Showing posts with label Perseids. Show all posts
Showing posts with label Perseids. Show all posts

Thursday, 14 August 2025

Meteors - 23:00 to 1:00 bst - 12 -13 August 2025

 

Meteors captured over 2 hours, seen against the majesty
of the Milky Way running through Cygnus.
Taken with the Canon 600d DSLR
with a Sigma wide angle lens at f =15mm.
all mounted on Star Adventurer EQ mount.
Credit: Kurt Thrust
"The Perseid meteor shower was expected to peak on the 12th of August, so the JPO team were out meteor watching for about 2 hours. In that time we spotted about 10 meteors. The Moon was just past full and made meteor observation, photography and post capture image processing difficult. Kurt set up the Observatory mini-rig with our old Canon DSLR and we all hoped for the best. The above compilation image was processed by Kurt and shows six  meteors of which two are possibly Geminids and the rest either Delta Aquarids or sporadic meteors. The two very bright stars are Deneb and Vega.".  - Joel Cairo CEO of the Jodrell Plank Observatory.

"On warm August nights, the Perseid meteor shower fills the sky with swift, bright streaks of light, each one seeming to spill from the constellation Perseus. These meteors are tiny fragments shed long ago by the comet Swift–Tuttle, which swings around the Sun every century and a bit, leaving a dusty trail in its wake. As Earth plows through this trail, the particles strike our atmosphere at nearly 59 kilometers per second, burning up in a brief, brilliant flash. Many leave behind glowing trails that linger for a moment before fading. Around the 12th and 13th of August, the display is at its best, sometimes producing more than a hundred meteors an hour under dark skies.

By late July, another, quieter shower has already been at work: the Delta Aquarids. These meteors seem to fan out from the “water jar” of Aquarius and are gentler, slower streaks than the Perseids. They most likely come from the remains of Comet Machholz, though astronomers are not entirely certain. Drifting into the atmosphere at about 41 kilometers per second, they tend to be fainter, with a steadier, more ghostlike appearance. Their peak comes around the 28th to 30th of July, when in the right location, perhaps twenty meteors an hour might be seen. They may be seen until about the 15th of August and there is an overlap with the Perseid shower.

Even when no shower is active, the sky offers its own small surprises. On any given night, a patient watcher might see a handful of sporadic meteors — lone flashes from random directions. These are the wandering dust and pebbles of the Solar System, leftovers from shattered comets, broken asteroids, and drifting interplanetary debris. Some arrive lazily, skimming the atmosphere at just over 11 kilometers per second, while others come screaming in at more than 70. They are unpredictable, unscripted visitors, making each one feel like a small gift from space". - Karl Segin outreach officer at the Jodrell Plank Observatory.



Just showing two Perseids
and a different rendition of the Milky Way stars.

Thursday, 27 July 2017

The Perseids are coming


Comet the Observatory cat sitting on top of the Cabine next to the Yagi Aerial an integral part of the LVST (Lowestoft Very Small Telescope)
" This afternoon, I noticed the cat sitting on top of Cabine du Jardin Deux next to the Yagi aerial and this reminded me that it would soon be time to turn on the LVST to monitor the 2017 Perseid Meteor Shower. 

The LVST uses software defined radio and Spectrum Lab to record and analyse forward scattered radar reflections from meteors burning up in the atmosphere over southern France. 


The peak of the Perseid Shower will occur on the night of the12/13th. of August.  The Moon will be just 5 days past full and it will mean that visual observers will see only the brightest meteors. If the weather is good, meteor watching from a deckchair can be great fun.  From 11.00pm. - until the early hours of the morning - usually provides the best time to view Perseids.  This year because of the position  and brightness of the Moon, it may be best to look towards the constellation of Ursa Major - the Great Bear rather than towards the shower radiant which is located at the border between the constellations - Perseus - Cassiopeia -Camelopardalis." - Kurt Thrust - current Director of the Jodrell Plank Observatory.
 
Screenshot from Spectrum Lab - 3D Waterfall - showing radar reflection from the plasma surrounding a Perseid Meteoroid as it burned up in the atmosphere somewhere over France in early August (Pre-peak) 2015
Info for capture "c:\Spectrum\screenshots\event150802041909"
-------------------------------------------------------------------
Date=2015-08-02 time=04:19:09
Contrast=99 Brightness=101
Noise(n)=-112.228dB, Peak_f=2160.955Hz, Peak_a=-75.989dB