Cabrillo College Observatory ClearSkyClock
5-day forecastAs of May 25, 2026. Check out past events here.
Overleaf to Write Papers , How to Report a CBET , and 50 most recent CBETs ,
Asteroid Occ Predictions: Steve Preston's , Derek Breit's , Calif Path Maps , GAIAMoons Predictions , IOTA Observations , Report Template ,
IOTA Hub , Reporting ACROSS events
ACROSS Predictions with maps , RECON Predictions through 2029 , RECONN Trojan Events Upcoming , Dunham's List of 2025 Best Events
LineA Occultation Prediction Database (very comprehensive) , Naming Minor Planet Discoveries , NEA Occultations alerts at RASC
LuckyStar Portal , Journal of Occultation Astronomy Issues , GAIA Astrometric Asteroid Binaries List , RASC high value '25 Occs
Software: Using AVIsynth , TANGRA , Making Aladin Finder Charts , Visual Limiting Mag , Registax and Occ Video , UCAC4 details
Install PyOTE/Pymovie/PyOTE , 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 , OWc predictions
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 , Occ8SE-Instructions
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
M67 Mag Chart
Cabrillo College Observatory ClearSkyClock 5-day forecast
'25/26 Flex Activities:
Wed Aug 20 12-1pm - CCFT Luncheon at Hort 5005 (late approved but I had not reg'd 1hr)
Wed Aug 20 3-5pm - CTC Connection, at the CTC center 1400 (reg'd, done)
Thur Aug 21 3-5pm - use this for Program Planning work at the Dept level. NOT Fri 3-5pm because that interferes with Astro Dept meeting.
Fri Aug 22 - Fri 2-4pm?? Astro Dept meeting (not created). Maybe instead slot this for 9-11pm so can use for AM3 and Will Glass meetup at observatory?
talk at Chabot
Watsonville show/tell in September
Nov 6, Thur 6:15pm - Natalie Batalha at the Music Center UCSC, talk on exo-planets. I'm reg'd
Dec 3, Wed 5-7pm - Community Star Party at Cabrillo Observatory. Highlights; Saturn rings edge on, Jupiter, Orion Nebula, star clusters.
Jan 12 Mon - 1:15pm at ISB 221 UCSC - climate scientist Ben Santer talks.
Jan 21 Wed eve - dinner with Zeke Hausfather with EFI/UCSC-CAN. 6pm at Avante
Jan 22 Thur - FGSS Grant ceremony (2hr)
Jan 23 Fri - STEM meeting (2.5hr) , Astro Dept meeting at Observatory (4hr)
Feb 26 Thur 3:30pm @ CfAO Atrium - Climate Salon #5 w/ Patrick Chuang - "Energy and Material Constraints on a Fossil Fuel Free World". See Sandy's email 2/17.
Apr 16 - Thur 11:30am - Zoom session for response if ICE invades campus. Flex credit 1.25 hrs. Zoom link
Apr 30 Thur afternoon "Planetary Health" panel at Seymour Center 4-6pm. I'm reg'd
May 7 5:30pm- Scholarship potluck/celebration at Hort. Jordan featured too.
May 11 Mon eve 8-10pm - Community Star Party at Cabrillo Observatory
May 13? Rosemary Greiner Peace Awards
May 15 - Celebration for Cabrillo SA's, at Coconut Grove
June 1 Mon eve 9:40:21pm - Occultation of a W=14.6 Star by Theresaoei, in Santa Cruz and Empire Grade/SLV. 3.9s duration, Alt=43 Az=183 in Virgo. Planning page
June 3 Wed morn 12:35am - Occultation of a 12.5 Star for 2.5s, for all of our team members, from Karl on south. Alt=26. Planning page
June 3 - Wed eve 10:22pm - Occultation of a W=9.5 star for 0.2s by Asteroid 2002 JF148, from BD Airfield or SV Middle School. Planning page
June 22-26 Code/Astro at UCSC Python programming workshop
July 27 9pm - Occultation of 10th mag star by Juno, through Santa Cruz and northern CA. Low in the east.
Aug 11 - Occultation north of SF along the coast of Asteroid 2000 NN3, recorded as a new binary asteroid by Ted Swift early this year, and it's making a come back. Worth an expedition. May interfere with Barcroft? Maybe combine with Kirk for a trip to both and perhaps events in between?
Aug mid - Barcroft Labs trip. Stay tuned with CLK, look for 'roids opportunities. I have van approval
Aug 23 - Sun - Sandman Triathlon
Aug 27 - almost total lunar eclipse in early evening.
Sep 5 - internet hosting plan expires and you must renew with the options you now desire before this date, else auto-charged.
Sept 11,12,13 - GraniteMan Challenge. Ask High Sierra Tri Club if GraniteMan is official this year.
Dec 1 - Dr. Palachek 6:30am