Top 25 Most Popular Catalogs at the ADC

From January 01 2001 Through June 04, 2001

Note: These counts are based on files downloaded from the ADC ftp site only.
They also do not include hits to currently superseded catalogs or journal tables nor do they include
hits made to catalogs/journal tables that are listed as included in ADC CD-ROMs 1 - 4.

Rank	Catalog	Short Title
1	6016	Line Spectra of the Elements (Reader, Corliss 1980-1981)
2	5050	Yale Bright Star Catalogue, 5th Revised Ed. (Hoffleit, Warren 1991)
3	7118	NGC 2000.0 (Sky Publishing 1988, ed. Sinnott)
4	1239	The Hipparcos and Tycho Catalogues (ESA 1997)
5	1131A	SAO Star Catalog J2000 (SAO Staff 1966; USNO, ADC 1990)
6	5102	SKY2000 - Master Star Catalog, Version 2 (Sande+ 1998)
7	5070A	Nearby Stars 3, Preliminary (Gliese, Jahreiss 1991)
8	1259	The Tycho-2 Catalogue (Hog+ 2000)
9	1254	The HST Guide Star Catalogue, Version 1.2 (Lasker+ 1996)
10	1245	Orbital Elements of Minor Planets 1998 (Batrakov+ 1997)
11	1246	The ACT Reference Catalog (Urban+ 1997)
12	1252	The USNO-A2.0 Catalogue (Monet+ 1998)
13	1171	Astrographic Catalog Reference Stars (Corbin,Urban 1991)
14	7155	Third Reference Cat of Bright Galaxies (RC3; de Vaucouleurs+ 1991)
15	7004A	Abell and Zwicky Clusters of Galaxies (Abell+ 1974)
16	5061	Ptolemy's Star Catalogue (Almagest; Manitus 1913; Jaschek 1987)
17	1094A	JPL Ephemeris DE200/LE200, 1960-2025, J2000 (Standish+ 1981,1990)
18	1255	The HST Guide Star Catalog, Version 1.3 (Lasker+ 1996-99)
19	7001B	Rev New Gen Cat of Nonstellar Objects (RNGC; Sulentic, Tifft 1973)
20	5084	Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker+, 1992)
21	7092A	Open Cluster Data, 5th Edition (Lynga 1987)
22	1005	Proper Motions of 20843 Cape Zone Stars 1900 (Spencer Jones+ 1936)
23	1146	Positions and Proper Motions (Roeser, Bastian 1988)
24	7103	Galactic Globular Clusters (Monella 1985)
25	2214A	Combined General Catalogue of Variable Stars (Kholopov+ 1998)