APOD: Lightning over the Volcano of Water (2019 Jul 29)

Comments and questions about the APOD on the main view screen.
User avatar
APOD Robot
Otto Posterman
Posts: 3635
Joined: Fri Dec 04, 2009 3:27 am

APOD: Lightning over the Volcano of Water (2019 Jul 29)

Post by APOD Robot » Mon Jul 29, 2019 4:06 am

Image Lightning over the Volcano of Water

Explanation: Have you ever watched a lightning storm in awe? Join the crowd. Details of what causes lightning are still being researched, but it is known that inside some clouds, internal updrafts cause collisions between ice and snow that slowly separate charges between cloud tops and bottoms The rapid electrical discharges that are lightning soon result. Lightning usually takes a jagged course, rapidly heating a thin column of air to about three times the surface temperature of the Sun. The resulting shock wave starts supersonically and decays into the loud sound known as thunder. On average, around the world, about 6,000 lightning bolts occur between clouds and the Earth every minute. Pictured earlier this month in a two-image composite, lightning stems from communication antennas near the top of Volcán de Agua (Volcano of Water) in Guatemala.

<< Previous APOD This Day in APOD Next APOD >>

De58te
Science Officer
Posts: 268
Joined: Mon Sep 30, 2013 6:35 pm

Re: APOD: Lightning over the Volcano of Water (2019 Jul 29)

Post by De58te » Mon Jul 29, 2019 7:06 am

Maybe I'm wrong, but wouldn't a volcano of water be called a geyser?

User avatar
orin stepanek
Plutopian
Posts: 4925
Joined: Wed Jul 27, 2005 3:41 pm
Location: Nebraska

Re: APOD: Lightning over the Volcano of Water (2019 Jul 29)

Post by orin stepanek » Mon Jul 29, 2019 11:19 am

De58te wrote:
Mon Jul 29, 2019 7:06 am
Maybe I'm wrong, but wouldn't a volcano of water be called a geyser?

I believe it is the name of the Mountain!
Orin

Smile today; tomorrow's another day!

Scabulus
Asternaut
Posts: 8
Joined: Thu Feb 02, 2012 3:18 pm

Re: APOD: Lightning over the Volcano of Water (2019 Jul 29)

Post by Scabulus » Mon Jul 29, 2019 12:17 pm

What does any of this have to do with space? Is there a connection to the science of lightening that relates to planetary exploration? If so, then say so. If not, then post on Instagram or flickr.

User avatar
Chris Peterson
Abominable Snowman
Posts: 14452
Joined: Wed Jan 31, 2007 11:13 pm
Location: Guffey, Colorado, USA

Re: APOD: Lightning over the Volcano of Water (2019 Jul 29)

Post by Chris Peterson » Mon Jul 29, 2019 1:35 pm

Scabulus wrote:
Mon Jul 29, 2019 12:17 pm
What does any of this have to do with space? Is there a connection to the science of lightening that relates to planetary exploration? If so, then say so. If not, then post on Instagram or flickr.
Lightning is an atmospheric phenomenon, which has been observed to occur not just on Earth, but on other planets as well. We are fortunate to be able to observe it here, much more conveniently than on those other planets.
Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

BDanielMayfield
Don't bring me down
Posts: 2070
Joined: Thu Aug 02, 2012 11:24 am
AKA: Bruce
Location: East Idaho

Re: APOD: Lightning over the Volcano of Water (2019 Jul 29)

Post by BDanielMayfield » Mon Jul 29, 2019 2:00 pm

orin stepanek wrote:
Mon Jul 29, 2019 11:19 am
De58te wrote:
Mon Jul 29, 2019 7:06 am
Maybe I'm wrong, but wouldn't a volcano of water be called a geyser?

I believe it is the name of the Mountain!
Yes. The link to its name tells that is came to be called that after a lahar (volcanic mudslide) flooded a nearby city.
"Happy are the peaceable ... "

User avatar
hypatia
Asternaut
Posts: 1
Joined: Mon Jul 29, 2019 8:09 pm

Re: APOD: Lightning over the Volcano of Water (2019 Jul 29)

Post by hypatia » Mon Jul 29, 2019 8:15 pm

Can anybody tell me what the turquoise cylindrical object to the right of the volcano is (peeking out of the cloud)? Could it be a UFO?

🛸

BDanielMayfield
Don't bring me down
Posts: 2070
Joined: Thu Aug 02, 2012 11:24 am
AKA: Bruce
Location: East Idaho

Re: APOD: Lightning over the Volcano of Water (2019 Jul 29)

Post by BDanielMayfield » Mon Jul 29, 2019 9:53 pm

hypatia wrote:
Mon Jul 29, 2019 8:15 pm
Can anybody tell me what the turquoise cylindrical object to the right of the volcano is (peeking out of the cloud)? Could it be a UFO?

🛸
It is a gap underneath the cloud deck showing a small area of dusk or dawn sky. No need to suspect aliens. :wink:
"Happy are the peaceable ... "

User avatar
orin stepanek
Plutopian
Posts: 4925
Joined: Wed Jul 27, 2005 3:41 pm
Location: Nebraska

Re: APOD: Lightning over the Volcano of Water (2019 Jul 29)

Post by orin stepanek » Mon Jul 29, 2019 10:20 pm

Chris Peterson wrote:
Mon Jul 29, 2019 1:35 pm
Scabulus wrote:
Mon Jul 29, 2019 12:17 pm
What does any of this have to do with space? Is there a connection to the science of lightening that relates to planetary exploration? If so, then say so. If not, then post on Instagram or flickr.
Lightning is an atmospheric phenomenon, which has been observed to occur not just on Earth, but on other planets as well. We are fortunate to be able to observe it here, much more conveniently than on those other planets.
++ :yes: :thumb_up:
Orin

Smile today; tomorrow's another day!

User avatar
MarkBour
Subtle Signal
Posts: 915
Joined: Mon Aug 26, 2013 2:44 pm
Location: Illinois, USA

Re: APOD: Lightning over the Volcano of Water (2019 Jul 29)

Post by MarkBour » Tue Jul 30, 2019 1:51 am

What a fantastic image! That is an incredible, arborescent bolt. Also, there is a filament to the left of the main branches that does not visibly connect to the rest, and a visibly separate, but probably connected beautiful, long extension to the right. Zeus could not have done this without a few helpers! Who was it, I wonder, that managed to draw the wrath of several deities at once? I'm really glad I was not at the top of that volcano just then. But I'm glad that Sergio Montufar was able to capture this, and that the APOD editors brought it to us for our viewing pleasure.

I see a predictable "Not astronomical" complaint, so here's an astronomy question for those. What (and where and when) was the strongest electrostatic discharge event ever registered in our observations of the universe to date?
Mark Goldfain

User avatar
geckzilla
Ocular Digitator
Posts: 8973
Joined: Wed Sep 12, 2007 12:42 pm
Location: Modesto, CA

Re: APOD: Lightning over the Volcano of Water (2019 Jul 29)

Post by geckzilla » Tue Jul 30, 2019 3:17 am

Scabulus wrote:
Mon Jul 29, 2019 12:17 pm
What does any of this have to do with space? Is there a connection to the science of lightening that relates to planetary exploration? If so, then say so. If not, then post on Instagram or flickr.
The reason these get posted is because they attract more people from different backgrounds to APOD, who will then hopefully become subsequently attracted to astronomy, which is the purpose of APOD. So to you, this has no purpose, but to the APOD editor who put it up, that was the purpose. Maybe understanding it better will change your mind.
Just call me "geck" because "zilla" is like a last name.

User avatar
neufer
Vacationer at Tralfamadore
Posts: 16138
Joined: Mon Jan 21, 2008 1:57 pm
Location: Alexandria, Virginia

Re: APOD: Lightning over the Volcano of Water (2019 Jul 29)

Post by neufer » Tue Jul 30, 2019 3:40 am

geckzilla wrote:
Tue Jul 30, 2019 3:17 am
Scabulus wrote:
Mon Jul 29, 2019 12:17 pm

What does any of this have to do with space? Is there a connection to the science of lightening that relates to planetary exploration? If so, then say so. If not, then post on Instagram or flickr.
The reason these get posted is because they attract more people from different backgrounds to APOD, who will then hopefully become subsequently attracted to astronomy, which is the purpose of APOD. So to you, this has no purpose, but to the APOD editor who put it up, that was the purpose. Maybe understanding it better will change your mind.
https://en.wikipedia.org/wiki/Gateway_drug_theory wrote:
<<Gateway drug theory (alternatively, stepping-stone theory, escalation hypothesis, or progression hypothesis) is a comprehensive catchphrase for the theory that the use of a psychoactive drug can be coupled to an increased probability of the use of further drugs. Possible causes are biological alterations in the brain due to the earlier drug and similar attitudes of users across different drugs.>>
Art Neuendorffer