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[vsnet-obs 32151] V4018 Sgr Decline
- Date: Thu, 8 Feb 2001 15:54:00 +1100
- To: "vsnet-obs" <vsnet-obs@kusastro.kyoto-u.ac.jp>
- From: "Peter F Williams" <pfwilliams@onaustralia.com.au>
- Subject: [vsnet-obs 32151] V4018 Sgr Decline
- Reply-To: <pfwilliams@onaustralia.com.au>
- Sender: owner-vsnet-obs@kusastro.kyoto-u.ac.jp
Further to vsnet-symbio 122 (04 Feb 2001), listed below are my observations
of V4018 Sgr from October 1999 through to end October 2000. The year 2000
observations appear systematically fainter than those of Berto Monard but
suggest a gradual decline may have commenced during 2000. I have been
using the V mag sequence shown on VSS RASNZ chart 1140 for the nearby nova
V4169 Sgr. This is the faintest this V4018 Sgr has been since I commenced
regular observation in June 1994, its usual range being between mags 11.7
and 12.1, occasionally dipping to 12.3. An improved sequence nearer to
V4018 Sgr would be beneficial should this star continue to decline.
STAR YYMMDD(UT) MAG OBSERVER
SGRV4018 19991017.468 118 WPX
SGRV4018 19991020.470 117 WPX
SGRV4018 19991028.435 121 WPX
SGRV4018 20000603.544 124 WPX
SGRV4018 20000605.452 126 WPX
SGRV4018 20000609.486 126 WPX
SGRV4018 20000711.534 122 WPX
SGRV4018 20000723.456 126 WPX
SGRV4018 20000724.437 126 WPX
SGRV4018 20000726.492 126 WPX
SGRV4018 20000804.479 126 WPX
SGRV4018 20000809.477 125 WPX
SGRV4018 20000821.468 124 WPX
SGRV4018 20000829.443 126 WPX
SGRV4018 20000910.447 126 WPX
SGRV4018 20000912.477 126 WPX
SGRV4018 20000916.425 126 WPX
SGRV4018 20000918.445 126 WPX
SGRV4018 20000921.459 126 WPX
SGRV4018 20000930.472 126 WPX
SGRV4018 20001001.426 127 WPX
SGRV4018 20001003.408 127 WPX
SGRV4018 20001005.442 127 WPX
SGRV4018 20001007.413 125 WPX
SGRV4018 20001010.425 126 WPX
SGRV4018 20001029.420 126 WPX
Regards
Peter Williams
Heathcote NSW
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