Reports Report 8173r (Event 8173-2025)

Observer
Name Birch S
Experience Level 2/5
Remarks Narrative Description (What I Saw) On November 9th, 2025, at approximately 1:30 AM PST, in the suburbs of Portland, Oregon, I observed two separate bright blue luminous events in the sky, about 10 minutes apart. My brother was also present and witnessed both events. First Event (~1:30 AM PST) While facing southwest, I saw a light-blue, uniformly colored spherical object appear in the western sky, slightly south of due west. It moved across the sky from west toward south, covering a large arc of sky. The object was visible for approximately 4 seconds. The object did not produce a visible tail; instead it left behind a brief “tracer” effect — multiple repeating circular afterimages of the same size, like short-duration light imprints, but not a streak. The object appeared as a clean-edged, light-blue sphere, the same hue from center to edge. Its apparent size at arm’s length was roughly comparable to a grape (my brother described it as the size of an apple), and its brightness was significant but did not illuminate the surroundings during the first event. After this first sighting, we noticed a low, modulating, drawn-out sound that persisted and faded in and out during the overall observation window. Second Event (~1:40 AM PST) Approximately ten minutes later, while facing generally toward the west-southwest, a second, much brighter light-blue sphere appeared in the sky. Its appearance was nearly instantaneous — it seemed to “come into being” rather than move into view, and it remained stationary from my perspective. It appeared larger than the first event, approximately the size of an orange at arm’s length (my brother compared it to a gym ball visually, indicating it appeared very large and close). This second light lasted roughly 0.8–1.4 seconds and produced a very bright flash that illuminated the side of my house and the surrounding area. It appeared in the same region of sky where it disappeared, reinforcing the sense that it remained stationary the entire time. Both events were the same light blue color, with no sparks or fragmentation visible. ⸻ Color Light blue (uniform across the object, center and edges alike). Not turquoise, not electric blue — closer to a pale, cool light-blue. ⸻ Brightness • First event: Bright, easily visible, no ground illumination. • Second event: Extremely bright; produced a clear flash that illuminated the house and yard. ⸻ Duration • First event: Approximately 4 seconds. • Second event: Approximately 0.8–1.4 seconds. ⸻ Sound A low-pitched, modulating tone was heard during the total period covering both events. The sound was drawn-out, fluctuating in amplitude, somewhat similar to the vowels in “wow… wow… wow…” but much lower in pitch and stretched out. The sound faded in and out and did not have a distinct start or end point. We first noticed it after the first visual event. The sound did
Location
Address Portland, OR
Latitude 45° 27' 31.38'' N (45.458716°)
Longitude 122° 41' 11.03'' W (-122.686398°)
Elevation 119.405632m
Time and Duration
Local Date & Time 2025-11-09 01:35 PST
UT Date & Time 2025-11-09 09:35 UT
Duration ≈3.5s
Direction
Moving direction From up right to down left
Descent Angle 221°
Moving
Facing azimuth 223.87°
First azimuth 229.14°
First elevation 16°
Last azimuth 163.64°
Last elevation
Brightness and color
Stellar Magnitude -23
Color Light Blue
Concurrent Sound
Observation Yes
Remarks A low-pitched, modulating tone was heard during the total period covering both events. The sound was drawn-out, fluctuating in amplitude, somewhat similar to the vowels in “wow… wow… wow…” but much lower in pitch and stretched out. The sound faded in and out and did not have a distinct start or end point. We first noticed it after the first visual event. The sound did not correlate sharply to the flashes, and may not have been directly connected.
Delayed Sound
Observation Yes
Remarks A low-pitched, modulating tone was heard during the total period covering both events. The sound was drawn-out, fluctuating in amplitude, somewhat similar to the vowels in “wow… wow… wow…” but much lower in pitch and stretched out. The sound faded in and out and did not have a distinct start or end point. We first noticed it after the first visual event. The sound did not correlate sharply to the flashes, and may not have been directly connected.
Persistent train
Observation No
Duration -
Length -
Remarks -
Terminal flash
Observation No
Remarks -
Fragmentation
Observation No
Remarks -