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Dear colleagues, We have received The VSNET Collaboration members additional data of V1141 Aql in the ongoing superoutburst from the VSNET Collaboration member, Tom Krajci. A preliminary period analysis of the data in July 4-6 indicates 0.06308(8) d (= 90.8 min), again favoring the longer possibility. The superhump period (Psh) seems to be getting a little longer, and this superhump period is on the borderline of SU UMa stars showing a Psh increase or decrease (see Kato et al., 2001, PASJ, 53 1191). The decline rate has been 0.14 mag/d these days, and V1141 Aql is V=15.0 or fainter, now. This may be slightly too faint for observers, but we strongly encourage you to try the observation of this star to clarify the period change of the superhump! Best regards, Daisaku Nogami
Return to the Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
