spectrum of Kappa Orionis- Saiph - HD 38771 - SAO 132542 [B0.5Iavar]
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Telescope: Officina Stellare RC360AS, f/8, d=360mm | 2 Spectra with 300 lines/mm, processed with BASS project | Download spectrum FIT: saiph_2p70_3p10_1D.fit |
Spectrograph: Lhires III, 300gr, slit 23u | Calibrated with external XeNe-plasma-lamp spectrum, normalized flux | Download RAW (8MB): Saiph.zip |
Camera: SBIG ST10-Xe | Left spectrum 5 images (5x120s) | Download BASS project bundle: saiph_2p70_3p15.bun |
Resolution: 1.13 A / pixel, resolving power = 1400 | Right spectrum 6 images (6x120s) | |
Acquisition software: SbigControl | Dark corrected, cropped, enlarged by factor 2 and stacked with PixInsight | |
Date: 2. November 2014, UTC 02:00 - 03:00 | Calibrated, instrument response corrected and merged spectrum | |
Stellar data (Wikipedio.org): | ||
Constellation: Orion, RA: 05h 47m 45.38884s, Dec: −09° 40′ 10.5777″ | ||
v = 2.09 mag, Mv = -6.1 mag | ||
Rv = +20.5 km/s | ||
Distance: 650 +- 30 ly, 198 +-9 pc | ||
Mass: 15.5 +-1.25 MΘ | ||
Radius: ~ 22.2 RΘ | ||
Luninosity: 56881 LΘ | ||
Rotational velocity 83 km/s | ||
Age: 11.1 +-0.5 x 10^6 years |