(335) Roberta |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Today | 25 Apr 2024 | 13.2 | 2.058 AU | 1.782 AU | 20h21m | -14°35' | 90.8° | 29.3° |
Opposition | 2 Aug 2024 | 11.0 | 2.073 AU | 1.059 AU | 20h51m | -14°30' | 176.9° | 1.5° |
(335) Roberta - 2024-04-25
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 Roberta are:
e (Eccentricity) : 0.1720671
a (Semimajor axis) : 2.4758243
i (Inclination) : 5.10218
Ω (Longitude of ascending node) : 148.41679
ω (Argument of perihelion) : 139.78641
M (Mean anomaly) : 344.27843
Epoch : 2024 Mar 31
L (Longitude of perihelion) : 108.31532
B (Latitude of perihelion) : 3.29162
P (Orbital period in years) : 3.90
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
2024-04-25 00:00 UT 20 21 23.8 -14 35 53 1.782 2.058 90.8 29.3 257 13.2
2024-04-25 20:15 UT 20 22 38.4 -14 31 14 1.773 2.058 91.3 29.3 256 13.2
2024-04-26 00:00 UT 20 22 52.2 -14 30 22 1.771 2.058 91.4 29.3 256 13.2
2024-04-27 00:00 UT 20 24 19.7 -14 24 53 1.760 2.057 92.0 29.3 256 13.2
2024-04-28 00:00 UT 20 25 46.1 -14 19 24 1.749 2.057 92.6 29.3 256 13.2
2024-04-29 00:00 UT 20 27 11.6 -14 13 57 1.738 2.056 93.2 29.3 256 13.2
2024-04-30 00:00 UT 20 28 36.1 -14 08 31 1.727 2.056 93.8 29.3 256 13.2
2024-05-01 00:00 UT 20 29 59.5 -14 03 06 1.716 2.056 94.4 29.3 256 13.1
2024-05-02 00:00 UT 20 31 21.9 -13 57 43 1.705 2.055 95.0 29.2 255 13.1
2024-05-03 00:00 UT 20 32 43.2 -13 52 22 1.694 2.055 95.7 29.2 255 13.1
2024-05-04 00:00 UT 20 34 03.4 -13 47 04 1.683 2.055 96.3 29.2 255 13.1
2024-05-05 00:00 UT 20 35 22.5 -13 41 47 1.672 2.054 96.9 29.2 255 13.1
2024-05-06 00:00 UT 20 36 40.5 -13 36 33 1.661 2.054 97.6 29.1 255 13.1
2024-05-07 00:00 UT 20 37 57.3 -13 31 22 1.650 2.054 98.2 29.1 255 13.1
2024-05-08 00:00 UT 20 39 13.0 -13 26 14 1.639 2.053 98.9 29.1 254 13.0
2024-05-09 00:00 UT 20 40 27.5 -13 21 09 1.629 2.053 99.5 29.0 254 13.0
2024-05-10 00:00 UT 20 41 40.8 -13 16 08 1.618 2.053 100.2 29.0 254 13.0
2024-05-11 00:00 UT 20 42 52.8 -13 11 10 1.607 2.053 100.8 28.9 254 13.0
2024-05-12 00:00 UT 20 44 03.7 -13 06 15 1.596 2.052 101.5 28.8 254 13.0
2024-05-13 00:00 UT 20 45 13.3 -13 01 25 1.586 2.052 102.2 28.8 254 13.0
2024-05-14 00:00 UT 20 46 21.7 -12 56 39 1.575 2.052 102.8 28.7 254 12.9
2024-05-15 00:00 UT 20 47 28.8 -12 51 57 1.565 2.052 103.5 28.6 253 12.9
2024-05-16 00:00 UT 20 48 34.6 -12 47 20 1.554 2.051 104.2 28.5 253 12.9
2024-05-17 00:00 UT 20 49 39.1 -12 42 48 1.544 2.051 104.9 28.5 253 12.9
2024-05-18 00:00 UT 20 50 42.2 -12 38 20 1.533 2.051 105.6 28.4 253 12.9
2024-05-19 00:00 UT 20 51 44.1 -12 33 58 1.523 2.051 106.3 28.3 253 12.9
2024-05-20 00:00 UT 20 52 44.6 -12 29 41 1.513 2.051 107.0 28.2 253 12.8
2024-05-21 00:00 UT 20 53 43.7 -12 25 30 1.502 2.051 107.7 28.0 253 12.8
2024-05-22 00:00 UT 20 54 41.5 -12 21 24 1.492 2.050 108.4 27.9 252 12.8
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.