240 Vanadis

240 Vanadis
	Orbital diagram
Discovery
Discovered by	A. Borrelly
Discovery date	27 August 1884
Designations
MPC designation	(240) Vanadis
Pronunciation	/ˈvɑːnə.dɪs/
Named after	Freyja
Alternative designations	A884 QB
Minor planet category	Main belt
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	131.61 yr (48072 d)
\|{{{apsis}}}\|helion}}	3.2134 astronomical unit\|AU (480.72 Gm)
\|{{{apsis}}}\|helion}}	2.1178 AU (316.82 Gm)
Semi-major axis	2.6656 AU (398.77 Gm)
Eccentricity	0.20551
Orbital period	4.35 yr (1,589.6 d)
Average Orbital speed	18.25 km/s
Mean anomaly	60.5202°
Mean motion	0° 13m 35.292s / day
Inclination	2.1043°
Longitude of ascending node	115.191°
\|{{{apsis}}}\|helion}}	300.174°
Physical characteristics
Dimensions	103.90±2.5 km; 94.03±5.37 km
Mass	(1.10 ± 0.92) × 1018 kg
Mean density	2.53±2.15 g/cm3
Rotation period	10.64 h (0.443 d)
Geometric albedo	0.0411±0.002
Spectral type	C
Absolute magnitude (H)	9.00

Short description: Main-belt asteroid

Vanadis (minor planet designation: 240 Vanadis) is a fairly large main-belt asteroid with a diameter of around 100 km. It was discovered by A. Borrelly on August 27, 1884, in Marseilles and was named after Freyja (Vanadis), the Norse fertility goddess. The asteroid is orbiting the Sun at a distance of 2.67 astronomical unit|AU with a period of 4.35 yr and an orbital eccentricity of 0.206. The orbital plane is inclined at an angle of 2.10° to the plane of the ecliptic.^[1]

Photometric observations of the asteroid made during 2022 were used to produce a light curve that showed a rotation period of 10.565±0.002 h with a brightness variation of 0.07±0.01 in magnitude. This is consistent with earlier estimates.^[3] It is very dark and is classified as a C-type asteroid, probably composed of primitive carbonaceous material.

References

↑ ^1.0 ^1.1 ^1.2 "240 Vanadis". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=240;cad=1.
↑ ^2.0 ^2.1 ^2.2 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: pp. 98–118, doi:10.1016/j.pss.2012.03.009, Bibcode: 2012P&SS...73...98C. See Table 1.
↑ Pilcher, Frederick (October 2022), "Lightcurves and Rotation Periods of 233 Asterope, 240 Vanadis, 275 Sapientia, 282 Clorinde, 414 Liriope, and 542 Susanna", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers 49 (4): 346–349, Bibcode: 2022MPBu...49..346P.

External links

The Asteroid Orbital Elements Database
Minor Planet Discovery Circumstances
Asteroid Lightcurve Data File
240 Vanadis at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
240 Vanadis at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/240 Vanadis. Read more

[jpldata-1] 1.0 ^1.1 ^1.2 "240 Vanadis". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=240;cad=1.

[Carry2012-2] 2.0 ^2.1 ^2.2 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: pp. 98–118, doi:10.1016/j.pss.2012.03.009, Bibcode: 2012P&SS...73...98C. See Table 1.

[Pilcher_2022-3] Pilcher, Frederick (October 2022), "Lightcurves and Rotation Periods of 233 Asterope, 240 Vanadis, 275 Sapientia, 282 Clorinde, 414 Liriope, and 542 Susanna", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers 49 (4): 346–349, Bibcode: 2022MPBu...49..346P.

[1]

[2]

[3]

240 Vanadis

Topic: Astronomy

References

External links