(103) Hera |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Today | 31 Aug 2025 | 13.5 | 2.892 AU | 3.730 AU | 08h41m | +16°58' | 29.3° | 9.8° |
Opposition | 19 Feb 2026 | 11.6 | 2.920 AU | 1.932 AU | 10h17m | +12°57' | 177.6° | 0.8° |
(103) Hera - 2025-08-31
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 Hera are:
e (Eccentricity) : 0.0801521
a (Semimajor axis) : 2.7045465
i (Inclination) : 5.42148
Ω (Longitude of ascending node) : 135.97346
ω (Argument of perihelion) : 190.38520
M (Mean anomaly) : 121.30224
Epoch : 2025 May 05
L (Longitude of perihelion) : 146.31321
B (Latitude of perihelion) : -0.97589
P (Orbital period in years) : 4.45
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
2025-08-31 00:00 UT 08 41 19.7 +16 58 25 3.730 2.892 29.3 9.8 283 13.5
2025-08-31 12:22 UT 08 42 06.5 +16 55 47 3.727 2.892 29.6 9.9 283 13.5
2025-09-01 00:00 UT 08 42 50.5 +16 53 18 3.723 2.892 29.9 10.0 283 13.5
2025-09-02 00:00 UT 08 44 21.1 +16 48 09 3.717 2.893 30.5 10.2 283 13.6
2025-09-03 00:00 UT 08 45 51.5 +16 42 57 3.710 2.893 31.1 10.4 283 13.6
2025-09-04 00:00 UT 08 47 21.5 +16 37 44 3.703 2.893 31.7 10.5 283 13.6
2025-09-05 00:00 UT 08 48 51.2 +16 32 30 3.696 2.894 32.3 10.7 284 13.6
2025-09-06 00:00 UT 08 50 20.6 +16 27 14 3.689 2.894 32.9 10.9 284 13.6
2025-09-07 00:00 UT 08 51 49.7 +16 21 56 3.681 2.895 33.5 11.1 284 13.6
2025-09-08 00:00 UT 08 53 18.6 +16 16 36 3.674 2.895 34.1 11.2 284 13.6
2025-09-09 00:00 UT 08 54 47.1 +16 11 15 3.666 2.895 34.7 11.4 284 13.6
2025-09-10 00:00 UT 08 56 15.3 +16 05 53 3.659 2.896 35.3 11.6 284 13.6
2025-09-11 00:00 UT 08 57 43.2 +16 00 29 3.651 2.896 35.9 11.8 285 13.6
2025-09-12 00:00 UT 08 59 10.8 +15 55 04 3.643 2.896 36.5 11.9 285 13.6
2025-09-13 00:00 UT 09 00 38.0 +15 49 38 3.635 2.897 37.1 12.1 285 13.6
2025-09-14 00:00 UT 09 02 05.0 +15 44 10 3.627 2.897 37.7 12.3 285 13.6
2025-09-15 00:00 UT 09 03 31.6 +15 38 42 3.618 2.897 38.3 12.4 285 13.6
2025-09-16 00:00 UT 09 04 57.8 +15 33 12 3.610 2.898 38.9 12.6 285 13.6
2025-09-17 00:00 UT 09 06 23.8 +15 27 41 3.601 2.898 39.6 12.8 285 13.6
2025-09-18 00:00 UT 09 07 49.3 +15 22 09 3.593 2.899 40.2 12.9 286 13.6
2025-09-19 00:00 UT 09 09 14.6 +15 16 37 3.584 2.899 40.8 13.1 286 13.6
2025-09-20 00:00 UT 09 10 39.4 +15 11 04 3.575 2.899 41.4 13.3 286 13.6
2025-09-21 00:00 UT 09 12 03.9 +15 05 30 3.566 2.900 42.1 13.4 286 13.6
2025-09-22 00:00 UT 09 13 28.1 +14 59 55 3.557 2.900 42.7 13.6 286 13.6
2025-09-23 00:00 UT 09 14 51.8 +14 54 20 3.548 2.900 43.3 13.7 286 13.6
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.