W Crucis
Eclipsing binary with a hidden star and accretion disk.
W Crucis is an eclipsing binary in Crux where only the yellow supergiant is visible; its more massive companion is hidden inside an accretion disk. The system shows the O'Connell effect, with uneven brightness peaks. Its magnitude ranges from 8.18 to 9.01 every 198.5 days.
Quick Facts
- Spectral class
- F8/G1Ia/abe
- Brightness range
- 8.18 to 9.01 magnitude
- Period
- 198.5 days
- Secondary minimum magnitude
- 8.5
- Hidden star type
- mid-B main sequence star
Facts from the source article.
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