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Dear Mati, > I have looked up the ASAS-3 light curve for NSV 2954, and it > contains some intriguing observations. The ASAS-3 log for this star > commences when it was significantly below its normal brightness. It dropped > to 8.48V at one point (HJD 2451875), returning to max. by 2451884. ASAS-3 system saturated around V= 8.0 at the early days. I have been systematically using ASAS-3 data at several brightness levels, and the fading patterns at the dates you mentioned are very familiar to me. They are not actual variations but saturation effects. > The ASAS-3 does confirm the variability of NSV 2954, and provides a > definitive range - 7.54 to 8.48V. The type of variation, and period (if > any), are in doubt. For bright stars, the observations prior to HJD 2452350 must be discarded in any analysis like yours. So ASAS-3 data shows it is a rather constant star with V= 7.56. The long-period eclipsing binary possibility of course can't be ruled out and it can even be a short amplitude eclipser since there are three points at 7.61-7.62. But they are likely measurement errors so all the bets go for a constant star at V= 7.56. Regards, Sebastian. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://vsnet.grisoft.com). Version: 6.0.518 / Virus Database: 316 - Release Date: 12/09/03
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