Prismatic crab (1/2), apricot

Prismatic crab (1/2)

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Description

Two stars near the crab nebula used for calibration. At 21.5 A/px this is just very low resolution spectra, just for fun ! Still the H absorbtion Balmer lines are readily detected in the hot blue A star. Temperature was calculated (looking at the continuum) at 10 000 K. The K star is an orange giant, similar to those in the nearby Hyades cluster. The large bands correspond to molecules (eg TiO) in the cold (3500 K) chromosphere.

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Prismatic crab (1/2), apricot