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Entire DOCdb database of 18,816 objects.



Seven Sisters of the Pole (1 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost

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Abbe Nicholas Louis de la Caille's southern deep sky catalogue

Lacaille, de, N-L. (1755) Sur les etoiles nebuleuses du ciel austral. Mem.Acad.R.Sci., 194-199.

The coordinates in the tables below have been precessed to J2000.0 from Lacaille (1755). The English translation of his descriptions were adapted from Jones (1969:215).

Class I: "List of nebulae of the first class." … "Or nebulosities not accompanied by any star visible in a telescope of two feet. ... It is possible that each of these nebulae may really be a faint comet; time did not allow me to decide, by searching the sky, to see if they remained always in the same place."

#RA (2000.0)DeclinationOriginal description
I.100 33 43-72° 04' 20"It resembles the nucleus of a fairly bright small comet.
I.205 38 08-69 10 06It resembles the preceding, but it is fainter.
I.307 50 55-38 35 44Large nebulosity of 15' to 20' in diameter.
I.412 59 04-70 49 24It resembles a small comet, faint.
I.513 26 37-47 29 35Nebula in Centaurus; it appears to the naked eye like a third magnitude star seen through a thin mist, and in the telescope, like a large, ill-defined comet.
I.613 37 01-29 52 59Small, formless nebulosity.
I.713 46 09-62 56 49Small, confused spot.
I.816 25 17-40 41 55It resembles a fairly large comet without a tail.
I.916 23 36-26 33 39It resembles a small nucleus of a faint comet.
I.1016 55 29-39 30 49Faint patch, oval and elongated.
I.1118 30 02-33 32 08It resembles a small nucleus of a faint comet.
I.1218 36 27-23 57 17It resembles the preceding.
I.1319 27 15-71 34 55It resembles the preceding.
I.1419 40 10-30 59 10It resembles the faint nucleus of a large comet.

Class II: "List of nebulous stars in clusters."

#RA (2000.0)DeclinationOriginal description
II.104 02 53-44° 26' 38"A compressed heap of about 12 faint stars of 8th magnitude.
II.207 26 12-34 07 20Heap of 8 stars of 6th-7th magnitude, which forms, to the naked eye, a nebulosity in the sky.
II.307 58 59-60 49 28Group of 10 to 12 stars, much compressed.
II.408 11 09-37 12 04Two neighboring groups of confused stars are seen by the eye but in the telescope they are faint, distinct stars, very numerous and close.
II.508 38 49-53 05 03Small heap of stars.
II.608 46 41-42 15 05Heap of seven or eight stars, slightly compressed.
II.710 21 23-51 42 50Heap of four or five stars, very small and compressed.
II.810 35 51-58 12 11Small heap of four faint stars forming a lozenge.
II.910 42 57-64 23 26The star Theta Navis, of the third magnitude or less, surrounded by a large number of stars of sixth, seventh and eighth magnitude, which make it resemble the Pleiades.
II.1011 06 27-58 39 12Prodigious cluster of faint stars, very compressed, filling up in the shape of semi-circle of 20' to 25' in diameter.
II.1111 22 55-58 19 36Seven or eight faint stars compressed in a straight line.
II.1212 53 28-60 22 12Five or six faint stars between two of sixth magnitude.
II.1316 54 09-41 52 34Heap of seven or eight faint compressed stars.
II.1417 53 41-34 48 09Group of 15 or 20 stars, very close together, in the figure of a square.

Class III: "List of stars accompanied by nebulosity." … "I have not observed a single star above 6th mag which was surrounded or accompanied by nebulosity."

#RA (2000.0)DeclinationOriginal description
III.105 03 18-49° 28' 58"Faint star surrounded by a nebulosity
III.208 10 49-49 13 32Five faint stars, in the shape of a T, surrounded by nebulosity.
III.308 42 21-48 04 52Star of 6th magnitude, connected to another more southern one by a nebulous trail.
III.409 27 48-56 59 05Faint star surrounded by nebulosity.
III.510 43 51-60 06 22Two faint stars surrounded by nebulosity.
III.610 44 11-59 29 39Large group of a great number of faint stars, a little compressed, and occupying the space of a semi-circle of 15' to 20' diameter; with a slight nebulosity spreading in that space.
III.711 36 01-61 36 56Three faint stars close together, enveloped in nebulosity.
III.814 34 56-56 36 13Two faint stars in a nebulosity.
III.915 22 21-59 12 17The same [as above]
III.1016 03 27-60 33 30Three faint stars in a straight line, surrounded by nebulosity.
III.1117 40 41-53 45 40Faint star enveloped in a nebulosity.
III.1217 40 06-32 15 43Unusual cluster of faint stars, disposed in three parallel bands, forming a lozenge of 20' to 25' diameter and filled with nebulosity.
III.1318 03 52-24 24 20Three stars enclosed in a trailing nebulosity parallel to the Equator.
III.1421 31 27-56 55 25Two faint stars surrounded by nebulosity.

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