candidate in the Andromeda constellation TVLM — Tinney's Very Low Mass Catalogue TYC — Tycho Catalogue TYC2 — Tycho-2 Catalogue Tr / Trumpler — Robert Julius Trumpler's open cluster list, published in Preliminary results on the distances, dimensions and space distribution of open star clusters Tu — Tucker (double stars) U UBV — Photoelectric Catalogue, magnitude and color of stars in UBV (Blanco et al. 1968) UBV M — UBV Photoelectric Photometry Catalogue (Mermilliod 1987) UCAC — USNO CCD Astrograph Catalog (UCAC1, UCAC2, UCAC3, UCAC4 & UCAC5) UGC — Uppsala General Catalogue (galaxies) UGCA - Uppsala Selected non-UGC Galaxies UKS - United Kingdom Schmidt (globular star clusters) ULAS - UKIDDS Large Area Survey (quasars) Up - Upgren (open star clusters) (only one object in this catalogue? Upgren 1) (probably Arthur R. Upgren, 1933-2017) Up - Upton (double stars) USNO — US Naval Observatory USNO-A1.0— US Naval Observatory, A1.0 catalogue USNO-A2.0 — US Naval Observatory, A2.0 catalogue USNO-B1.0 — US Naval Observatory, B1.0 catalogue uvby98 — uvbyβ photoelectric photometric catalogue, by B. Hauck, M. Mermilliod, Astron. Astrophys., Suppl. Ser., 129, 431-433 (1998) V vB — Van Biesbroeck's star catalog, variant, "VB" VBRC (?) VCC — Virgo Cluster Catalog Vd - Vandervort (planetary nebulae) VdB — Van den Bergh (catalogue of reflection nebulae) VdB-H - Van den Bergh-Herbst (open star clusters) VdB-Ha - Van den Bergh-Hagen (open star clusters) VFTS - VLT Flames Tarantula Survey Vou - J.G.E.G. Voute (double stars) VPHAS+ The VST Photometric Hα Survey of the Southern Galactic Plane and Bulge VV — Vorontsov-Vel'yaminov Interacting Galaxies (Boris Aleksandrovich Vorontsov-Vel'yaminov)¨ VVV Survey — Vista Variables in the Via Lactea (Latin for Milky Way) VVV-CL - (open star clusters, I.R.) Vy - Vyssotsky (planetary nebulae) (Alexander Vyssotsky) W W - Radiosource (Westerhout) W20 — Washington 20 Catalog Wa / Ward - I.W.Ward (double stars) Wa - Waterloo (open star clusters) WASP — Wide Angle Search for Planets WASP0-TR — Wide Angle Search for Planets, Transit WDS — Washington Double Star Catalog We - Weinberger (planetary nebulae) (Ronald Weinberger) We - Westerlund (open star clusters) (Bengt Westerlund, 1921-2008) Webb - T.W.Webb (double stars) WeDe - Weinberger-Dengle (planetary nebulae) Weisse - M.Weisse (double stars) WeSa - Weinberger-Sabbadin (planetary nebulae) Wg - R.W.Wrigley (double stars) Whiting - Alan B. Whiting (globular star clusters) (for example: Whiting 1 at 2h 02m / -3° 15' in Cetus) WhMe - Whitelock-Menzies Willman - Beth Willman (for example: