Beta Monocerotis (Struve 919)

Sketch of Beta Monocerotis (Struve 919)

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Observation Notes:

Beta Monocerotis is a great multiple star. At low power, it appears to be a double star, but bumping up the magnification shows the eastern component to be a close double itself. Despite all three components being B class stars, I could not shake the impression of the primary appearing pale yellow. So, in my ongoing (and futile) effort to establish that I’m not a madman, I present other observes, some of whom have noted the yellow color too:

• M. Bracewell: All Yellow
• Nigel Puttick: All Yellow-White
• 33 Doubles Observing Project
  TIm Leese: White/Pale-White/Pale-White
  William Schart: All Yellow
  Patrick Thompson: All White
  Eddy O’Connor: White/Greenish-White/Greenish-White
  Luis Balanzino: All White-Bluish
• Cloudy Nights
  Vedran Vrhovac: All Cream-Yellow
  Rich N.: All Bluish-White
  Rich (RLTYS): Bluish-White(hint yellow), Bluish, White
  Mark K.: All Ice-Blue