📅 NSB Round Robin 2009🎓 HS🔄 Round 17#️⃣ Question 21🌟 BONUS✍️ Short Answer
If a supernova with an apparent magnitude of –2.0 was observed for the first time in the year 2,000 at 35.00 kiloparsecs from Earth, how many years before observation, rounded to the nearest whole number, did the supernova most likely occur?
✔️Answer:114
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