The Occultation of a W=13.7 Star for 1.5s by Asteroid Analucia

Sunday eve Sept 21, 2025 at 8:52:22pm

OWc page

 

This event is faint, but lasts long; 1.5s. It's high, at 35 degrees due south in Sagittarius, and should be doable from "the Rock" at Karl's. Kirk will try from Pigeon Point at a star party there.

Alt=35, Az=180 in Sagittarius; halfway between the top of the "Teaspoon" and the right "hip" of Capricorn.

 

     

 

Results:

Kirk, Karl, and I all got recordings.

Richard Nolthenius

Looked like a miss live on my laptop, from the Red Realty field. Looks too like a miss on the recording. I lost tracking during PyMovie, after the event time. Given it's clearly a miss, I did not try to re-reduce it. I again used static circular 2.4px apertures and horizontal and vertical median filtering.  I used 8x integration setting. No clouds, clear, calm. Very good conditions as I looked southwest over dark forest and ocean.

 

Kirk Bender

Looks like a miss for me for Analucia, 8x at Laurel road on Sep. 21. Max predicted duration was 1.46sec, PyOTE detectability tool reported an event as short as 0.410s would likely be detectable.

         

 

Karl von Ahnen.