What telescope do I need to see Davida?

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

Davida — Asteroide em Leão

511 Davida

Asteroid Leão (Leo) Visível

Rendered preview of Davida 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: 3.164 AU

Orbital Period: 2055.3 days

Diameter: 311 km

Named for astronomer David Peck Todd; C-type, seventh-largest main-belt body. Outer-belt orbit keeps it dim despite great size.

Posição e Identificadores

RA 10h 28m 44.6s

Dec +27° 24' 12.0"

Constelação Leão (Leo)

Catálogo Davida

Wikipedia

Propriedades Físicas

Diâmetro 311 km

Massa 3.8e19 kg

Albedo 0.05 (5% reflected)

Rotação 5.1 hours

Tamanho angular 0.2″ (current)

Propriedades orbitais

Semieixo maior 3.1636 AU (473.3 million km)

Excentricidade 0.1896

Inclinação 15.95°

Período orbital 5.63 years

Distância 2.527 AU (21.0 light-min)

Elongação 108.0° Good

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.