C/2019 LB7 (Kleyna) |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
PA |
Nearest approach | 3 Dec 2018 | 22.7 | 2.759 AU | 1.829 AU | 04h03m | -00°25' | 156.1° | 8.3° | 19° |
Perihelion | 26 Mar 2019 | 23.7 | 2.495 AU | 3.440 AU | 01h22m | +03°51' | 15.8° | 6.2° | 84° |
Today | 19 Apr 2024 | 33.9 | 13.637 AU | 12.944 AU | 17h03m | -07°16' | 131.9° | 3.1° | 261° |
C/2019 LB7 (Kleyna)- 2024-04-19
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 LB7 (Kleyna) are:
e (Eccentricity) : 0.9284140
q (Perihelion distance) : 2.4952480
i (Inclination) : 164.28840
Ω (Longitude of ascending node) : 3.92140
ω (Argument of perihelion) : 336.67200
L (Longitude of perihelion) : 26.46644
B (Latitude of perihelion) : -6.15586
T (Time of perihelion passage) : 2458569.03650
P (Orbital period in years) : 205.79
Epoch : 2024 Apr 18
Reference : MPC118095
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. (17.00 + 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
2024-04-19 00:00 UT 17 03 37.9 -07 16 33 12.946 13.635 131.7 3.2 262 33.9
2024-04-19 06:31 UT 17 03 33.8 -07 16 14 12.944 13.637 131.9 3.1 261 33.9
2024-04-20 00:00 UT 17 03 22.5 -07 15 22 12.939 13.640 132.6 3.1 261 33.9
2024-04-21 00:00 UT 17 03 06.9 -07 14 11 12.933 13.646 133.6 3.1 261 33.9
2024-04-22 00:00 UT 17 02 51.0 -07 13 00 12.926 13.651 134.6 3.0 260 33.9
2024-04-23 00:00 UT 17 02 34.9 -07 11 50 12.920 13.656 135.5 3.0 259 33.9
2024-04-24 00:00 UT 17 02 18.6 -07 10 40 12.914 13.661 136.5 2.9 259 33.9
2024-04-25 00:00 UT 17 02 02.0 -07 09 31 12.908 13.666 137.5 2.9 258 33.9
2024-04-26 00:00 UT 17 01 45.2 -07 08 23 12.902 13.672 138.4 2.8 258 33.9
2024-04-27 00:00 UT 17 01 28.2 -07 07 15 12.897 13.677 139.4 2.7 257 33.9
2024-04-28 00:00 UT 17 01 11.0 -07 06 07 12.892 13.682 140.3 2.7 256 33.9
2024-04-29 00:00 UT 17 00 53.6 -07 05 00 12.887 13.687 141.3 2.6 256 33.9
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.