What telescope do I need to see Interamnia?

At magnitude 9.5, Interamnia is within reach of a 3-inch (80 mm) telescope from a moderate-Bortle site.

Interamnia — Asteroide en Libra

704 Interamnia

Asteroid Libra Visible

Rendered preview of Interamnia from the Nightbase orrery, lit from the current Sun direction with the terminator visible.

Mapa Estelar Sistema Solar 3D + Lista + Plan

Propiedades

Magnitud 9.5

Descripción

Type: Asteroid

Distance: 3.056 AU

Orbital Period: 1951.5 days

Diameter: 332 km

Latin name for Teramo, Italy; F-type; sixth-largest main-belt body, comparable in mass to Pallas.

Posición e Identificadores

RA 14h 03m 20.2s

Dec -34° 56' 33.7"

Constelación Libra

Catálogo Interamnia

Wikipedia

Propiedades Físicas

Diámetro 332 km

Masa 3.5e19 kg

Albedo 0.08 (8% reflected)

Rotación 8.7 hours

Tamaño angular 0.2″ (current)

Propiedades orbitales

Semieje mayor 3.0562 AU (457.2 million km)

Excentricidad 0.1552

Inclinación 17.32°

Período orbital 5.34 years

Distancia 2.511 AU (20.9 light-min)

Elongación 159.0° Near opposition

Brightness Forecast (next 12 months)

Apparent magnitude as Earth–asteroid distance changes through the year. The peak marks the brightest moment in the window — usually around opposition, when the asteroid is closest and fully illuminated.

Computed from JPL orbital elements via m = H + 5·log₁₀(r·Δ). Phase-function correction is omitted, so curves trace distance variation only — accurate within a few tenths for main-belt asteroids; coarse for fast-moving NEOs near Earth.