(116) Sirona |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Opposition | 19 Dec 2024 | 11.1 | 2.592 AU | 1.609 AU | 05h50m | +25°46' | 177.6° | 0.9° |
Today | 26 Dec 2024 | 11.2 | 2.584 AU | 1.607 AU | 05h43m | +25°52' | 171.6° | 3.2° |
(116) Sirona - 2024-12-26
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 Sirona are:
e (Eccentricity) : 0.1389690
a (Semimajor axis) : 2.7711281
i (Inclination) : 3.56266
Ω (Longitude of ascending node) : 63.69162
ω (Argument of perihelion) : 93.78158
M (Mean anomaly) : 291.14569
Epoch : 2024 Oct 17
L (Longitude of perihelion) : -22.51950
B (Latitude of perihelion) : 3.55489
P (Orbital period in years) : 4.61
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
2024-12-26 00:00 UT 05 43 30.8 +25 52 19 1.607 2.584 171.6 3.2 105 11.2
2024-12-26 13:38 UT 05 42 56.0 +25 52 45 1.607 2.583 170.9 3.5 104 11.2
2024-12-27 00:00 UT 05 42 29.6 +25 53 05 1.607 2.582 170.4 3.7 103 11.2
2024-12-28 00:00 UT 05 41 28.9 +25 53 47 1.608 2.581 169.1 4.1 101 11.3
2024-12-29 00:00 UT 05 40 28.8 +25 54 27 1.610 2.580 167.9 4.6 100 11.3
2024-12-30 00:00 UT 05 39 29.3 +25 55 04 1.611 2.578 166.7 5.0 99 11.3
2024-12-31 00:00 UT 05 38 30.6 +25 55 38 1.613 2.577 165.5 5.5 98 11.3
2025-01-01 00:00 UT 05 37 32.6 +25 56 09 1.615 2.576 164.3 5.9 97 11.4
2025-01-02 00:00 UT 05 36 35.6 +25 56 37 1.618 2.574 163.0 6.4 96 11.4
2025-01-03 00:00 UT 05 35 39.6 +25 57 03 1.620 2.573 161.8 6.8 96 11.4
2025-01-04 00:00 UT 05 34 44.6 +25 57 26 1.623 2.572 160.6 7.3 95 11.4
2025-01-05 00:00 UT 05 33 50.7 +25 57 47 1.626 2.570 159.4 7.7 95 11.5
2025-01-06 00:00 UT 05 32 58.0 +25 58 06 1.630 2.569 158.2 8.2 94 11.5
2025-01-07 00:00 UT 05 32 06.5 +25 58 22 1.634 2.568 157.0 8.6 94 11.5
2025-01-08 00:00 UT 05 31 16.3 +25 58 37 1.638 2.566 155.8 9.0 93 11.5
2025-01-09 00:00 UT 05 30 27.5 +25 58 49 1.642 2.565 154.6 9.5 93 11.6
2025-01-10 00:00 UT 05 29 40.2 +25 58 59 1.646 2.564 153.4 9.9 92 11.6
2025-01-11 00:00 UT 05 28 54.2 +25 59 08 1.651 2.562 152.2 10.3 92 11.6
2025-01-12 00:00 UT 05 28 09.8 +25 59 16 1.656 2.561 151.0 10.7 92 11.6
2025-01-13 00:00 UT 05 27 27.0 +25 59 22 1.661 2.560 149.9 11.1 92 11.6
2025-01-14 00:00 UT 05 26 45.7 +25 59 26 1.666 2.558 148.7 11.5 91 11.7
2025-01-15 00:00 UT 05 26 06.1 +25 59 30 1.672 2.557 147.5 11.9 91 11.7
2025-01-16 00:00 UT 05 25 28.1 +25 59 32 1.678 2.556 146.4 12.3 91 11.7
2025-01-17 00:00 UT 05 24 51.9 +25 59 34 1.684 2.555 145.2 12.7 91 11.7
2025-01-18 00:00 UT 05 24 17.4 +25 59 34 1.690 2.553 144.1 13.1 90 11.7
2025-01-19 00:00 UT 05 23 44.7 +25 59 35 1.697 2.552 143.0 13.4 90 11.8
2025-01-20 00:00 UT 05 23 13.7 +25 59 34 1.704 2.551 141.8 13.8 90 11.8
2025-01-21 00:00 UT 05 22 44.6 +25 59 34 1.711 2.549 140.7 14.2 90 11.8
2025-01-22 00:00 UT 05 22 17.4 +25 59 33 1.718 2.548 139.6 14.5 90 11.8
2025-01-23 00:00 UT 05 21 52.0 +25 59 32 1.725 2.547 138.5 14.8 89 11.9
2025-01-24 00:00 UT 05 21 28.5 +25 59 30 1.733 2.546 137.4 15.2 89 11.9
2025-01-25 00:00 UT 05 21 06.9 +25 59 29 1.740 2.544 136.3 15.5 89 11.9
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.