What telescope do I need to see Egeria?

At magnitude 9.4, Egeria is within reach of a 3-inch (80 mm) telescope from a moderate-Bortle site.

Egeria — Asteroide em Virgo

13 Egeria

Asteroid Virgo Visível

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

Mapa Estelar Sistema Solar 3D + Lista + Plano

Propriedades

Magnitude 9.4

Descrição

Type: Asteroid

Distance: 2.576 AU

Orbital Period: 1510.4 days

Diameter: 208 km

Greek water nymph; G-type (carbonaceous subgroup) — dark, damp surface thought to contain hydrated minerals. One of the brightest C-complex asteroids.

Posição e Identificadores

RA 13h 45m 26.0s

Dec -04° 55' 37.7"

Constelação Virgo

Catálogo Egeria

Wikipedia

Propriedades Físicas

Diâmetro 208 km

Massa 1.0e19 kg

Albedo 0.08 (8% reflected)

Rotação 7.0 hours

Tamanho angular 0.2″ (current)

Propriedades orbitais

Semieixo maior 2.5763 AU (385.4 million km)

Excentricidade 0.0847

Inclinação 16.53°

Período orbital 4.14 years

Distância 1.566 AU (13.0 light-min)

Elongação 165.3° 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.

Dicas de Observação

Melhores meses February , March , April

Visibilidade Telescope

Onde procurar In asteroid belt

Notas Greek water nymph; G-type (carbonaceous subgroup) — dark, damp surface thought to contain hydrated minerals. One of the brightest C-complex asteroids.