(40) Harmonia |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Today | 6 Sep 2025 | 11.3 | 2.216 AU | 2.333 AU | 06h10m | +21°34' | 70.8° | 25.4° |
Opposition | 2 Jan 2026 | 9.0 | 2.277 AU | 1.294 AU | 06h51m | +23°54' | 179.0° | 0.4° |
(40) Harmonia - 2025-09-06
astro.vanbuitenen.nl
The interactive orbit chart above shows the body'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 Harmonia are:
e (Eccentricity) : 0.0460364
a (Semimajor axis) : 2.2669577
i (Inclination) : 4.25591
Ω (Longitude of ascending node) : 94.15594
ω (Argument of perihelion) : 269.47054
M (Mean anomaly) : 22.93684
Epoch : 2025 May 05
L (Longitude of perihelion) : 183.62502
B (Latitude of perihelion) : -4.25573
P (Orbital period in years) : 3.41
The light curve chart below shows the estimated development of the minor planet's magnitude.
The all-sky chart below shows the path of the minor planet over the same period as the light curve. The current position is marked yellow.
The following chart shows the path of the minor planet in the next few days. The field of view is optimized for (~10x50) binoculars and finderscopes.
A more printer-friendly version of the same chart can be found below.
Ephemerides:
Date Time RA (2000) DEC (2000) delta radius elong phase PA magn
2025-09-06 00:00 UT 06 10 50.9 +21 34 18 2.333 2.216 70.8 25.4 270 11.3
2025-09-06 07:46 UT 06 11 23.0 +21 34 21 2.330 2.217 71.0 25.5 270 11.3
2025-09-07 00:00 UT 06 12 29.9 +21 34 27 2.322 2.217 71.4 25.5 271 11.3
2025-09-08 00:00 UT 06 14 08.3 +21 34 32 2.311 2.217 72.0 25.6 271 11.3
2025-09-09 00:00 UT 06 15 46.1 +21 34 34 2.301 2.218 72.6 25.7 271 11.3
2025-09-10 00:00 UT 06 17 23.1 +21 34 33 2.290 2.218 73.2 25.8 271 11.3
2025-09-11 00:00 UT 06 18 59.5 +21 34 29 2.279 2.219 73.8 25.8 271 11.2
2025-09-12 00:00 UT 06 20 35.1 +21 34 21 2.268 2.219 74.4 25.9 272 11.2
2025-09-13 00:00 UT 06 22 10.0 +21 34 11 2.257 2.220 75.0 26.0 272 11.2
2025-09-14 00:00 UT 06 23 44.1 +21 33 58 2.246 2.220 75.6 26.0 272 11.2
2025-09-15 00:00 UT 06 25 17.5 +21 33 43 2.235 2.221 76.2 26.1 272 11.2
2025-09-16 00:00 UT 06 26 50.1 +21 33 25 2.223 2.221 76.8 26.1 272 11.2
2025-09-17 00:00 UT 06 28 21.9 +21 33 04 2.212 2.222 77.4 26.2 272 11.2
2025-09-18 00:00 UT 06 29 52.9 +21 32 42 2.201 2.222 78.0 26.3 273 11.2
2025-09-19 00:00 UT 06 31 23.1 +21 32 17 2.190 2.223 78.7 26.3 273 11.2
2025-09-20 00:00 UT 06 32 52.3 +21 31 49 2.179 2.223 79.3 26.4 273 11.2
2025-09-21 00:00 UT 06 34 20.8 +21 31 20 2.167 2.224 79.9 26.4 273 11.2
2025-09-22 00:00 UT 06 35 48.3 +21 30 50 2.156 2.224 80.6 26.4 273 11.2
2025-09-23 00:00 UT 06 37 14.9 +21 30 17 2.145 2.225 81.2 26.5 273 11.1
2025-09-24 00:00 UT 06 38 40.6 +21 29 43 2.133 2.225 81.9 26.5 274 11.1
2025-09-25 00:00 UT 06 40 05.4 +21 29 07 2.122 2.226 82.5 26.5 274 11.1
2025-09-26 00:00 UT 06 41 29.2 +21 28 30 2.110 2.226 83.2 26.6 274 11.1
2025-09-27 00:00 UT 06 42 52.0 +21 27 52 2.099 2.227 83.8 26.6 274 11.1
2025-09-28 00:00 UT 06 44 13.9 +21 27 13 2.087 2.227 84.5 26.6 274 11.1
2025-09-29 00:00 UT 06 45 34.7 +21 26 33 2.076 2.228 85.2 26.6 274 11.1
2025-09-30 00:00 UT 06 46 54.6 +21 25 52 2.064 2.228 85.8 26.6 275 11.1
Terminology:
delta: distance between minor planet and earth in AU
radius: distance between minor planet 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-minor planet)
phase: phase angle in degrees (angle sun-minor planet-earth)
AU: Astronomical Unit (mean distance between earth and sun: 149597870.7 km
Orbital elements provided by 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.