(22) Kalliope |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Opposition | 13 Sep 2025 | 10.9 | 2.803 AU | 1.838 AU | 00h02m | -22°08' | 159.5° | 7.2° |
Today | 10 Oct 2025 | 11.1 | 2.778 AU | 1.903 AU | 23h40m | -22°49' | 144.6° | 12.0° |
(22) Kalliope - 2025-10-10
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 Kalliope are:
e (Eccentricity) : 0.0988798
a (Semimajor axis) : 2.9094657
i (Inclination) : 13.70168
Ω (Longitude of ascending node) : 65.96712
ω (Argument of perihelion) : 358.23621
M (Mean anomaly) : 310.67004
Epoch : 2025 Nov 21
L (Longitude of perihelion) : 64.25349
B (Latitude of perihelion) : -0.41772
P (Orbital period in years) : 4.96
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
2025-10-10 00:00 UT 23 40 10.3 -22 49 15 1.903 2.778 144.6 12.0 36 11.1
2025-10-10 04:37 UT 23 40 02.2 -22 48 56 1.904 2.777 144.4 12.1 37 11.1
2025-10-11 00:00 UT 23 39 28.5 -22 47 32 1.908 2.777 143.7 12.3 38 11.1
2025-10-12 00:00 UT 23 38 47.7 -22 45 35 1.914 2.776 142.8 12.6 39 11.2
2025-10-13 00:00 UT 23 38 08.0 -22 43 23 1.920 2.775 141.9 12.8 40 11.2
2025-10-14 00:00 UT 23 37 29.5 -22 40 58 1.927 2.774 141.0 13.1 41 11.2
2025-10-15 00:00 UT 23 36 52.1 -22 38 19 1.933 2.773 140.1 13.4 42 11.2
2025-10-16 00:00 UT 23 36 15.9 -22 35 25 1.940 2.772 139.1 13.6 43 11.2
2025-10-17 00:00 UT 23 35 41.0 -22 32 19 1.947 2.771 138.2 13.9 44 11.2
2025-10-18 00:00 UT 23 35 07.3 -22 28 58 1.954 2.770 137.3 14.1 45 11.3
2025-10-19 00:00 UT 23 34 35.0 -22 25 24 1.962 2.769 136.3 14.4 46 11.3
2025-10-20 00:00 UT 23 34 04.0 -22 21 37 1.969 2.768 135.4 14.6 46 11.3
2025-10-21 00:00 UT 23 33 34.3 -22 17 37 1.977 2.767 134.5 14.9 47 11.3
2025-10-22 00:00 UT 23 33 06.0 -22 13 24 1.985 2.767 133.5 15.1 48 11.3
2025-10-23 00:00 UT 23 32 39.2 -22 08 59 1.993 2.766 132.6 15.4 49 11.3
2025-10-24 00:00 UT 23 32 13.7 -22 04 21 2.002 2.765 131.7 15.6 49 11.4
2025-10-25 00:00 UT 23 31 49.7 -21 59 30 2.010 2.764 130.7 15.8 50 11.4
2025-10-26 00:00 UT 23 31 27.1 -21 54 28 2.019 2.763 129.8 16.0 51 11.4
2025-10-27 00:00 UT 23 31 06.1 -21 49 14 2.028 2.762 128.9 16.3 51 11.4
2025-10-28 00:00 UT 23 30 46.5 -21 43 48 2.037 2.761 127.9 16.5 52 11.4
2025-10-29 00:00 UT 23 30 28.3 -21 38 11 2.046 2.760 127.0 16.7 52 11.4
2025-10-30 00:00 UT 23 30 11.7 -21 32 23 2.055 2.759 126.1 16.9 53 11.5
2025-10-31 00:00 UT 23 29 56.6 -21 26 24 2.064 2.758 125.2 17.1 54 11.5
2025-11-01 00:00 UT 23 29 43.0 -21 20 14 2.074 2.757 124.3 17.3 54 11.5
2025-11-02 00:00 UT 23 29 30.8 -21 13 54 2.084 2.757 123.3 17.5 55 11.5
2025-11-03 00:00 UT 23 29 20.2 -21 07 24 2.093 2.756 122.4 17.7 55 11.5
2025-11-04 00:00 UT 23 29 11.1 -21 00 44 2.103 2.755 121.5 17.9 55 11.5
2025-11-05 00:00 UT 23 29 03.5 -20 53 54 2.113 2.754 120.6 18.1 56 11.6
2025-11-06 00:00 UT 23 28 57.4 -20 46 55 2.124 2.753 119.7 18.2 56 11.6
2025-11-07 00:00 UT 23 28 52.7 -20 39 47 2.134 2.752 118.8 18.4 57 11.6
2025-11-08 00:00 UT 23 28 49.6 -20 32 30 2.145 2.751 117.9 18.6 57 11.6
2025-11-09 00:00 UT 23 28 47.9 -20 25 03 2.155 2.750 117.0 18.7 58 11.6
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.