(17) Thetis |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Today | 10 Jul 2025 | 13.6 | 2.780 AU | 3.592 AU | 05h01m | +18°57' | 31.8° | 11.1° |
Opposition | 30 Dec 2025 | 11.6 | 2.777 AU | 1.795 AU | 06h40m | +19°15' | 176.1° | 1.4° |
(17) Thetis - 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 Thetis are:
e (Eccentricity) : 0.1319544
a (Semimajor axis) : 2.4711982
i (Inclination) : 5.59242
Ω (Longitude of ascending node) : 125.52279
ω (Argument of perihelion) : 135.78158
M (Mean anomaly) : 142.11870
Epoch : 2025 May 05
L (Longitude of perihelion) : 81.44099
B (Latitude of perihelion) : 3.89694
P (Orbital period in years) : 3.88
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 05 01 11.0 +18 57 42 3.592 2.780 31.8 11.1 258 13.6
2025-07-10 05:13 UT 05 01 31.8 +18 58 12 3.591 2.780 31.9 11.1 258 13.6
2025-07-11 00:00 UT 05 02 46.6 +18 59 57 3.585 2.780 32.4 11.3 258 13.6
2025-07-12 00:00 UT 05 04 22.1 +19 02 09 3.579 2.781 32.9 11.5 259 13.6
2025-07-13 00:00 UT 05 05 57.3 +19 04 16 3.572 2.781 33.5 11.6 259 13.6
2025-07-14 00:00 UT 05 07 32.4 +19 06 18 3.565 2.782 34.1 11.8 259 13.6
2025-07-15 00:00 UT 05 09 07.2 +19 08 17 3.558 2.782 34.6 12.0 260 13.6
2025-07-16 00:00 UT 05 10 41.9 +19 10 11 3.550 2.782 35.2 12.2 260 13.6
2025-07-17 00:00 UT 05 12 16.4 +19 12 02 3.543 2.783 35.8 12.3 260 13.6
2025-07-18 00:00 UT 05 13 50.6 +19 13 48 3.535 2.783 36.4 12.5 260 13.6
2025-07-19 00:00 UT 05 15 24.7 +19 15 30 3.528 2.784 37.0 12.7 261 13.6
2025-07-20 00:00 UT 05 16 58.5 +19 17 08 3.520 2.784 37.5 12.8 261 13.6
2025-07-21 00:00 UT 05 18 32.1 +19 18 41 3.512 2.784 38.1 13.0 261 13.6
2025-07-22 00:00 UT 05 20 05.5 +19 20 11 3.504 2.785 38.7 13.2 261 13.6
2025-07-23 00:00 UT 05 21 38.6 +19 21 36 3.496 2.785 39.3 13.4 262 13.6
2025-07-24 00:00 UT 05 23 11.5 +19 22 58 3.488 2.785 39.9 13.5 262 13.6
2025-07-25 00:00 UT 05 24 44.1 +19 24 15 3.480 2.786 40.5 13.7 262 13.6
2025-07-26 00:00 UT 05 26 16.4 +19 25 28 3.471 2.786 41.0 13.8 262 13.6
2025-07-27 00:00 UT 05 27 48.5 +19 26 38 3.462 2.786 41.6 14.0 263 13.6
2025-07-28 00:00 UT 05 29 20.3 +19 27 43 3.454 2.787 42.2 14.2 263 13.6
2025-07-29 00:00 UT 05 30 51.7 +19 28 44 3.445 2.787 42.8 14.3 263 13.6
2025-07-30 00:00 UT 05 32 22.9 +19 29 42 3.436 2.787 43.4 14.5 263 13.6
2025-07-31 00:00 UT 05 33 53.8 +19 30 35 3.427 2.788 44.0 14.7 263 13.6
2025-08-01 00:00 UT 05 35 24.4 +19 31 25 3.418 2.788 44.6 14.8 264 13.6
2025-08-02 00:00 UT 05 36 54.6 +19 32 11 3.409 2.788 45.2 15.0 264 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.