slideshow 1 slideshow 2 slideshow 3 slideshow 4 slideshow 5 slideshow 6

You are here

Observing Plots

Here we provide the plots showing the heliocentric and geocentric distances, rh and Delta (solid black line and dashed black line, respectively), as well as the solar elongations (blue dashed line) for each comet. The file names are TGK_ephem.pdf, HMP_ephem.pdf, and Wirtanen_ephem.pdf.

We also provide plots showing the "up times" of the comets for different latitudes (at 5 deg intervals and "m" in the file name stands for minus latitudes and "p" stands for positive latitudes). The solid black and blue dashed lines are times that the comet is above 30 deg and 15 deg, respectively.  The red and orange dot-dash lines are the total and nuclear magnitudes, as calculated from the coefficients given in JPL Horizons (note that other systems will predict different brightnesses and therefore these magnitudes should be considered as ROUGH estimates; in particular, we like to refer to Seiichi Yoshida's website www.aerith.net and his predictions). An observer should choose the closest latitude to the relevant observatory in order estimate the "up time" for a given comet.

 

Observing Plots for Comet 41P/TGK

TGK_distances_solarelongation.pdf

TGK_timeup_m05.pdf

TGK_timeup_m10.pdf

TGK_timeup_m15.pdf

TGK_timeup_m20.pdf

TGK_timeup_m25.pdf

TGK_timeup_m30.pdf

TGK_timeup_m35.pdf

TGK_timeup_m40.pdf

TGK_timeup_m45.pdf

TGK_timeup_m50.pdf

TGK_timeup_p00.pdf

TGK_timeup_p05.pdf

TGK_timeup_p10.pdf

TGK_timeup_p15.pdf

TGK_timeup_p20.pdf

TGK_timeup_p25.pdf

TGK_timeup_p30.pdf

TGK_timeup_p35.pdf

TGK_timeup_p40.pdf

TGK_timeup_p45.pdf

TGK_timeup_p50.pdf

 

Observing Plots for Comet 45P/HMP 

HMP_distances_solarelongation.pdf

HMP_timeup_m05.pdf 

HMP_timeup_m10.pdf

HMP_timeup_m15.pdf 

HMP_timeup_m20.pdf

HMP_timeup_m25.pdf 

HMP_timeup_m30.pdf

HMP_timeup_m35.pdf

HMP_timeup_m40.pdf 

HMP_timeup_m45.pdf 

HMP_timeup_m50.pdf

HMP_timeup_p00.pdf

HMP_timeup_p05.pdf

HMP_timeup_p10.pdf 

HMP_timeup_p15.pdf

HMP_timeup_p20.pdf 

HMP_timeup_p25.pdf

HMP_timeup_p30.pdf 

HMP_timeup_p35.pdf

HMP_timeup_p40.pdf

HMP_timeup_p45.pdf

HMP_timeup_p50.pdf

 

Observing Plots for Comet 46P/Wirtanen

Wirtanen_distances_solarelongation.pdf

Wirtanen_timeup_2018_m05.pdf

Wirtanen_timeup_2018_m10.pdf

Wirtanen_timeup_2018_m15.pdf

Wirtanen_timeup_2018_m20.pdf

Wirtanen_timeup_2018_m25.pdf

Wirtanen_timeup_2018_m30.pdf

Wirtanen_timeup_2018_m35.pdf

Wirtanen_timeup_2018_m40.pdf

Wirtanen_timeup_2018_m45.pdf

Wirtanen_timeup_2018_m50.pdf

Wirtanen_timeup_2018_p00.pdf

Wirtanen_timeup_2018_p05.pdf

Wirtanen_timeup_2018_p10.pdf

Wirtanen_timeup_2018_p15.pdf

Wirtanen_timeup_2018_p20.pdf

Wirtanen_timeup_2018_p25.pdf

Wirtanen_timeup_2018_p30.pdf

Wirtanen_timeup_2018_p35.pdf

Wirtanen_timeup_2018_p40.pdf

Wirtanen_timeup_2018_p45.pdf

Wirtanen_timeup_2018_p50.pdf

Wirtanen_timeup_2019_m05.pdf

Wirtanen_timeup_2019_m10.pdf

Wirtanen_timeup_2019_m15.pdf

Wirtanen_timeup_2019_m20.pdf

Wirtanen_timeup_2019_m25.pdf

Wirtanen_timeup_2019_m30.pdf

Wirtanen_timeup_2019_m35.pdf

Wirtanen_timeup_2019_m40.pdf

Wirtanen_timeup_2019_m45.pdf

Wirtanen_timeup_2019_m50.pdf

Wirtanen_timeup_2019_p00.pdf

Wirtanen_timeup_2019_p05.pdf

Wirtanen_timeup_2019_p10.pdf

Wirtanen_timeup_2019_p15.pdf

Wirtanen_timeup_2019_p20.pdf

Wirtanen_timeup_2019_p25.pdf

Wirtanen_timeup_2019_p30.pdf

Wirtanen_timeup_2019_p35.pdf

Wirtanen_timeup_2019_p40.pdf

Wirtanen_timeup_2019_p45.pdf

Wirtanen_timeup_2019_p50.pdf

 

Go back to previous page 

 

PSI, a Nonprofit Corporation 501(c)(3), and an Equal Opportunity/M/F/Vet/Disabled/Affirmative Action Employer.
Corporate Headquarters: 1700 East Fort Lowell, Suite 106 * Tucson, AZ 85719-2395 * 520-622-6300 * FAX: 520-622-8060
Copyright © 2017 . All Rights Reserved.