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 — Asteroid in Löwe

511 Davida

Helligkeit 9.4^m Asteroid Löwe (Leo) Sichtbar

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

Sternkarte 3D-Sonnensystem + Liste + Plan

Eigenschaften

Helligkeit 9.4

Beschreibung

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 & Bezeichnungen

RA 10h 59m 57.0s

Dec +21° 58' 04.5"

Sternbild Löwe (Leo)

Katalog Davida

Wikipedia

Physikalische Eigenschaften

Durchmesser 311 km

Masse 3.8e19 kg

Albedo 0.05 (5% reflected)

Rotation 5.1 hours

Winkeldurchmesser 0.1″ (current)

Bahneigenschaften

Große Halbachse 3.1636 AU (473.3 million km)

Exzentrizität 0.1896

Bahnneigung 15.95°

Umlaufzeit 5.63 years

Entfernung 3.210 AU (26.7 light-min)

Elongation 73.7° Moderate

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.