1966 Topps #539 Astros Rookie Stars - Bill Heath / Carroll Sembera
On this card: Bill Heath, Carroll Sembera
About this card
The 46 Rookie Stars cards group a club's prospects under one number - except #553, which mixes Braves and Angels, and #591 NL Rookie Stars, which mixes Dodgers and Phillies. The class is headlined by #254 (Ferguson Jenkins, with Bill Sorrell) and #288 (Don Sutton, with Bill Singer).
The story on this card
1966 Topps #539, a high number in the set's seventh series, pairs Heath with fellow Astros prospect Carroll Sembera and serves as his rookie card. That season was Heath's best in the majors: as backup catcher behind John Bateman for Houston, he hit .301 over 55 games, his most productive big-league showing. Bill Heath was a left-handed hitting catcher who spent parts of four seasons in the majors with the White Sox, Astros, Tigers and Cubs, batting .301 for Houston in 1966 and catching Ken Holtzman's 1969 no-hitter in his final game.
Card #539 is a Rookie Stars subset issue from Topps' high-number series, pairing Sembera with fellow Astros hopeful Bill Heath. It came in Sembera's second big-league season, a full year in the Houston bullpen: 24 relief appearances, a 1-2 record and his only career save so far, over 33 innings. He had debuted with the Astros the previous September and would go on to log his heaviest workload the following year. Right-handed Houston and Montreal reliever who threw the first save in Expos history on 1969 opening day, then scouted for eleven years with the Mariners.
Sources: Wikipedia (Bill Heath) · Wikipedia (Carroll Sembera) · SABR BioProject
Graded population (PSA & SGC)
| Grader | Total | 10 | 9 | 8 | 7 | 6 | 5 | 1-4 | Auth |
|---|---|---|---|---|---|---|---|---|---|
| PSA | 247 | 0 | 11 | 100 | 66 | 40 | 12 | 15 | 3 |
| SGC | 15 | 0 | 0 | 3 | 4 | 4 | 2 | 1 | 1 |
Graded population — a scarcity guide, not a price. Data as of 2026-09-04. Half grades fold down for both graders (8.5→8); PSA qualified slabs (OC, ST, PD, MC and the like) are not counted. Where SGC registers no separate row for a variation state, its slabs of that card are listed under the base state.
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Related cards
More Houston Astros cards:
- #21 Don Nottebart
- #45 Jim Gentile
- #64 Bob Bruce
- #86 John Bateman
- #106 Rusty Staub
- #122 Joe Gaines
- #147 Lum Harris
- #162 Lee Maye
- #174 Ron Taylor
- #195 Joe Morgan
- #228 Larry Dierker
- #244 Astros 1966 Rookie Stars
- #258 Dave Giusti
- #273 Astro Aces
Frequently asked questions
What is the 1966 Topps #539 card?
It is card #539 of the 598-card 1966 Topps Baseball set, picturing Bill Heath and Carroll Sembera. The 46 Rookie Stars cards group a club's prospects under one number - except #553, which mixes Braves and Angels, and #591 NL Rookie Stars, which mixes Dodgers and Phillies. The class is headlined by #254 (Ferguson Jenkins, with Bill Sorrell) and #288 (Don Sutton, with Bill Singer).
Is 1966 Topps #539 a rookie card?
Yes - #539 is a rookie card for every player pictured on it: Bill Heath and Carroll Sembera.
Why is #539 harder to find?
It is a high number card from the seventh and last print series, #523-598 - the scarce end of the set. Forty-three of its 76 cards are short prints, so scarcity is stated for the series as a whole.
How many cards are in the 1966 Topps Baseball set?
598 cards, tracked as 613 collectible states. Numbers run from 1 to 598 with no gaps and no number used twice, and 14 cards carry catalogued print variations - five checklists, the trade and sold statement backs, the three-state #43 Don Landrum, three team-card dot pairs and the #161 Jerry Lumpe white streak - that the master set counts separately.
Sources: Trading Card Database, PSA CardFacts, Cardboard Connection, Baseball Almanac, Baseball-Reference, the SABR BioProject and the National Baseball Hall of Fame, PSA & SGC population reports. Card data compiled and maintained by T206Cards.com. Page last updated 2026-10-11.