365P/PANSTARRS (0365P)
TRY AGAIN 2028
Type: Periodic
Perihelion date: 11 October 2023
Perihelion distance (q): 1.3
Aphelion distance (Q) : 5.0
Period (years): 5.7
Eccentricity (e): 0.58
Inclination (i): 9.8
JPL orbit diagram
COBS lightcurve
2000 XO8 = P/2011 WG113 = 2017 U6 = 365P
An asteroid discovered by LINEAR on 1 December 2000 was found to show a coma
and tail in images taken by the Deep Ecliptic Patrol of the Southern Sky (DEEP-
South) team, in CCD images taken with the Korea Microlensing Telescope Network
(KMTNet) 1.6-m f/3.22 telescope at Siding Spring Observatory (SSO) in Australia in
October and the same type of telescope installed at Cerro Tololo Interamerican
Observatory (CTIO) in Chile in November. The comet was at perihelion at 1.5 au in
October 2017 and was previously classed as an Outer Main-belt asteroid.
It has a Jupiter MOID of 0.016 au, and will pass 0.23 au from the planet in 2042. This
will be followed by an approach to the Earth at 0.33 au in 2051.
An apparently asteroidal object of 21st magnitude was discovered in PanSTARRS
images taken with the 1.8m Ritchey-Chretien on 24 November 2011 and also
observed on 2 December 2011. This was designated 2011 WG113. The object was
re-discovered by PanSTARRS on 21 October 2017, still appearing as asteroidal.
Subsequent observations in February 2018 by the Catalina and Mt Lemmon
telescopes showed a diffuse coma and tail, so it was designated as 2017 U6.
Observations (VEMag = visual equivalent magnitude)
Date
10x10 mag
Error
VEmag
Coma '
08-Apr-18
17.41
0.01
16.7
0.4
17-Apr-18
17.81
0.05
16.5
0.4
03-May-18
18.45
0.07
18.2
0.2