Loading simulator…

Telescope Simulator

Celestron RASA 8 Rowe-Ackermann Schmidt AstrographWhirlpool

Telescope

▾

Looking through

Apertura Plössl 25mm

16× • 3.3° • 12.7mm exit pupil

12.69mm exit pupil exceeds the eye's ~6mm limit — light is wasted at 16×

Good fits for Whirlpool

Wide field

Widest views — large nebulae & open clusters

General

Everyday deep-sky & the Moon

Planetary

Planets, double stars & fine detail

Picked for Whirlpool through the Celestron RASA 8 Rowe-Ackermann Schmidt Astrograph. All 102 eyepieces are in “Change eyepiece or camera”.

Whirlpool through the eyepiece

← 3.3° → true field

52° apparent field

M51

Apertura Plössl 25mm

Selected by Skynocular

Poor fit· Apertura Plössl 25mm on the Celestron RASA 8 Rowe-Ackermann Schmidt Astrograph

Why this eyepiece?

✓Frames both galaxies together in a single view
✓Sweeping, immersive low-power view
✓Wide, bright exit pupil — best under dark skies

Tradeoffs

–Less reach to push fine detail in the spiral arms

Large exit pupil may waste light

A face-on spiral — its companion NGC 5195 is visible as a second smudge even in modest apertures.