C/2018 R3 (Lemmon)
DEPARTED
Type: Periodic
Perihelion date: 7 June 2019
Perihelion distance (q): 1.3
Aphelion distance (Q) : 3,939
Period (years): 87,446
Eccentricity (e): 1.00
Inclination (i): 69.7
JPL orbit diagram
COBS lightcurve
An apparently asteroidal object of 19th magnitude was found in Mt Lemmon Survey
images taken with the 1.5m reflector on 7 September 2018. It was placed on the
PCCP as ZRBBF83 and follow up observations by astrometrists showed that it was
slightly diffuse and elongated. With a preliminary orbit, Gareth Williams was then able
to find pre-discovery PanSTARRS images from August 2018.
Observations (VEMag = visual equivalent magnitude)
Date
10x10 mag
Error
VEmag
Coma '
10-Oct-18
19.77
0.04
19.6
0.2
01-Dec-19
19.43
0.13
18.9
0.2