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Date + Time ................................
02/04/2018 - 18:00 UTC
Location ....................................
"Nunki Observatory" - Skiathos
Optics .........................................
Officina Stellare Advanced RILA 400 f/5.25
Tools .......................................... THE SKY
X
Camera ......................................
SBIG
STXL11002 with FW8G-STXL (Astrodon
filters)
Exposure Time.........................
Rc: 7.1 Hours
Mount ....................................... Paramount
ME
Guiding .................................... Unguided
Processing Details .................. ACP , Maxim , Muniwin,
More Details ...........................
Environment Temperature : 13 oC Camera Temperature -35 οC
Sky temperature ..................... -8.0. οC
Notes ........................................ Weather:
Clear Transparence:
Medium
Humidity : 65-75 %
Moon Illumination ............... 94%
Target details ......................... EA-β
Persei-type (Algol) eclipsing systems.
Binaries with spherical or slightly ellipsoidal components. It is
possible to specify, for their light curves, the moments of the
beginning and end of the eclipses. Between eclipses the light
remains almost constant or varies insignificantly because of
reflection effects, slight ellipsoidality of the components, or
physical variations. Secondary minima may be absent. An extremely
wide range of periods is observed, from 0.2 to ≥10000 days. Light
amplitudes are also quite different and may reach several
magnitudes.
HW-
HW Vir-type systems consisting of a hot subdwarf and
a red or brown dwarf companion. These show a significant reflection
effect.
'The Artistic Image above, reproduced courtesy of Mark A. Garlick / markgarlick.com.
No unauthorized use". |
