How High Can Ethereum Go This Cycle? Analyst Astronomer Maps the ETH/BTC Road Ahead

Crypto analyst Astronomer (@astronomer_zero) says his long-held bottom thesis on the ETH/BTC pair has played out, and he is now publishing explicit cycle targets anchored to the cross. In a chart shared on X, he reiterated that the “ETH bottom call” is confirmed, framing his roadmap entirely through ETH/BTC levels rather than ETH/USD. His reasoning is that Ether’s strongest moves typically follow Bitcoin’s impulses and that “all major liquidity comes from BTC.”

ETH/BTC as the Key Cycle Driver

Astronomer explained that his analysis has always centered on a multi-month ETH/BTC zone he marked in advance as a potential cyclical inflection. At the time, the projection looked “delusional”—a straight upward line from what seemed like an impossible bottom. But, according to him, the market turn aligned perfectly with his proprietary sentiment indicators.

He noted that sentiment on Ether was historically low, with narratives dominated by claims that “ETH is a bad investment,” “ETH Foundation is selling,” “SOL is the new ETH,” and “utility coins are dead.” Such extreme negativity, he argued, allowed him to confirm the bottom for ETH/BTC once it hit his projected zone.

Cycle Targets and Market Path

Against that backdrop, Astronomer outlined three ETH/BTC targets for this cycle. His first target is 0.058 BTC per ETH, a level that—at the time of posting—was still about 35% higher than the prevailing ratio. At current Bitcoin prices, that would imply Ethereum around $6,500.

The second target is 0.091 BTC, nearly a doubling from current levels and equivalent to Ethereum surpassing $10,000. Astronomer remarked that this would be the stage where he expects to sell more than half of his spot holdings.

The highest and most aspirational target he cites is 0.16 BTC, which would equate to Ethereum trading above $20,000. He stressed, however, that while he leaves this possibility open, it is not his base case scenario.

A Pair-Driven Framework

Astronomer deliberately grounds his analysis in ETH/BTC rather than ETH/USD, arguing that the ratio provides a clearer picture of relative strength while avoiding the moving baseline of Bitcoin’s dollar price. The USD equivalents in his post are simply ratio × BTC, and he added that those numbers will likely prove conservative because he also expects Bitcoin to appreciate further.

He rejects seasonal trading heuristics outright, dismissing ideas like “red September” or “sell in May” as weak data with no predictive power. “Seasons don’t work in markets, only cycles do,” he wrote, closing with a tongue-in-cheek jab: “For red September, kindly, visit your local forest.”

Positioning and Market Psychology

Finally, Astronomer addressed market psychology. Although many traders appear publicly bullish on Ethereum, he believes the majority either did not accumulate at the lows or are now being forced to enter positions at higher prices with greater leverage. That dynamic, he argues, continues to favor upward momentum toward his ETH/BTC targets.

At the time of writing, Ethereum was trading at $4,621.