Due to scheduling and geometry I could only snap last night's lunar eclipse with an older model cell phone on a pedestrian overpass of a brightly lit city street, but surprisingly the Moon was quite bright even during the totality phase (U2 to U3 (14.5 minutes) also see below) when the Moon was within the geometrical umbra of Earth's shadow.
2021-05-26 ---------------- U1 = 09:44:57 UT first contact with umbra U2 = 11:11:25 UT begin totatity U3 = 11:25:55 UT end totality U4 = 12:52:22 UT last contact with umbra
This eclipse just barely grazed the inside of the umbra.
The last total lunar eclipse I remember was quite a long time ago. It was more central and the Moon barely visible with night adapted eyes viewed from the countryside, so it's not a fair comparison.
But I'd like to ask anyway:
Question: Was the radial gradient of Earth's umbra unusually bright for the May 26, 2021 total lunar eclipse? Might there have been more light scattered from Earth's atmosphere into the umbra than average, due to weather or perhaps the recent eruption Mount Nyiragongo in the Democratic Republic of Congo? Or was the brightness of the northern edge of the Moon pretty much normal for this geometry?
above: Snapshot at
2021-05-26 11:23:58 UTC North is left (altered only to obscure a phone number on a sign)
below: from eclipse.gsfc.nasa.gov's Total Lunar Eclipse of 2021 May 26 found here. North is up