Immersion microscope objective

An immersion microscope objective comprising:

• a first lens group that includes a meniscus lens component that is the closest to an image among lens components of the first lens group, the meniscus lens component having a convex surface facing an object;
• and
• a second lens group that is closer to the image than the first lens group is;
• wherein:
• the immersion microscope objective satisfies the following conditional expressions:
• 1.4<NAob≤1.51 (1)
• 1.30 mm≤Yreso×NAob8 (2)
• Ltotal≤65 mm (10)
• where NAob indicates a numerical aperture of an object side of the immersion microscope objective, Yreso indicates a maximum object height within a region on a plane orthogonal to an optical axis that crosses a position on the optical axis at which an RMS wave aberration in a d line is minimized, the region having an RMS wave aberration in the d line that is 0.1λd or less provided therewithin, λd indicates a wavelength of the d line, and Ltotal indicates a distance on the optical axis from an object surface to a lens surface that is closest to the image among lens surfaces of the immersion microscope objective.