(54) Alexandra |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Today | 5 Jul 2025 | 13.8 | 3.218 AU | 4.231 AU | 06h59m | +27°15' | 4.5° | 1.4° |
Opposition | 4 Feb 2026 | 12.3 | 3.218 AU | 2.232 AU | 09h10m | +15°35' | 179.3° | 0.2° |
(54) Alexandra - 2025-07-05
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 Alexandra are:
e (Eccentricity) : 0.1972818
a (Semimajor axis) : 2.7144119
i (Inclination) : 11.81106
Ω (Longitude of ascending node) : 313.06012
ω (Argument of perihelion) : 345.97112
M (Mean anomaly) : 143.00388
Epoch : 2025 May 05
L (Longitude of perihelion) : 299.31688
B (Latitude of perihelion) : -2.84406
P (Orbital period in years) : 4.47
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
2025-07-05 00:00 UT 06 59 31.2 +27 15 19 4.231 3.218 4.5 1.4 10 13.8
2025-07-05 23:28 UT 07 01 01.0 +27 12 02 4.232 3.219 4.5 1.4 3 13.8
2025-07-06 00:00 UT 07 01 03.0 +27 11 57 4.232 3.219 4.5 1.4 3 13.8
2025-07-07 00:00 UT 07 02 34.7 +27 08 32 4.232 3.220 4.5 1.4 355 13.8
2025-07-08 00:00 UT 07 04 06.2 +27 05 05 4.232 3.220 4.7 1.5 348 13.8
2025-07-09 00:00 UT 07 05 37.6 +27 01 35 4.232 3.221 4.9 1.5 341 13.8
2025-07-10 00:00 UT 07 07 08.9 +26 58 02 4.232 3.221 5.2 1.6 335 13.8
2025-07-11 00:00 UT 07 08 40.1 +26 54 27 4.232 3.222 5.5 1.7 330 13.9
2025-07-12 00:00 UT 07 10 11.1 +26 50 49 4.232 3.222 5.9 1.8 325 13.9
2025-07-13 00:00 UT 07 11 42.0 +26 47 09 4.231 3.223 6.3 2.0 321 13.9
2025-07-14 00:00 UT 07 13 12.8 +26 43 26 4.231 3.224 6.7 2.1 317 13.9
2025-07-15 00:00 UT 07 14 43.4 +26 39 40 4.230 3.224 7.2 2.3 314 13.9
2025-07-16 00:00 UT 07 16 13.9 +26 35 53 4.229 3.225 7.7 2.4 311 13.9
2025-07-17 00:00 UT 07 17 44.2 +26 32 02 4.228 3.225 8.2 2.6 309 13.9
2025-07-18 00:00 UT 07 19 14.3 +26 28 09 4.227 3.226 8.7 2.7 307 13.9
2025-07-19 00:00 UT 07 20 44.3 +26 24 14 4.225 3.226 9.2 2.9 305 13.9
2025-07-20 00:00 UT 07 22 14.2 +26 20 16 4.224 3.227 9.8 3.1 303 13.9
2025-07-21 00:00 UT 07 23 43.8 +26 16 16 4.222 3.227 10.3 3.2 302 14.0
2025-07-22 00:00 UT 07 25 13.3 +26 12 13 4.220 3.228 10.9 3.4 301 14.0
2025-07-23 00:00 UT 07 26 42.6 +26 08 08 4.218 3.228 11.4 3.6 300 14.0
2025-07-24 00:00 UT 07 28 11.8 +26 04 00 4.215 3.229 12.0 3.7 299 14.0
2025-07-25 00:00 UT 07 29 40.7 +25 59 51 4.213 3.229 12.6 3.9 298 14.0
2025-07-26 00:00 UT 07 31 09.4 +25 55 38 4.210 3.230 13.1 4.1 297 14.0
2025-07-27 00:00 UT 07 32 38.0 +25 51 24 4.208 3.230 13.7 4.3 296 14.0
2025-07-28 00:00 UT 07 34 06.3 +25 47 07 4.205 3.231 14.3 4.5 295 14.0
2025-07-29 00:00 UT 07 35 34.4 +25 42 48 4.202 3.231 14.9 4.6 295 14.0
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.