Packet 7: Bonus 11
A majority of the stars in the universe are on this diagram’s “main sequence.” For 10 points each:
[10e] Name this doubly-eponymous diagram that plots stars’ temperature against luminosity.
ANSWER: Hertzsprung-Russell diagram [or H-R diagram]
[10m] Young stars descending the Hayashi track on H-R diagrams are classified as “T” type variable stars named for this constellation. A 1054 supernova in this constellation created the Crab Nebula.
ANSWER: Taurus
[10h] H-minus ions in protostars on the Hayashi track cause this quantity to follow Kramers’ law. This quantity drives convective transport and pulsations in the kappa mechanism.
ANSWER: opacity
<Science - Astronomy, Aveek Sarkar> | VAULT II Packet 07
| Heard | PPB | E % | M % | H % |
|---|---|---|---|---|
| 44 | 14.32 | 96% | 46% | 2% |
Conversion
Summary
| Tournament | Edition | Match | Heard | PPB | E % | M % | H % |
|---|---|---|---|---|---|---|---|
| VAULT II at Georgia Tech | 2026-01-24 | ✓ | 6 | 16.67 | 100% | 67% | 0% |
| Triangle Cup | 2026-03-13 | ✓ | 3 | 16.67 | 100% | 67% | 0% |
| VAULT II at Eden Prairie HS | 2026-03-13 | ✓ | 3 | 13.33 | 100% | 33% | 0% |
| VAULT II at McGill | 2026-03-13 | ✓ | 4 | 12.50 | 100% | 25% | 0% |
| VAULT II at UCSB | 2026-03-13 | ✓ | 5 | 16.00 | 100% | 60% | 0% |
| VAULT II Northern UK | 2026-04-24 | ✓ | 3 | 6.67 | 67% | 0% | 0% |
| VAULT II Southern UK | 2026-04-24 | ✓ | 4 | 10.00 | 75% | 25% | 0% |
| VAULT II at Harvard | 2026-04-30 | ✓ | 3 | 13.33 | 100% | 33% | 0% |
| VAULT II at MINT | 2026-06-19 | ✓ | 5 | 16.00 | 100% | 60% | 0% |
| VAULT II Stanford Online | 2026-07-17 | ✓ | 8 | 16.25 | 100% | 50% | 13% |