OF NEBULA AND CLUSTERS OE STARS. 
19 
No. 
953 h. 341 =D’ Arrest 48. Observed by him as “nova,” but since recognized as 
unquestionably — h. 341. 
970 VIII. 43. Auwers makes the P.D. of this cluster for 1830 =66° 25', which is 
incorrect. The determining star is 109, n, Tauri, the cluster being 1° 29' north 
of the star. This would give 66° 39' for the P.D. for 1800, agreeing with 
C.H., and 66° 36' for 1830. 
975 h. 343. A very large diffused nebulosity, distributed in zigzags. This has been 
looked for seven times by Lord Kosse and not found. Its existence is therefore 
very doubtful. 
979 h. 2709. The place graphically determined by measurement of a diagram, as 
compared with h. 2710. 
981 III. 453. This was erroneously identified with h. 335 in my Catalogue of 1833. 
By an unlucky coincidence, its place per working list, roughly brought up from 
C.H., agreed so well with the latter nebula as taken in sw. 322 (h.), that it was 
unhesitatingly assumed to be the same. It appears, however, that in C.H.’s 
reduction an error of 10 m in It. A. has been committed, the star of comparison 
being 10 Orionis, and the nebula following the star by 5 m 7 s (as ascertained by 
reference both to the register sheet (H.1160) and the original sweep (sw. 462, H.)). 
M. Auwers, misled by my erroneous identification, has assumed that the nebula 
must have preceded the star, which would (nearly) account for the difference, 
and in consequence, his It.A. of this nebula is 10 m too small. C.H.’s error 
probably arose from misapplying in like manner the sign of the A . E.A. 
998 III. 268. Auwers’s It.A. (4 h 57 m 23 s , 1830) is adopted in preference to 5 h 0 m 28 s , 
that brought up from C.H. to the same epoch. In the sweep 367 (H.) three 
stars of comparison are given, 58 Eridani, a Leporis, and 19 Leporis. The 
A. It.A. of a and 19 comes out correct, but that of 58 from each is wrong by 
3 m 5 s , so that the star must have been mistaken. C.H. has used 58 and a, and 
has rightly brought out the place of the nebula by the former (the wrong star), 
and wrongly by the right one ; and by an odd coincidence the two results agree 
well, though both wrong. 
1030 h. 349= VII. 4. Described by D’Arrest as “Ein Ausserordentlich reicher Hauf,” 
an extraordinarily rich cluster. 
1133 h. 356. Looked for four times by Lord Posse, in two of which the sky was 
fancied to have a milky appearance. 
1138) h. 2841. Double nebula. In my Cape Catalogue, sweep 538, for “first” and 
1139/ “second” read “larger” and “smaller.” The smaller is sp. The position 
260° is right. It is very remarkable that in sweeps 508, 522, 658, and 761 the 
smaller of the two was not noticed. Is it variable \ 
1167 III. 747. Auwers makes the P.D. 8' 20" greater. It is difficult to identify the 
determining star used by C.H. 
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