ALL ANSWERS · SPACE · DAILY No. 49 · OCTOBER 22, 2026
Size It Up Space answer: October 22
The five Space silhouettes for October 22, with the true sizes. If you have not played yet, this page is a spoiler — play these five first, then come back to argue with the numbers.
Day 49 ran from TRAPPIST-1 e (11,740 km) to HD 209458 b (198,700 km). The widest gap was round 5, GJ 3470 b against GJ 1132 b, at 3.8×; the closest call was round 1, HD 209458 b against Proxima Centauri, only 1.0× apart — the kind of round that separates a 90 from a 60.
SPOILER · TODAY’S FIVE
You have not finished today’s puzzle on this device. The answers below are blurred so you can still play first.
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ROUND 1
HD 209458 b (estimated planetary diameter) vs Proxima Centauri (estimated stellar diameter)
Proxima Centauri · reference · 196,200 km HD 209458 b · true diameter · 198,700 km 1.0× wider than Proxima Centauri
HD 209458 b has an estimated planetary diameter of about 198,748.1 km. This is the body’s size, not an orbital distance.
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ROUND 2
TRAPPIST-1 e (estimated planetary diameter) vs K2-18 b (estimated planetary diameter)
K2-18 b · reference · 30,230 km TRAPPIST-1 e · true diameter · 11,740 km 2.6× shorter than K2-18 b
TRAPPIST-1 e has an estimated planetary diameter of about 11,735.7 km. This is the body’s size, not an orbital distance.
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ROUND 3
TOI-270 b (estimated planetary diameter) vs TRAPPIST-1 g (estimated planetary diameter)
TRAPPIST-1 g · reference · 14,400 km TOI-270 b · true diameter · 16,330 km 1.1× wider than TRAPPIST-1 g
TOI-270 b has an estimated planetary diameter of about 16,327.9 km. This is the body’s size, not an orbital distance.
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ROUND 4
TOI-700 d (estimated planetary diameter) vs Venus (mean diameter)
Venus · reference · 12,100 km TOI-700 d · true diameter · 14,610 km 1.2× wider than Venus
TOI-700 d has an estimated planetary diameter of about 14,605.8 km. This is the body’s size, not an orbital distance.
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ROUND 5
GJ 3470 b (estimated planetary diameter) vs GJ 1132 b (estimated planetary diameter)
GJ 1132 b · reference · 15,200 km GJ 3470 b · true diameter · 58,300 km 3.8× wider than GJ 1132 b
GJ 3470 b has an estimated planetary diameter of about 58,295.8 km. This is the body’s size, not an orbital distance.
Beat these tomorrow
Every round is worth up to 100 points: within 6% of the true size scores 100, half or double scores 45, five times off scores zero. The daily puzzle is the same five for everyone and refreshes at midnight in your time zone; if you want more than five, Size It Up Unlimited draws fresh pairs from the whole library for as long as you like.