Hebe imaged by the European Southern Observatory's Very Large Telescope
Discovery
Discovered by
Karl Ludwig Hencke
Discovery date
1 July 1847
Designations
MPC designation
(6) Hebe
Pronunciation
/ˈhiːbiː/[1]
Named after
Hēbē
Alternative designations
A847 NA; 1847 JB
Minor planet category
Main belt
Adjectives
Hebean /hiːˈbiːən/
Symbol
(historical)
Orbital characteristics[2]
Epoch 13 September 2023 (JD 2453300.5)
Aphelion
2.92 AU (437 million km)
Perihelion
1.93 AU (289 million km)
Semi-major axis
2.43 AU (364 million km)
Eccentricity
0.2027
Orbital period (sidereal)
3.78 yr (1379.85 d)
Average orbital speed
18.93 km/s
Mean anomaly
144.0°
Inclination
14.736°
Longitude of ascending node
138.63°
Time of perihelion
10 March 2022
Argument of perihelion
239.59°
Earth MOID
0.97 AU (145 million km)
Proper orbital elements[3]
Proper semi-major axis
2.4252710 AU
Proper eccentricity
0.1584864
Proper inclination
14.3511092°
Proper mean motion
95.303184 deg / yr
Proper orbital period
3.77742 yr (1379.702 d)
Precession of perihelion
31.568209 arcsec / yr
Precession of the ascending node
−41.829042 arcsec / yr
Physical characteristics
Dimensions
205 km × 185 km × 170 km[4][5][6]
Mean diameter
195±3 km[7] 186 km[4]
Flattening
0.25[a]
Mass
(1.24±0.24)×1019 kg[7] (1.27±0.13)×1019 kg[b][8]
Mean density
3.18±0.64 g/cm3[7] 3.77±0.43 g/cm3[8]
Equatorial surface gravity
~0.079–0.099 m/s2
Equatorial escape velocity
~0.127–0.135 km/s (457–486 km/h)
Synodic rotation period
0.3031 d[9]
Equatorial rotation velocity
22.2–24.6 m/s[c]
Geometric albedo
0.268[7][5]
Temperature
~170 K max: ~269 K (−4°C)
Spectral type
S
Apparent magnitude
7.5[10] to 11.50
Absolute magnitude (H)
5.61[2]
Angular diameter
0.26" to 0.065"
Hebe/ˈhiːbiː/ (minor planet designation: 6 Hebe) is a large main-belt asteroid, containing around 0.5% of the mass of the belt. However, due to its apparently high bulk density (greater than that of the Moon), Hebe does not rank among the top twenty asteroids by volume. This high bulk density suggests an extremely solid body that has not been impacted by collisions, which is not typical of asteroids of its size – they tend to be loosely-bound rubble piles.
In brightness, Hebe is the fifth-brightest object in the asteroid belt after Vesta, Ceres, Iris, and Pallas. It has a mean opposition magnitude of +8.3, about equal to the mean brightness of Saturn's moon Titan,[11] and can reach +7.5 at an opposition near perihelion.
Hebe may be the parent body of the H chondrite meteorites, which account for about 40% of all meteorites striking Earth.
^Noah Webster (1884) A Practical Dictionary of the English Language
^"AstDyS-2 Hebe Synthetic Proper Orbital Elements". Department of Mathematics, University of Pisa, Italy. Retrieved 1 October 2011.
^ ab
Jim Baer (2008). "Recent Asteroid Mass Determinations". Personal Website. Archived from the original on 2 July 2013. Retrieved 28 November 2008.
^ abSupplemental IRAS Minor Planet Survey Archived 23 June 2006 at archive.today
^J. Torppa et al. Shapes and rotational properties of thirty asteroids from photometric data, Icarus, Vol. 164, p. 346 (2003).
^ abcdeP. Vernazza et al. (2021) VLT/SPHERE imaging survey of the largest main-belt asteroids: Final results and synthesis. Astronomy & Astrophysics 54, A56
^ abJames Baer, Steven Chesley & Robert Matson (2011) "Astrometric masses of 26 asteroids and observations on asteroid porosity." The Astronomical Journal, Volume 141, Number 5
^Planetary Data System Small Bodies Node, lightcurve parameters Archived 14 June 2006 at archive.today
^Donald H. Menzel & Jay M. Pasachoff (1983). A Field Guide to the Stars and Planets (2nd ed.). Boston, MA: Houghton Mifflin. pp. 391. ISBN 0-395-34835-8.
^The Brightest Asteroids Archived 2008-05-11 at the Wayback Machine
Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).
Hebe /ˈhiːbiː/ (minor planet designation: 6Hebe) is a large main-belt asteroid, containing around 0.5% of the mass of the belt. However, due to its apparently...
sixth-discovered satellite of a planet or minor planet (e.g. Jupiter VI) 6Hebe The cells of a beehive are six-sided. Insects have six legs (see Hexapoda)...
Look up Hebe or hebe- in Wiktionary, the free dictionary. Hebe may refer to: Hebe (mythology), the goddess of youth in Greek mythology Hebe (Marvel Comics)...
later met with success. Two years later he discovered his second asteroid 6Hebe. He also worked on the improvement of star maps. He died at the age of 73...
large asteroids. Of those in the above list, only 4 Vesta, 19 Fortuna, 6Hebe, 7 Iris and 9 Metis orbit there. (Sort table by mean distance.) Below are...
astronomer, discovered the next two asteroids, 5 Astraea (in 1845) and 6Hebe (in 1847). Hencke requested that the symbol for 5 Astraea be an upside-down...
Hebe Tien (Chinese: 田馥甄; pinyin: Tián Fùzhēn; born 30 March 1983) is a Taiwanese singer and actress. She rose to fame in the early 2000s as a member of...
onto small near-Earth asteroids broken off from 6Hebe in the past, rather than originating from 6Hebe directly. The H chondrites have very similar trace...
the stars. It was his first of two asteroid discoveries. The second was 6Hebe. A German amateur astronomer and post office headmaster, Hencke was looking...
dwarf planet Ceres and the asteroids 4 Vesta, 2 Pallas, 7 Iris, 3 Juno, and 6Hebe. A telescope or strong binoculars will resolve Neptune as a small blue disk...
sceptre, encoded U+26B5 ⚵ JUNO). Encke (1850) used symbols for 5 Astraea, 6Hebe, 7 Iris, 8 Flora and 9 Metis in the Berliner Astronomisches Jahrbuch. In...
parent body. The best candidate for this parent body is the S-type asteroid 6Hebe. Unlike most iron meteorites, the type IIE are thought to have been melted...
of the H chondrites (comprising about 46% of the ordinary chondrites) is 6Hebe, but its spectrum is dissimilar due to what is likely a metal impact melt...
exception, in that they probably originate from the crust of S-type asteroid 6Hebe. Chemical and isotope analysis indicates that at least about 50 distinct...
thing as blue in the south. Note that there is very strong evidence that 6Hebe is the parent body for H-chondrites, one of the most common meteorite types...
RFA Hebe (A406) was a stores ship of the Royal Fleet Auxiliary (RFA). Hebe was built by Henry Robb of Leith for the British-India Steam Navigation Company...
near perihelion Iris can reach a magnitude of +6.7 (last time on October 31, 2017, reaching a magnitude of +6.9), which is as bright as Ceres ever gets. A...
(AU) 6Hebe 0.975 AU (145.9 million km; 90.6 million mi; 379 LD) 7 Iris 0.850 AU (127.2 million km; 79.0 million mi; 331 LD) 8 Flora 0.873 AU (130.6 million km;...
To Hebe is the debut Mandarin solo studio album of Taiwanese Mandopop artist Hebe Tien, of girl group S.H.E. It was released on 3 September 2010 by HIM...
Hebe María Pastor de Bonafini (4 December 1928 – 20 November 2022) was an Argentine activist who was one of the founders of the Association of the Mothers...
Veronica salicifolia, synonym Hebe salicifolia, the koromiko, or willow-leaf hebe, is a flowering plant in the family Plantaginaceae, which is found throughout...
interloper. Instead, it may have been spalled off from 6Hebe or its parent body. 695 Bella and 6Hebe orbit on opposite sides of the 3:1 Kirkwood gap, and...
July 1 – German amateur astronomer Karl Ludwig Hencke discovers asteroid 6Hebe from Driesen. August 13 – English astronomer John Russell Hind discovers...
Hebe Reef is a reef located about 5 kilometres (3.1 mi) northwest of the mouth of the Tamar River in Tasmania, Australia. Part of the reef is visible at...
Global Information
(historical)