|
(313) Chaldaea |
| ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
| Today | 17 Dec 2025 | 14.3 | 2.554 AU | 3.515 AU | 17h12m | -14°40' | 10.6° | 4.1° |
| Opposition | 24 Jul 2026 | 13.1 | 2.794 AU | 1.800 AU | 20h03m | -05°08' | 165.0° | 5.4° |
(313) Chaldaea - 2025-12-17
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 Chaldaea are:
e (Eccentricity) : 0.1808338
a (Semimajor axis) : 2.3756468
i (Inclination) : 11.64375
Ω (Longitude of ascending node) : 176.53270
ω (Argument of perihelion) : 315.73423
M (Mean anomaly) : 98.13748
Epoch : 2025 Nov 21
L (Longitude of perihelion) : 132.86222
B (Latitude of perihelion) : -8.09830
P (Orbital period in years) : 3.66
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.
Ephemerides:
Date Time RA (2000) DEC (2000) delta radius elong phase PA magn
2025-12-17 00:00 UT 17 12 14.2 -14 40 03 3.515 2.554 10.6 4.1 326 14.3
2025-12-17 15:10 UT 17 13 24.3 -14 40 60 3.515 2.555 10.8 4.1 324 14.3
2025-12-18 00:00 UT 17 14 05.1 -14 41 32 3.515 2.556 10.9 4.2 324 14.3
2025-12-19 00:00 UT 17 15 55.9 -14 42 56 3.515 2.558 11.3 4.3 321 14.3
2025-12-20 00:00 UT 17 17 46.6 -14 44 13 3.515 2.559 11.7 4.5 319 14.3
2025-12-21 00:00 UT 17 19 37.2 -14 45 25 3.514 2.561 12.1 4.6 317 14.4
2025-12-22 00:00 UT 17 21 27.7 -14 46 31 3.514 2.563 12.6 4.8 315 14.4
2025-12-23 00:00 UT 17 23 18.0 -14 47 31 3.513 2.564 13.0 5.0 313 14.4
2025-12-24 00:00 UT 17 25 08.2 -14 48 25 3.512 2.566 13.5 5.1 311 14.4
2025-12-25 00:00 UT 17 26 58.3 -14 49 13 3.511 2.568 13.9 5.3 310 14.4
2025-12-26 00:00 UT 17 28 48.2 -14 49 55 3.510 2.569 14.4 5.5 308 14.4
2025-12-27 00:00 UT 17 30 38.0 -14 50 32 3.509 2.571 14.9 5.6 307 14.4
2025-12-28 00:00 UT 17 32 27.6 -14 51 02 3.508 2.573 15.3 5.8 305 14.4
2025-12-29 00:00 UT 17 34 17.0 -14 51 27 3.506 2.574 15.8 6.0 304 14.4
2025-12-30 00:00 UT 17 36 06.3 -14 51 46 3.505 2.576 16.3 6.2 303 14.4
2025-12-31 00:00 UT 17 37 55.4 -14 51 59 3.503 2.578 16.8 6.3 302 14.4
2026-01-01 00:00 UT 17 39 44.3 -14 52 07 3.501 2.579 17.3 6.5 301 14.5
2026-01-02 00:00 UT 17 41 33.0 -14 52 09 3.499 2.581 17.8 6.7 300 14.5
2026-01-03 00:00 UT 17 43 21.6 -14 52 04 3.497 2.583 18.3 6.9 298 14.5
2026-01-04 00:00 UT 17 45 09.9 -14 51 55 3.495 2.584 18.9 7.1 298 14.5
2026-01-05 00:00 UT 17 46 58.1 -14 51 39 3.493 2.586 19.4 7.3 297 14.5
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.
