Comets and Animations from
the Cordell-Lorenz Observatory


15x10 second stacks taken at 4 minute intervals. 
Comet Lovejoy C/2017 E4
No coma, no nucleus, all tail.
10.6 arc min long at PA 341
Image by D. T. Durig
Cordell-Lorenz observatory
Sewanee TN USA
ddurig@sewanee.edu


15x10 second stacks taken at 4 minute intervals.
Comet Lovejoy C/2017 E4
No coma, no nucleus, all tail.
10.6 arc min long at PA 341
Image by D. T. Durig
Cordell-Lorenz observatory
Sewanee TN USA
ddurig@sewanee.edu


Image uploaded on: 2017-04-20 05:45:39
Comet Lovejoy C/2017 E4. 
2017 04 05 ut ~095200.
Stack of 70 x 10 sec.
Short break in the middle from passing clouds.
20x30 arc min frame so tail is longer than 30 arc min and coma is 4.5 arc min wide.
Dr. D. T. Durig
Cordell-Lorenz observatory
Sewanee TN 37383 USA


Comet Lovejoy C/2017 E4.
2017 04 05 ut ~095200.
Stack of 70 x 10 sec.
Short break in the middle from passing clouds.
20x30 arc min frame so tail is longer than 30 arc min and coma is 4.5 arc min wide.
Dr. D. T. Durig
Cordell-Lorenz observatory
Sewanee TN 37383 USA


Image uploaded on: 2017-04-05 06:35:21
NEOCP/PCCP object gb00099
03/04/17  ~10:45-11:05 UT
15x10 sec stacks at 5 min intervals. 
Image by Dr. D. T. Durig
Cordell-Lorenz Observatory
OBS COD 850
Sewanee, TN 37383
ddurig@sewanee.edu


NEOCP/PCCP object gb00099
03/04/17 ~10:45-11:05 UT
15x10 sec stacks at 5 min intervals.
Image by Dr. D. T. Durig
Cordell-Lorenz Observatory
OBS COD 850
Sewanee, TN 37383
ddurig@sewanee.edu


Image uploaded on: 2017-03-04 06:05:14
NEOCP/PCCP object gb00099 from 3/3/17 about ~11 UT. Images are 15x10 sec stacks spaced about 5 minutes apart. Images by Dr. D. T. Durig,
Cordell-Lorenz Observatory,
OBS COD 850,
Sewanee, TN, USA,
ddurig@sewanee.edu


NEOCP/PCCP object gb00099 from 3/3/17 about ~11 UT. Images are 15x10 sec stacks spaced about 5 minutes apart. Images by Dr. D. T. Durig,
Cordell-Lorenz Observatory,
OBS COD 850,
Sewanee, TN, USA,
ddurig@sewanee.edu


Image uploaded on: 2017-03-03 06:08:53
Animation of 20x2min stacked exposres of LM03wSk from NEOCP/PCCP. Object is diffuse in single 2 min exposres and shows slight assymentry and short hinbt of a tail at PA 270.


Animation of 20x2min stacked exposres of LM03wSk from NEOCP/PCCP. Object is diffuse in single 2 min exposres and shows slight assymentry and short hinbt of a tail at PA 270.





Image uploaded on: 2015-12-20 05:58:18
Same image with pixels inverted to show details better.


Same image with pixels inverted to show details better.


Image uploaded on: 2015-12-08 02:43:59
Close-up of I049742 from Potential Comet Confirmation Page at MPC showing short tail 17 arc sec long at Position Angle 303. Object has a FWHM of about 1 arc sec greater than stars with a similar magnitude. Information the same as previous image.


Close-up of I049742 from Potential Comet Confirmation Page at MPC showing short tail 17 arc sec long at Position Angle 303. Object has a FWHM of about 1 arc sec greater than stars with a similar magnitude. Information the same as previous image.


Image uploaded on: 2015-12-08 02:36:01
I049742 from Potential Comet Confirmation Page at the Minor Planet Center. Each frame is a stack of 20x2 min images stacked on the motion vector of this new object. In the fifth frame it is clear of background stars and clearly shows a teardrop shaped coma and short tail about 17 arc sec long oriented at about PA 303. Images by D. T. Durig and P. S. Hearn at the Cordell-Lorenz Observatory, The University of the South, Sewanee, Tennessee, USA. OBS CODE 850.
Images may be used if photo-credit is given and you notify me of their use at ddurig@sewanee.edu


I049742 from Potential Comet Confirmation Page at the Minor Planet Center. Each frame is a stack of 20x2 min images stacked on the motion vector of this new object. In the fifth frame it is clear of background stars and clearly shows a teardrop shaped coma and short tail about 17 arc sec long oriented at about PA 303. Images by D. T. Durig and P. S. Hearn at the Cordell-Lorenz Observatory, The University of the South, Sewanee, Tennessee, USA. OBS CODE 850.
Images may be used if photo-credit is given and you notify me of their use at ddurig@sewanee.edu


Image uploaded on: 2015-12-08 02:27:11
Comet Catalina C/2013 US10 at a wider FOV, about 20x30 arc minutes. Animated frames are stacks of 15x30 second exposures tracked on the motion of the comet. Image by Dr. Douglas T. Durig
Cordell-Lorenz Observatory
The University of the South
Sewanee, Tennessee, USA
Animation may be used if photocredit is given and you notify me at ddurig@sewanee.edu


Comet Catalina C/2013 US10 at a wider FOV, about 20x30 arc minutes. Animated frames are stacks of 15x30 second exposures tracked on the motion of the comet. Image by Dr. Douglas T. Durig
Cordell-Lorenz Observatory
The University of the South
Sewanee, Tennessee, USA
Animation may be used if photocredit is given and you notify me at ddurig@sewanee.edu


Image uploaded on: 2015-12-04 06:16:19
Animation of 20x 30 second images of Comet Catalina C/2013 US10 taken 12/04/2015. Image shows spectacular structure in teh gas tail. Image may be used with photo credit:
Dr. Douglas T. Durig
Cordell-Lorenz Observatory
Sewanee, Tennessee, USA
Obs Code 850


Animation of 20x 30 second images of Comet Catalina C/2013 US10 taken 12/04/2015. Image shows spectacular structure in teh gas tail. Image may be used with photo credit:
Dr. Douglas T. Durig
Cordell-Lorenz Observatory
Sewanee, Tennessee, USA
Obs Code 850


Image uploaded on: 2015-12-04 05:52:22

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