snowNH Posted September 27, 2011 Share Posted September 27, 2011 The Bz (the N-S component of the Interplanetary field) has turned north which will lead to a further decline in activity. However, the Solar wind speed remains high at over 600 km/sec so we can't rule out a substorm or reversal of the polarity just yet. Steve Interesting. The values on the 15 min Kp chart seem to be climbing over the past hour after a bottom out of around 3. Maybe something to watch...Like you said to, the solar wind remains constant at around 650 km/sec Link to comment Share on other sites More sharing options...
snowNH Posted September 27, 2011 Share Posted September 27, 2011 A Nice rise from 3 to 4.3 over the past hour or so. Link to comment Share on other sites More sharing options...
earthlight Posted September 27, 2011 Share Posted September 27, 2011 Link to comment Share on other sites More sharing options...
dendrite Posted September 27, 2011 Share Posted September 27, 2011 I see nothing here...would've been a great night with clear skies and a new moon. Link to comment Share on other sites More sharing options...
snowNH Posted September 27, 2011 Share Posted September 27, 2011 New Kp back up to a 7. Link to comment Share on other sites More sharing options...
turtlehurricane Posted September 27, 2011 Share Posted September 27, 2011 Gonna head out and look... Link to comment Share on other sites More sharing options...
wxmeddler Posted September 27, 2011 Share Posted September 27, 2011 ISS got a great view while over the Southern Indian Ocean. http://www.nasa.gov/topics/shuttle_station/features/20110917-aurora.html Link to comment Share on other sites More sharing options...
QVectorman Posted September 27, 2011 Share Posted September 27, 2011 ISS got a great view while over the Southern Indian Ocean. http://www.nasa.gov/...917-aurora.html ^^^that was captured 9 days ago Link to comment Share on other sites More sharing options...
turtlehurricane Posted September 27, 2011 Share Posted September 27, 2011 Maybe a faint green glow on the northern horizon? Faint, but it seemed to be pulsating. Link to comment Share on other sites More sharing options...
j24vt Posted September 27, 2011 Share Posted September 27, 2011 Nothing here Link to comment Share on other sites More sharing options...
snowNH Posted September 27, 2011 Share Posted September 27, 2011 Gonna head out and look... Where are you located? Link to comment Share on other sites More sharing options...
aslkahuna Posted September 27, 2011 Author Share Posted September 27, 2011 Visual aurora seen in ND/SD/MI/NY/ME so far however, most reports indicate a relatively faint display. The best chances for a bright display will occur if we get a substorm in the midnight to dawn sector. Steve Link to comment Share on other sites More sharing options...
hckyplayer8 Posted September 27, 2011 Share Posted September 27, 2011 Nothing here in SC PA. Will be pretty disappointed if we don't cash in at this chance as cloud cover is basically null right now. Link to comment Share on other sites More sharing options...
aslkahuna Posted September 27, 2011 Author Share Posted September 27, 2011 Nothing here in SC PA. Will be pretty disappointed if we don't cash in at this chance as cloud cover is basically null right now. At the moment, I wouldn't give you much of a chance unless we get a good substorm after midnight. Steve Link to comment Share on other sites More sharing options...
hckyplayer8 Posted September 27, 2011 Share Posted September 27, 2011 At the moment, I wouldn't give you much of a chance unless we get a good substorm after midnight. Steve Thanks for the reply. How accurate is this image that was posted earlier? I'm pretty close to the Kp=7 line and saw the activity was inching back up. Link to comment Share on other sites More sharing options...
OSUmetstud Posted September 27, 2011 Share Posted September 27, 2011 Link to comment Share on other sites More sharing options...
OSUmetstud Posted September 27, 2011 Share Posted September 27, 2011 Thanks for the reply. How accurate is this image that was posted earlier? I'm pretty close to the Kp=7 line and saw the activity was inching back up. that map is old...the geomagnetic poll has moved so that the Geo storm has to be stronger to get the aurora farther south into North America. http://www.swpc.noaa.gov/Aurora/index.html#kpmaps Link to comment Share on other sites More sharing options...
eekuasepinniW Posted September 27, 2011 Share Posted September 27, 2011 sunspot 1302 is in a prime location to slap us pretty hard if it chooses to fire off a nice x-flare over the next day or two. Link to comment Share on other sites More sharing options...
j24vt Posted September 27, 2011 Share Posted September 27, 2011 Are there factors other than kP that affect the visibility of of the aurora? Last night was clear with no moon and I was outside looking when the Kp spiked to 7 and didn't see anything just north of Stowe, VT. Link to comment Share on other sites More sharing options...
ApacheTrout Posted September 27, 2011 Share Posted September 27, 2011 I was in a plane over the Utica, NY area last night around 9:45 and could clearly see the aurora out the window. It was mostly stationary pillars of green and yellow, so I didn't see any waves or ripples of light. But it was still quite beautiful. Link to comment Share on other sites More sharing options...
bluewave Posted September 27, 2011 Share Posted September 27, 2011 The aurora was visible in parts of New York last night and other northern areas. http://spaceweather...._1317094437.jpg http://spaceweather.com/ Link to comment Share on other sites More sharing options...
eekuasepinniW Posted September 27, 2011 Share Posted September 27, 2011 The aurora was visible in parts of New York last night and other northern areas. http://spaceweather...._1317094437.jpg http://spaceweather.com/ not sure if visible is the correct word to describe it if a 30 second exposure at iso 1600 was needed to produce those faint glows on an image. Link to comment Share on other sites More sharing options...
Bob Chill Posted September 27, 2011 Share Posted September 27, 2011 I spent a week @ Lake of the Woods (just over the Canadian border from MN) in the mid 90's. My fishing buddy and I randomly decided to take the truck out on some trails around 11pm. We parked on a smooth granite rock and were looking for shooting stars because the night sky was crystal clear. Started to see what looked like green spotlights dancing back and forth. I had no idea what I was looking at first. The entire sky filled with green and yellow fingers of light and they danced back and forth for about an hour. It was simply an amazing experience. Seeing the northern lights should be on everyones bucket list. I remember that night like it was yesterday. I'm going to make it a point to see them again before I kick the bucket. Link to comment Share on other sites More sharing options...
bluewave Posted September 27, 2011 Share Posted September 27, 2011 not sure if visible is the correct word to describe it if a 30 second exposure at iso 1600 was needed to produce those faint glows on an image. The previous poster said he saw it in the same area from a plane. Link to comment Share on other sites More sharing options...
eekuasepinniW Posted September 27, 2011 Share Posted September 27, 2011 The previous poster said he saw it in the same area from a plane. I'm sure... I can't think of a better place to view it. Pretty huge difference from the ground to 35,000 feet though. You can see more than 200 miles further north from that altitude. Link to comment Share on other sites More sharing options...
snowNH Posted September 27, 2011 Share Posted September 27, 2011 sunspot 1302 is in a prime location to slap us pretty hard if it chooses to fire off a nice x-flare over the next day or two. There's supposed to be cloud cover in NE the rest of the week tho right? Link to comment Share on other sites More sharing options...
bluewave Posted September 27, 2011 Share Posted September 27, 2011 I'm sure... I can't think of a better place to view it. Pretty huge difference from the ground to 35,000 feet though. You can see more than 200 miles further north from that altitude. It sounds like it was just visible enough from the ground for the guy to set up the 30 second exposure. The other states seem to have had better views even with the naked eye. A very faint aurora appeared around 10 pm as the sky started to cloud over. The display was easiest to see when beams formed, giving a edge with some contrast. Almost all of the activity was centered on the light dome of Geneva, NY, about 15 miles to the north. Canon D1000, 30 second exposure iso 1600. Link to comment Share on other sites More sharing options...
aslkahuna Posted September 28, 2011 Author Share Posted September 28, 2011 Important to note that the maps give the location of the southern edge of the auroral oval for a given K value (or the northern edge for the Aurora Australis). Since during the big K 8 and 9 red auroral storms the top of the aurora may be as much as 1000 miles up, the aurora will be visible much further south (north)though lower in the sky. Then there are the Global aurorae seen all of the way down in the deep Tropics or even to the Equator which occur with the monster Gemag storms (such as 1859 and 1989 and briefly in 2003).. These are in a class by themselves and the normal K value relationship does not work. Steve Link to comment Share on other sites More sharing options...
Stebo Posted September 29, 2011 Share Posted September 29, 2011 Came across this on Facebook, from Anchorage's NBC page. Probably one of the best pictures of the Aurora Borealis I have ever seen. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.