Asteroid 11 Parthenope

Asteroid 11 Parthenope is a large, main-belt asteroid with a diameter of approximately 162 kilometers. It was discovered on May 11, 1850, by Italian astronomer Annibale de Gasparis and named after the Siren of Greek mythology, Parthenope. The asteroid orbits the Sun between Mars and Jupiter, with a semi-major axis of approximately 2.45 astronomical units (AU) and an orbital period of about 4.04 years. Parthenope's orbit is relatively eccentric and inclined compared to other asteroids in the main belt. It rotates slowly, with a rotation period of about 16 hours. Parthenope is also classified as a C-type asteroid, indicating that its surface is likely rich in carbonaceous materials.

Asteroid 11 Parthenope is currently in the constellation of Ophiucus.

The current Right Ascension of Asteroid 11 Parthenope is 17h 02m 28s and the Declination is -16° 21’ 34” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current magnitude of Asteroid 11 Parthenope is 9.54 (JPL).

Today's rise, transit and set times of Asteroid 11 Parthenope from Greenwich, United Kingdom edit_location_alt (all times relative to the local timezone Europe/London):

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Available Resources

• Position and finder charts (see also Where is Asteroid 11 Parthenope?)
• Distance from Earth (see also How far is Asteroid 11 Parthenope from Earth?)
• When does Asteroid 11 Parthenope rise and set?
• Brightness (see also How bright is Asteroid 11 Parthenope?)
• Orbital elements. Detailed information about Asteroid 11 Parthenope orbital parameters.
• Interactive orbit visualization. 3d visualization showing the orbit of Asteroid 11 Parthenope with respect to the major Solar System objects.
• Physical data. Detailed information about physical properties of Asteroid 11 Parthenope, such as mass and geometric properties.
• 15 days ephemerides. Table showing celestial coordinates and magnitude of Asteroid 11 Parthenope for the past and next 7 days.
• Interactive sky chart. An online planetarium application that shows where to locate Asteroid 11 Parthenope in the sky from your location.
• Live position tracker. A high precision sky chart that uses real deep sky imagery to help locate Asteroid 11 Parthenope with your telescope or on your astrophotographies.

Higher precision deep sky finder chart, 60 arcmin wide, showing where Asteroid 11 Parthenope is right now. Click on the image to see a more detailed fullscreen tracker view.

Also check out Where is Asteroid 11 Parthenope?, a page that provides all the information needed to find Asteroid 11 Parthenope in the sky and additional links to sky charts.

Asteroid 11 Parthenope Distance from Earth

The distance of Asteroid 11 Parthenope from Earth is currently 199,188,807 kilometers, equivalent to 1.331495 Astronomical Units. Light takes 11 minutes and 4.4223 seconds to travel from Asteroid 11 Parthenope and arrive to us.

The following chart shows the distance of Asteroid 11 Parthenope from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.

The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 11 Parthenope from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach of Asteroid 11 Parthenope to Earth

Between 1 January 1900 and 31 December 2099, the closest approach of Asteroid 11 Parthenope to Earth happens on Mon Aug 11 2081 at a distance of 1.187050 Astronomical Units, or 177,580,172 kilometers:

NOTE: values for the closest approach are computed with a sampling interval of 1 day.

Asteroid 11 Parthenope Brightness and Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 11 Parthenope, according to the most recent ephemerides data. Magnitude data is sampled with a 2 days interval and there might be inaccuracies for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies between the observed and predicted brightness because of their highly dynamic behaviour.

Visualization of Asteroid 11 Parthenope Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 11 Parthenope with respect of the Sun and the orbits of the major planets. The position of Asteroid 11 Parthenope and the planets along their orbits in this diagram accurately represents the current configuration of the objects in the Solar System. This is an experimental feature and it requires a WebGL enabled browser. Please provide us feedback!

Asteroid 11 Parthenope 15 Days Ephemeris

The following table lists the ephemerides of Asteroid 11 Parthenope computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 11 Parthenope in our Online Planetarium at the chosen date.

Date	Right AscensionR.A.	DeclinationDec.	MagnitudeMag	Constellation
2023 May 26	17h 09m 05s	-16° 25’ 23”	9.73	Ophiucus
2023 May 27	17h 08m 11s	-16° 24’ 42”	9.70	Ophiucus
2023 May 28	17h 07m 17s	-16° 24’ 02”	9.67	Ophiucus
2023 May 29	17h 06m 20s	-16° 23’ 26”	9.65	Ophiucus
2023 May 30	17h 05m 25s	-16° 22’ 53”	9.62	Ophiucus
2023 May 31	17h 04m 27s	-16° 22’ 22”	9.59	Ophiucus
2023 Jun 01	17h 03m 30s	-16° 21’ 53”	9.56	Ophiucus
2023 Jun 02	17h 02m 33s	-16° 21’ 29”	9.54	Ophiucus
2023 Jun 03	17h 01m 33s	-16° 21’ 07”	9.52	Ophiucus
2023 Jun 04	17h 00m 36s	-16° 20’ 48”	9.50	Ophiucus
2023 Jun 05	16h 59m 35s	-16° 20’ 34”	9.48	Ophiucus
2023 Jun 06	16h 58m 36s	-16° 20’ 21”	9.47	Ophiucus
2023 Jun 07	16h 57m 37s	-16° 20’ 12”	9.47	Ophiucus
2023 Jun 08	16h 56m 38s	-16° 20’ 07”	9.47	Ophiucus