(204) Kallisto |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Today | 7 May 2025 | 14.9 | 3.005 AU | 3.429 AU | 06h54m | +15°35' | 57.2° | 16.4° |
Opposition | 29 Mar 2026 | 12.0 | 2.461 AU | 1.464 AU | 12h28m | -07°13' | 176.1° | 1.6° |
(204) Kallisto - 2025-05-07
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 Kallisto are:
e (Eccentricity) : 0.1757488
a (Semimajor axis) : 2.6710611
i (Inclination) : 8.26953
Ω (Longitude of ascending node) : 204.92267
ω (Argument of perihelion) : 56.79120
M (Mean anomaly) : 231.36275
Epoch : 2025 May 05
L (Longitude of perihelion) : 261.43888
B (Latitude of perihelion) : 6.91171
P (Orbital period in years) : 4.37
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
2025-05-07 00:00 UT 06 54 39.9 +15 35 48 3.429 3.005 57.2 16.4 100 14.9
2025-05-07 06:30 UT 06 54 59.9 +15 35 47 3.432 3.004 57.0 16.4 100 14.9
2025-05-08 00:00 UT 06 55 53.8 +15 35 43 3.439 3.003 56.5 16.3 100 14.9
2025-05-09 00:00 UT 06 57 08.2 +15 35 33 3.450 3.002 55.9 16.2 101 14.9
2025-05-10 00:00 UT 06 58 23.1 +15 35 20 3.460 3.001 55.2 16.0 101 14.9
2025-05-11 00:00 UT 06 59 38.5 +15 35 02 3.470 3.000 54.6 15.9 101 14.9
2025-05-12 00:00 UT 07 00 54.3 +15 34 40 3.481 2.999 53.9 15.8 101 14.9
2025-05-13 00:00 UT 07 02 10.6 +15 34 15 3.491 2.998 53.3 15.7 101 14.9
2025-05-14 00:00 UT 07 03 27.3 +15 33 45 3.500 2.996 52.6 15.5 102 14.9
2025-05-15 00:00 UT 07 04 44.5 +15 33 11 3.510 2.995 52.0 15.4 102 14.9
2025-05-16 00:00 UT 07 06 02.1 +15 32 33 3.520 2.994 51.3 15.3 102 14.9
2025-05-17 00:00 UT 07 07 20.1 +15 31 51 3.530 2.993 50.7 15.2 102 14.9
2025-05-18 00:00 UT 07 08 38.6 +15 31 04 3.539 2.992 50.0 15.0 103 14.9
2025-05-19 00:00 UT 07 09 57.4 +15 30 14 3.549 2.990 49.4 14.9 103 14.9
2025-05-20 00:00 UT 07 11 16.7 +15 29 19 3.558 2.989 48.8 14.7 103 14.9
2025-05-21 00:00 UT 07 12 36.3 +15 28 20 3.567 2.988 48.1 14.6 103 14.9
2025-05-22 00:00 UT 07 13 56.4 +15 27 17 3.576 2.987 47.5 14.5 104 14.9
2025-05-23 00:00 UT 07 15 16.8 +15 26 09 3.585 2.985 46.9 14.3 104 14.9
2025-05-24 00:00 UT 07 16 37.6 +15 24 58 3.594 2.984 46.2 14.2 104 14.9
2025-05-25 00:00 UT 07 17 58.8 +15 23 42 3.603 2.983 45.6 14.0 104 14.9
2025-05-26 00:00 UT 07 19 20.3 +15 22 21 3.611 2.982 45.0 13.9 105 14.9
2025-05-27 00:00 UT 07 20 42.1 +15 20 57 3.620 2.981 44.4 13.7 105 14.9
2025-05-28 00:00 UT 07 22 04.4 +15 19 28 3.628 2.979 43.7 13.6 105 14.9
2025-05-29 00:00 UT 07 23 26.9 +15 17 54 3.636 2.978 43.1 13.4 105 14.9
2025-05-30 00:00 UT 07 24 49.8 +15 16 17 3.644 2.977 42.5 13.3 106 14.9
2025-05-31 00:00 UT 07 26 13.0 +15 14 35 3.652 2.976 41.9 13.1 106 14.9
2025-06-01 00:00 UT 07 27 36.4 +15 12 48 3.660 2.974 41.3 13.0 106 14.9
2025-06-02 00:00 UT 07 29 00.2 +15 10 58 3.668 2.973 40.7 12.8 106 14.9
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.