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Encyclopedia > 349 Dembowska
349 Dembowska
Discovery A
Discoverer Auguste Charlois
Discovery date December 9, 1892
Alternate
designations
1892 T B
Category Main belt
Orbital elements C
Epoch 30 January 2005 (JD 2453400.5)
Eccentricity (e) 0.087
Semi-major axis (a) 437.812 Gm (2.927 AU)
Perihelion (q) 399.743 Gm (2.672 AU)
Aphelion (Q) 475.88 Gm (3.181 AU)
Orbital period (P) 1828.662 d (5.01 a)
Mean orbital speed 17.41 km/s
Inclination (i) 8.256°
Longitude of the
ascending node
(Ω)
32.5°
Argument of
perihelion
(ω)
347.171°
Mean anomaly (M) 198.148°
Physical characteristics D
Dimensions 140.0 km
Mass unknown
Density unknown
Surface gravity unknown
Escape velocity unknown
Rotation period 4.701 h
Spectral class R
Absolute magnitude 5.93
Albedo 0.384
Mean surface
temperature
unknown

349 Dembowska is a very large Main belt asteroid. It is classified as a R-type asteroid. Because of the size and high albedo it is one of the brightest asteroids. Auguste Honoré Charlois (November 26, 1864 – March 26, 1910) was a French astronomer who discovered 99 asteroids while working in Nice. ... December 9 is the 343rd day (344th in leap years) of the year in the Gregorian calendar. ... 1892 was a leap year starting on Friday (see link for calendar). ... The provisional designation of comets and asteroids are similar to each other: they both follow a pattern set in 1925 by the Minor Planet Center of the IAU. Historical designations At first, astronomers strove to assign symbols to the minor planets: 1 Ceres a stylized sickle 2 Pallas a lozenge... Minor planets, or planetoids are minor bodies of the Solar system orbiting the Sun (or of other planetary systems orbiting other stars) that are larger than meteoroids (the largest of which might be taken to be around 10 meters or so across) but smaller than major planets (Mercury having a... Image of the main asteroid belt between the orbits of Mars and Jupiter. ... In astronomy, an epoch is a moment in time for which celestial coordinates or orbital elements are specified. ... January 30 is the 30th day of the year in the Gregorian Calendar. ... 2005 (MMV) is a common year starting on Saturday of the Gregorian calendar. ... The Julian day or Julian day number (JDN) is the number of days that have elapsed since 12 noon Greenwich Mean Time (UT or TT) on Monday, January 1, 4713 BC in the proleptic Julian calendar . ... In astrodynamics, under standard assumptions any orbit must be of conic section shape. ... In geometry, the semi-major axis (also semimajor axis) a applies to ellipses and hyperbolas. ... Giga (symbol: G) is a prefix in the SI system of units denoting 109, or 1 000 000 000. ... The metre (Commonwealth English) or meter (American English) (symbol: m) is the SI base unit of length. ... The astronomical unit (AU or au or a. ... This article is about several astronomical terms (apogee & perigee, aphelion & perihelion, generic equivalents based on apsis, and related but rarer terms. ... This article is about several astronomical terms (apogee & perigee, aphelion & perihelion, generic equivalents based on apsis, and related but rarer terms. ... The orbital period is the time it takes a planet (or another object) to make one full orbit. ... A day (symbol: d) is a unit of time equal to 24 hours. ... In astronomy, a Julian year is a unit of time defined as exactly 365. ... The orbital speed of a body, generally a planet, a natural satellite, an artificial satellite, or a multiple star, is the speed at which it orbits around the barycenter of a system, usually around a more massive body. ... Look up Second in Wiktionary, the free dictionary The second (symbol: s) is the SI base unit of time. ... Inclination is one of the six orbital parameters describing the shape and orientation of a celestial orbit and is the angular distance of the orbital plane from the plane of the reference (usually planets equator or the ecliptic), stated in degrees. ... A degree (in full, a degree of arc, arc degree, or arcdegree), usually symbolized °, is a measurement of plane angle, representing 1/360 of a full rotation. ... The Longitude of the ascending node () is one of the orbital elements used to specify the orbit of an object in space. ... The argument of the perihelion is one of the orbital elements describing the orbit of a planet. ... In the study of orbital dynamics the mean anomaly is a measure of time, specific to the orbiting body p, which is a multiple of 2π radians at and only at periapsis. ... For the majority of numbered asteroids, almost nothing is known apart from a few physical parameters. ... Mass is a property of physical objects that, roughly speaking, measures the amount of matter they contain. ... Density (symbol: ρ - Greek: rho) is a measure of mass per unit of volume. ... Gravity is the force of attraction between massive particles. ... In physics, for a given gravitational field and a given position, the escape velocity is the minimum speed an object without propulsion, at that position, needs to have to move away indefinitely from the source of the field, as opposed to falling back or staying in an orbit within a... In astronomy, a rotation period is the time an astronomical object takes to complete one revolution around its rotation axis. ... The hour (symbol: h) is a unit of time. ... Asteroids are assigned a type based on spectral shape, color, and sometimes albedo. ... R-type asteroids are moderately bright, inner-belt asteroids that are spectrally intermediate between the V and A-type asteroids. ... In astronomy, absolute magnitude is the apparent magnitude, m, an object would have if it were at a standardized distance away. ... The albedo is a measure of reflectivity of a surface or body. ... Temperature is the physical property of a system which underlies the common notions of hot and cold; the material with the higher temperature is said to be hotter. ... Image of the main asteroid belt between the orbits of Mars and Jupiter. ... An asteroid is a small, solid object in our Solar System, orbiting the Sun. ... R-type asteroids are moderately bright, inner-belt asteroids that are spectrally intermediate between the V and A-type asteroids. ... The albedo is a measure of reflectivity of a surface or body. ...


It was discovered by Auguste Charlois on December 9, 1892 in Nice. Auguste Honoré Charlois (November 26, 1864 – March 26, 1910) was a French astronomer who discovered 99 asteroids while working in Nice. ... December 9 is the 343rd day (344th in leap years) of the year in the Gregorian calendar. ... 1892 was a leap year starting on Friday (see link for calendar). ... City motto: Nicæa civitas. ...


Aspects

Stationary, than retrograde Opposition Distance to earth Brightness Stationary, than prograde Conjunction to sun
20th March 2005 12th May 2005 2,11576 AE 10,2 mag 6th July 2005 24th December 2005
29th Juni 2006 13th August 2006 1,77694 AE 9,7 mag 4th October 2006 4th April 2007
12th October 2007 1st December 2007 1,77578 AE 9,6 mag 17th January 2008 19th July 2008
8th January 2009 26th February 2009 2,12864 AE 10,3 mag 24th April 2009 9th October 2009
19th March 2010 12th May 2010 2,11691 AE 10,2 mag 5th July 2010 24th December 2010
28th Juni 2011 13th August 2011 1,77868 AE 9,7 mag 4th October 2011 2nd April 2012
12th October 2012 30th November 2012 1,77396 AE 9,6 mag 16th January 2013 19th July 2013
8th January 2014 26th February 2014 2,12757 AE 10,3 mag 24th April 2014 9th October 2014
19th March 2015 12th May 2015 2,11802 AE 10,2 mag 5th July 2015 24th December 2015
27th Juni 2016 12th August 2016 1,78044 AE 9,7 mag 3th October 2016 2nd April 2017
11th October 2017 30th November 2017 1,77212 AE 9,6 mag 16th January 2018 19th July 2018
8th January 2019 26th February 2019 2,12654 AE 10,3 mag 23th April 2019 9th October 2019
18th March 2020 11th May 2020 2,11914 AE 10,2 mag 4th July 2020 23th December 2020

… | Previous minor planet | 349 Dembowska | Next minor planet | … 348 May is a large Main belt asteroid. ... 350 Ornamenta is a very large Main belt asteroid. ...



The minor planetsedit
Vulcanoids | Main belt | Groups and families | Near-Earth asteroids | Jupiter Trojans
Centaurs | Damocloids | Comets | Trans-Neptunians (Kuiper belt · Scattered disc · Oort cloud)
For other objects and regions, see: Binary asteroids, Asteroid moons and the Solar system
For a complete listing, see: List of asteroids. For pronunciation, see: Pronunciation of asteroid names.

  Results from FactBites:
 
Dembowska (minor planet 349) (88 words)
An asteroid that is very red in color and of a unique type (R); it was discovered in 1892 by the French astronomer August Charlois.
Dembowska is highly irregular in shape, spins around 5 times a day, and has a surface made up largely of the bright green mineral, olivine.
Its composition seems closely to match that of the pyroxene-olivine achondrite meteorites.
[15.11] Expanding the Spectral Compositional Information of Asteroid 349 Dembowska (296 words)
Dembowska is an unusually bright asteroid (geometric albedo=0.38+/-.02, Tedesco et al., 1992), with a taxonomic classification of R. Various interpretations of previous datasets have suggested a pyroxene-olivine mixture (e.g.
Data acquired at IRTF at various sub-earth-latitudes and rotational phases have been interpreted to suggest a heterogeneous surface composed of low calcium pyroxene and olivine with a localized zone of brightened albedo north of -25 latitude is seen(Abell, 2003).
UV-Vis spectra (0.39 -0.56 microns) were acquired of asteroid 349 Dembowska in 1997 and 2001 at McDonald Observatory, TX using the 2.7-m and 2.1-m telescopes, respectively.
  More results at FactBites »


 
 

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