HEBE was the sixth minor planet to be discovered on 1st July 1847 by Karl Ludwig Hencke - just 1½ years after his earlier discovery of 5 Astraea. The name of this main belt asteroid was first proposed by the mathematician Carl Friedrich Gauss.
HEBE DATADiscoverer : Karl Ludwig Hencke Date : 01 July 1847 Satellites : 1 ? Diameter : 205x185x170 km. Polar Tilt : 42° ? Period (P) : 3.78 years Synodic Period : 460.50 days Orbital Velocity : 18.93 km.s-1 Perihelion (q) : 1.937 A.U. Aphelion (Q) : 2.914 A.U. Eccentricity (e) : 0.202 Inclination (i) : 14.751° Mass : 1.4×1019 kg. Mean Density : 4.1 g.cm-3 Mean Distance : 2.426 AU or 3.629×108 km Sidereal Rotation : 7.275 hr. Mean Sidereal Rotation : 0.3031 d. Maximum Diameter : 0.261″ (arcsec) Minimum Diameter : 0.066″ (arcsec) Maximum Magnitude : 7.6 Minimum Magnitude : 11.5 |
Hebe is only a minor deity among the Greek gods, being the daughter of Zeus and Hera, Hebe was the celebrated server of the nectar of the Gods in Olympus. Her eternal beauty was always associated with young, especially towards the attributes of the vibrancy and purity of youth.
At the mean distance of 2.426 A.U. or 363 million kilometres, Hebe takes 3.78 years to orbit the Sun. During favourable oppositions, Hebe can be as close to the Earth as 0.94 A.U or receed to the maximum distance - opposite to the Sun - being 3.91 A.U. Hebe’s orbit is moderately well established with known small perturbations from mainly Ceres, Pallas and Vesta. Variations in Hebe’s real position cannot be determined very accurately at present, though the positions given in the ephemeris below are certainly precise enough to identify by amateurs. A mean magnitude is about 9.6, which varies between 7.6 and 11.5 magnitude. Hebe is therefore slightly brighter than 5 Astraea. More often than not, a small to medium telescopes is required to see this minor planet, though during favourable oppositions, it is readily visible in binoculars. The main orbit is inclined at 14.8° to the ecliptic.
Hebe remains quite small, though it is almost twice as big as Astraea. Its odd shaped dimensions are 205×185×170 kilometres - with mean diameter of 185.2 km., which suggests Hebe is slightly potato-shaped. From Earth, the diameter may vary anywhere between 0.066 and 0.261 arc seconds - too small for resolution by most amateurs.
Telescopically, Hebe appears as yellowish ‘star’. Hebe is reasonably reflective compared to other asteroids, being classed as an S-type asteroid and having an albedo of 0.268. It is thought this asteroid is composed of mainly chondrites, heavy silicates, and metals like nickel and iron, that has been obtained by spectral observations. The poorly established short prograde rotation period is about 07 hours 16 minutes.
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0h UT (J2000) Mag Δ r El. Con
DATE R.A. Decl. V A.U. A.U. o
hh mm.m o ′
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12 Jan 09 41.5 +10 50 09.5 1.644 2.527 147 Leo
26 Jan 09 30.9 +12 59 09.2 1.594 2.556 165 Leo
09 Feb 09 17.9 +15 23 08.9 1.598 2.584 177 Cnc
23 Feb 09 05.0 +17 38 09.4 1.661 2.612 160 Cnc
08 Mar 08 55.4 +19 25 09.7 1.776 2.638 143 Cnc
22 Mar 08 51.7 +20 37 10.1 1.932 2.663 128 Cnc
05 Apr 08 53.9 +21 15 10.4 2.117 2.688 114 Cnc
19 Apr 08 59.1 +21 24 10.6 2.320 2.711 102 Cnc
03 May 09 09.5 +21 09 10.8 2.529 2.733 091 Cnc
17 May 09 23.5 +20 34 11.0 2.738 2.754 080 Leo
31 May 09 38.7 +19 40 11.2 2.940 2.774 071 Leo
14 Jun 09 55.7 +18 32 11.3 3.131 2.792 061 Leo
28 Jun 10 13.2 +17 12 11.3 3.306 2.810 053 Leo
12 Jul 10 32.2 +15 41 11.4 3.463 2.826 044 Leo
26 Jul 10 52.4 +14 02 11.4 3.597 2.841 036 Leo
09 Aug 11 12.7 +12 17 11.4 3.708 2.854 028 Leo
23 Aug 11 32.1 +10 27 11.4 3.792 2.866 020 Leo
06 Sep 11 52.6 +08 36 11.3 3.849 2.877 013 Vir
20 Sep 12 14.0 +06 45 11.2 3.878 2.887 008 Vir
04 Oct 12 33.2 +04 56 11.3 3.877 2.895 010 Vir
18 Oct 12 53.2 +03 12 11.3 3.846 2.902 016 Vir
01 Nov 13 14.8 +01 35 11.4 3.786 2.907 024 Vir
15 Nov 13 34.7 +00 08 11.5 3.697 2.911 032 Vir
29 Nov 13 53.7 -01 07 11.5 3.581 2.914 041 Vir
13 Dec 14 12.3 -02 07 11.5 3.441 2.915 050 Vir
27 Dec 14 30.1 -02 49 11.4 3.279 2.915 060 Vir
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0h UT (J2000) Mag Δ r El. Con
DATE R.A. Decl. V A.U. A.U. o
hh mm.m o '
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10 Jan 14 47.5 -03 11 11.3 3.100 2.913 070 Lib
24 Jan 15 02.8 -03 11 11.2 2.908 2.911 080 Lib
07 Feb 15 14.3 -02 47 11.1 2.711 2.906 091 Ser
21 Feb 15 23.4 -01 58 10.9 2.515 2.901 103 Ser
07 Mar 15 29.6 -00 45 10.7 2.330 2.894 115 Ser
21 Mar 15 30.3 +00 49 10.5 2.165 2.886 128 Ser
04 Apr 15 26.7 +02 36 10.2 2.031 2.876 141 Ser
18 Apr 15 18.1 +04 22 10.0 1.938 2.865 152 Ser
02 May 15 06.8 +05 49 09.9 1.895 2.853 158 Vir
16 May 14 54.8 +06 42 09.9 1.903 2.839 153 Vir
30 May 14 42.2 +06 51 10.1 1.959 2.824 141 Vir
13 Jun 14 34.2 +06 17 10.3 2.056 2.808 129 Vir
27 Jun 14 31.3 +05 07 10.5 2.184 2.790 117 Vir
11 Jul 14 32.1 +03 30 10.7 2.330 2.771 105 Vir
25 Jul 14 37.1 +01 37 10.8 2.487 2.751 094 Vir
08 Aug 14 46.9 -00 26 10.9 2.646 2.730 084 Vir
22 Aug 14 59.0 -02 34 11.0 2.801 2.708 074 Lib
05 Sep 15 12.1 -04 42 11.1 2.947 2.684 065 Lib
19 Sep 15 29.1 -06 46 11.1 3.080 2.660 056 Lib
03 Oct 15 49.7 -08 43 11.1 3.196 2.634 048 Lib
17 Oct 16 10.6 -10 31 11.1 3.293 2.608 040 Sco
31 Oct 16 32.8 -12 07 11.0 3.368 2.580 032 Oph
14 Nov 16 56.9 -13 28 11.0 3.421 2.552 024 Oph
28 Nov 17 21.8 -14 32 10.9 3.450 2.523 017 Ser
12 Dec 17 47.3 -15 19 10.7 3.454 2.493 011 Ser
26 Dec 18 15.0 -15 47 10.6 3.434 2.463 008 Ser
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0h UT (J2000) Mag Δ r El. Con
DATE R.A. Decl. V A.U. A.U. o
hh mm.m o ′
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09 Jan 18 42.8 -15 54 10.6 3.390 2.432 011 Sgr
23 Jan 19 09.5 -15 42 10.7 3.323 2.400 017 Sgr
06 Feb 19 37.8 -15 12 10.7 3.234 2.369 024 Sgr
20 Feb 20 05.8 -14 24 10.7 3.125 2.337 031 Sgr
06 Mar 20 32.2 -13 22 10.7 2.998 2.305 038 Cap
20 Mar 21 00.0 -12 08 10.6 2.855 2.273 046 Aqr
03 Apr 21 27.0 -10 45 10.5 2.700 2.241 053 Aqr
17 Apr 21 51.1 -09 18 10.4 2.534 2.210 060 Cap
01 May 22 16.2 -07 51 10.3 2.360 2.179 067 Aqr
15 May 22 41.0 -06 30 10.2 2.182 2.150 075 Aqr
29 May 23 04.1 -05 20 10.0 2.001 2.121 082 Aqr
12 Jun 23 26.8 -04 30 09.8 1.821 2.094 091 Aqr
26 Jun 23 46.3 -04 06 09.5 1.646 2.068 099 Aqr
10 Jul 00 03.7 -04 20 09.2 1.479 2.043 108 Psc
24 Jul 00 18.7 -05 20 08.9 1.326 2.021 119 Psc
07 Aug 00 28.9 -07 16 08.6 1.191 2.001 130 Cet
21 Aug 00 33.8 -10 09 08.2 1.083 1.983 142 Cet
04 Sep 00 32.0 -13 46 07.9 1.010 1.967 154 Cet
18 Sep 00 26.2 -17 29 07.7 0.977 1.955 161 Cet
02 Oct 00 18.6 -20 32 07.8 0.989 1.945 156 Cet
16 Oct 00 10.9 -22 15 08.1 1.040 1.939 144 Cet
30 Oct 00 06.0 -22 29 08.4 1.125 1.935 132 Cet
13 Nov 00 08.9 -21 26 08.7 1.236 1.934 120 Cet
27 Nov 00 17.8 -19 25 08.9 1.364 1.937 110 Cet
11 Dec 00 29.5 -16 44 09.2 1.504 1.943 101 Cet
25 Dec 00 46.5 -13 38 09.4 1.651 1.952 092 Cet
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0h UT (J2000) Mag Δ r El. Con
DATE R.A. Decl. V A.U. A.U. o
hh mm.m o ′
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08 Jan 01 06.3 -10 16 09.6 1.803 1.963 084 Cet
22 Jan 01 28.5 -06 48 09.8 1.957 1.978 077 Cet
05 Feb 01 52.8 -03 19 09.9 2.111 1.995 070 Cet
19 Feb 02 17.2 +00 03 10.1 2.262 2.014 063 Cet
05 Mar 02 43.4 +03 16 10.2 2.411 2.036 056 Cet
19 Mar 03 11.2 +06 14 10.3 2.553 2.060 050 Cet
02 Apr 03 39.6 +08 53 10.3 2.689 2.085 044 Tau
16 Apr 04 08.3 +11 12 10.4 2.816 2.112 038 Tau
30 Apr 04 37.1 +13 08 10.4 2.933 2.141 032 Tau
14 May 05 07.8 +14 40 10.4 3.038 2.170 026 Ori
28 May 05 37.1 +15 48 10.4 3.129 2.200 020 Tau
11 Jun 06 06.0 +16 31 10.4 3.205 2.231 014 Ori
25 Jun 06 36.2 +16 51 10.4 3.263 2.263 008 Gem
09 Jul 07 05.6 +16 48 10.4 3.304 2.295 006 Gem
23 Jul 07 33.9 +16 26 10.5 3.324 2.326 009 Gem
06 Aug 08 00.2 +15 47 10.6 3.324 2.358 015 Cnc
20 Aug 08 26.3 +14 54 10.7 3.302 2.390 022 Cnc
03 Sep 08 53.0 +13 50 10.8 3.257 2.422 029 Cnc
17 Sep 09 16.2 +12 39 10.9 3.190 2.453 036 Cnc
01 Oct 09 38.7 +11 24 10.9 3.100 2.483 044 Leo
15 Oct 10 00.2 +10 10 10.9 2.989 2.513 053 Leo
29 Oct 10 19.3 +09 01 10.9 2.858 2.543 062 Leo
12 Nov 10 37.5 +08 03 10.9 2.710 2.571 071 Leo
26 Nov 10 52.1 +07 22 10.8 2.549 2.599 082 Leo
10 Dec 11 04.4 +07 04 10.6 2.382 2.626 093 Leo
24 Dec 11 13.8 +07 16 10.5 2.215 2.652 105 Leo
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0h UT (J2000) Mag Δ r El. Con
DATE R.A. Decl. V A.U. A.U. o
hh mm.m o ′
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07 Jan 11 17.1 +08 04 10.3 2.058 2.676 119 Leo
21 Jan 11 16.2 +09 31 10.0 1.924 2.700 134 Leo
04 Feb 11 11.9 +11 34 09.8 1.825 2.723 150 Leo
18 Feb 11 01.2 +13 58 09.5 1.776 2.744 166 Leo
03 Mar 10 48.4 +16 21 09.5 1.783 2.765 170 Leo
17 Mar 10 37.0 +18 19 09.8 1.847 2.784 156 Leo
31 Mar 10 28.5 +19 37 10.1 1.963 2.802 140 Leo
14 Apr 10 24.3 +20 13 10.4 2.117 2.819 125 Leo
28 Apr 10 24.8 +20 11 10.7 2.298 2.834 112 Leo
12 May 10 29.1 +19 39 10.9 2.494 2.848 100 Leo
26 May 10 37.7 +18 44 11.1 2.696 2.861 089 Leo
09 Jun 10 49.9 +17 31 11.2 2.896 2.872 079 Leo
23 Jun 11 02.5 +16 04 11.3 3.088 2.882 069 Leo
07 Jul 11 18.0 +14 26 11.4 3.266 2.891 060 Leo
21 Jul 11 34.3 +12 39 11.5 3.428 2.899 051 Leo
04 Aug 11 51.3 +10 46 11.5 3.569 2.905 043 Leo
18 Aug 12 10.7 +08 50 11.5 3.687 2.909 034 Vir
01 Sep 12 29.6 +06 52 11.5 3.780 2.913 027 Vir
15 Sep 12 48.8 +04 54 11.4 3.847 2.915 019 Vir
29 Sep 13 08.3 +02 58 11.3 3.884 2.915 013 Vir
13 Oct 13 28.9 +01 07 11.3 3.893 2.915 010 Vir
27 Oct 13 49.6 -00 37 11.3 3.872 2.912 013 Vir
10 Nov 14 09.0 -02 12 11.4 3.822 2.909 020 Vir
24 Nov 14 30.1 -03 35 11.4 3.742 2.904 028 Vir
08 Dec 14 51.5 -04 46 11.5 3.635 2.898 036 Lib
22 Dec 15 11.8 -05 40 11.4 3.503 2.890 045 Lib
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0h UT (J2000) Mag Δ r El. Con
DATE R.A. Decl. V A.U. A.U. o
hh mm.m o ′
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05 Jan 15 30.6 -06 18 11.4 3.348 2.881 054 Lib
19 Jan 15 48.5 -06 37 11.3 3.173 2.871 063 Lib
02 Feb 16 05.6 -06 36 11.2 2.984 2.859 073 Oph
16 Feb 16 20.5 -06 14 11.1 2.785 2.846 083 Oph
02 Mar 16 32.2 -05 33 10.9 2.583 2.832 094 Oph
16 Mar 16 41.2 -04 33 10.7 2.384 2.816 105 Oph
30 Mar 16 46.2 -03 18 10.5 2.197 2.799 117 Oph
13 Apr 16 46.6 -01 53 10.2 2.031 2.781 130 Oph
27 Apr 16 42.0 -00 28 10.0 1.897 2.762 142 Oph
11 May 16 31.8 +00 43 09.7 1.803 2.741 153 Oph
25 May 16 18.5 +01 27 09.6 1.756 2.720 157 Ser
08 Jun 16 05.2 +01 32 09.7 1.760 2.697 152 Ser
22 Jun 15 54.8 +00 55 09.8 1.811 2.673 140 Ser
06 Jul 15 47.4 -00 19 10.0 1.900 2.648 128 Ser
20 Jul 15 44.5 -01 59 10.2 2.018 2.622 116 Ser
03 Aug 15 47.7 -03 56 10.4 2.154 2.595 104 Lib
17 Aug 15 54.4 -06 01 10.6 2.300 2.567 093 Lib
31 Aug 16 05.2 -08 07 10.7 2.448 2.539 083 Oph
14 Sep 16 20.5 -10 10 10.7 2.593 2.509 074 Sco
28 Sep 16 38.2 -12 04 10.8 2.729 2.479 065 Oph
12 Oct 16 58.8 -13 46 10.8 2.853 2.449 057 Oph
26 Oct 17 21.1 -15 14 10.8 2.962 2.418 048 Ser
09 Nov 17 45.7 -16 25 10.8 3.054 2.386 040 Sgr
23 Nov 18 12.4 -17 16 10.7 3.126 2.354 033 Sgr
07 Dec 18 39.8 -17 46 10.6 3.178 2.323 025 Sgr
21 Dec 19 08.8 -17 54 10.5 3.209 2.291 018 Sgr
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0h UT (J2000) Mag Δ r El. Con
DATE R.A. Decl. V A.U. A.U. o
hh mm.m o ′
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04 Jan 19 37.0 -17 38 10.4 3.219 2.259 010 Sgr
18 Jan 20 07.4 -17 01 10.2 3.208 2.228 004 Sgr
01 Feb 20 38.7 -16 03 10.2 3.177 2.197 005 Cap
15 Feb 21 08.9 -14 46 10.2 3.127 2.167 011 Cap
01 Mar 21 38.9 -13 13 10.3 3.060 2.138 018 Cap
15 Mar 22 08.8 -11 27 10.3 2.977 2.110 024 Aqr
29 Mar 22 38.5 -09 31 10.3 2.881 2.083 031 Aqr
12 Apr 23 08.1 -07 29 10.3 2.772 2.058 037 Aqr
26 Apr 23 38.6 -05 26 10.3 2.654 2.035 043 Aqr
10 May 00 08.9 -03 27 10.2 2.528 2.014 049 Psc
24 May 00 37.8 -01 35 10.1 2.396 1.995 055 Cet
07 Jun 01 06.2 +00 05 10.0 2.260 1.978 061 Cet
21 Jun 01 35.6 +01 27 09.9 2.122 1.964 067 Cet
05 Jul 02 04.4 +02 26 09.8 1.983 1.953 073 Cet
19 Jul 02 31.0 +02 59 09.7 1.844 1.944 080 Cet
02 Aug 02 57.4 +03 00 09.5 1.707 1.939 087 Cet
16 Aug 03 21.4 +02 28 09.3 1.575 1.937 094 Cet
30 Aug 03 41.8 +01 21 09.1 1.448 1.938 103 Tau
13 Sep 03 57.4 -00 20 08.9 1.331 1.942 112 Eri
27 Sep 04 07.9 -02 28 08.7 1.228 1.949 121 Eri
11 Oct 04 11.2 -04 49 08.4 1.144 1.959 132 Eri
25 Oct 04 07.4 -07 00 08.2 1.088 1.972 142 Eri
08 Nov 03 58.7 -08 30 08.1 1.065 1.987 150 Eri
22 Nov 03 45.5 -08 51 08.1 1.083 2.005 151 Eri
06 Dec 03 33.0 -07 53 08.3 1.141 2.025 144 Eri
20 Dec 03 26.0 -05 50 08.6 1.237 2.048 134 Eri
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************************ Opposition Conjunction ************************ 05 Aug 2006 26 May 2007 07 Feb 2008 25 Sep 2008 02 May 2009 25 Dec 2009 23 Sep 2010 07 Jul 2011 28 Feb 2012 13 Oct 2012 24 May 2013 24 Jan 2014 17 Nov 2014 05 Aug 2015 17 Mar 2016 31 Oct 2016 18 Jun 2017 06 Mar 2018 29 Dec 2018 28 Aug 2019 04 Apr 2020 20 Nov 2020 *************************
The user applying this data for any purpose forgoes any liability against the author. None of the information should be used for either legal or medical purposes. Although the data is accurate as possible some errors might be present. The onus of its use is place solely with the user.