Eyepiece and telescope pairing
Best eyepiece for the Celestron StarSense Explorer DX 102AZ
Which eyepiece gets the most out of the Celestron StarSense Explorer DX 102AZ, chosen by exit pupil rather than by guesswork.
- Aperture / focal length
- 102 mm / 660 mm (f/6.5)
- Deep-sky pick
- Tele Vue 13mm Nagler Type 6: 51x, 2.01 mm exit pupil
- Low-power pick
- Celestron Omni 32mm Plossl: 21x, 4.95 mm exit pupil
- Focuser barrel
- 1.25 in (both eyepieces fit)
For deep-sky detail, the Tele Vue 13mm Nagler Type 6 is the pick of the eyepieces here: at 51x it lands near the 2 mm exit pupil where faint-object contrast peaks in the Celestron StarSense Explorer DX 102AZ. For wide low-power sweeping, drop to the Celestron Omni 32mm Plossl at 21x.
An exit pupil near 2 mm is the classic sweet spot for teasing detail out of faint deep-sky objects, because it concentrates the light while keeping the image bright enough. In the Celestron StarSense Explorer DX 102AZ the Tele Vue 13mm Nagler Type 6 lands there, at 51x with a 2.01 mm exit pupil and a 1.62 degree field.
For a low-power finder-and-framing view you want a wider exit pupil, around 5 mm. Here the Celestron Omni 32mm Plossl gives 21x, a 4.95 mm exit pupil and a 2.33 degree field, the widest true field of the eyepieces that fit this focuser.