(71) Niobe |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Today | 31 Aug 2025 | 11.8 | 2.451 AU | 2.021 AU | 17h14m | -38°13' | 102.8° | 23.7° |
Opposition | 25 Sep 2026 | 11.9 | 3.098 AU | 2.161 AU | 23h25m | +23°51' | 154.8° | 7.9° |
(71) Niobe - 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 Niobe are:
e (Eccentricity) : 0.1769568
a (Semimajor axis) : 2.7546232
i (Inclination) : 23.24272
Ω (Longitude of ascending node) : 315.90887
ω (Argument of perihelion) : 267.05076
M (Mean anomaly) : 18.04959
Epoch : 2025 May 05
L (Longitude of perihelion) : 42.69965
B (Latitude of perihelion) : -23.21013
P (Orbital period in years) : 4.57
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 17 14 25.5 -38 13 16 2.021 2.451 102.8 23.7 91 11.8
2025-08-31 15:26 UT 17 15 08.6 -38 06 12 2.029 2.452 102.3 23.7 91 11.8
2025-09-01 00:00 UT 17 15 32.8 -38 02 18 2.034 2.452 102.1 23.7 91 11.8
2025-09-02 00:00 UT 17 16 41.2 -37 51 26 2.047 2.454 101.3 23.8 91 11.9
2025-09-03 00:00 UT 17 17 50.6 -37 40 41 2.060 2.455 100.6 23.8 92 11.9
2025-09-04 00:00 UT 17 19 01.0 -37 30 02 2.074 2.457 99.9 23.8 92 11.9
2025-09-05 00:00 UT 17 20 12.4 -37 19 30 2.087 2.459 99.2 23.9 92 11.9
2025-09-06 00:00 UT 17 21 24.7 -37 09 03 2.100 2.460 98.5 23.9 92 11.9
2025-09-07 00:00 UT 17 22 38.0 -36 58 43 2.114 2.462 97.8 23.9 92 11.9
2025-09-08 00:00 UT 17 23 52.2 -36 48 28 2.127 2.464 97.1 23.9 92 12.0
2025-09-09 00:00 UT 17 25 07.3 -36 38 19 2.140 2.465 96.4 24.0 92 12.0
2025-09-10 00:00 UT 17 26 23.2 -36 28 16 2.154 2.467 95.7 24.0 92 12.0
2025-09-11 00:00 UT 17 27 40.0 -36 18 18 2.168 2.469 95.0 24.0 92 12.0
2025-09-12 00:00 UT 17 28 57.6 -36 08 25 2.181 2.470 94.3 24.0 92 12.0
2025-09-13 00:00 UT 17 30 16.0 -35 58 38 2.195 2.472 93.6 24.0 92 12.0
2025-09-14 00:00 UT 17 31 35.2 -35 48 55 2.209 2.474 92.9 24.0 92 12.0
2025-09-15 00:00 UT 17 32 55.2 -35 39 18 2.222 2.475 92.3 24.0 92 12.1
2025-09-16 00:00 UT 17 34 15.9 -35 29 45 2.236 2.477 91.6 23.9 92 12.1
2025-09-17 00:00 UT 17 35 37.4 -35 20 17 2.250 2.479 90.9 23.9 92 12.1
2025-09-18 00:00 UT 17 36 59.6 -35 10 54 2.264 2.480 90.2 23.9 92 12.1
2025-09-19 00:00 UT 17 38 22.5 -35 01 35 2.278 2.482 89.5 23.9 92 12.1
2025-09-20 00:00 UT 17 39 46.1 -34 52 20 2.292 2.484 88.8 23.8 92 12.1
2025-09-21 00:00 UT 17 41 10.4 -34 43 09 2.306 2.485 88.2 23.8 92 12.1
2025-09-22 00:00 UT 17 42 35.3 -34 34 02 2.320 2.487 87.5 23.8 92 12.2
2025-09-23 00:00 UT 17 44 00.9 -34 24 59 2.334 2.489 86.8 23.7 92 12.2
2025-09-24 00:00 UT 17 45 27.1 -34 15 59 2.348 2.490 86.2 23.7 92 12.2
2025-09-25 00:00 UT 17 46 54.0 -34 07 04 2.362 2.492 85.5 23.7 92 12.2
2025-09-26 00:00 UT 17 48 21.4 -33 58 11 2.376 2.494 84.8 23.6 92 12.2
2025-09-27 00:00 UT 17 49 49.4 -33 49 22 2.390 2.496 84.2 23.6 92 12.2
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.