Discovered by Joel Hastings Metcalf Alternative names 1908 EJ Aphelion 2.6327 AU (393.85 Gm) Discovered 30 September 1908 Discoverer Joel Hastings Metcalf Asteroid group Asteroid belt | Discovery date 30 September 1908 Observation arc 99.16 yr (36218 d) Perihelion 2.1142 AU (316.28 Gm) Orbits Sun Discovery site Taunton observatory Spectral type M-type asteroid | |
Similar 528 Rezia, 540 Rosamunde, 679 Pax, 509 Iolanda, 441 Bathilde | ||
757 Portlandia is a main-belt asteroid 32 km in diameter. In November 2015 amateur astronomers where photographing it in images of comet 67P/Churyumov–Gerasimenko. Portlandia will come to opposition in March 2016 at apparent magnitude 13.2.
References
757 Portlandia Wikipedia(Text) CC BY-SA