This asteroid is as big as a basketball court and it's about to skim past ...
Near Earth Asteroid 2026 JH2 is set to skim between the Moon's orbit and Earth on Monday 18 May 2026. Here's what we know and how to see it.
www.skyatnightmagazine.comHere’s a concise update on asteroid 2026 JH2 based on recent coverage.
Answer
- 2026 JH2 is a small near-Earth object that passed by Earth in May 2026 at a distance on the order of tens of thousands of kilometers. Reports consistently state there was no impact threat from this encounter.[1][3][6]
Key takeaways
- Closest approach: about 0.24–0.25 lunar distances (roughly 90,000 to 100,000 km) during mid-May 2026, with the closest moments around May 18, 2026 in many accounts.[2][3][1]
- Size and hazard: estimates place 2026 JH2 at roughly 15–35 meters in diameter; this size is well below the threshold for a Potentially Hazardous Asteroid (PHA), and its absolute magnitude suggests a small object with negligible regional threat.[3][10][1][2]
- Uncertainty: as a newly discovered, short-arc object, it carried relatively large orbital uncertainty during the approach (condition codes in the 7–9 range in some summaries), which is typical for such small bodies before more astrometric data accumulate.[1][2][3]
- Public visibility: some outlets projected the object to brighten to naked-eye or binocular visibility for observers at certain magnitudes, but any viewing would depend on atmospheric conditions and equipment; professional observers tracked the flyby to refine the orbit after the passage.[4][9][3]
Representative sources you can check
- A summary of the event and its non-hazardous classification: various space- and science-news outlets published after the flyby, highlighting the non-threatening trajectory and small size.[2][3][1]
- Public outlook on detection gaps and planetary defense implications: mainstream space-news discussions around detection limitations for small NEOs like JH2 and the importance of infrared surveys in the future (contextual entries from Sky at Night and Ground News-type outlets).[7][10]
Would you like me to narrow to:
- (a) how 2026 JH2 was tracked and how orbit uncertainty evolved after the flyby, or
- (b) practical tips for amateur observers who wanted to try spotting similar small NEOs in real time?