What telescope do I need to see Parthenope?

At magnitude 9.5, Parthenope is within reach of a 3-inch (80 mm) telescope from a moderate-Bortle site.

Parthenope — Asteroid in Löwe

11 Parthenope

Asteroid Löwe (Leo) Sichtbar

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

Sternkarte 3D-Sonnensystem + Liste + Plan

Eigenschaften

Helligkeit 9.5

Beschreibung

Type: Asteroid

Distance: 2.453 AU

Orbital Period: 1403.4 days

Diameter: 143 km

Greek siren who lured sailors to their deaths in Homer's Odyssey; S-type; one of the brightest minor planets at opposition (typical mag 9.5).

Position & Bezeichnungen

RA 10h 13m 28.3s

Dec +15° 22' 32.1"

Sternbild Löwe (Leo)

Katalog Parthenope

Wikipedia

Physikalische Eigenschaften

Durchmesser 143 km

Masse 3.8e18 kg

Albedo 0.19 (19% reflected)

Rotation 13.7 hours

Winkeldurchmesser 0.1″ (current)

Bahneigenschaften

Große Halbachse 2.4532 AU (367.0 million km)

Exzentrizität 0.1005

Bahnneigung 4.64°

Umlaufzeit 3.84 years

Entfernung 2.147 AU (17.9 light-min)

Elongation 109.8° 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.

Beobachtungstipps

Beste Monate June , July , August

Sichtbarkeit Telescope

Wo zu finden In asteroid belt

Hinweise Greek siren who lured sailors to their deaths in Homer's Odyssey; S-type; one of the brightest minor planets at opposition (typical mag 9.5).