2014年天琴座變星
*.大溪地區春天幾乎全軍覆末...粉少有晴天可以進行觀測.好不容易當天晚上有機會.這幾顆都是粉老的變星,觀測數據已非常多.且多是長週期的脈衝mira變星.這類變星亮度穩定且不會太暗.因極適肉眼觀測.當日除了CCD例行觀測外,本想作目視觀測,可惜雲一直進進出出..只好專心工作於CCD取樣觀測. 大貓曰
當晚溫度:28度c 濕度82% 視狀2/5 透明度1-2/5 大溪地區
2014年6月1日 晚上21H48M -22H30M
10"SCT F/6.3 +ST2000XM(-5度c) 曝光60秒
1.2456810.07535JD 2014 JAN 1.5754 UT CGVS V LYR
V=13.9等
2.2456810.07882JD 2014 JAN 1.5788 UT CGVS V LYR R=13.5等
http://www.aavso.org/lcg/plot?auid=000-BCF-463&starname=V+LYR&lastdays=800&start=&stop=2456811.63667&obscode=&obscode_symbol=2&obstotals=yes&calendar=calendar&forcetics=&grid=on&visual=on&r=on&uband=on&bband=on&v=on&pointsize=1&width=800&height=450&mag1=&mag2=&mean=&vmean=3.2456810.08750JD 2014 JAN 1.5875 UT CGVS U LYR
V=10.9等
4.2456810.09028JD 2014 JAN 1.5903 UT CGVS U LYR R=9.05等
http://www.aavso.org/lcg/plot?auid=000-BCG-317&starname=U+LYR&lastdays=800&start=&stop=2456811.63667&obscode=&obscode_symbol=2&obstotals=yes&calendar=calendar&forcetics=&grid=on&visual=on&r=on&uband=on&bband=on&v=on&pointsize=1&width=800&height=450&mag1=&mag2=&mean=&vmean=5.2456810.08472JD 2014 JAN 1.5847 UT CGVS T LYR
V=8.3等
6.2456810.08611JD 2014 JAN 1.5861 UT CGVS T LYR R=7.8等
http://www.aavso.org/lcg/plot?auid=000-BCC-594&starname=T+LYR&lastdays=800&start=&stop=2456811.63667&obscode=&obscode_symbol=2&obstotals=yes&calendar=calendar&forcetics=&grid=on&visual=on&r=on&uband=on&bband=on&v=on&pointsize=1&width=800&height=450&mag1=&mag2=&mean=&vmean=*.2014年6月後,觀測報告應AAVSO要求,統一國際觀測規格,時間採JD和UT時制
*.對應AAVSO的觀測要求,天琴座 T變星 透過大溪天文台10"鏡及可見光和紅光取樣後,經軟體ASTROMETRY和PHOTOMETRY修正後測量定位和亮度情況.
TYGA TW大溪天文台
Alert Notice 441: Monitoring of Bright Giant Variables requested in support of ground-based spectroscopy and for long-term study
May 27, 2011: Dr. Steve Howell (NASA) and Dr. Travis Rector (University of Alaska, Anchorage) have requested AAVSO observations of several bright giant variable stars of diverse classes. This request is for immediate support of spectroscopic observations to be made at Kitt Peak National Observatory between 2011 May 30 and 2011 June 01 (JD 2455712 - 714). However, observers are encouraged to continue long-term monitoring of these objects.
Using the spectroscopy, as well as parallax measurements from Hipparcos and contemporary photometry from the AAVSO, the distance, luminosity, temperature and radius of these stars are determined. The goal of the project is to determine if the surface temperatures and radii of these stars change in a recognizable pattern over long timescales.
Spectroscopic observations will be made with the Kitt Peak Coude Spectrograph from May 30th to June 1st. Visual and photometric BVRI observations of these stars around this time are requested.
Below is the list of objects being monitored. The list is divided into two groups by priority.
Priority Targets
NAME RA(J2000) DEC(J2000) CURRENT MAG SEQ?
Z UMa 11:56:30.22 +57:52:17.6 m(vis) ~ 7.3
R CrB 15:48:34.4 +28:09:24.2 m(vis) ~ 13.1
SX Her 16:07:27.24 +24:54:29.9 m(vis) ~ 8.4
TT Oph 16:49:35.88 +03:37:54 m(vis) ~ 10.0
TX Oph 17:04:00.09 +04:59:00.7 m(vis) ~ 10.5(?)
AC Her 18:30:16.24 +21:52:00.5 m(vis) ~ 8.3
R Sct 18:47:28.94 -05:42:18.5 m(vis) ~ 5.3
Other Targets:
NAME RA(J2000) DEC(J2000) CURRENT MAG SEQ?
R Vir 12:38:29.94 +06:59:18.9 m(vis) ~ 11.1
Y CVn 12:45:07.82 +45:26:24.8 m(vis) ~ 5.4
g Her 16:28:38.54 +41:52:54 m(vis) ~ 5.1
UU Her 16:35:57.28 +37:58:02 m(vis) ~ 9.0
UZ Oph 17:21:59.26 +06:54:42.1 m(vis) ~ 11.3
V453 Oph 17:26:49.13 -02:23:36.3 m(vis) = ? ***
XX Oph 17:43:56.5 -06:16:08.7 m(vis) ~ 8.9
TZ Oph 16:29:07.71 -20:14:03.9 m(vis) = ? ***
V564 Oph 17:52:01.25 +07:56:29.1 m(vis) ~ 10.3
T Lyr 18:32:20.08 +36:59:55.6 m(vis) ~ 8.7
AD Aql 18:59:08.69 -08:10:14 m(vis) = ?
AR Sgr 18:59:42.14 -23:42:26.6 m(vis) = ?
V5569 Sgr 18:50:03.56 -26:24:15.4 m(vis) = ? ***
EP Lyr 19:18:19.55 +27:51:03 m(vis) ~ 10.6
EU Del 20:37:54.71 +18:16:06.3 m(vis) ~ 6.0
