迷：月亮表面上的三角形的东西是什么？
相机是Nikon D70, 镜头是sigma 50-500mm, 10月6日晚上照的月亮的照片，拍了几十张照片，发现月亮表面上有三角形的东西。不知道是什么，问Gemini，他说不知道，让我问其他的问题; 问chatGPT，因为已经是第3次输入图片，让我明天再问；问grok, 回答是：
The image you've shared appears to be a high-contrast photograph of the full Moon, captured on or around October 6, 2025—the date of the year's first supermoon, known as the Harvest Moon (or Hunter's Moon). This was a notable event, as the Moon reached perigee (its closest point to Earth) while fully illuminated, making it appear up to 14% larger and 30% brighter than average. The dark, grainy appearance with stark shadows is typical of handheld or low-light lunar photography, where the Moon's illuminated side dominates against the black void of space, and surface details like maria (basaltic "seas") and highlands emerge in grayscale.
Regarding the "triangular-shaped thing" on the lunar surface: Based on the visible features in your photo, this is most likely the Aristarchus Plateau (or a nearby formation like the nearby crater Schröter's Valley), a prominent volcanic highland region in the Moon's northwestern quadrant (near Oceanus Procellarum). Here's why this fits:
- Shape and location: The Aristarchus Plateau forms a roughly triangular or wedge-shaped elevated area, about 150 km across, bordered by rugged scarps and lava flows. In full-Moon photos like yours (taken near opposition), low-angle sunlight creates long shadows that accentuate its edges, making it stand out as a dark, angular patch amid brighter highlands. Your image shows a distinct dark triangular blotch near the Moon's limb (edge), which aligns with this feature's position during the October 6 phase.
- Context for October 6, 2025: The Harvest Moon's orientation (facing Earth fully) highlighted western lunar features like this due to libration (the Moon's slight wobble). No new anomalies, landers, or artificial objects were reported on the Moon around this date—NASA's Lunar Reconnaissance Orbiter (LRO) data shows no changes, and global observatories confirmed only routine transient lunar phenomena (TLPs) like minor gas outgassing, none triangular.
- Common misidentification: This region has sparked speculation for centuries (e.g., 18th-century astronomers like William Herschel noted "lights" here, later attributed to volcanism). Modern pareidolia (seeing patterns) often calls it a "base" or "craft," but high-res LRO images reveal it's ancient lava-dammed highlands, not artificial. If it's not Aristarchus, it could be the triangular shadow play from Mare Imbrium's edges or a libration effect on Mons Rümker.
If this doesn't match what you're seeing (e.g., if the triangle is more central or has "lights" like in old Google Moon artifacts), it might be an imaging artifact from overexposure or compression—upload a higher-res version or coordinates for a precise match. For real-time lunar exploration, check NASA's LRO viewer or apps like Stellarium to overlay your photo. No evidence of anything artificial or anomalous was detected on October 6, 2025; the Moon's surface remains geologically static.
