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LIST OF INTERESTING OBJECTS VISIBLE WITH ORDINARY TELESCOPE.

COMPILED BY LEWIS SWIFT, F.R.A.S., DIRECTOR OF WARNER OBSERVATORY, ROCHESTER, N. Y.

Triple. Beautiful object. Different colors.
One of the grandest known. Visible to naked eye.
In same field with above; small, bright.

Binary. Fine object.

22

Large. Stars of 15th magnitude.

32

42

4.5

5

35

3

བ

3

36

3.5 6.5

4

6, 7, 7.5

5, 1.3

22

58 2.5 6.5

20

58

Fine cluster. Visible to naked eye.

Stars of 10th magnitude.

First double star discovered. Fine object.

Fine pair. Difficult. Companion, blue.
Fine pair. Binary. Period about 150 years. (?)
Binary. D. only with small telescopes.
Easily resolvable. Fine object.

Faint star in center of a faint, large, round nebula.
From 7 to 9 in 2d 11h 50m. The 2d most rapid known.

Finest double star known. Easy.

h. m.

+27

42 7

crcr

4 5.5 3.5

5.5 6

6

Fine pair.

2

3.3

Binary. Interesting pair.

4.5

7

6

3.5 5.5 4.5

5 35

5 30

σ

5 33

4 54

M. 42

5 29

M. 25

18 25

19

3, 6.5, 10
3.5, 8.5, 11
4, 8, 7

2.5, 56

11, 49

Beautiful object.

12, 42

Beautiful object.

6 7

21

Greatest marvel in the heavens.

[known.

From 20 to 4th magnitude. Most remarkable variable

Cluster of stars of 11th magnitude.

Coarse cluster.

Visible to naked eye.

From 7th to 10th magnitude, irregular.

The above variable is in the middle of the nebula.

Interesting object for small telescopes.

From 6th to 12th magnitude in 255 days.
Bright. Resembles a comet. M. 82 near.

One of the most interesting pairs known. Binary.
From 6th to 11th magnitude in 145 days.
From 5.5th to 13th magnitude in 374 days.
Resolvable; one of 7 in one field.

The celebrated Dumb-bell nebula.