BX Peg
Pegasus · 04/09/2017 - 22:00 UTC · Officina Stellare Advanced RILA 400 f/5.25
About the target
EW- KW
EW-Ursae Majoris-type eclipsing variables. These are eclipsers with periods usually shorter than 1 day, consisting of ellipsoidal components almost in contact and having light curves for which it is impossible to specify the exact times of onset and end of eclipses. The depths of the primary and secondary minima are almost equal or differ insignificantly. Light amplitudes are usually <0.8 mag. in V. The components generally belong to spectral types F-G and later.
KW
Contact systems of the W UMa type, with ellipsoidal components of F0-K spectral type. Primary components are main-sequence stars and secondaries lie below and to the left of the main sequence in the (MV, B-V) diagram.
'The Artistic Image above, reproduced courtesy of Mark A. Garlick / markgarlick.com (opens in a new tab). No unauthorized use".
© Nikos Paschalis
Observing log
- Object
- BX Peg
- Constellation
- Pegasus
- V. Magnitude + Variability
- 10.8-11.53 V/ EW/KW
- RA / DEC
- 21h:38m.49sec / +26°41m.34sec
- Period
- 0.280041636 days
- Comparison star
- GSC 2197:1933
- Check star
- GSC 2197:1328
- Date + Time
- 04/09/2017 - 22:00 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: 7.7 Hours
- Mount
- Paramount ME
- Guiding
- Unguided
- Processing Details
- ACP, Muniwin
- More Details
- Environment Temperature: 21 °C Camera Temperature -25 °C
- Sky temperature
- 8.4. οC
- Notes
- Weather: Clear Transparence: Medium Humidity: 75-85%
- Moon Illumination
98%