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Dear colleagues, On Mar. 29, 2000, we reported the recovery of NSV 24062 in [vsnet-alert 4493]. NSV 24062 was registered as V4683 Sgr based on that research in IBVS 5135. Please see the following page for more information. http://vsnet.aerith.net/misao/report/variable/NSV24062.html The GCVS record says it is a Mira type variable with a range of 10.8 - 19 mag. The maximum is based on the unfiltered CCD observations by the MISAO Project. The minimum is based on the brightness in 1950 reported in IAUC 6051. However, the observation in 1950 as 19 mag(B) is probably the measurement of a wrong star. Investigating the Palomar plate image at: USNO Flagstaff Station Finder Chart Service http://vsnet.nofs.navy.mil/data/FchPix/cfra.html there is a faint star at the position reported in IAUC 6051, which is much fainter than USNO-A2.0 0600.29857911, R.A. 17h59m38s.751, Decl. -25o13'35".22 (2000.0), 17.4 mag(R), 19.5 mag(B). The observation in 1950 as 19 mag(B) is probably the measurement of this star. NSV 24062 = V4683 Sgr is visible as bright as USNO-A2.0 0600.29861509, R.A. 17h59m41s.141, Decl. -25o13'36".76 (2000.0), 15.2 mag(R), 16.3 mag(B), so roughly around 15 mag(B). The observation in 1976 as 14-15 mag(B) is correct. Therefore, the brightness range of NSV 24062 = V4683 Sgr is much smaller than recorded in the GCVS. The minimum is probably around 15 mag(B). Best regards, -- Seiichi Yoshida comet@aerith.net http://vsnet.aerith.net/
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