spectrum of Sirius, does not occur in the
spectrum of these stars, though the spectrum has otherwise the same
appearance as in the case of the Sirius stars. There is reason to
suppose that the absence of this line indicates a low power of radiation
(low temperature) in these stars (compare ADAMS).

TABLE 4.

_STARS WITH THE GREATEST RADIAL VELOCITY._

[Transcriber's Note: To conserve space (ad) is used in place of
([alpha][delta]).]

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