Hi all... I have been using the Sierra Stars 24" in CA over the last couple of years... Over time, I have migrated from trying to capture unfiltered CV outbursts to trying to capture the minimum of legacy and under-observered LPV's in Johnson V... My LPV program includes the following stars and I try to do a 5 to 7 day cadence:
R AND, U AND, X AND, RS AQL, X AQL, Z BOO, U CAP, U CAS, R CET, S CET, W CRB, R GEM, RS LYR, W LYR, Z LYR, R OPH, S OPH, T OPH, R SER, R TAU, V TAU, RR VIR and I will be adding others in the near future...
The Sierra Stars 24" is cheap at $0.85 per 30 second V exposure... Such an exposure can get down to magnitude 15.5 easily (or slightly deeper) at +-0.1 error... And an automatic download to VPHOT also !!! Check out my CCD results for the above stars on the LCG...
I try to hit the minimums with CCD and hit the maximums either visually or with a DSLR... I hope to be using my Canon XSi (450D) for photometry brighter than magnitude 9 in the near future... I is amazing to see what my Canon and a 200mm. telephoto will do at ASA 800 with a 3 to 5 second exposure...
Hi again to all in the LPV Group... Kevin B. Paxson - PKV
Links:
[1] http://www.aavso.org/forums/variable-stars/long-period-variables-lpvs