P Cygni

P Cygni is a blue supergiant star located in the constellation Cygnus. It is 76 times larger than the Sun and 30 times more massive.^[1] P Cygni is a luminous blue variable (or LBV for short) star, maybe even the first one discovered.

P Cygni Media

PCygLightCurve.png

A visual band light curve for P Cygni. The main plot is from AAVSO data. The inset plot, adapted from de Groot (1988), shows the variability for the first 400 years after the star's discovery.
P Cygni's characteristic and eponymous line profile for H-α

Related pages

References

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