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 — Asteroid in Virgo

13 Egeria

Asteroid Virgo Sichtbar

Rendered preview of Egeria 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: 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.

Position & Bezeichnungen

RA 13h 45m 26.0s

Dec -04° 55' 37.6"

Sternbild Virgo

Katalog Egeria

Wikipedia

Physikalische Eigenschaften

Durchmesser 208 km

Masse 1.0e19 kg

Albedo 0.08 (8% reflected)

Rotation 7.0 hours

Winkeldurchmesser 0.2″ (current)

Bahneigenschaften

Große Halbachse 2.5763 AU (385.4 million km)

Exzentrizität 0.0847

Bahnneigung 16.53°

Umlaufzeit 4.14 years

Entfernung 1.566 AU (13.0 light-min)

Elongation 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.

Beobachtungstipps

Beste Monate February , March , April

Sichtbarkeit Telescope

Wo zu finden In asteroid belt

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