Plots of Absolute Nuclear Magnitude (V(1,1,0))

vs

heliocentric distance (r)

 

Following we present plots of  the absolute nuclear magnitude (V(1,1,0)) vs the heliocentric distance (r) for the 138 comets for which data is available. The vertical lines indicate the perihelion and aphelion distances. The horizontal line corresponds to the adopted nuclear magnitude. Different symbols are assigned to selected observers and observational categories. The observations are classified using the following groups:

• CCD - observations taken by professional astronomers using medium- and large-sized telescopes (1.5 m aperture or bigger) with CCDs.
• Roemer - E. Roemer and her collaborators' reports of nuclear magnitudes.
• Scotti nuclear - Observations by J. Scotti reported as nuclear magnitudes.
• Scotti total - J. Scotti's reports of total magnitudes, including those at $r \le 3$ AU.
• General - Nuclear reports by any other observer not included in the previous groups; most of the observers are amateur astronomers.
• Total - Reports of total magnitudes taken at r > 3 AU by any observer except J. Scotti.

 

Table 2: Symbols used for data points in the Appendix B

Observer	symbol
	(pre - empty ; post - full)
CCD	pentagon -
Roemer	triangle -
Scotti (nuclear)	diamond -
Scotti (total)	square -
General	circle -
Total r > 3 AU	pre - cross -
	post - chicken-foot -

 

 Different forms to present the plots

• Comets sorted by name in alphabetical order
• Comets sorted by MPC number
• Pages including many comets
• In aplhabetical order
• In numerical order

 

2000-03-07