| 2012/05/20 (All day) | Annular Solar Eclipse | | |
| 2012/05/23 (All day) | RTMC Astronomy Expo | | |
| 2012/05/25 - 7:00pm | UCSC Venus Transit Lecture Series | | |
| 2012/05/25 - 7:30pm | Quail Hollow Star Party | Quail Hollow County Park | |
| 2012/06/01 - 7:00pm | UCSC Venus Transit Lecture Series | | |
| 2012/06/02 - 8:00pm | Full Moon Madness at Henry Cowell State Park | | |
| 2012/06/05 (All day) | Transit of Venus | | |
| 2012/06/14 - 7:00pm | Club Meeting - Elinor Gates "Untwinkling the Stars" | | |
| 2012/06/16 - 8:26pm | Bonny Doon Observing Night | Bonny Doon Airport | |
| 2012/06/21 - 8:31pm | Girl Scout Summer Camp at Henry Cowell | | |
| 2012/06/23 - 8:28pm | Bonny Doon Observing Night | Bonny Doon Airport | |
| 2012/06/30 - 8:00pm | Full Moon Madness at Henry Cowell State Park | | |
| 2012/07/12 - 7:00pm | Club Meeting - Monica Bobra "Studying the Sun with the Solar Dynamics Observatory" | | |
| 2012/07/13 (All day) | Yosemite Glacier Point | Glacier Point, Yosemite | |
| 2012/07/14 (All day) | Yosemite Glacier Point | Glacier Point, Yosemite | |
| 2012/07/14 - 8:24pm | Bonny Doon Observing Night | Bonny Doon Airport | |
| 2012/07/18 (All day) | Golden State Star Party 2012 | | |
| 2012/07/19 (All day) | Golden State Star Party 2012 | | |
| 2012/07/20 (All day) | Golden State Star Party 2012 | | |
| 2012/07/21 (All day) | Golden State Star Party 2012 | | |
| 2012/07/21 - 8:20pm | Bonny Doon Observing Night | Bonny Doon Airport | |
| 2012/07/22 (All day) | Golden State Star Party 2012 | | |
| 2012/08/04 - 7:30pm | Full Moon Madness at Henry Cowell State Park | | |
| 2012/08/09 - 7:00pm | Club Meeting | | |
| 2012/08/10 (All day) | Lassen Dark Sky Festival | | |
| 2012/08/10 - 8:00pm | Quail Hollow Star Party | Bonny Doon Airport | |
| 2012/08/11 - 8:00pm | Bonny Doon Observing Night | Bonny Doon Airport | |
| 2012/08/15 (All day) | Oregon Star Party | | |
| 2012/08/18 - 7:51pm | Bonny Doon Observing Night | Bonny Doon Airport | |
| 2012/09/08 - 7:22pm | Bonny Doon Observing Night | Bonny Doon Airport | |
| 2012/09/13 (All day) | CalStar 2012 | | |
| 2012/09/13 (All day) | Monthly Meeting Changed | | |
| 2012/09/14 (All day) | CalStar 2012 | | |
| 2012/09/15 (All day) | CalStar 2012 | | |
| 2012/09/15 - 7:13pm | Bonny Doon Observing Night | Bonny Doon Airport | |
| 2012/09/22 - 4:00pm | Club BBQ/Potluck | | |
| 2012/10/11 (All day) | Nightfall Star Party | | |
| 2012/10/13 - 6:29pm | Bonny Doon Observing Night | Bonny Doon Airport | |
| 2012/10/19 - 7:30pm | Quail Hollow Star Party | Quail Hollow County Park | |
| 2012/10/20 - 6:20pm | Bonny Doon Observing Night | Bonny Doon Airport | |
| 2012/10/26 (All day) | Advanced Imaging Conference | | |
| 2012/11/10 - 4:57pm | Bonny Doon Observing Night | Bonny Doon Airport | |
| 2012/11/17 - 4:53pm | Bonny Doon Observing Night | Bonny Doon Airport | |
| 2012/12/08 - 4:47pm | Bonny Doon Observing Night | Bonny Doon Airport | |
| 2012/12/15 - 4:49pm | Bonny Doon Observing Night | | |
