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Date + Time ................................ 6/5/2011 - 19:30 UTC
Location ....................................
"Nunki Observatory" - Skiathos
Optics .........................................
Celestron C 11 HD
Tools .......................................... CCDsoft
Camera ......................................
SBIG ST 10 XE
Exposure Time.......................
Red: 2.5 Hours
Mount ....................................... Paramount
ME
Guiding .................................... Unguided
Processing Details ................
Maxim , CCDsoft , AIP4WIN
Notes ........................................ Weather:
8/10 Transparence: 4/6 Humidity : 80 %
Sky Temprature....................... -10 οC
More Details ...........................
Environment Temperature : 20 oC Camera Temperature - 1.5 οC
Moon Illumination ............... 11%
Target details .........................
A Delta Scuti variable (sometimes termed
dwarf cepheid) is a
variable star which exhibits variations in its
luminosity due to both radial and non-radial pulsations of the
star's surface. Typical brightness fluctuations are from 0.003 to
0.9
magnitudes in
V over a period of a few hours, although the
amplitude and
period of the fluctuations can vary greatly. The stars are
usually A0 to F5
type
giant or
main sequence stars. The high-amplitude Delta Scuti variables
are also called AI Velorum stars. They are the second most
abundant variable source in the Milky Way after white dwarfs.The
variability of period and amplitude of the high-amplitude δ Scuti
star YZ Boo was thoroughly investigated by scientists based on a
comprehensive analysis of new time-series photometry and other
available data
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