(154) Bertha |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Today | 10 Jul 2025 | 13.6 | 3.015 AU | 3.705 AU | 10h17m | +26°08' | 41.2° | 12.8° |
Opposition | 25 Apr 2026 | 11.5 | 2.951 AU | 1.946 AU | 14h15m | -13°00' | 178.9° | 0.4° |
(154) Bertha - 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 Bertha are:
e (Eccentricity) : 0.0769701
a (Semimajor axis) : 3.1932788
i (Inclination) : 21.02200
Ω (Longitude of ascending node) : 36.47916
ω (Argument of perihelion) : 167.86676
M (Mean anomaly) : 308.16011
Epoch : 2025 May 05
L (Longitude of perihelion) : 25.13181
B (Latitude of perihelion) : 4.32416
P (Orbital period in years) : 5.71
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 10 17 12.1 +26 08 60 3.705 3.015 41.2 12.8 95 13.6
2025-07-10 06:47 UT 10 17 35.2 +26 05 46 3.707 3.015 41.0 12.8 95 13.6
2025-07-11 00:00 UT 10 18 33.8 +25 57 35 3.713 3.014 40.6 12.7 94 13.6
2025-07-12 00:00 UT 10 19 55.7 +25 46 09 3.720 3.014 40.0 12.5 94 13.6
2025-07-13 00:00 UT 10 21 17.7 +25 34 43 3.728 3.013 39.5 12.4 94 13.6
2025-07-14 00:00 UT 10 22 39.8 +25 23 15 3.735 3.013 38.9 12.2 94 13.6
2025-07-15 00:00 UT 10 24 02.1 +25 11 47 3.742 3.012 38.4 12.1 93 13.6
2025-07-16 00:00 UT 10 25 24.4 +25 00 18 3.749 3.012 37.8 11.9 93 13.6
2025-07-17 00:00 UT 10 26 46.9 +24 48 48 3.756 3.011 37.3 11.8 93 13.6
2025-07-18 00:00 UT 10 28 09.5 +24 37 18 3.763 3.011 36.7 11.6 93 13.6
2025-07-19 00:00 UT 10 29 32.2 +24 25 47 3.770 3.010 36.2 11.5 92 13.6
2025-07-20 00:00 UT 10 30 55.0 +24 14 15 3.777 3.010 35.6 11.3 92 13.6
2025-07-21 00:00 UT 10 32 18.0 +24 02 42 3.784 3.009 35.1 11.2 92 13.6
2025-07-22 00:00 UT 10 33 41.0 +23 51 08 3.790 3.009 34.5 11.0 92 13.6
2025-07-23 00:00 UT 10 35 04.1 +23 39 34 3.796 3.008 34.0 10.9 91 13.6
2025-07-24 00:00 UT 10 36 27.3 +23 27 59 3.803 3.008 33.4 10.7 91 13.6
2025-07-25 00:00 UT 10 37 50.6 +23 16 24 3.809 3.007 32.9 10.6 91 13.6
2025-07-26 00:00 UT 10 39 14.0 +23 04 48 3.815 3.007 32.4 10.4 90 13.6
2025-07-27 00:00 UT 10 40 37.4 +22 53 11 3.821 3.006 31.8 10.3 90 13.6
2025-07-28 00:00 UT 10 42 00.9 +22 41 34 3.827 3.005 31.3 10.1 90 13.6
2025-07-29 00:00 UT 10 43 24.5 +22 29 56 3.832 3.005 30.7 9.9 89 13.6
2025-07-30 00:00 UT 10 44 48.2 +22 18 18 3.838 3.004 30.2 9.8 89 13.6
2025-07-31 00:00 UT 10 46 11.9 +22 06 39 3.844 3.004 29.7 9.6 88 13.6
2025-08-01 00:00 UT 10 47 35.7 +21 54 60 3.849 3.003 29.1 9.5 88 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.