Robert Lunsford of the +American Meteor Society recently posted details on a possible meteor shower from Comet ISON passing near the earth's orbit on its way towards its rendezvous with the sun. I had heard that the earth could reach the debris in the January 12 -15 time frame, so I went out early on 3 mornings to see what I could pick up. I've condensed hundreds of photos from those nights into the HD video below.
As illustrated in a diagram on Robert's post here, the incoming meteors were expected to appear to radiate out from a point in the constellation Leo:
Meteor Activity from Comet ISON?
http://www.amsmeteors.org/2014/01/meteor-activity-from-comet-ison/
Meteor trails look longer away form a meteor shower's radiant point though, so the first two nights I shot north to minimize star movement and northeast in case the movement of the earth through space caused extra collisions with comet dust to the east. On the third night I trained my 24mm lens on Leo and I used a sky-tracking mount to follow the constellation while shooting almost continuously for hours. I did capture a bright and colorful meteor trail, but its length and direction, along with a second meteor captures 10 minutes earlier, implied that its radiant point was across the sky near the Big Dipper, so those were more likely to be late arrivals from the Quadrantid meteor shower which peaked on January 3.
So did I catch any meteors from ISON? I swear that I can see little flashes in my original images as they were getting down-converted in resolution to video, but it's hard to peer into 22 megapixel images to detect the smallest details on a 2 megapixel monitor. Even my video gets compressed for re-broadcast from video hosting sites, so it's even harder to show others what I captured. The question might not be definitively answered until I re-examine the results some time from now when I can re-process the images in "4K" video format and can view the 4X higher resolution video on a 4K monitor (4096 or 3840 resolution).
The increasing brightness of the moon and its later rise times started interfering with meteor viewing on the third night, so I decided not to shoot on the fourth night. I've shot dozens of meteor showers in the past, but this time I was particularly focused on trying to capture the faintest of meteors, so it was good to "push the envelope" and develop new insight and techniques which can fine tune my meteor shower shooting in the future.
Next I'll write a post on my +Blogger blog showing a photo of that large and colorful likely Quadrantid meteor next to Leo: www.activesole.blogspot.com
To see more of my time-lapse videos from more major meteor showers, drop by my +YouTube channel: http://www.youtube.com/user/JeffSullivanPhoto
#cometison #astronomy #astrophotography #timelapse #science
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espectacular!!
Very nice! Thanks for sharing!
Fantastic !!
Amazing!!
+Jeff Sullivan what did you shoot with and at what settings?
very gorgeous
omg Jeff that was so awesome thank you so very much i totally missed them so again thank you sincerely trish
thanks for the stellar treat
+Eric DiFebbo Exposure settings varied considerably based on shooting conditions such as moonlight, direction shot (localized light pollution) and towards the end of each shot, oncoming twilight.
Clip 1 N/NE 20mm: 20 seconds f/2.8 ISO 6400
Clip 2 N 24mm: 15 seconds f/1.8 ISO 2500
Clip 3 tracking Leo 24mm: 15 seconds f/4 ISO 1250
Clip 4 E 14mm: 15 seconds f/4 ISO 3200
All were captured on a Canon 5D Mark III except #4, which was on a Canon 5D Mark II.
The moon varies in brightness from night to night, so other than completely dark nights in locations with no light pollution, there's not much which can be transferred from one shot to the next. You need to be able to quickly determine the correct exposure on that night, in that location, shooting in that specific direction, with the specific lens and camera model/sensor you're using.
I've spent probably 10 nights shooting Comet C/2013 R1 Lovejoy simply to test different camera/lens combinations, not only for obvious considerations like noise/sharpness but also which lenses have coatings to reduce chromatic aberration and have the least distortion at their widest apertures. I'm also getting up to speed on tracking mounts, yet another variable to be mastered.
Back in 2010 after pursuing landscape photography full time for 5 years I was surprised at how much there still was to learn. Night photography and astrophotography are even more esoteric pursuits and are even more difficult to master, partly because the conditions change every single night and you can't generalize as much or shoot particular subjects under specific conditions all that often, but also because different types of subjects have very different considerations.
thanks for your sharing.