Ephemeris predictions for twelve irregular Saturnians

Updated 23 October 2001 to include all observations to date.

As of 23 October 2001, all twelve irregulars have been recovered.

Click here to see a perspective rendering of the orbits as seen from an angle just above the ecliptic, or you can click here to see the orbits as seen from directly above the ecliptic. The orbits of Titan and Japetus, the largest of the "inner", regular satellites, have been added to make the scale a little more apparent.

  • Copyright information
  • Orbits at a glance
  • Orbits at a glance, sorted by period
  • Mean orbital elements (JPL)
  • Sizes and Discovery Data (JPL)
  • Other orbit solutions from JPL and MPC
  • Similar data for irregular satellites of Uranus
  • Similar data for irregular satellites of Jupiter
  • Phoebe elements
  • S/2000 S 1 elements and residuals
  • S/2000 S 2 elements and residuals
  • S/2000 S 3 elements and residuals
  • S/2000 S 4 elements and residuals
  • S/2000 S 5 elements and residuals
  • S/2000 S 6 elements and residuals
  • S/2000 S 7 elements and residuals
  • S/2000 S 8 elements and residuals
  • S/2000 S 9 elements and residuals
  • S/2000 S 10 elements and residuals
  • S/2000 S 11 elements and residuals
  • S/2000 S 12 elements and residuals
  • Saturn satellites home page
  • Raw astrometric data
  • IAUC 7512 announcing discovery of satellites 1 & 2
  • IAUC 7513 announcing discovery of satellites 3 & 4
  • IAUC 7521 announcing discovery of satellites 5 & 6
  • IAUC 7538 announcing discovery of satellites 7, 8, 9
  • IAUC 7539 announcing discovery of satellite 10
  • IAUC 7545 announcing discovery of satellite 11
  • IAUC 7548 announcing discovery of satellite 12
  • MPEC 2000-Y13: astrometry, orbit for S/2000 S 11
  • MPEC 2000-Y14: S/2000 S 3, 4, 5, 6, and 10
  • MPEC 2000-Y15: S/2000 S 1, 2, 7, 8, and 9
  • MPEC 2000-Y33: S/2000 S 12
  • MPEC 2001-T06: S/2000 S 1, S/2000 S 2, S/2000 S 4, S/2000 S 6, S/2000 S 12
  • MPEC 2001-T07: S/2000 S 5, S/2000 S 9, S/2000 S 11
  • MPEC 2001-T23: S/2000 S 8, S/2000 S 10
  • MPEC 2001-U42: S/2000 S 3
  •  
    
    Orbits at a glance:

    The four orbital groups are color-coded.

                    Incl  Node    Peri   ecc    a    q     P       H   dia*   Arc
                   (deg)  (deg)  (deg)        (AU)  (AU)  (yrs)  (mag) (km)
    
    Phoebe         173.2  263.0  352.1  .175  .086  .071  1.49    6.9  240   1904-1999   
    S/2000 S 1     172.8  206.5   39.6  .363  .153  .097  3.53   11.9   20  7 Aug 00-20 Sep 01 
    S/2000 S 2      46.1  351.9  239.6  .458  .101  .055  1.89   11.5   25  7 Aug 00-19 Sep 01 
    S/2000 S 3      48.6   63.7   63.9  .361  .119  .076  2.42   10.2   45 23 Sep 00-22 Oct 01 
    S/2000 S 4      34.9   94.5  284.8  .634  .119  .044  2.44   12.5   16 23 Sep 00-10 Sep 01 
    S/2000 S 5      48.4  352.1   91.8  .160  .076  .064  1.23   12.3   17  7 Aug 00-24 Aug 01 
    S/2000 S 6      49.4  151.4   70.5  .367  .076  .048  1.24   12.8   14 23 Sep 00-19 Sep 01 
    S/2000 S 7     174.9  246.4   88.6  .557  .134  .059  2.91   14.0    7 23 Sep 00-20 Sep 01 
    S/2000 S 8     148.6  285.3  210.6  .215  .104  .082  1.98   13.8    8 23 Sep 00-20 Sep 01 
    S/2000 S 9     169.7   79.6  295.8  .229  .126  .097  2.64   14.1    7 23 Sep 00-19 Sep 01 
    S/2000 S 10     33.7  142.8  284.8  .612  .119  .046  2.42   13.3   10 23 Sep 00-19 Sep 01 
    S/2000 S 11     37.2  110.2   60.2  .472  .109  .058  2.13   10.9   30  9 Nov 00-23 Oct 01 
    S/2000 S 12    174.7  253.2   76.2  .109  .132  .117  2.83   14.0    7 23 Sep 00-19 Sep 01 
                    Incl  Node    Peri   ecc    a    q     P       H   dia*   Arc
    

    Magnitude at opposition = H + 9.5 (roughly).

    * Diameters assumes a 5% albedo, like that of Phoebe.

     
    Orbits at a glance (sorted by orbital period): 
    

    The four orbital groups are color-coded.

                    Incl  Node    Peri   ecc    a    q     P       H   dia*   Arc
                   (deg)  (deg)  (deg)        (AU)  (AU)  (yrs)  (mag) (km)
    
    S/2000 S 5      48.4  352.1   91.8  .160  .076  .064  1.23   12.3   17  7 Aug 00-24 Aug 01 
    S/2000 S 6      49.4  151.4   70.5  .367  .076  .048  1.24   12.8   14 23 Sep 00-19 Sep 01 
    Phoebe         173.2  263.0  352.1  .175  .086  .071  1.49    6.9  240   1904-1999   
    S/2000 S 2      46.1  351.9  239.6  .458  .101  .055  1.89   11.5   25  7 Aug 00-19 Sep 01 
    S/2000 S 8     148.6  285.3  210.6  .215  .104  .082  1.98   13.8    8 23 Sep 00-20 Sep 01 
    S/2000 S 11     37.2  110.2   60.2  .472  .109  .058  2.13   10.9   30  9 Nov 00-23 Oct 01 
    S/2000 S 3      48.6   63.7   63.9  .361  .119  .076  2.42   10.2   45 23 Sep 00-22 Oct 01 
    S/2000 S 10     33.7  142.8  284.8  .612  .119  .046  2.42   13.3   10 23 Sep 00-19 Sep 01 
    S/2000 S 4      34.9   94.5  284.8  .634  .119  .044  2.44   12.5   16 23 Sep 00-10 Sep 01 
    S/2000 S 9     169.7   79.6  295.8  .229  .126  .097  2.64   14.1    7 23 Sep 00-19 Sep 01 
    S/2000 S 12    174.7  253.2   76.2  .109  .132  .117  2.83   14.0    7 23 Sep 00-19 Sep 01 
    S/2000 S 7     174.9  246.4   88.6  .557  .134  .059  2.91   14.0    7 23 Sep 00-20 Sep 01 
    S/2000 S 1     172.8  206.5   39.6  .363  .153  .097  3.53   11.9   20  7 Aug 00-20 Sep 01 
                    Incl  Node    Peri   ecc    a    q     P       H   dia*   Arc
    
    Phoebe: Orbital elements: Phoebe Perisaturn 1998 Mar 31.289181 TT Epoch 1998 Nov 23.0 TT = JDT 2451140.5 M 156.25658 (2000.0) P Q n 0.66011592 Peri. 352.11436 0.01501173 -0.99298339 a 0.0860563 Node 263.02917 -0.91080908 -0.06198238 e 0.1747925 Incl. 173.21346 -0.41255481 0.10070835 P 1.49 q 0.0710143 From 62 observations 1998 Aug. 20-2000 Jan. 13; RMS error 0.417 arcseconds
    S/2000 S 1: Orbital elements: S/2000 S 1 Perisaturn 2001 May 4.605516 TT Epoch 2001 Apr 1.0 TT = JDT 2452000.5 M 350.61601 (2000.0) P Q n 0.27923928 Peri. 39.66755 -0.97147072 0.23043663 a 0.1527153 Node 206.50499 0.17287115 0.84990170 e 0.3638125 Incl. 172.78259 0.16235821 0.47388400 P 3.53 H 12.0 G 0.15 q 0.0971556 From 21 observations 2000 Aug. 7-2001 Aug. 21; RMS error 0.211 arcseconds Residuals in arcseconds: 000807 809 .03- .04+ 000924 568 .03- .04- 000929 809 .10- .28+ 000807 809 .18- .15- 000924 568 .01- .07- 001102 695 .01+ .04- 000807 809 .08+ .08+ 000927 693 .15- .07- 001102 695 .11- .02- 000923 568 .04+ .00 000927 693 .22+ .01- 001103 695 .07- .17- 000923 568 .11+ .02+ 000927 693 .18+ .11+ 001103 695 .03- .14- 000923 568 .22+ .04- 000929 809 .03- .18+ 010821 493 .15+ .25- 000924 568 .01- .01+ 000929 809 .14- .23+ 010821 493 .20- .54+
    S/2000 S 2: Orbital elements: S/2000 S 2 Perisaturn 2002 Mar 8.150904 TT Epoch 2001 Apr 1.0 TT = JDT 2452000.5 M 182.47131 (2000.0) P Q n 0.52038170 Peri. 239.67729 -0.58423476 0.80522357 a 0.1008445 Node 351.90170 -0.23176655 -0.28528784 e 0.4575043 Incl. 46.04627 -0.77778788 -0.51983250 P 1.89 H 11.4 G 0.15 q 0.0547077 From 32 observations 2000 Aug. 7-2001 Sep. 19; RMS error 0.387 arcseconds Residuals in arcseconds: 000807 809 .02- .01- 001023 675 .02+ .17- 010215 950 .23+ .09+ 000807 809 .15- .01+ 001102 695 .08+ .24- 010215 950 .16+ .00 000807 809 .32- .14- 001102 695 .02- .16+ 010820 493 .72+ .38+ 000923 568 .19+ .07+ 001102 695 .33- .34- 010820 493 .29+ .52+ 000923 568 .16+ .02+ 001102 695 .20- .13- 010824 568 .35+ .16+ 000923 568 .19+ .03+ 001103 695 .05+ .28+ 010824 568 .19+ .01- 000924 568 .19+ .10+ 001103 695 .15+ .06+ 010824 568 .48+ .08+ 000924 568 .15+ .10+ 001124 809 .43- .04- 010919 675 .87- .27- 000924 568 .12+ .13+ 001124 809 .19- .01- 010919 675 .59- .39- 001023 675 .15- .13- 001124 809 .34- .02- 010919 675 .67- .36- 001023 675 .27+ .11- 010215 950 .15+ .13+
    S/2000 S 3: Orbital elements: S/2000 S 3 Perisaturn 2001 Feb 11.026089 TT Epoch 2001 Apr 1.0 TT = JDT 2452000.5 M 19.90034 (2000.0) P Q n 0.40634578 Peri. 63.95706 -0.33836834 -0.65798326 a 0.1189240 Node 63.72906 0.33433096 -0.75231636 e 0.3614320 Incl. 48.60932 0.87961904 0.03283460 P 2.43 H 10.2 G 0.15 q 0.0759411 From 24 observations 2000 Sep. 23-2001 Oct. 22; RMS error 0.368 arcseconds Residuals in arcseconds: 000923 568 .02+ .16+ 001216 695 .10- .30- 010215 950 .84- .30- 000923 568 .29- .18+ 001216 695 .02- .25- 011017 696 .07- .07+ 000923 568 .29- .11+ 001216 695 .04+ .11- 011017 696 .19- .19+ 000924 568 .01+ .21+ 001217 695 .02+ .13+ 011017 696 .10+ .07+ 000924 568 .11- .20+ 010119 675 .06+ .25+ 011020 696 .26- .03+ 000924 568 .20- .20+ 010119 675 .25+ .27+ 011020 696 .01+ .01- 000925 697 .68+ .14- 010119 675 .09+ .21+ 011022 696 .08+ .11+ 000925 697 .27- .18- 010215 950 .86- .29- 011022 696 .05- .06+
    S/2000 S 4: Orbital elements: S/2000 S 4 Perisaturn 2000 Oct 3.934845 TT Epoch 2001 Apr 1.0 TT = JDT 2452000.5 M 72.42050 (2000.0) P Q n 0.40443658 Peri. 284.82611 0.77035477 -0.28436350 a 0.1192980 Node 94.46055 0.51073792 0.81101338 e 0.6342525 Incl. 34.91965 -0.38170708 0.51126772 P 2.44 H 12.5 G 0.15 q 0.0436330 From 29 observations 2000 Sep. 23-2001 Sep. 19; RMS error 0.368 arcseconds Residuals in arcseconds: 000923 568 .21- .29+ 001127 675 .02- .03- 010121 675 .23- .15- 000923 568 .06- .21+ 001127 675 .20+ .11- 010218 950 .48- .02+ 000923 568 .03- .24+ 001216 695 .33+ .00 010218 950 .32- .12+ 000924 568 .26- .21+ 001216 695 .21- .11+ 010822 493 .16- .45- 000924 568 .22- .21+ 001216 695 .05- .31+ 010822 493 .21- .15+ 000924 568 .14- .23+ 001217 695 .24+ .20+ 010822 493 .43- .05+ 000927 693 .42+ .31- 001218 695 .10- .10- 010822 493 .05+ .14+ 000927 693 .61+ .23- 001218 695 .35- .32- 010919 675 .47+ .03+ 000927 693 .36+ .05+ 001218 695 .13- .34- 010919 675 .47+ .04- 001127 675 .42+ .41- 010121 675 .27- .07-
    S/2000 S 5: Orbital elements: S/2000 S 5 Perisaturn 2000 Aug 25.936882 TT Epoch 2001 Apr 1.0 TT = JDT 2452000.5 M 174.61372 (2000.0) P Q n 0.80074854 Peri. 91.80363 0.06013805 -0.99286489 a 0.0756605 Node 352.08781 0.30938647 0.11661633 e 0.1595656 Incl. 48.41953 0.94903288 0.02489844 P 1.23 H 12.3 G 0.15 q 0.0635877 From 29 observations 2000 Aug. 7-2001 Aug. 24; RMS error 0.360 arcseconds Residuals in arcseconds: 000807 809 .09+ .08+ 001103 695 .14+ .01+ 001216 695 .36- .47+ 000807 809 .28+ .12- 001104 309 .04+ .19- 001216 695 .26- .55+ 000807 809 .08+ .20- 001104 309 .00 .12- 001218 695 .09+ .39- 000924 568 .22- .15+ 001124 809 .08+ .14+ 001218 695 .12- .71- 000924 568 .38- .28+ 001124 809 .10- .03+ 010821 493 .34+ .11- 000924 568 .45- .23+ 001124 809 .28+ .09+ 010821 493 .17- .66+ 001102 695 .06+ .01+ 001128 675 .11+ .09- 010824 568 .27- .20- 001102 695 .23+ .18- 001128 675 .08+ .05- 010824 568 .18- .27- 001102 695 .43+ .13+ 001128 675 .14+ .04- 010824 568 .42+ .15- 001103 695 .24+ .10- 001216 695 .12- .14+
    S/2000 S 6: Orbital elements: S/2000 S 6 Perisaturn 2001 Feb 21.502871 TT Epoch 2001 Apr 1.0 TT = JDT 2452000.5 M 30.71966 (2000.0) P Q n 0.79797288 Peri. 70.52255 -0.58693061 0.72340947 a 0.0758359 Node 151.36787 -0.63247978 -0.69002216 e 0.3665335 Incl. 49.35415 0.50545204 -0.02341250 P 1.24 H 12.8 G 0.15 q 0.0480395 From 33 observations 2000 Sep. 23-2001 Sep. 19; RMS error 0.584 arcseconds Residuals in arcseconds: 000923 568 .31+ .40- 001103 695 .08- .01+ 010121 675 .17+ .09+ 000923 568 .29+ .20- 001104 309 .45- .05+ 010121 675 .26+ .25+ 000923 568 .28+ .49- 001104 309 .33- .08+ 010121 675 .04- .11+ 000923 568 .15+ .60- 001124 809 .23- .11+ 010121 675 .12- .14- 000924 568 .46+ .23- 001124 809 .56- .18+ 010824 568 .81+ .39- 000924 568 .28+ .28- 001124 809 .38- .04+ 010824 568 .80+ .38- 000924 568 .18+ .34- 001216 695 .01- .58+ 010824 568 .64+ .17- 001102 695 .25- .14+ 001216 695 .34- .85+ 010918 675 .64- 1.0+ 001102 695 .09- .11+ 001218 695 .18+ .25- 010918 675 .72- .91+ 001102 695 .09- .20+ 001218 695 .15+ .42- 010918 675 .82- .80+ 001103 695 .27- .14+ 001218 695 .30+ .55- 010919 675 .47+ .01-
    S/2000 S 7: Orbital elements: S/2000 S 7 Perisaturn 2000 Feb 9.331449 TT Epoch 2001 Apr 1.0 TT = JDT 2452000.5 M 141.50514 (2000.0) P Q n 0.33961081 Peri. 88.59202 -0.92243993 0.37749813 a 0.1340332 Node 246.41871 0.30957343 0.84872916 e 0.5583445 Incl. 174.91458 0.23080047 0.37034303 P 2.90 H 14.0 G 0.15 q 0.0591965 From 20 observations 2000 Sep. 23-2001 Nov. 15; RMS error 0.360 arcseconds Residuals in arcseconds: 000923 568 .02+ .01- 001104 309 .19+ .07+ 010920 675 .20- .88- 000923 568 .04- .22+ 001127 675 .05- .27+ 011114 309 .07+ .21+ 000923 568 .19- .15+ 001127 675 .14+ .08+ 011114 309 .26+ .20+ 000924 568 .17- .24- 010224 309 .51- .19- 011114 309 .01+ .14+ 000924 568 .17+ .11- 010224 309 .07+ .09+ 011114 309 .40+ .32+ 000924 568 .05+ .17- 010920 675 .35- .27- 011115 309 .16- .38+ 001104 309 .18+ .06+ 010920 675 .24- .40-
    S/2000 S 8: Orbital elements: S/2000 S 8 Perisaturn 2001 May 21.705474 TT Epoch 2001 Apr 1.0 TT = JDT 2452000.5 M 334.79572 (2000.0) P Q n 0.49707199 Peri. 210.54573 0.19228338 0.84270775 a 0.1039730 Node 285.22955 0.97230497 -0.09422769 e 0.2146852 Incl. 148.58955 0.13285382 -0.53006110 P 1.98 H 13.8 G 0.15 q 0.0816516 From 18 observations 2000 Sep. 23-2001 Sep. 20; RMS error 0.405 arcseconds Residuals in arcseconds: 000923 568 .09+ .10- 001104 309 .03+ .05- 001218 695 .02+ .15- 000923 568 .21- .09- 001104 309 .04+ .03+ 010919 675 .47+ 1.2- 000923 568 .24- .11- 001127 675 .10+ .01- 010920 675 .03- .25+ 000924 568 .11+ .17+ 001127 675 .26+ .26- 010920 675 .42- .57+ 000924 568 .13+ .06+ 001218 695 .15- .22+ 010920 675 .16+ .23+ 000924 568 .03- .12+ 001218 695 .14- .25+ 010920 675 .22- .16+
    S/2000 S 9: Orbital elements: S/2000 S 9 Perisaturn 2001 Oct 28.256024 TT Epoch 2001 Apr 1.0 TT = JDT 2452000.5 M 281.46848 (2000.0) P Q n 0.37350425 Peri. 295.62079 -0.79678184 0.57813463 a 0.1257969 Node 79.81942 0.59841043 0.71453230 e 0.2280940 Incl. 169.71217 0.08392642 0.39395929 P 2.64 H 14.0 G 0.15 q 0.0971034 From 21 observations 2000 Sep. 23-2001 Sep. 19; RMS error 0.867 arcseconds Residuals in arcseconds: 000923 568 .21+ .17- 001104 309 .38+ .15+ 010121 675 .97+ 2.8- 000923 568 .15- .25- 001127 675 .03- .17+ 010121 675 1.0- .67+ 000923 568 .06- .23- 001127 675 .25- .38+ 010918 675 .03+ .77+ 000924 568 .14- .16- 001127 675 .26+ .66+ 010918 675 .14- .77+ 000924 568 .18- .08- 001127 675 .26- .77+ 010918 675 .03- .47+ 000924 568 .22- .12- 001127 675 .27- .37+ 010919 675 .09- .87- 001104 309 .70+ .16+ 001127 675 .07+ .27+ 010919 675 .25+ .67-
    S/2000 S 10: Orbital elements: S/2000 S 10 Perisaturn 2000 May 6.508168 TT Epoch 2001 Apr 1.0 TT = JDT 2452000.5 M 134.39239 (2000.0) P Q n 0.40787778 Peri. 284.76870 0.28170787 -0.89911133 a 0.1186261 Node 142.90104 0.94313273 0.32369193 e 0.6116504 Incl. 33.73917 -0.17646904 0.29465629 P 2.42 H 13.3 G 0.15 q 0.0460684 From 21 observations 2000 Sep. 23-2001 Sep. 19; RMS error 0.260 arcseconds Residuals in arcseconds: 000923 568 .13- .15- 001124 809 .31+ .07- 010119 675 .23+ .20- 000923 568 .13- .20- 001124 809 .15- .03+ 010824 568 .03+ .20+ 000923 568 .14- .11- 001127 675 .17+ .38+ 010824 568 .34- .10+ 000924 568 .21+ .21+ 001127 675 .05- .16+ 010824 568 .09+ .05- 000924 568 .20+ .10+ 001127 675 .17- .14+ 010919 675 .08+ .01+ 000924 568 .02+ .06+ 010119 675 .40+ .18- 010919 675 .08- .04- 001124 809 .37- .13- 010119 675 .30- .16- 010919 675 .14+ .10-
    S/2000 S 11: Orbital elements: S/2000 S 11 Perisaturn 2001 Dec 27.595377 TT Epoch 2001 Apr 1.0 TT = JDT 2452000.5 M 235.28466 (2000.0) P Q n 0.46089235 Peri. 60.14703 -0.81949912 -0.07526718 a 0.1093454 Node 110.03823 0.00327353 -0.99193629 e 0.4691768 Incl. 37.20896 0.57307108 -0.10196684 P 2.14 H 10.9 G 0.15 q 0.0580431 From 23 observations 2000 Nov. 23-2001 Oct. 23; RMS error 0.553 arcseconds Residuals in arcseconds: 001123 696 .07- .26- 001216 695 .65+ .85- 011022 696 .59+ .51- 001123 696 .10- .55+ 001216 695 .59+ .83- 011022 696 .32- .35+ 001124 809 .16- .25+ 001216 695 .66+ .95- 011023 696 .42+ .18+ 001124 809 .16- .22+ 001217 695 .77- .41+ 011023 696 .09+ .06+ 001124 809 .27- .17+ 010218 950 .19- .39+ 011023 696 .05+ .19+ 001125 809 .04+ .16+ 010218 950 .28- .33+ 011023 696 .07- .08- 001125 809 .01- .22+ 011021 696 .01+ .22- 011023 696 .09- .17- 001125 809 .01+ .27+ 011021 696 .60- .14+
    S/2000 S 12: Orbital elements: S/2000 S 12 Perisaturn 2000 May 31.014201 TT Epoch 2001 Apr 1.0 TT = JDT 2452000.5 M 106.39344 (2000.0) P Q n 0.34884719 Peri. 76.28620 -0.99453111 0.05512951 a 0.1316568 Node 253.18194 0.01276408 0.90712616 e 0.1090806 Incl. 174.68284 0.10365779 0.41723238 P 2.83 H 14.1 G 0.15 q 0.1172957 From 25 observations 2000 Sep. 23-2001 Nov. 15; RMS error 0.443 arcseconds Residuals in arcseconds: 000923 568 .22+ .07+ 001218 695 .05- .30+ 010919 675 .13+ .37+ 000923 568 .06+ .10+ 001218 695 .22- .04- 011114 309 .03+ .36+ 000923 568 .14- .18+ 010123 675 .57+ .49- 011114 309 .00 .41+ 000924 568 .33- .16+ 010123 675 .26+ .02+ 011114 309 .42+ .26+ 000924 568 .15+ .23- 010123 675 .17+ .62- 011115 309 .05+ .20+ 000924 568 .11- .18+ 010824 568 .03+ .37- 011115 309 .27- .05- 001104 309 .13- .02- 010824 568 .22+ .50- 011115 309 .01+ .00 001104 309 .03- .10+ 010919 675 .88- .61- 001218 695 .35- .83+ 010919 675 .12- .25+ Station data: (309) Cerro Paranal (S24.6260 W70.4032) (493) Calar Alto (N37.2236 W2.5458) (568) Mauna Kea (N19.8262 W155.4722) (675) Palomar Mountain (N33.3561 W116.8640) (693) Catalina Station, Tucson (N32.4168 W110.7320) (695) Kitt Peak (N31.9588 W111.5947) (696) Whipple Observatory, Mt. Hopkins (N31.6890 W110.8846) (809) European Southern Observatory, La Silla (S29.2572 W70.7296)

    Copyright information: The information and images on this page are in the public domain, and can be used freely for any purpose. However, an acknowledgment of this site as a source would certainly be appreciated.

    The information on this site is being updated frequently, as new objects are found, new observations are made, and as new ephemerides are generated for new observing sessions. So it is probably a good idea to provide links to this page, when possible, rather than copying data.