Heres my sketch (and observing report!) of NGC 1502 or O'Meara's Hidden Treasure 23
NGC 1502 is easy to locate. In a small telescope you can see the cluster as a very faint and fuzzy patch of light at the end of Kemble's Cascade. The cluster is bright and well detached from the background. All stars look more or less white. I cannot detect any "coloured" stars. At the centre I see two bright white stars, and from this centre, chains of stars run into different directions. Near the centre, to the west, there is a trapezium of stars, while two the south I can see two identical triangles. Beside the two bright white lucidae, there are no other striking stars in this cluster. I count between 20 and 25 stars, which makes it a poor cluster. I can detect no nebulosity or background glow of unresolved stars. The magnitude range is large, from very bright to very faint. All in all a lovely little cluster. The optimum magnification is 94x, which is achieved with the 17mm Nagler Type 4.
Observing location : Landgraaf, Netherlands
Telescope : Orion Optics UK 300mm
Eyepiece : 17mm Nagler Type 4
Magnification / Field of view â€˜ : 94 / 52