|
(397) Vienna |
| ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
| Today | 19 Jan 2026 | 14.9 | 2.685 AU | 3.493 AU | 17h56m | -18°19' | 29.9° | 10.5° |
| Opposition | 4 Aug 2026 | 12.1 | 2.172 AU | 1.204 AU | 20h31m | +05°28' | 156.4° | 10.8° |
(397) Vienna - 2026-01-19
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 Vienna are:
e (Eccentricity) : 0.2473263
a (Semimajor axis) : 2.6351384
i (Inclination) : 12.86808
Ω (Longitude of ascending node) : 227.88372
ω (Argument of perihelion) : 139.93528
M (Mean anomaly) : 266.13915
Epoch : 2025 Nov 21
L (Longitude of perihelion) : 188.53525
B (Latitude of perihelion) : 8.24151
P (Orbital period in years) : 4.28
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.
Ephemerides:
Date Time RA (2000) DEC (2000) delta radius elong phase PA magn
2026-01-19 00:00 UT 17 56 09.9 -18 19 11 3.493 2.685 29.9 10.5 279 14.9
2026-01-19 01:51 UT 17 56 18.0 -18 19 01 3.493 2.685 29.9 10.5 279 14.9
2026-01-20 00:00 UT 17 57 55.6 -18 16 53 3.484 2.683 30.5 10.7 279 14.9
2026-01-21 00:00 UT 17 59 41.3 -18 14 30 3.475 2.680 31.1 10.9 279 14.9
2026-01-22 00:00 UT 18 01 26.8 -18 12 00 3.465 2.677 31.6 11.1 278 14.9
2026-01-23 00:00 UT 18 03 12.3 -18 09 25 3.455 2.675 32.2 11.3 278 14.9
2026-01-24 00:00 UT 18 04 57.6 -18 06 44 3.446 2.672 32.8 11.5 278 14.9
2026-01-25 00:00 UT 18 06 42.8 -18 03 58 3.436 2.670 33.4 11.7 277 14.9
2026-01-26 00:00 UT 18 08 27.9 -18 01 05 3.426 2.667 34.0 11.9 277 14.9
2026-01-27 00:00 UT 18 10 12.9 -17 58 07 3.415 2.664 34.6 12.1 277 14.9
2026-01-28 00:00 UT 18 11 57.8 -17 55 03 3.405 2.662 35.2 12.3 277 14.9
2026-01-29 00:00 UT 18 13 42.5 -17 51 53 3.395 2.659 35.8 12.5 276 14.9
2026-01-30 00:00 UT 18 15 27.1 -17 48 37 3.384 2.657 36.4 12.7 276 14.9
2026-01-31 00:00 UT 18 17 11.5 -17 45 16 3.374 2.654 37.0 12.9 276 14.9
2026-02-01 00:00 UT 18 18 55.8 -17 41 49 3.363 2.651 37.6 13.1 276 14.9
2026-02-02 00:00 UT 18 20 39.9 -17 38 16 3.352 2.649 38.2 13.3 275 14.9
2026-02-03 00:00 UT 18 22 23.9 -17 34 37 3.341 2.646 38.8 13.5 275 14.9
2026-02-04 00:00 UT 18 24 07.7 -17 30 52 3.331 2.644 39.4 13.7 275 14.9
2026-02-05 00:00 UT 18 25 51.4 -17 27 02 3.319 2.641 40.0 13.9 274 14.9
2026-02-06 00:00 UT 18 27 34.8 -17 23 06 3.308 2.638 40.6 14.1 274 14.9
2026-02-07 00:00 UT 18 29 18.1 -17 19 04 3.297 2.636 41.2 14.3 274 14.9
2026-02-08 00:00 UT 18 31 01.2 -17 14 56 3.286 2.633 41.8 14.4 274 14.8
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.
