examples from the 'Lambda' catalogue: λ 32 (RA 3:47.9), λ 88 (RA 7:48.9), λ 91 (RA 7:55.7), λ 96 (RA 8:12.5), λ 108 (RA 9:0.3), λ 115 (RA 9:37.1), λ 140 (RA 11:56.7), λ 176 (RA 13:20.5), λ 228 (RA 15:23.2), λ 249 (RA 15:47.6), λ 316 (RA 17:0.4), λ ? (RA 17:6.4), λ 320 (RA 17:12.2), λ 342 (RA 17:53.3). All examples are located in the southern celestial hemisphere. The 'Lambda' catalogue is related to T.J.J.See's catalogue of double stars. LAMOST - Large Sky Area Multi-Object Fibre Spectroscopic Telescope (Guo Shoujing Telescope) Latham - (for example: Latham 1 at 13:10:50 / +30:28:36) Latysev - (open star clusters) Lau - H.E.Lau (double stars) LBN — Lynds' Catalogue of Bright Nebulae Lbz - P.Labitzke (double stars) LDN — Lynds' Catalogue of Dark Nebulae LDS — Luyten Double Star catalogue LEDA — Lyon-Meudon Extragalactic Database Lederman - (telescopic asterisms) Le Gentil - (for example: Le Gentil 3 in Cygnus, at 21:08 / +51°40') (dark nebula) Leon - Frederick C. Leonard (double stars) Lewis - Thomas Lewis (double stars) LFT — Luyten Five-Tenths catalogue LG11 — Lépine & Gaidos 2011, bright M dwarfs LGG - Lyons Groups of Galaxies LGS - (for example: dwarf galaxy LGS 3 in Pisces, also known as the Pisces Dwarf) LHA - Lamont-Hussey Alpha LHS — Luyten Half-Second catalogue Liller (globular star clusters) (for example: Liller 1 in Scorpius) Lo - Lars Olof Loden (open star clusters) Lo - Longmore Loiano - (for example: Loiano 1 at 19:58:21 / +32:32:42) Lorenzin - (telescopic asterisms) LoTr - Longmore-Tritton (planetary nebulae) LP — Luyten-Palomar Survey LPM — Luyten Proper-Motion Catalogue LPO - La Plata Observatory, Argentina LS — either of two "Luminous Stars" catalogues; see LSN and LSS, below LS - Lensed Star (LS 1 = 'Icarus' in Leo) (see MACS J1149 Lensed Star 1) LSA - Lundstrom-Stenholm-Acker (planetary nebulae) LSN — Luminous Stars in the Northern Milky Way LSPM — LSPM catalog - Lépine-Shara Proper Motion catalog LSR — Lepine-Shara-Rich catalogue LSS — Luminous Stars in the Southern Milky Way LTT — Luyten Two-Tenths catalogue Luginbuhl-Skiff - (for example: Luginbuhl-Skiff 1 at 6:14:48 / +12:52:24) Luhman - (for example: Luhman 16 in Vela) Luy - W.J.Luyten (double stars) Lv - Francis Preserved Leavenworth (double stars) Ly - Lynga (open star clusters) M M — Catalog of Nebulae and Star Clusters (Messier object) M - Minkowski (planetary nebulae) Ma -