ster worth a
moment's attention is No. 1479, above and to the left of Sirius. We had
better use the five-inch for this, as many of the stars are very faint.
Not far away we find the double star , whose components are of the fifth
and eighth magnitudes, distance 2.8", p. 343 deg.. The small star is pale
blue. Cluster No. 1512 is a pleasing object with our largest aperture.
In No. 1511 we have a faint nebula remarkable for the rows of minute
stars in and near it. The star gamma is an irregular variable. In 1670
it is said to have almost disappeared, while at the beginning of the
eighteenth century it was more than twice as bright as it is to-day. The
reddish star delta is also probably variable. In my "Astronomy with an
Opera Glass" will be found a cut showing a singular array of small stars
partly encircling delta. These are widely scattered by a telescope, even
with the lowest power.

Eastward from Canis Major we find some of the stars of Argo Navis. Sigma
1097, of the sixth magnitude, has two minute companions at 20" distance,
p. 311 deg. and 312 deg.. The large star is itself double, but the distance,
0.8", p. 166 deg., places it beyond our reach. According to Burnham, there
is yet a fourth faint star at 31", p. 40 deg.. Some three degrees and a half
below and to the left of the star just examined is a beautiful star
cluster, No. 1551. Nos. 1564, 1571, and 1630 are other star clusters
well worth examination. A planetary nebula is included in 1564. With
very powerful telescopes this nebula has been seen ring-shaped. Sigma
1146, otherwise known as 5 Navis, is a pretty double, colors pale yellow
and blue, magnitudes five and seven, distance 3.25", p. 19 deg.. Our
three-inch will suffice for this.

[Illustration: MAP NO. 3.]

North of Canis Major and Argo we find Monoceros and Canis Minor (map No.
3). The stars forming the western end of Monoceros are depicted on map
No. 1. We shall begin with these. The most interesting and beautiful is
11, a fine triple star, magnitudes five, six, and seven, distances 7.4",
p. 131 deg., and 2.7", p. 103 deg.. Sir William Herschel regarded this as one of
the most beautiful sights in the heavens. It is a good object to try our
three-inch on, although it should not be difficult for such an aperture.
The star 4 is also a triple, magnitudes six, ten, and eleven, distances
3.4", p. 178 deg., and 10", p. 244 deg.. We should glance at the star 5 to
admire its fine orange color. In 8 we find a