Asteroid 349 Dembowska is a main-belt asteroid that was discovered on February 9, 1892, by Max Wolf at the Heidelberg Observatory in Germany. It is named after the Polish astronomer, Anna Dembowska. This asteroid has an irregular shape with dimensions of 139.77±4.3 × 140 × 145.23±17.21 km, and a rotation period of 4.7 hours. Its surface is relatively bright and is composed of silicate minerals and some metallic nickel-iron. Dembowska has an orbital period of 4.32 years and a distance from the Sun of about 2.4 astronomical units.
Find it in the Sky
Chose a date & time and view the position of asteroid 349 Dembowska in the sky on our interactive planetarium.
In Evidence
Asteroid 349 Dembowska
Asteroid 349 Dembowska is in the constellation of Libra, at a distance of
Finder Charts
The sky charts below show, at different resolutions, the position of asteroid 349 Dembowska in the sky. Click on each chart to access the interactive star map tool.
The following map uses photographic imagery from the Digitized Sky Survey (DSS) to realistically visualize the precise position of asteroid 349 Dembowska against the stars in the background. The horizontal size of the map measures 60 arcminutes. Click on the image to access a more detailed full-screen view.
Equatorial Coordinates
Apparent
J2000
Additional Information
Rise and Set Times
The following table lists today's rise, transit and set times of asteroid 349 Dembowska from Polong, Philippines (all times relative to the local timezone Asia/Manila):
If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.
Distance from Earth
The distance of asteroid 349 Dembowska from Earth is currently
The following graph shows the distance of asteroid 349 Dembowska from Earth as a function of time. In the chart the distance is measured in Astronomical Units and the data is sampled with an interval of 1 day.
Note: The values in this chart may not be entirely accurate around the time of closest approach for objects passing very close to Earth at high speed (e.g., Near-Earth Objects).
The value of the distance of 349 Dembowska from Earth is also available as a real time updated value in the live position tracker.
Closest Approach to Earth
In the period between January 1, 1900 and December 31, 2099, the closest approach of asteroid 349 Dembowska to Earth will happen on Wednesday 24 November 2077 at a distance of 1.740168 Astronomical Units, or 260,325,416 kilometers:
Note: the values for the closest approach are computed with a sampling interval of 1 day.
Light Curve
The following chart shows the light curve of asteroid 349 Dembowska, i.e., its apparent magnitude as a function of time. The curve is calculated using the latest ephemerides provided by JPL Horizons. The magnitude data is sampled with the interval of 2 days. Because of this sampling, inaccuracies may occur for objects that have large variations of brightness over a few days. For comets, large discrepancies can arise between the calculated brightness and the observations due to their highly dynamic, and not always precisely predictable, behavior.
Orbital Elements
The following table lists the orbital elements of asteroid 349 Dembowska at epoch February, 24 2023 00:00 UTC (JD: 2460000.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.08945363 |
| Orbit inclination | i | 8.25090113° |
| Perihelion distance | q | 2.66158113 AU 398,166,870 km |
| Aphelion distance | Q |
3.18453765 AU 476,400,053 km |
| Semi-major axis | a |
2.92305939 AU 437,283,461 km |
| Orbital period | period |
4.9976 years 1,825.3867 days |
| Date of perihelion transit | Tp | April 16, 2022 2,459,686.3094 JD |
| Next perihelion transit | April 16, 2027 2,461,511.6962 JD |
|
| Argument of perihelion | peri | 344.31385486018° |
| Longitude of the ascending node | node | 32.192410931239° |
| Mean anomaly | M | 61.964184619407° |
| Mean motion | n | 0.19721848°/day |
Orbit Visualization
The following chart is a 3D animated visualization of the orbit of asteroid 349 Dembowska relative to the other major objects in the Solar System. You can access more advanced features using our 3D Solar System Viewer.
15 Days Ephemeris
The following table lists the ephemerides of asteroid 349 Dembowska computed for the past and next 7 days, with a 24 hours interval. Apparent celestial coordinates are provided.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| Jul 05 2025 | 14h 42m 09s | -20° 58’ 14” | 11.10 | Libra |
| Jul 06 2025 | 14h 42m 10s | -20° 58’ 31” | 11.11 | Libra |
| Jul 07 2025 | 14h 42m 12s | -20° 58’ 53” | 11.12 | Libra |
| Jul 08 2025 | 14h 42m 15s | -20° 59’ 19” | 11.14 | Libra |
| Jul 09 2025 | 14h 42m 19s | -20° 59’ 51” | 11.15 | Libra |
| Jul 10 2025 | 14h 42m 25s | -21° 00’ 28” | 11.16 | Libra |
| Jul 11 2025 | 14h 42m 32s | -21° 01’ 09” | 11.18 | Libra |
| Jul 12 2025 | 14h 42m 41s | -21° 01’ 55” | 11.19 | Libra |
| Jul 13 2025 | 14h 42m 51s | -21° 02’ 46” | 11.20 | Libra |
| Jul 14 2025 | 14h 43m 02s | -21° 03’ 43” | 11.22 | Libra |
| Jul 15 2025 | 14h 43m 14s | -21° 04’ 44” | 11.23 | Libra |
| Jul 16 2025 | 14h 43m 28s | -21° 05’ 49” | 11.24 | Libra |
| Jul 17 2025 | 14h 43m 43s | -21° 07’ 00” | 11.26 | Libra |
| Jul 18 2025 | 14h 43m 59s | -21° 08’ 14” | 11.27 | Libra |
Additional Resources on TheSkyLive
- Asteroid 349 Dembowska: Complete reference information on TheSkyLive.com.
- Where is asteroid 349 Dembowska?: Key information on where to find asteroid 349 Dembowska in the sky.
- Distance of asteroid 349 Dembowska from Earth: Find out how far asteroid 349 Dembowska is from Earth right now.
- How Bright is asteroid 349 Dembowska?: Current visual brightness (magnitude) and apparent size.
- Rise and Set Times: Rise and set times of asteroid 349 Dembowska from your location.
- Interactive Sky Map: Planetarium-style interactive visualization of asteroid 349 Dembowska's position in the sky.
- Live Position Tracker: High precision real time tracker of asteroid 349 Dembowska's position using deep space imagery.
- Ephemeris: 15 days asteroid 349 Dembowska's computed ephemeris.
- Orbital elements: Information about asteroid 349 Dembowska orbital parameters.
- Orbit Visualization: 3D interactive visualization showing the orbit of asteroid 349 Dembowska with respect to the major Solar System objects.