C/2018 N2 (ASASSN) |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
PA |
Nearest approach | 18 Oct 2019 | 11.7 | 3.140 AU | 2.224 AU | 01h08m | +36°45' | 152.4° | 8.5° | 167° |
Perihelion | 11 Nov 2019 | 11.8 | 3.132 AU | 2.333 AU | 00h14m | +39°08' | 137.1° | 12.4° | 108° |
Today | 26 Apr 2024 | 20.9 | 12.832 AU | 12.056 AU | 13h50m | +27°00' | 138.9° | 3.0° | 171° |
C/2018 N2 (ASASSN)- 2024-04-26
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/2018 N2 (ASASSN) are:
e (Eccentricity) : 1.0016420
q (Perihelion distance) : 3.1318520
i (Inclination) : 77.54470
Ω (Longitude of ascending node) : 24.49720
ω (Argument of perihelion) : 25.27460
L (Longitude of perihelion) : 30.31179
B (Latitude of perihelion) : 24.63956
T (Time of perihelion passage) : 2458799.33750
Epoch : 2024 Apr 25
Reference : MPEC 2022-YN2
Classification(s): : Nearly isotropic; New (a > 10000 AU)
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 (6.00 + 5 log[∆] + 10.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 5.42 + 5 log[∆] + 9.08 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
2024-04-26 00:00 UT 13 50 59.4 +27 00 29 12.052 12.830 139.1 2.9 171 20.9
2024-04-26 08:08 UT 13 50 52.3 +27 00 30 12.056 12.832 138.9 3.0 171 20.9
2024-04-27 00:00 UT 13 50 38.4 +27 00 30 12.063 12.836 138.6 3.0 170 20.9
2024-04-28 00:00 UT 13 50 17.5 +27 00 27 12.074 12.842 138.1 3.0 168 20.9
2024-04-29 00:00 UT 13 49 56.6 +27 00 20 12.085 12.848 137.6 3.0 167 20.9
2024-04-30 00:00 UT 13 49 35.9 +27 00 10 12.097 12.854 137.1 3.1 166 20.9
2024-05-01 00:00 UT 13 49 15.2 +26 59 57 12.108 12.860 136.6 3.1 164 20.9
2024-05-02 00:00 UT 13 48 54.7 +26 59 40 12.120 12.865 136.1 3.1 163 20.9
2024-05-03 00:00 UT 13 48 34.2 +26 59 20 12.133 12.871 135.5 3.1 162 20.9
2024-05-04 00:00 UT 13 48 13.9 +26 58 57 12.145 12.877 134.9 3.2 161 20.9
2024-05-05 00:00 UT 13 47 53.7 +26 58 30 12.158 12.883 134.3 3.2 159 20.9
2024-05-06 00:00 UT 13 47 33.7 +26 57 59 12.171 12.889 133.7 3.2 158 20.9
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.