Starshoot DSCI, 30 exposures, 60s each 5/28/10 Palo Alto, CA
This was taken right outside our front door, near a bright lamp and with a nearly full moon.
ST-4000XCM, 2100s total exposure 6/3/12 Palo Alto, CA
M51 from patio.
SBIG ST-4K, 2400s total exposure 5/30/14 Monte Bello, CA
M51 was almost straight overhead, but the air was very humid with dew forming on everything. There was fog in the valley even at sunset, and we were wondering if it would reach the Monte Bello parking lot. After about 45 minutes of exposure the fog finally came in and we had to stop.