(85) Io |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Today | 27 Jul 2024 | 12.8 | 2.497 AU | 2.214 AU | 14h33m | -06°02' | 93.9° | 23.9° |
Opposition | 16 Oct 2025 | 10.4 | 2.313 AU | 1.317 AU | 01h27m | +09°02' | 179.5° | 0.2° |
(85) Io - 2024-07-27
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 Io are:
e (Eccentricity) : 0.1933554
a (Semimajor axis) : 2.6538284
i (Inclination) : 11.96028
Ω (Longitude of ascending node) : 203.04837
ω (Argument of perihelion) : 122.88738
M (Mean anomaly) : 317.06209
Epoch : 2024 Oct 17
L (Longitude of perihelion) : 146.51168
B (Latitude of perihelion) : 10.02176
P (Orbital period in years) : 4.32
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
2024-07-27 00:00 UT 14 33 46.7 -06 02 08 2.214 2.497 93.9 23.9 109 12.8
2024-07-27 04:32 UT 14 33 55.6 -06 02 53 2.216 2.496 93.7 23.9 109 12.8
2024-07-28 00:00 UT 14 34 34.1 -06 06 11 2.224 2.495 93.1 24.0 109 12.8
2024-07-29 00:00 UT 14 35 22.6 -06 10 19 2.235 2.493 92.4 24.0 109 12.8
2024-07-30 00:00 UT 14 36 12.3 -06 14 33 2.245 2.491 91.7 24.0 108 12.8
2024-07-31 00:00 UT 14 37 03.0 -06 18 52 2.256 2.489 90.9 24.1 108 12.8
2024-08-01 00:00 UT 14 37 54.9 -06 23 16 2.266 2.486 90.2 24.1 108 12.8
2024-08-02 00:00 UT 14 38 47.8 -06 27 44 2.277 2.484 89.5 24.1 108 12.8
2024-08-03 00:00 UT 14 39 41.9 -06 32 18 2.287 2.482 88.8 24.1 108 12.8
2024-08-04 00:00 UT 14 40 37.0 -06 36 55 2.297 2.480 88.1 24.1 108 12.9
2024-08-05 00:00 UT 14 41 33.1 -06 41 38 2.308 2.478 87.4 24.1 107 12.9
2024-08-06 00:00 UT 14 42 30.3 -06 46 24 2.318 2.476 86.7 24.1 107 12.9
2024-08-07 00:00 UT 14 43 28.5 -06 51 15 2.329 2.474 86.0 24.1 107 12.9
2024-08-08 00:00 UT 14 44 27.8 -06 56 10 2.339 2.472 85.3 24.1 107 12.9
2024-08-09 00:00 UT 14 45 28.0 -07 01 08 2.350 2.470 84.6 24.1 107 12.9
2024-08-10 00:00 UT 14 46 29.3 -07 06 10 2.360 2.468 83.9 24.1 107 12.9
2024-08-11 00:00 UT 14 47 31.5 -07 11 15 2.370 2.466 83.3 24.1 106 12.9
2024-08-12 00:00 UT 14 48 34.8 -07 16 24 2.381 2.464 82.6 24.1 106 12.9
2024-08-13 00:00 UT 14 49 38.9 -07 21 36 2.391 2.462 81.9 24.0 106 12.9
2024-08-14 00:00 UT 14 50 44.1 -07 26 51 2.401 2.460 81.2 24.0 106 12.9
2024-08-15 00:00 UT 14 51 50.1 -07 32 09 2.411 2.458 80.6 24.0 106 12.9
2024-08-16 00:00 UT 14 52 57.1 -07 37 29 2.421 2.456 79.9 24.0 106 12.9
2024-08-17 00:00 UT 14 54 05.0 -07 42 52 2.432 2.454 79.3 23.9 105 12.9
2024-08-18 00:00 UT 14 55 13.8 -07 48 18 2.442 2.452 78.6 23.9 105 13.0
2024-08-19 00:00 UT 14 56 23.5 -07 53 46 2.452 2.450 78.0 23.8 105 13.0
2024-08-20 00:00 UT 14 57 34.1 -07 59 16 2.462 2.448 77.3 23.8 105 13.0
2024-08-21 00:00 UT 14 58 45.6 -08 04 49 2.472 2.446 76.7 23.7 105 13.0
2024-08-22 00:00 UT 14 59 57.9 -08 10 23 2.482 2.444 76.0 23.7 104 13.0
2024-08-23 00:00 UT 15 01 11.1 -08 15 59 2.492 2.442 75.4 23.6 104 13.0
2024-08-24 00:00 UT 15 02 25.1 -08 21 37 2.502 2.440 74.8 23.6 104 13.0
2024-08-25 00:00 UT 15 03 40.0 -08 27 17 2.511 2.438 74.1 23.5 104 13.0
2024-08-26 00:00 UT 15 04 55.7 -08 32 58 2.521 2.435 73.5 23.4 104 13.0
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.