Here's the top 50 as of the end of 2005: HOUSTON ASTROS SEASON HOMERUNS YEAR HR 1 Jeff Bagwell 2000 47 2 Richard Hidalgo 2000 44 3 Jeff Bagwell 1997 43 T4 Jeff Bagwell 1999 42 T4 Lance Berkman 2002 42 T6 Jeff Bagwell 2003 39 T6 Jeff Bagwell 2001 39 T6 Jeff Bagwell 1994 39 9 Moises Alou 1998 38 10 Jimmy Wynn 1967 37 11 Morgan Ensberg 2005 36 T12 Lance Berkman 2001 34 T12 Glenn Davis 1989 34 T12 Jeff Bagwell 1998 34 15 Jimmy Wynn 1969 33 T16 Glenn Davis 1986 31 T16 Jeff Bagwell 2002 31 T16 Jeff Bagwell 1996 31 T19 Lance Berkman 2004 30 T19 Glenn Davis 1988 30 T19 Moises Alou 2000 30 22 Lee May 1972 29 T23 Lee May 1973 28 T23 Richard Hidalgo 2003 28 T25 Jeff Kent 2004 27 T25 Glenn Davis 1987 27 T25 Jeff Bagwell 2004 27 T25 Jimmy Wynn 1970 27 T25 Moises Alou 2001 27 T30 Craig Biggio 2005 26 T30 Jason Lane 2005 26 T30 Cesar Cedeno 1974 26 T30 Jimmy Wynn 1968 26 T34 Doug Rader 1970 25 T34 Cesar Cedeno 1973 25 T34 Lance Berkman 2003 25 T34 Morgan Ensberg 2003 25 T34 Carl Everett 1999 25 T39 Roman Mejias 1962 24 T39 Jimmy Wynn 1972 24 T39 Craig Biggio 2004 24 T39 Lee May 1974 24 T39 Lance Berkman 2005 24 T44 Vinny Castilla 2001 23 T44 Franklin Stubbs 1990 23 T44 Carlos Beltran 2004 23 T47 Glenn Davis 1990 22 T47 Derek Bell 1998 22 T47 Jeff Kent 2003 22 T47 Cesar Cedeno 1972 22 T47 Jimmy Wynn 1965 22 T47 Bob Watson 1977 22 T47 Doug Rader 1972 22 T47 Craig Biggio 1995 22 T47 Craig Biggio 1997 22