C/2019 B3 (PANSTARRS) |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
PA |
Nearest approach | 3 May 2020 | 18.1 | 7.042 AU | 6.528 AU | 10h54m | -67°17' | 116.9° | 7.3° | 65° |
Perihelion | 19 Jan 2021 | 18.1 | 6.830 AU | 7.172 AU | 16h32m | -83°25' | 65.9° | 7.6° | 236° |
Today | 12 Jul 2025 | 21.7 | 12.157 AU | 11.746 AU | 00h11m | -12°16' | 111.6° | 4.5° | 251° |
C/2019 B3 (PANSTARRS)- 2025-07-12
astro.vanbuitenen.nl
The interactive orbit chart above shows the comet's path through the solar system and its position at the given date.
Green and blue lines are shown perpendicular to the ecliptic plane: Green if the path is above the ecliptic plane, blue if it is below.
(Left-click and drag to rotate the view; Right-click and drag to move the view; Use scroll wheel to zoom in our out.)
The orbital elements of C/2019 B3 (PANSTARRS) are:
e (Eccentricity) : 0.9980870
q (Perihelion distance) : 6.8301370
i (Inclination) : 66.60670
Ω (Longitude of ascending node) : 358.40150
ω (Argument of perihelion) : 263.99940
L (Longitude of perihelion) : 73.57288
B (Latitude of perihelion) : -65.89131
T (Time of perihelion passage) : 2459234.05060
P (Orbital period in years) : 213339.69
Epoch : 2025 Jul 11
Reference : MPEC 2024-JU4
Classification(s): : Nearly isotropic; Returning (a < 10000 AU); External (P > 200 years)
The light curve chart below shows the estimated development of the comet's magnitude. Blue and black dots are visual and photometric CCD observations respectively from COBS or the MPC.
The light curve is based on the absolute magnitude and slope parameter as calculated from an MPEC, or the latest values provided by the minor planet center. (5.50 + 5 log[∆] + 10.00 log[r]).
The all-sky chart below shows the path of the comet over the same period as the light curve. The comet's current position is marked yellow.
The following chart shows the short-term path of the comet in a field of view that is optimized for (~10x50) binoculars and finderscopes.
A more printer-friendly version of the same chart can be found further down this page as well.
The following chart shows the current location of the comet in a smaller, upside-down telescopic field of view.
A printable version of the short-term path of the comet in a field of view that is optimized for (~10x50) binoculars and finderscopes.
Ephemerides:
Date Time RA (2000) DEC (2000) delta radius elong phase PA magn
2025-07-12 00:00 UT 00 11 33.0 -12 16 28 11.749 12.156 111.3 4.5 251 21.7
2025-07-12 06:10 UT 00 11 31.5 -12 16 31 11.746 12.157 111.6 4.5 251 21.7
2025-07-13 00:00 UT 00 11 27.1 -12 16 38 11.738 12.160 112.3 4.4 251 21.7
2025-07-14 00:00 UT 00 11 20.8 -12 16 50 11.728 12.165 113.2 4.4 251 21.7
2025-07-15 00:00 UT 00 11 14.2 -12 17 04 11.717 12.170 114.2 4.4 252 21.7
2025-07-16 00:00 UT 00 11 07.3 -12 17 18 11.707 12.174 115.2 4.3 252 21.7
2025-07-17 00:00 UT 00 11 00.1 -12 17 34 11.697 12.179 116.1 4.3 252 21.7
2025-07-18 00:00 UT 00 10 52.6 -12 17 52 11.687 12.184 117.1 4.3 252 21.7
2025-07-19 00:00 UT 00 10 44.8 -12 18 11 11.677 12.188 118.0 4.2 253 21.7
2025-07-20 00:00 UT 00 10 36.6 -12 18 31 11.668 12.193 119.0 4.2 253 21.7
2025-07-21 00:00 UT 00 10 28.2 -12 18 53 11.658 12.197 119.9 4.1 253 21.7
2025-07-22 00:00 UT 00 10 19.5 -12 19 16 11.649 12.202 120.9 4.1 254 21.7
Terminology:
delta: distance between comet and earth in AU
radius: distance between comet and sun in AU
magn: magnitude (brightness) estimate
ra: right ascension in hours (24h = 360deg)
dec: declination in degrees
elong: elongation in degrees (angle sun-earth-comet)
phase: phase angle in degrees (angle sun-comet-earth)
AU: Astronomical Unit (mean distance between earth and sun: 149597870.7 km
Orbital elements usually provided by the MPC (Minor Planet Center).
Observations contributed by observers worldwide, via COBS (Comet Observation Database) or the MPC (Minor Planet Center)
Calculations by a modified version of AAPlus, a C# implementation of the AA+ project by PJ Naughter from the algorithms presented in the book "Astronomical Algorithms" by Jean Meeus.
NGC2000 dso catalog and star labels from VizieR as provided by the Strasbourg astronomical Data Center.
Tycho2 catalog from the ESO archive.