P/2023 S1 (PANSTARRS)
Type: Periodic
Perihelion date: 24 February 2025
Perihelion distance (q): 2.6
Aphelion distance (Q) : 5.1
Period (years): 7.5
Eccentricity (e): 0.32
Inclination (i): 9.2
JPL orbit diagram
COBS lightcurve
Atlas
PanSTARRS 2 discovered a 20th magnitude comet in images taken with the 1.8 m
Ritchey-Chretien on 20 September 2023. There were pre-discovery images from
earlier in the month.
The preliminary orbit suggests that the comet passed only 0.0017au from Jupiter
around 8 June 2021. Prior to this encounter the comet was in a more distant orbit
with perihelion at 5.0 au and a period of 26 years.
Observations (VEMag = visual equivalent magnitude)
Date
10x10 mag
Error
VEmag
Coma '
17-Oct-23
20.0
0.4
24-Oct-23
18.9
0.4
13-Nov-23
18.8
0.4
09-Dec-23
19.4
0.4
17-Dec-23
19.2
0.4
29-Dec-23
18.7
0.4
09-Jan-24
18.8
0.4
27-Jan-24
19.0
0.4
03-Feb-24
18.8
0.4
05-Nov-24
17.5
0.4
13-Nov-24
17.5
0.4
29-Nov-24
17.4
0.4
08-Dec-24
17.3
0.4
25-Dec-24
17.1
0.4
04-Jan-25
16.1
0.8