11433 Gemmafrisius

**3474 T-3**
Discovery and designation
Discovered by	Cornelis Johannes van Houten
Discovery site	Palomar
Discovery date	October 16, 1977
Designations
MPC designation	(11433) 3474 T-3
Named after	Gemma Frisius
Alternate name(s)	1953 FB1
Orbital characteristics
Ap	2.8063718 AU
Peri	2.0334632 AU
Semi-major axis	2.4199175 AU
Eccentricity	0.1596973
Orbital period	3.76 yrs.
Mean anomaly	223.25065 deg.
Inclination	3.21197 deg.
Longitude of ascending node	59.70088 deg.
Physical characteristics
Absolute magnitude (H)	14.8 mag

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11433 Gemmafrisius (provisional designation: 3474 T-3) is a Main Belt minor planet. It was discovered by Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld, and Tom Gehrels at the Palomar Observatory in San Diego County, California, on October 16, 1977. It is named after Gemma Frisius, a 16th-century Belgian mathematician and cartographer.

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