M67 Mag Chart , ToBuy
Cabrillo College Observatory ClearSkyClock
5-day forecast
As of Apr 5, 2025. Check out past events here.
NEA Occultations alerts at RASC , How to Report a CBET , and 50 most recent CBETs , RECONN Trojan Events Upcoming
Asteroid Occ Predictions: Steve Preston's , Derek Breit's , Calif Path Maps , SF Extra Event , IOTA Observations , Report Template , Reporting ACROSS events
LuckyStar Portal , Journal of Occultation Astronomy Issues , GAIA Astrometric Astroid Binaries List , UCAC4 details
Software: Using AVIsynth , TANGRA , Making Aladin Finder Charts , Visual Limiting Mag , Registax and Occ Video ,
PyOTE 8min tutorial , PyOTE HowTo , PyMovie Tutorials , FFmpeg edit/convert video , PyMovie: Vimeo HowTo , My PyMovie/PyOTE Instruc
Making C2A Charts , YouTube IOTA Videos , Journal of Double Star Observations
Brad Timerson's LiMovie vid , My "Using LiMovie" , Reported Asteroid Occulations , OW Cloud predictions
ACROSS Predictions with maps , RECON Predictions through 2029
Equipment: Watec 910HX , specs , my Tests , Docs , Response curve , Video astrometry , PC165DNR , Video recording Occultations ,
My "Using 8SE/Video/VTI 2nd Unit" (pdf) , HristoPavlov.net , f/3.3 vs 0.5x Orientation 8SE
MISC: Star cross ref , South Bay Grazes , SF Grazes , Lunar Phases , Driving Distance Calculator , Remote Control of PC165DNR ,
Atmospheric Extinction vs. Altitude=.4/sin(a) mags , magnitude vs. luminosity calculator
Free
WiFi hotspots in California , Comet /DSO Photo Op's
M67 Mag Chart , ToBuy
Cabrillo College Observatory ClearSkyClock 5-day forecast
Apr 21 Mon eve 11:58pm - Occultation of a 11.8 Star by 2000 RO19, from Empire Grade above fog.
Apr 22 Tue 11:58:56pm - Occultation of a 13.8 Star by 2000 SU41. North of Santa Cruz city, south of Karl, Cabrillo Observatory near centerline, but fog threatens. Alt=59 in Virgo. Planning page.
Apr 25 Fri 1-3pm - ProgPlan for cohort #2, SAC 202.
Apr 27 Sun 1:40am - Occultation of a 11.5 Star in Sagittarius. Alt=14, for 0.3s
May 6 - Sun crosses Saturn's ring plane and rings become very dim and irregular and quite thin. In morning sky.
May 17 - TrailQuake Half marathon
May 24 Sat - Give talk on Asteroid Astronomy for MIRA in Monterey. Dinner 5:30pm
May 31 - Wildcat Half Marathon
Jun 29 6pm Mars misses 24+ moon in late afternoon by just a few arcmin. Graze steep, in Baja. Photo op only.
July 7 - 3:30am - Occultation of a 12.4 Star by RECON asteroid Achates from LA to Las Vegas. Pretty hot in the desert, path not certain enough to make it worth the drive at the moment.It's also in the new FY 25/26 and may not be possible to reserve a van.
Aug 9 - Bear Creek Half Marathon
Aug 16 - June Lake Triathlon
Aug 23 - Double DipSea Race
Sept 7? - GraniteMan Challenge
Oct 4 - Auburn Half Marathon
Oct 18 - Mt Diablo Summit Stomp
November Late- mid December: Saturn's rings are less than 0.5 degree inclined, but still bright because now sunlit again.
Sep 5 - internet hosting plan expires and you must renew with the options you now desire before this date, else auto-charged.