C/2025 N2 (ATLAS) |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
PA |
Nearest approach | 4 Jul 2024 | 19.3 | 9.091 AU | 8.355 AU | 19h31m | -68°29' | 134.0° | 4.6° | 348° |
Perihelion | 20 Jan 2025 | 19.6 | 9.019 AU | 9.644 AU | 20h13m | -68°23' | 48.3° | 4.7° | 179° |
Today | 8 Aug 2025 | 19.4 | 9.091 AU | 8.701 AU | 00h14m | -84°57' | 109.6° | 6.0° | 314° |
C/2025 N2 (ATLAS)- 2025-08-08
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/2025 N2 (ATLAS) are:
e (Eccentricity) : 0.9921110
q (Perihelion distance) : 9.0190140
i (Inclination) : 81.70020
Ω (Longitude of ascending node) : 94.52570
ω (Argument of perihelion) : 232.14980
L (Longitude of perihelion) : 105.04913
B (Latitude of perihelion) : -51.38412
T (Time of perihelion passage) : 2460695.83410
P (Orbital period in years) : 38655.00
Epoch : 2025 Aug 07
Reference : MPEC 2025-OF9
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. (5.10 + 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
2025-08-08 00:00 UT 00 14 24.3 -84 54 39 8.698 9.091 109.7 6.0 313 19.4
2025-08-08 12:35 UT 00 14 00.5 -84 57 12 8.701 9.091 109.6 6.0 314 19.4
2025-08-09 00:00 UT 00 13 37.7 -84 59 30 8.703 9.091 109.5 6.0 314 19.4
2025-08-10 00:00 UT 00 12 46.2 -85 04 16 8.708 9.092 109.2 6.0 315 19.4
2025-08-11 00:00 UT 00 11 49.5 -85 08 57 8.713 9.093 108.9 6.1 317 19.4
2025-08-12 00:00 UT 00 10 47.5 -85 13 33 8.719 9.093 108.6 6.1 318 19.4
2025-08-13 00:00 UT 00 09 40.1 -85 18 03 8.724 9.094 108.3 6.1 319 19.4
2025-08-14 00:00 UT 00 08 27.1 -85 22 27 8.730 9.095 108.0 6.1 321 19.4
2025-08-15 00:00 UT 00 07 08.5 -85 26 46 8.736 9.096 107.7 6.1 322 19.4
2025-08-16 00:00 UT 00 05 44.0 -85 30 59 8.741 9.096 107.4 6.1 323 19.4
2025-08-17 00:00 UT 00 04 13.6 -85 35 05 8.747 9.097 107.1 6.1 325 19.4
2025-08-18 00:00 UT 00 02 37.2 -85 39 06 8.753 9.098 106.8 6.1 326 19.4
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.