What telescope do I need to see Euterpe?

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

Euterpe — Asteroid in Krebs

27 Euterpe

Helligkeit 9.5^m Asteroid Krebs (Cnc) Sichtbar

Rendered preview of Euterpe 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: 2.347 AU

Orbital Period: 1313.5 days

Diameter: 96 km

Greek muse of music and lyric poetry; S-type; one of the brightest minor planets at opposition (typical mag 9.5).

Position & Bezeichnungen

RA 08h 52m 58.9s

Dec +17° 42' 01.0"

Sternbild Krebs (Cnc)

Katalog Euterpe

Wikipedia

Physikalische Eigenschaften

Durchmesser 96 km

Masse 1.2e18 kg

Albedo 0.21 (22% reflected)

Rotation 10.4 hours

Winkeldurchmesser 0.1″ (current)

Bahneigenschaften

Große Halbachse 2.3472 AU (351.1 million km)

Exzentrizität 0.1716

Bahnneigung 1.58°

Umlaufzeit 3.60 years

Entfernung 1.801 AU (15.0 light-min)

Elongation 83.0° 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.