FIRST QUADRANT.

Autolycus. Encircled by a delicate nimbus, throwing out four or five

prominent rays extending towards Archimedes. Seen best under evening

illumination.

Aristillus. The centre of a noteworthy system of delicate rays extending

W. towards the Caucasus; and on the S. disappearing among the rays of

Autolycus. They are traceable on the Mare Nubium near Kirch.

Theaetetus. A very brilliant group of little hills E. of this formation.

Eudoxus A. A light-surrounded crater W. of Eudoxus, with distinct long

streaks, one of which extends to the S. wall of Aristoteles.

Aristoteles A. A light-surrounded crater in the Mare Frigoris, N.E. of

Aristoteles.

Aratus. A very conspicuously brilliant crater in the Apennines, with a

smaller light-surrounded crater W. of it.

Sulpicius Gallus. A light spot near.

Manilius. Surrounded by a light halo and streaks.

Taquet. Has a prominent nimbus, and indications of very delicate streaks.

Plinius A. Is surrounded by a well-marked halo.

Posidonius gamma. Among the hills E. of this formation a light spot

resembling Linne, according to Schmidt. He first saw it in 1867, when it

had a delicate black spot in the centre. Dr. Vogel observed and drew it

in 1871 with the great refractor at Bothkamp. These observations were

confirmed by Schmidt in 1875 with the 14-feet refractor at Berlin.

Littrow. A very bright light-spot with streaks, on the site of a little

crater and well-known cleft E. of this ring-plain.

Romer. A light-surrounded mountain on the E.

Macrobius. Two light-surrounded craters on the E. of this formation, the

more northerly being the brighter.

Cleomedes A. (On the floor.) Surrounded by a nimbus and rays. Large

crater, A, on the E. has also a nimbus and rays.

Agrippa. Exhibits faint rays.

Godin. Exhibits faint rays.

Proclus. A well-known ray-centre, some of the rays prominent on part of

the Mare Crisium.

Taruntius. Has a very faint nimbus, with rays, on a dark surface.

Dionysius. A brilliant crater with a prominent, bright, excentrically

placed nimbus on a dark surface, on which distinct rays are displayed.

Hypatia B. A very small bright crater on a dark surface: surrounded by a

faint nimbus.

Apollonius. Among the hills S. of this, there is a small bright streak

system.

Eimmart. There is a large white spot N.W. of this.

Geminus is associated with a system of very delicate rays.

Menelaus. A brilliant object. It is traversed by a long ray from Tycho.

The moon · 第 24 / 29 题