69230 Hermes help
Last update: 2025-07-21 10:30 UTC
Physical properties
  • Rotation Period
  • Quality
  • Amplitude
  • Rotation Direction
  • Spinvector L
  • Spinvector B
Rotational properties
Value
Unit
Source
Rotation Period
Value
13.89
Unit
h
Source
[6]
Quality
Value
3,B,R
Unit
-
Source
[6]
Amplitude
Value
0.06
Unit
mag
Source
[6]
Rotation Direction
Value
-
Unit
-
Source
[-]
Spinvector L
Value
-
Unit
Source
[-]
Spinvector B
Value
-
Unit
Source
[-]
  • Taxonomy
  • Taxonomy (all)
Taxonomy
Value
Unit
Source
Taxonomy
Value
Scomp
Sq
V
Unit
-
-
-
Source
[1]
[2]
[3]
Taxonomy (all)
Value
-
S;Sq
-
Unit
-
-
-
Source
[4]
[5]
[4]
  • Absolute Magnitude (H)
  • Slope Parameter (G)
H / G
Value
Unit
Source
Absolute Magnitude (H)
Value
17.604
17.57
Unit
mag
mag
Source
[7]
[8]
Slope Parameter (G)
Value
0.15
0.15**
Unit
mag
mag
Source
[8]
[7]
  • Albedo
  • Diameter
Size and albedo
Value
Unit
Source
Albedo
Value
0.265
0.265
Unit
-
-
Source
[9]
[10]
Diameter
Value
820
Unit
Source
[9]
  • Color Index Information
Color Index Information
Value
Unit
Source
Color Index Information
Value
-
Unit
mag
Source
[-]
  • Sightings
Sightings
Value
Unit
Source
Sightings
Value
Radar R
Visual S
Unit
-
-
Source
[11]
[12]
  • Satellites
Satellites
Value
Unit
Source
Satellites
Unit
-
Source
[4]

Sources

No.NameAdditional
No.[1]NameEARNAdditional1.) Michaël Marsset et al 2022 AJ 163 165
No.[2]NameEARNAdditional1.) Thomas, C.A. et al. (2014) Icarus 228, 217-246. (Physical
characterization of Warm Spitzer-observed near-Earth
objects)
No.[3]NameEARNAdditional1.) Alexey V. Sergeyev and Benoit Carry A&A, 652 (2021) A59
No.[4]NameEARNAdditionalEarth Asteroids Research Node: https://earn.dlr.de
No.[5]NameEARNAdditional1.) Rivkin, A.S. & R.P. Binzel (2003) I.A.U. Circ. HREF="http://www.cbat.eps.harvard.edu/iauc/08200/08225.html">
8225.
(1937 UB Hermes) (spectroscopy - taxonomy)
2.) Thomas, C.A. et al. (2014) Icarus 228, 217-246. (Physical
characterization of Warm Spitzer-observed near-Earth
objects)
No.[6]NameEARNAdditional1.) Pravec, P. et al. (2006) Icarus 181, 63-93. (Photometric
survey of binary near-Earth asteroids)
2.) Petr
Pravec's Ondrejov NEO Photometric Program Webpage
"Prepublished Periods"

3.) Pravec, P. et al. (2003) I.A.U. Circ. HREF="http://www.cbat.eps.harvard.edu/iauc/08200/08233.html">
8233.
(1937 UB Hermes) (photometry lightcurve
rotation period)
4.) Margot, J.L. et al. (2003) I.A.U. Circ. HREF="http://www.cbat.eps.harvard.edu/iauc/08200/08227.html">
8227.
(1937 UB Hermes) (radar obs. binary asteroid)
5.) R.
Behrend Courbes des lumiere, Observatoire de Geneve
website
No.[7]NameESA AegisAdditionalESA orbit determination and impact monitoring system
No.[8]NameEARNAdditional1.) Pravec, P. et al. (2012) Icarus 221, 365-387 (Absolute
magnitudes of asteroids and a revision of asteroid albedo
estimates from WISE thermal observations)
No.[9]NameEARNAdditional1.) Joseph R. Masiero et al 2020 Planet. Sci. J. 1 5
No.[10]NameEARNAdditional1.) Marchis, F.; Enriquez, J.E.; Emery, J.P.; Mueller, M.; et
al. (2012) Icarus 221, 1130-1161.
No.[11]NameEARNAdditional1.) href="http://echo.jpl.nasa.gov/asteroids/index.html">JPL's
NEO Radar Detection Program Webpage

2.) Margot, J.L. et al. (2003) I.A.U. Circ. HREF="http://www.cbat.eps.harvard.edu/iauc/08200/08227.html">
8227.
(1937 UB Hermes) (radar obs. binary asteroid)
No.[12]NameEARNAdditional1.) Rivkin, A.S. & R.P. Binzel (2003) I.A.U. Circ. HREF="http://www.cbat.eps.harvard.edu/iauc/08200/08225.html">
8225.
(1937 UB Hermes) (spectroscopy - taxonomy)
2.) Rivkin, A.S. et al. (2004) Icarus 172, 408-414. (Infrared
spectroscopic observations of 69230 Hermes ..)