2134 Dennispalm

2134 Dennispalm

Discovery [1]
Discovered by	C. Kowal
Discovery site	Palomar Obs.
Discovery date	24 December 1976
Designations
MPC designation	(2134) Dennispalm
Named after	C. Dennis Palm [2]
Alternative designations	1976 YB
Minor planet category	main-belt
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc	61.16 yr (22,337 days)
Aphelion	3.3111 AU
Perihelion	1.9594 AU
Semi-major axis	2.6353 AU
Eccentricity	0.2565
Orbital period (sidereal)	4.28 yr (1,563 days)
Mean anomaly	161.22°
Mean motion	0° 13m 49.44s / day
Inclination	31.367°
Longitude of ascending node	11.606°
Argument of perihelion	120.22°
Physical characteristics
Dimensions	6.007±0.257 [3]
Synodic rotation period	4.114  h (0.1714  d) [4] 5.2±0.7 [5]
Geometric albedo	0.339±0.037 [3]
Spectral type	Tholen = DSU: [1] [4] B–V = 0.936 [1]
Absolute magnitude (H)	13.1 [1]

2134 Dennispalm, provisional designation 1976 YB is a main-belt asteroid discovered on 24 December 1976, by Charles T. Kowal at Palomar Observatory. ^{[6] [7]}

Photometric observations made in 2003 at the Carbuncle Hill Observatory near Providence, Rhode Island, give a synodic rotation period of 4.114 ± 0.002 hours. The light curve shows a brightness variation of 0.37 ± 0.05 in magnitude. ^[7]

It is named in honor of C. Dennis Palm (1945–1974), who worked as a night assistant at Caltech's 48" Schmidt telescope on Palomar Mountain in the 1960s and later at Caltech's 60" reflecting telescope, also on Palomar. The official naming citation was published by the Minor Planet Center on 1 July 1979 ( M.P.C. 4788). ^{[2] [8]}

References

1. "JPL Small-Body Database Browser: 2134 Dennispalm (1976 YB)" (2017-06-04 last obs.). Jet Propulsion Laboratory . Retrieved 19 June 2017.
2. Schmadel, Lutz D. (2007). "(2134) Dennispalm". Dictionary of Minor Planet Names – (2134) Dennispalm. Springer Berlin Heidelberg. p. 173. doi:10.1007/978-3-540-29925-7_2135. ISBN   978-3-540-00238-3.
3. Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv: 1209.5794 . Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8 . Retrieved 19 June 2017.
4. "LCDB Data for (2134) Dennispalm". Asteroid Lightcurve Database (LCDB). Retrieved 19 June 2017.
5. Behrend, Raoul. "Asteroids and comets rotation curves – (2134) Dennispalm". Geneva Observatory . Retrieved 19 June 2017.
6. "2134 Dennispalm (1976 YB)". Minor Planet Center. Retrieved 19 June 2017.
7. Pray, Donald P. (March 2004), "Lightcurve analysis of asteroids 1225, 1301, 2134, 2741, and 3974", The Minor Planet Bulletin, 31 (1): 6–8, Bibcode:2004MPBu...31....6P.
8. Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) . Springer Berlin Heidelberg. p.  221. doi:10.1007/978-3-642-01965-4. ISBN   978-3-642-01964-7.

External links

• Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine )
• Dictionary of Minor Planet Names, Google books
• Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
• Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
• 2134 Dennispalm at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris  · Observation prediction  · Orbital info  · Proper elements  · Observational info
• 2134 Dennispalm at the JPL Small-Body Database
  • Close approach  · Discovery  · Ephemeris  · Orbit viewer  · Orbit parameters  · Physical parameters