|
A/2019 O2 |
| ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
PA |
| Perihelion | 5 Apr 2023 | 19.5 | 9.680 AU | 9.208 AU | 16h34m | +32°52' | 115.4° | 5.4° | 243° |
| Nearest approach | 16 May 2023 | 19.5 | 9.682 AU | 9.045 AU | 16h14m | +33°22' | 126.6° | 4.8° | 193° |
| Today | 26 Mar 2026 | 20.0 | 11.088 AU | 10.384 AU | 15h27m | -11°35' | 132.9° | 3.8° | 278° |
A/2019 O2- 2026-03-26
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.)
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.
The displayed light curve is calculated under the assumption that the object remains inactive. (H=9.35; G=.15).
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 A/2019 O2 are:
e (Eccentricity) : 0.8355240
q (Perihelion distance) : 9.6799650
i (Inclination) : 93.28280
Ω (Longitude of ascending node) : 48.26620
ω (Argument of perihelion) : 129.56120
L (Longitude of perihelion) : 52.23138
B (Latitude of perihelion) : 50.32513
T (Time of perihelion passage) : 2460040.37950
P (Orbital period in years) : 451.50
Epoch : 2026 Mar 25
Reference : MPEC 2026-E44
Classification(s): : Nearly isotropic; Returning (a < 10000 AU); External (P > 200 years)
Ephemerides
Date Time RA (2000) DEC (2000) delta radius elong phase PA magn
2026-03-25 00:00 UT 15 27 52.4 -11 34 03 10.403 11.084 131.1 3.9 278 20.0
2026-03-26 00:00 UT 15 27 35.2 -11 34 39 10.393 11.086 132.1 3.8 278 20.0
2026-03-26 18:56 UT 15 27 21.4 -11 35 08 10.384 11.088 132.9 3.8 278 20.0
2026-03-27 00:00 UT 15 27 17.6 -11 35 16 10.382 11.089 133.2 3.8 278 20.0
2026-03-28 00:00 UT 15 26 59.7 -11 35 51 10.372 11.091 134.2 3.7 278 20.0
2026-03-29 00:00 UT 15 26 41.5 -11 36 26 10.362 11.093 135.3 3.6 277 20.0
2026-03-30 00:00 UT 15 26 23.0 -11 37 01 10.352 11.096 136.3 3.6 277 20.0
2026-03-31 00:00 UT 15 26 04.2 -11 37 35 10.343 11.098 137.3 3.5 277 20.0
2026-04-01 00:00 UT 15 25 45.0 -11 38 08 10.333 11.100 138.4 3.4 277 20.0
2026-04-02 00:00 UT 15 25 25.6 -11 38 41 10.324 11.103 139.4 3.4 276 20.0
2026-04-03 00:00 UT 15 25 05.9 -11 39 14 10.316 11.105 140.5 3.3 276 20.0
2026-04-04 00:00 UT 15 24 45.8 -11 39 46 10.307 11.108 141.5 3.2 276 20.0
2026-04-05 00:00 UT 15 24 25.5 -11 40 18 10.299 11.110 142.6 3.1 276 20.0
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.
