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NGC 3640 — Galaxy in Leo

Galaxy Fair (39/100)

Elliptical

Magnitude 10.3m Galaxy Leo Visible
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1Properties

Magnitude 10.3
Angular Size 4.3′ × 3.8′
Position Angle 98°
Distance 61.41 million ly
Galaxy Type Elliptical (E3)
B, pL, R, psbM

Position & Identifiers

RA 11h 21m 06.0s
Dec +03° 13' 60.0"
Constellation Leo
Catalog NGC 3640

2How easy to spot?

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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Medium+ Medium+ Medium
150mm Newt. Easy Easy Easy
C8 203mm Easy Easy Easy
Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

Medium on Seestar S50

3Visibility

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Best season Feb – Apr (peak: Mar)

4 Eyepiece View

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125x TFOV: 0.4° Lim. mag: 13.6
N E

NGC 3640 · 4.3′×3.8′ · N up, E left

5 Best Magnification

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6 Surface Brightness

7 Morphology Decoder

8 Inclination & True Shape

9 Redshift

10 Size Comparator

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11

Light Travel Time Machine

12

Relativistic Travel

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