Miami Valley Astronomical Society
The Universe Is Yours to Discover
Ohio weather has returned to normal (cloudy), so it’s a good time for an update! The graphs summarize my Seestar S50/30 observations of T CrB from 3/15/2024 to 9/21/2025. It looks like the recent moderate outburst has just about ended. In a few days we should reach the next half phase, and the system should begin its next brightening period.
This image combines 3 fields captured with my Seestar S30 showing the position of the asteroid (2) Pallas on the evenings of 9/18, 9/19, and 9/20/2025 at about 10:00 EDT. Each field was approximately 30m x 10s images taken using the Seestar’s framing mode set to 1.5x. The location of the asteroid is marked with a small red ‘V’ with the location shown on 9/18-9/20 from top to bottom. The track is offset from the center o the field as the actual location of the asteroid was offset from the location indicated by the Seestar. Unfortunately, inaccurate asteroid positions is fairly common and I have noted that the Seestar sky atlas and Sky Safari give inaccurate locations. In contrast, the locations given by Starry Night Pro are quite good.