No future Astros, but a few former Astros with birthdays today ~
RHP Don Nottebart (died October 4, 2007 at 71)
Nottebart came to Houston in a December 1962 trade with the Milwaukee Braves and pitched in 88 games (76 starts) for the Colt 45's and Astros from 1963 to 1965 with an ERA of 3.86 and a WHIP of 1.244. Nottebart pitched Houston's first no-hitter on May 17, 1963 against the Phillies.
2B Joey Amalfitano (79)
Amalfitano was drafted by Houston from the Giants in the 1961 expansion draft and played in 117 games for the Colt .45's in 1962, hitting .237/.317/.303.
1B/OF Benny Distefano (51)
A second round pick by the Pirates in 1982, Distefano signed with Houston as a free agent in January 1992. In 52 games for the Astros that season, he hit .233/.303/.300.
RHP Brandon Duckworth (37)
Duckworth came to Houston as a part of the Billy Wagner trade with the Phillies in November 2003. In 26 games (eight starts) for the Astros in 2004 and 2005, he was 1-3 with an 8.08 ERA and a 1.778 WHIP.