[glenc (Glen)]

The following Lacaille and Dunlop descriptions are from
Steve Gottlieb's NGC/IC Notes.
http://adventuresindeepspace.com/steve.ngc.htm

NGC 104 TUC GC
Nicolas-Louis de Lacaille discovered the nebulous appearance of NGC 104 = Lac I-1 = D 18 = 47 Tucanae = h2322 in 1751-1752 with a 1/2-inch telescope at 8x during his expedition to the Cape of Good Hope. It appeared "like the nucleus of a fairly bright comet." He placed it in group I, consisting of nebulae without stars.

With his 9-inch speculum reflector, James Dunlop logged "(47 Toucan, Bode) this is a beautiful large round nebula, about 8' diameter, very gradually condensed to the centre. This beautiful globe of light is easily resolved into stars of a dusky colour. The compression to the centre is very great, and the stars are considerably scattered south preceding and north following." His sketch (figure 1 in his catalogue) shows a beautifully resolved, elongated cluster.

NGC 2070 DOR Neb
Nicolas-Louis de Lacaille discovered NGC 2070 = Lac I-2 = D 142 = h2941 in 1751-1752 using a half-inch refractor at 8x during his expedition to the Cape of Good Hope. He included it in his 1755 catalogue as Class I No. 2 and remarked "like the former [NGC 104: "like the nucleus of a fairly bright comet] but faint."

James Dunlop made 8 observations and reported 30 Doradus as "a pretty large ill-defined nebula, of an irregular branched figure, with a pretty bright small star in the south side of the centre, which gives it the appearance of a nucleus. This is resolvable into very minute stars. Figure 4. is a very good representation of the nebula resolved. (N.B. The 30 Doradus is surrounded by a number of nebulae of considerable magnitudes, nine or ten in number, with the 30 Doradus in the centre.)"

IC 2395 VEL OC
Nicolas-Louis de Lacaille discovered IC 2395 = Lac. III-3 between 1751-1752 during his expedition to the Cape of Good Hope. He recorded "Star of 6th magnitude, connected to another more southern one by a nebulous trail."

NGC 2477 PUP OC
Nicolas-Louis de Lacaille discovered NGC 2477 = Lac I-3 = D 535 = h3103 in 1751-1752 using a 1/2-inch telescope at 8x during his expedition to the Cape of Good Hope. He recorded a "large nebula 15' to 20' diameter."

James Dunlop made 5 observations (first on 7 May 1826) and described the cluster as "a pretty large faint nebula, easily resolvable into small stars, or rather a cluster of very small stars, with a small faint nebula near the north preceding side, which is rather difficult to resolve into exceedingly small stars. This is probably two clusters or nebula in the same line; the small nebula is probably three times the distance of the large nebula." His position was ~12' too far NW.

IC 2488 VEL OC
Nicolas-Louis de Lacaille discovered IC 2488 = Lac III-4 = D 330 between 1751-1752 using a 1/2-inch telescope at 8x during his expedition to the Cape of Good Hope. He described it as a "Faint star surrounded by nebulosity"

James Dunlop made two observations on 8 May and 3 Jul 1826 with summary description "A faint cluster of small stars of mixed magnitude, with two or three pretty bright stars in it. This answers to 485 Argus (Bode) and is described as a small star surrounded by a nebula." John Herschel didn't record this large naked eye cluster during his observations at the Cape of Good Hope, so it didn't receive a JH, GC or NGC designation.

NGC 2516 CAR OC
Nicolas-Louis de Lacaille discovered NGC 2516 = Lac II-3 = h3111 in 1751-1752 using a 1/2-inch telescope at 8x during his expedition to the Cape of Good Hope. He noted a "Group of 10 to 12 stars, very compressed."

NGC 2516 was not included in Dunlop's main catalogue but his handwritten notes call it a "Very fine cluster about 35' diameter, many of the stars of the 6th and 7th magnitude, mixed magnitudes. Figure irregular - branched."

NGC 2546 PUP OC
Nicolas-Louis de Lacaille discovered NGC 2546 = Lac II-4 = D 563 = h3116 in 1751-1752 using a 1/2-inch refractor at 8x during his expedition to the Cape of Good Hope. He recorded II-4 as follows: "One sees with the naked eye two neighboring confused groups of stars; but with the telescope they are faint, distinct stars, very numerous & very close together."

James Dunlop observed the cluster on 8 May and 28 May 1826 and recorded, "a large cluster of stars of mixt magnitude, rather extended figure, not rich in very small stars." His position was 17' too far north (typical error). John Herschel made 3 observations from the Cape of Good Hope, reporting on 1 Feb 1835 "a cluster 8th class of about 20 bright stars in an oblong, 8' long, 3' broad."

NGC 2547 VEL OC
Nicolas-Louis de Lacaille discovered NGC 2547 = Lac III-2 = D 410 = h3117 in 1751-1752 using a 1/2-inch telescope at 8x during his expedition to the Cape of Good Hope. He described "five faint stars like the letter T in nebulosity."

Dunlop observed the cluster twice (first 28 May 1826) with summary description, "A curiously arranged group of pretty bright small stars of mixt magnitudes. This answers to the place of 310 Argus (Bode) and is described by Lacaille as nebula with five small stars forming the letter T in it. There is no nebulosity in this place. The diameter of the cluster may be about 12'. Figure 16 [in his publication] is a very good representation of the group."

IC 2602 CAR OC
Nicolas-Louis de Lacaille discovered IC 2602 = Lac II-9 in 1751-1752 with a 1/2-inch telescope at 8x during his expedition to the Cape of Good Hope. He recorded "The star Theta Navis, of the third magnitude or less, surrounded by a large number of stars of 6th, 7th & 8th magnitude, which resemble the Pleiades." The nickname "Southern Pleiades derives from this description. John Herschel did not record this large naked eye cluster during his observations at the Cape of Good Hope, so it did not receive a GC or NGC designation.

NGC 3228 VEL OC
Nicolas-Louis de Lacaille discovered NGC 3228 = Lac II-7 = D 386 = h3245 in 1751-1752 with a 1/2-inch telescope at 8x. He called it a "heap of four or five stars, very small and compressed."

James Dunlop observed the cluster twice outside Sydney, Australia (first on 9 May 1826) and reported "11 Roboris Caroli. A group of 8 or 10 pretty bright small stars, with very small stars, about 6' diameter." On 6 Apr 1834 (sweep 438), John Herschel called this "a group of 9 large, and a few scattered small stars."

NGC 3293 CAR OC
Nicolas-Louis de Lacaille discovered NGC 3293 = Lac II-8 = D 321 = h3276 in early 1752, using a 1/2-inch telescope at 8x during his expedition to the Cape of Good Hope. He described a "Small heap of 4 small stars forming a lozenge."

James Dunlop observed the cluster 4 times (first on 29 Apr 1826) and described "a very small cluster of very small bright stars; round figure, about 4' diameter; rich in extremely small stars resembling faint nebula". His published position was poor -- 17' WSW of the cluster.