Skip to content
Public Universe
Comet

PANSTARRS

Add to an observing list or journal →

C/2017 S3 (PANSTARRS)

Orbital elements

Semi-major axis
-2,673.668 AU
Eccentricity
1.0001
Inclination
99.04°
Perihelion
0.208 AU
Longitude of ascending node
171.04°
Argument of periapsis
255.89°
Epoch · J2000
JD 2458346.44837 (perihelion)
Orbit class · HYP
Hyperbolic comet
Earth MOID · 114.3 LD
0.2937 AU
Tisserand (Jupiter)
-0.089

Orbit quality

Observations used
986
Data arc
351 days
First observed
17 August 2017
Last observed
3 August 2018
Residual RMS
0.6 ″
Solution · Otto Matic
16 April 2021

Visual & observation

Absolute magnitude (H)
13.2
Total magnitude M₁ · K₁ 8.3
13.2

Discovery & classification

Also known as 2017 S3

Named

Sources