(5) Astraea |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Today | 26 Apr 2025 | 11.3 | 2.617 AU | 1.830 AU | 17h30m | -15°49' | 132.5° | 16.5° |
Opposition | 5 Jun 2025 | 10.6 | 2.695 AU | 1.686 AU | 17h00m | -14°51' | 172.1° | 3.0° |
(5) Astraea - 2025-04-26
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 Astraea are:
e (Eccentricity) : 0.1874407
a (Semimajor axis) : 2.5767618
i (Inclination) : 5.35887
Ω (Longitude of ascending node) : 141.45353
ω (Argument of perihelion) : 359.31775
M (Mean anomaly) : 86.24723
Epoch : 2025 May 05
L (Longitude of perihelion) : 140.77426
B (Latitude of perihelion) : -0.06372
P (Orbital period in years) : 4.14
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
2025-04-26 00:00 UT 17 30 02.5 -15 49 58 1.830 2.617 132.5 16.5 266 11.3
2025-04-26 01:02 UT 17 30 01.9 -15 49 53 1.830 2.617 132.5 16.5 266 11.3
2025-04-27 00:00 UT 17 29 45.9 -15 47 60 1.822 2.619 133.5 16.2 266 11.3
2025-04-28 00:00 UT 17 29 27.5 -15 46 02 1.815 2.621 134.5 15.9 266 11.2
2025-04-29 00:00 UT 17 29 07.4 -15 44 04 1.807 2.623 135.6 15.6 265 11.2
2025-04-30 00:00 UT 17 28 45.7 -15 42 08 1.800 2.625 136.6 15.3 265 11.2
2025-05-01 00:00 UT 17 28 22.2 -15 40 12 1.793 2.627 137.7 15.0 265 11.2
2025-05-02 00:00 UT 17 27 57.2 -15 38 17 1.786 2.629 138.7 14.7 264 11.2
2025-05-03 00:00 UT 17 27 30.4 -15 36 23 1.780 2.631 139.8 14.3 264 11.2
2025-05-04 00:00 UT 17 27 02.1 -15 34 30 1.773 2.633 140.8 14.0 264 11.1
2025-05-05 00:00 UT 17 26 32.2 -15 32 39 1.767 2.635 141.9 13.7 263 11.1
2025-05-06 00:00 UT 17 26 00.8 -15 30 48 1.761 2.637 142.9 13.3 263 11.1
2025-05-07 00:00 UT 17 25 27.8 -15 28 59 1.755 2.639 144.0 13.0 263 11.1
2025-05-08 00:00 UT 17 24 53.3 -15 27 11 1.749 2.641 145.1 12.6 262 11.1
2025-05-09 00:00 UT 17 24 17.3 -15 25 25 1.744 2.643 146.2 12.3 262 11.0
2025-05-10 00:00 UT 17 23 39.9 -15 23 40 1.738 2.645 147.3 11.9 261 11.0
2025-05-11 00:00 UT 17 23 01.1 -15 21 57 1.733 2.647 148.3 11.6 261 11.0
2025-05-12 00:00 UT 17 22 20.9 -15 20 16 1.728 2.648 149.4 11.2 260 11.0
2025-05-13 00:00 UT 17 21 39.4 -15 18 36 1.724 2.650 150.5 10.8 260 11.0
2025-05-14 00:00 UT 17 20 56.6 -15 16 58 1.719 2.652 151.6 10.4 259 10.9
2025-05-15 00:00 UT 17 20 12.5 -15 15 22 1.715 2.654 152.7 10.1 259 10.9
2025-05-16 00:00 UT 17 19 27.2 -15 13 48 1.711 2.656 153.8 9.7 258 10.9
2025-05-17 00:00 UT 17 18 40.7 -15 12 16 1.708 2.658 154.9 9.3 257 10.9
2025-05-18 00:00 UT 17 17 53.1 -15 10 46 1.704 2.660 156.0 8.9 256 10.9
2025-05-19 00:00 UT 17 17 04.4 -15 09 18 1.701 2.662 157.1 8.5 255 10.9
2025-05-20 00:00 UT 17 16 14.6 -15 07 53 1.698 2.664 158.1 8.1 254 10.8
2025-05-21 00:00 UT 17 15 23.9 -15 06 30 1.695 2.666 159.2 7.7 253 10.8
2025-05-22 00:00 UT 17 14 32.2 -15 05 09 1.693 2.668 160.3 7.4 252 10.8
2025-05-23 00:00 UT 17 13 39.6 -15 03 51 1.691 2.670 161.4 7.0 250 10.8
2025-05-24 00:00 UT 17 12 46.2 -15 02 36 1.689 2.671 162.4 6.6 249 10.8
2025-05-25 00:00 UT 17 11 52.1 -15 01 23 1.687 2.673 163.5 6.2 247 10.7
2025-05-26 00:00 UT 17 10 57.2 -15 00 13 1.685 2.675 164.5 5.8 245 10.7
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.