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 — Astéroïde dans Lion

511 Davida

Asteroid Lion (Leo) Visible

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

Carte du Ciel Système Solaire 3D + Liste + Plan

Propriétés

Magnitude 9.4

Description

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.

Position et Identifiants

RA 10h 28m 44.6s

Dec +27° 24' 12.0"

Constellation Lion (Leo)

Catalogue Davida

Wikipedia

Propriétés Physiques

Diamètre 311 km

Masse 3.8e19 kg

Albédo 0.05 (5% reflected)

Rotation 5.1 hours

Taille angulaire 0.2″ (current)

Propriétés orbitales

Demi-grand axe 3.1636 AU (473.3 million km)

Excentricité 0.1896

Inclinaison 15.95°

Période orbitale 5.63 years

Distance 2.527 AU (21.0 light-min)

Élongation 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.