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Lacaille II.11
Lacaille II.11, Dunlop 324
RA: 11h 22m 55s
Dec: −58° 19′ 36″
Con: Centaurus
Ch: MSA:991, U2:427, SA:25
Ref: [1755MmARS..??..194L ], Cozens (2008)
Type: asterism
Mag: B=?, V=?
Size: ?
PA: ?
Historical observaitons
Lacaille (1755)
Lacaille's description reads: "Seven or eight small stars compressed in a right line". The position he noted is 11h 22m 55s, –58° 19' 36" (J2000.0).
In the diagram below, the square is centred on Lacaille's position, and the circle is 40' in diameter (north up, east left). Within it lie 6 stars (all brighter than 9th mag) in a 33' long row (PA60°). The brightest star is HD 98897 = SAO 239003 (V=6.6, 11:22:15.6, -58:23:10). Also within the circle lie ESO 129-19 (west) and Cl VDBH 118 (south).
James Dunlop (1826)
James Dunlop's #324 is recorded as "Seven or eight small stars in a line oblique to the equator", observed once. His gives the position as RA 11h 17m 0s, SPD 32° 43' (1827), which precesses to 11h 24m 50s, -58° 14' (J2000.0).
Published comments
Cozens (2008)
Glen Cozens records Lac II.11 as an asterism, giving its angular size as 55'.
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Favourite lists
Lacaille's catalogue
The Messier objects
Dunlop's catalogue
The Bennett objects
The Caldwell list
Named DSOs
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