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jiahao1986
24-07-2013, 11:17 AM
* This is a VERY belated post of comet Pan-STARRS. But since most of the folks here saw this comet, hope these few footages from the northern hemisphere can bring back some good old memories : ) *

Comet Pan-STARRS (C/2011 L4), discovered in June 2011, was expected to become a bright naked eye comet in March 2013.

However, comets are like cats, they have tails, and they do precisely what they want (by David H. Levy). The comet failed to live up to people's expectations. Though its peak brightness reached as bright as mag +1, the tail development was disappointing. While normally a comet this bright should display a tail up to 10+ degree long, comet Pan-STARRS only developed a broad, low-surface-brightness dust tail with a length of 3 degrees after it passed perihelion and ventured to northern hemisphere's sky.

Though comet Pan-STARRS failed to become a naked eye spectacle, it did offer some fine photo opportunities for the northerners. One of the highlights of this comet's display, is probably its close encounter with the Andromeda Galaxy (M31) in early April, which was a beautiful sight both visually and photographically.

I took advantage of a home visit to China to follow comet Pan-STARRS at its best. This short time-lapse compilation includes footages from three clear nights within a period of 15 days. I came up with some graphics to demonstrate how the orbital positions of the comet changed with respect to the sun and inner solar system planets. From the graphics, it is obvious that the comet wasn't very well positioned and always remained rather distant from earth. Had the comet visited a few months earlier, we might have been greeted with great excitement instead of disappointment. Anyways, we still have comet ISON to look forward to later this year. Let's keep our fingers crossed : )

Please watch in HD and full screen for best quality.

http://vimeo.com/70826377

Jia Hao (Jack)
Facebook Page: https://www.facebook.com/Starscapes

pluto
24-07-2013, 11:23 AM
That's great, nice presentation :thumbsup:
I love the shot of the comet near M31.

IanP
24-07-2013, 11:35 AM
Beautiful..
I’ll second Hugh, the fragment with M31 is the cream on the crop !!!
:thumbsup:

iceman
24-07-2013, 12:00 PM
Wow!
Your timelapse presentation is among the best I've ever seen.

Incredible timelapse and great images too. What a scene over the wind farm.

colinmlegg
24-07-2013, 12:00 PM
Fantastic mate. Your graphics are second to none. :)

multiweb
24-07-2013, 12:19 PM
Great to watch. Very dynamic and beautiful post video work. :thumbsup::thumbsup::thumbsup:

h0ughy
24-07-2013, 12:48 PM
fantastic work well done

stardust steve
24-07-2013, 01:10 PM
very nice, a real pleasure to watch.
:thumbsup:

DavidU
24-07-2013, 01:37 PM
Awesome :thumbsup:

naskies
24-07-2013, 02:04 PM
What an amazing production :eyepop: :thumbsup:

Do you mind if I ask how you go about creating the graphics?

Ross G
24-07-2013, 09:16 PM
Beautiful and unique work Jack.

Love the view of M31 and the Comet!


Ross.

tilbrook@rbe.ne
24-07-2013, 09:44 PM
Bravo Jack!!!:clap:

That's a spell binding production!

Cheers,

Justin.

Octane
24-07-2013, 10:14 PM
I had a smile on my face the entire time I was watching that.

Superb. :)

H

alexch
25-07-2013, 12:08 AM
Loved it, great work!

Alex

jiahao1986
25-07-2013, 11:33 AM
Thank you all for your kind words : )

jiahao1986
25-07-2013, 11:37 AM
Thanks naskies. The graphics are created in Adobe After Effects.

What I did was first exporting the orbital simulations from SkySafari into JPEG images for the three dates, then using the JPEGs as template to draw the orbits and planets on three key frames in After Effects, and finally taking advantage of After Effects' camera function to animate the viewing perspective. Not really technical, just a bit time consuming : )

naskies
25-07-2013, 12:08 PM
Thanks for sharing... very cool! I have access to After Effects as part of my student subscription, but never got around to using it properly. Something to do during our cloudy weather. If you were to write a tutorial, I'm sure it would be popular... hint hint ;)

redomatic
25-07-2013, 05:00 PM
I must admit to watching that quite a few times - Great work.

RobF
25-07-2013, 07:16 PM
Stunning and inspiring. Thanks for sharing Jack. More! Keeping posting please.

Antu
26-07-2013, 11:44 AM
This is a fantastic presentation indeed ! :thumbsup:

jiahao1986
26-07-2013, 01:49 PM
Thanks guys for your compliments : )



Hi naskies,

After Effects is a very cool application and you certainly should pick it up before your student discount expires XD

Regarding writing up a tutorial for this, it took me 20+ hours on-and-off to finish this project, and making a tutorial will take equally long, if not longer I guess. I might try doing one when I got extra bandwidth : )

Astroman
26-07-2013, 08:48 PM
Speechless, amazing video, my hats off to you, great presentation and beautiful imagery.

Irish stargazer
26-07-2013, 10:06 PM
Fantastic work! :thumbsup:

jiahao1986
28-07-2013, 01:25 PM
Thanks guys : )