Receding Late Volcanic Sunset Twilight Arches
Taken by Peter Lowenstein on May 5, 2025 @
Mutare, Zimbabwe
Click photo for larger image
| |
Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: Unavailable
|
|
| More images
Details:
Here are processed timelapse animations of three late volcanic sunset twilight arches receding under good seeing conditions on the 5th, 6th and 7th of May. They demonstrate that almost three-and-a-half years after the massive Hunga-Tonga eruption in mid-January 2022 there are still sufficient quantities of volcanic aerosols (particles) in the upper stratosphere to produce spectacular optical effects which can be observed from Mutare for up to an hour and a quarter after sunset when the weather is clear. The last composite image shows that glow from the late volcanic sunset twilight arches an hour after sunset can still extend almost to zenith and include planets and stars (in this case Sirius) that would normally be in complete darkness. ‘Star Spikes Pro’ filter has been used to enhance the brightness of celestial objects but the shades of colour in the late volcanic sunset twilight arches (which are not so obvious to the naked eye) are exactly as recorded using more than 1 second manual exposures at high ISO settings. Camera: Tripod-mounted Panasonic Lumix DMC-ZS40 in manual exposure mode.
Photographer's website:
No URL provided.
|
|
|
