|
C/2018 N2 (ASASSN) |
| ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
PA |
| Nearest approach | 19 Oct 2019 | 11.7 | 3.146 AU | 2.226 AU | 01h12m | +36°25' | 153.0° | 8.3° | 168° |
| Perihelion | 11 Nov 2019 | 11.8 | 3.138 AU | 2.330 AU | 00h20m | +38°49' | 138.2° | 12.1° | 109° |
| Today | 5 Jun 2026 | 22.4 | 17.148 AU | 16.646 AU | 13h40m | +17°57' | 118.1° | 3.0° | 129° |
C/2018 N2 (ASASSN)- 2026-06-05
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.)
Light curve
The light curve chart below shows the estimated development of the comet's magnitude. Blue and black dots are visual and photometric CCD observations from COBS.
This lightcurve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 5.6 + 5 log[∆] + 8.7 log[r]). An additional green curve is displayed when an increase in apparent brightness is expected due to forward scattering of sunlight, which occurs when a dust-rich comet is located between the Earth and the Sun. (See Marcus 2007)
Charts
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.
Orbital elements
The orbital elements of C/2018 N2 (ASASSN) are:
e (Eccentricity) : 1.0020970
q (Perihelion distance) : 3.1381730
i (Inclination) : 77.43270
Ω (Longitude of ascending node) : 25.27520
ω (Argument of perihelion) : 24.63170
L (Longitude of perihelion) : 30.97243
B (Latitude of perihelion) : 24.00385
T (Time of perihelion passage) : 2458799.45760
Epoch : 2026 Jun 04
Reference : MPC194156
Classification(s): : Nearly isotropic; New (a > 10000 AU)
Ephemerides
Date Time RA (2000) DEC (2000) delta radius elong phase PA magn
2026-06-04 00:00 UT 13 40 23.4 +17 59 01 16.623 17.141 119.2 3.0 130 22.4
2026-06-05 00:00 UT 13 40 13.7 +17 58 02 16.641 17.146 118.3 3.0 129 22.4
2026-06-05 07:38 UT 13 40 10.7 +17 57 43 16.646 17.148 118.1 3.0 129 22.4
2026-06-06 00:00 UT 13 40 04.2 +17 57 02 16.659 17.151 117.5 3.0 129 22.4
2026-06-07 00:00 UT 13 39 54.9 +17 55 60 16.677 17.157 116.7 3.0 128 22.4
2026-06-08 00:00 UT 13 39 45.8 +17 54 55 16.695 17.162 115.8 3.1 127 22.4
2026-06-09 00:00 UT 13 39 36.9 +17 53 49 16.714 17.167 115.0 3.1 127 22.4
2026-06-10 00:00 UT 13 39 28.2 +17 52 41 16.733 17.173 114.1 3.1 126 22.4
2026-06-11 00:00 UT 13 39 19.8 +17 51 32 16.751 17.178 113.2 3.1 126 22.4
2026-06-12 00:00 UT 13 39 11.5 +17 50 20 16.770 17.183 112.4 3.1 125 22.4
2026-06-13 00:00 UT 13 39 03.4 +17 49 07 16.789 17.189 111.5 3.2 125 22.5
2026-06-14 00:00 UT 13 38 55.5 +17 47 52 16.809 17.194 110.7 3.2 124 22.5
2026-06-15 00:00 UT 13 38 47.8 +17 46 35 16.828 17.199 109.8 3.2 124 22.5
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.
