(59) Elpis |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Today | 10 Jul 2025 | 12.0 | 2.592 AU | 1.681 AU | 21h17m | -06°19' | 146.9° | 12.4° |
Opposition | 6 Aug 2025 | 11.4 | 2.560 AU | 1.553 AU | 20h58m | -08°27' | 171.6° | 3.3° |
(59) Elpis - 2025-07-10
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 Elpis are:
e (Eccentricity) : 0.1167475
a (Semimajor axis) : 2.7141370
i (Inclination) : 8.64746
Ω (Longitude of ascending node) : 169.91249
ω (Argument of perihelion) : 211.08401
M (Mean anomaly) : 284.25821
Epoch : 2025 May 05
L (Longitude of perihelion) : 200.70764
B (Latitude of perihelion) : -4.45218
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
2025-07-10 00:00 UT 21 17 02.3 -06 19 22 1.681 2.592 146.9 12.4 238 12.0
2025-07-10 05:33 UT 21 16 55.9 -06 19 56 1.679 2.592 147.1 12.3 238 12.0
2025-07-11 00:00 UT 21 16 33.9 -06 21 52 1.673 2.591 147.9 12.0 238 12.0
2025-07-12 00:00 UT 21 16 04.2 -06 24 33 1.665 2.590 148.9 11.7 237 12.0
2025-07-13 00:00 UT 21 15 33.2 -06 27 25 1.658 2.589 150.0 11.3 236 12.0
2025-07-14 00:00 UT 21 15 01.0 -06 30 27 1.651 2.588 151.0 11.0 236 11.9
2025-07-15 00:00 UT 21 14 27.6 -06 33 40 1.644 2.586 152.1 10.6 235 11.9
2025-07-16 00:00 UT 21 13 53.1 -06 37 03 1.638 2.585 153.1 10.2 234 11.9
2025-07-17 00:00 UT 21 13 17.4 -06 40 37 1.631 2.584 154.2 9.9 233 11.9
2025-07-18 00:00 UT 21 12 40.6 -06 44 22 1.625 2.583 155.2 9.5 233 11.8
2025-07-19 00:00 UT 21 12 02.8 -06 48 16 1.619 2.582 156.2 9.1 232 11.8
2025-07-20 00:00 UT 21 11 23.9 -06 52 21 1.613 2.580 157.3 8.7 231 11.8
2025-07-21 00:00 UT 21 10 44.1 -06 56 36 1.608 2.579 158.3 8.4 229 11.8
2025-07-22 00:00 UT 21 10 03.3 -07 01 00 1.602 2.578 159.4 8.0 228 11.7
2025-07-23 00:00 UT 21 09 21.5 -07 05 35 1.597 2.577 160.4 7.6 227 11.7
2025-07-24 00:00 UT 21 08 39.0 -07 10 19 1.593 2.576 161.4 7.2 225 11.7
2025-07-25 00:00 UT 21 07 55.6 -07 15 12 1.588 2.575 162.4 6.8 224 11.7
2025-07-26 00:00 UT 21 07 11.5 -07 20 15 1.584 2.574 163.4 6.5 222 11.6
2025-07-27 00:00 UT 21 06 26.7 -07 25 26 1.580 2.572 164.4 6.1 219 11.6
2025-07-28 00:00 UT 21 05 41.2 -07 30 46 1.576 2.571 165.4 5.7 217 11.6
2025-07-29 00:00 UT 21 04 55.2 -07 36 14 1.572 2.570 166.3 5.4 214 11.6
2025-07-30 00:00 UT 21 04 08.6 -07 41 51 1.569 2.569 167.2 5.0 211 11.5
2025-07-31 00:00 UT 21 03 21.6 -07 47 35 1.566 2.568 168.1 4.7 207 11.5
2025-08-01 00:00 UT 21 02 34.2 -07 53 26 1.563 2.567 168.9 4.4 203 11.5
2025-08-02 00:00 UT 21 01 46.4 -07 59 25 1.561 2.566 169.6 4.1 198 11.5
2025-08-03 00:00 UT 21 00 58.3 -08 05 30 1.559 2.564 170.3 3.8 193 11.5
2025-08-04 00:00 UT 21 00 10.0 -08 11 42 1.557 2.563 170.8 3.6 186 11.4
2025-08-05 00:00 UT 20 59 21.5 -08 17 60 1.555 2.562 171.2 3.5 179 11.4
2025-08-06 00:00 UT 20 58 32.9 -08 24 23 1.553 2.561 171.5 3.3 172 11.4
2025-08-07 00:00 UT 20 57 44.3 -08 30 53 1.552 2.560 171.7 3.3 164 11.4
2025-08-08 00:00 UT 20 56 55.6 -08 37 27 1.551 2.559 171.6 3.3 156 11.4
2025-08-09 00:00 UT 20 56 07.1 -08 44 06 1.551 2.558 171.4 3.4 148 11.4
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.