C/2014 E2 (Jacques) |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
PA |
Perihelion | 29 Jun 2014 | 6.3 | 0.660 AU | 1.631 AU | 05h49m | +20°50' | 10.7° | 16.6° | 255° |
Nearest approach | 27 Aug 2014 | 7.1 | 1.311 AU | 0.580 AU | 22h44m | +61°46' | 107.9° | 47.2° | 186° |
Today | 27 Jul 2024 | 28.5 | 25.445 AU | 24.651 AU | 17h48m | -09°55' | 140.7° | 1.4° | 108° |
C/2014 E2 (Jacques)- 2024-07-27
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/2014 E2 (Jacques) are:
e (Eccentricity) : 0.9986916
q (Perihelion distance) : 0.6600717
i (Inclination) : 156.36097
Ω (Longitude of ascending node) : 56.51877
ω (Argument of perihelion) : 344.00393
L (Longitude of perihelion) : 71.23332
B (Latitude of perihelion) : -6.34395
T (Time of perihelion passage) : 2456838.43158
P (Orbital period in years) : 11331.20
Epoch : 2020 Dec 17
Reference : MPEC 2020-SI8
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 gray curve is based on the absolute magnitude and slope parameter as calculated from the original MPEC, or the latest values provided by the MPC (7.10 + 5 log[∆] + 11.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 7.08 + 5 log[∆] + 10.30 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
2024-07-27 00:00 UT 17 48 35.2 -09 55 15 24.646 25.444 140.9 1.4 108 28.5
2024-07-27 06:52 UT 17 48 32.9 -09 55 20 24.651 25.445 140.7 1.4 108 28.5
2024-07-28 00:00 UT 17 48 27.2 -09 55 35 24.661 25.448 140.0 1.5 108 28.5
2024-07-29 00:00 UT 17 48 19.4 -09 55 56 24.676 25.453 139.1 1.5 107 28.5
2024-07-30 00:00 UT 17 48 11.7 -09 56 17 24.692 25.458 138.2 1.5 107 28.5
2024-07-31 00:00 UT 17 48 04.0 -09 56 39 24.707 25.462 137.2 1.6 106 28.5
2024-08-01 00:00 UT 17 47 56.5 -09 57 01 24.723 25.467 136.3 1.6 106 28.5
2024-08-02 00:00 UT 17 47 49.2 -09 57 23 24.739 25.472 135.4 1.6 105 28.5
2024-08-03 00:00 UT 17 47 41.9 -09 57 46 24.755 25.477 134.5 1.6 105 28.5
2024-08-04 00:00 UT 17 47 34.7 -09 58 10 24.771 25.481 133.5 1.7 104 28.5
2024-08-05 00:00 UT 17 47 27.7 -09 58 33 24.788 25.486 132.6 1.7 104 28.5
2024-08-06 00:00 UT 17 47 20.8 -09 58 57 24.805 25.491 131.7 1.7 104 28.5
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.