| Vaisala, Y.|
78.04 yr (28504 days)
| 8 March 1938|
8 March 1938
| 1.9508111 AU (291.83719 Gm)|
1450 Raimonda, 1338 Duponta, 317 Roxane, Asteroid belt, 121 Hermione
1453 Fennia Wikipedia
1453 Fennia (provisional designation: 1938 ED1) is an inner main belt asteroid. It was discovered on March 8, 1938, by the Finnish astronomer Yrjö Väisälä at Iso-Heikkilä Observatory in Turku, Finland. The asteroid's name is the Latin word for Finland.
In 2007, a team of astronomers made photometric observations of Fennia, and discovered that it is orbited by a moon. The moon is at least a quarter the size of Fennia itself, and has an orbital period of approximately 23 hours. The team also found that Fennia has a rotation period of 4.4 hours and is likely spheroidal in shape.