(335) Roberta |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Opposition | 2 Aug 2024 | 11.0 | 2.073 AU | 1.059 AU | 20h51m | -14°30' | 176.9° | 1.5° |
Today | 8 Sep 2024 | 12.1 | 2.107 AU | 1.232 AU | 20h31m | -18°07' | 140.2° | 17.8° |
(335) Roberta - 2024-09-08
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) : 0.1719232
a (Semimajor axis) : 2.4754033
i (Inclination) : 5.10247
Ω (Longitude of ascending node) : 148.41485
ω (Argument of perihelion) : 139.78186
M (Mean anomaly) : 34.89283
Epoch : 2024 Oct 17
L (Longitude of perihelion) : 108.30884
B (Latitude of perihelion) : 3.29212
P (Orbital period in years) : 3.89
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
2024-09-08 00:00 UT 20 31 20.3 -18 07 48 1.232 2.107 140.2 17.8 77 12.1
2024-09-08 02:02 UT 20 31 20.1 -18 08 07 1.232 2.107 140.1 17.9 77 12.1
2024-09-09 00:00 UT 20 31 17.9 -18 11 27 1.240 2.108 139.2 18.2 77 12.2
2024-09-10 00:00 UT 20 31 17.5 -18 14 55 1.249 2.109 138.2 18.6 77 12.2
2024-09-11 00:00 UT 20 31 19.0 -18 18 15 1.257 2.110 137.2 18.9 77 12.2
2024-09-12 00:00 UT 20 31 22.5 -18 21 24 1.266 2.111 136.2 19.3 76 12.2
2024-09-13 00:00 UT 20 31 27.9 -18 24 24 1.275 2.112 135.3 19.6 76 12.3
2024-09-14 00:00 UT 20 31 35.3 -18 27 15 1.284 2.113 134.3 19.9 76 12.3
2024-09-15 00:00 UT 20 31 44.6 -18 29 56 1.294 2.115 133.4 20.2 76 12.3
2024-09-16 00:00 UT 20 31 55.9 -18 32 27 1.303 2.116 132.4 20.5 76 12.3
2024-09-17 00:00 UT 20 32 09.0 -18 34 49 1.313 2.117 131.5 20.8 76 12.4
2024-09-18 00:00 UT 20 32 24.1 -18 37 02 1.322 2.118 130.6 21.1 76 12.4
2024-09-19 00:00 UT 20 32 41.0 -18 39 05 1.332 2.119 129.6 21.4 76 12.4
2024-09-20 00:00 UT 20 32 59.7 -18 40 58 1.342 2.121 128.7 21.7 76 12.5
2024-09-21 00:00 UT 20 33 20.4 -18 42 43 1.352 2.122 127.8 22.0 76 12.5
2024-09-22 00:00 UT 20 33 42.8 -18 44 17 1.363 2.123 126.9 22.2 76 12.5
2024-09-23 00:00 UT 20 34 07.0 -18 45 43 1.373 2.124 126.0 22.5 76 12.5
2024-09-24 00:00 UT 20 34 33.0 -18 46 59 1.383 2.125 125.1 22.7 76 12.6
2024-09-25 00:00 UT 20 35 00.8 -18 48 06 1.394 2.127 124.3 22.9 76 12.6
2024-09-26 00:00 UT 20 35 30.4 -18 49 04 1.405 2.128 123.4 23.2 75 12.6
2024-09-27 00:00 UT 20 36 01.7 -18 49 53 1.415 2.129 122.5 23.4 75 12.6
2024-09-28 00:00 UT 20 36 34.7 -18 50 32 1.426 2.130 121.7 23.6 75 12.7
2024-09-29 00:00 UT 20 37 09.4 -18 51 02 1.437 2.132 120.8 23.8 75 12.7
2024-09-30 00:00 UT 20 37 45.8 -18 51 24 1.448 2.133 120.0 24.0 75 12.7
2024-10-01 00:00 UT 20 38 23.9 -18 51 36 1.460 2.134 119.1 24.2 75 12.7
2024-10-02 00:00 UT 20 39 03.5 -18 51 39 1.471 2.136 118.3 24.4 75 12.8
2024-10-03 00:00 UT 20 39 44.8 -18 51 33 1.482 2.137 117.5 24.5 75 12.8
2024-10-04 00:00 UT 20 40 27.7 -18 51 18 1.494 2.138 116.7 24.7 75 12.8
2024-10-05 00:00 UT 20 41 12.2 -18 50 54 1.505 2.140 115.8 24.9 75 12.8
2024-10-06 00:00 UT 20 41 58.2 -18 50 21 1.517 2.141 115.0 25.0 75 12.8
2024-10-07 00:00 UT 20 42 45.7 -18 49 39 1.529 2.142 114.2 25.2 75 12.9
2024-10-08 00:00 UT 20 43 34.7 -18 48 49 1.540 2.144 113.4 25.3 75 12.9
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.