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Post Info TOPIC: Ceres


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RE: Ceres
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Asteroid Ceres (+9.1 mag.) enters the Hyades cluster on the 12th July, 2012.

ceres-001.gif



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Asteroid (1) Ceres occulted the magnitude 7.9 star HIP  93277 in the constellation Sagittarius, at 09:29 UT, 20th November, 2010.
The 25.5 second event was visible from Japan.

Position(2000): RA 19 00 00.2582  Dec -28 03 03.011

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On the 6th of July, 2010, the 7th magnitude asteroid Ceres lies below the star Theta Ophiuchi. The asteroid will be next to a 6th magnitude star 2.5 degrees southeast of Theta Ophiuchus.

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Orbital Elements at Epoch 2454800.5 (2008-Nov-30.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07947462245028122 2.1311e-08  
a 2.766791532351548 1.7735e-09 AU
q 2.546901819919273 5.9368e-08 AU
i 10.58571555748677 2.4751e-06 deg
node 80.40447317892902 1.291e-05 deg
peri 72.89568694749072 2.0699e-05 deg
M 344.5452233474741 1.6132e-05 deg
tp 2454872.664451672003
(2009-Feb-10.16445168)
7.5334e-05 JED
period 1680.982079910878
4.60
1.6163e-06
4.425e-09
d
yr
n .2141605221746839 2.0592e-10 deg/d
Q 2.986681244783822 1.9145e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      6102  
   data-arc span      73835 days (202.15 yr)  
   first obs. used      1802-01-27  
   last obs. used      2004-03-23  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   quality code      0  
   fit RMS      .64289  
   data source      ORB  
   producer      Otto Matic  
   solution date      2005-Apr-22 14:18:57  

Additional Information
 Earth MOID = 1.58214 AU 
 T_jup = 3.310 
Source

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On the 25th February, 2009, the dwarf planet Ceres will make its closest opposition to the Earth since 1857.  The alignment wont be closer for 2000+ years.
The dwarf planet will brighten to magnitude 6.9 in constellation Leo.

Ephemeris
Date       UT      R.A. (J2000) Decl.    Delta     r     El.    Ph.   V  
h m s
2009 02 01 000000 11 18 15.1 +21 13 53 1.665 2.547 146.8 12.2 7.2
2009 02 02 000000 11 17 49.9 +21 21 57 1.659 2.547 147.8 11.9 7.2
2009 02 03 000000 11 17 23.2 +21 30 04 1.653 2.547 148.7 11.6 7.2
2009 02 04 000000 11 16 54.9 +21 38 13 1.647 2.547 149.7 11.3 7.2
2009 02 05 000000 11 16 25.0 +21 46 23 1.641 2.547 150.7 10.9 7.2
2009 02 06 000000 11 15 53.7 +21 54 34 1.636 2.547 151.6 10.6 7.1
2009 02 07 000000 11 15 20.9 +22 02 45 1.631 2.547 152.5 10.3 7.1
2009 02 08 000000 11 14 46.6 +22 10 56 1.626 2.547 153.4 10.0 7.1
2009 02 09 000000 11 14 11.0 +22 19 07 1.622 2.547 154.3 9.7 7.1
2009 02 10 000000 11 13 33.9 +22 27 16 1.617 2.547 155.2 9.3 7.1
2009 02 11 000000 11 12 55.5 +22 35 23 1.613 2.547 156.1 9.0 7.0
2009 02 12 000000 11 12 15.9 +22 43 28 1.609 2.547 156.9 8.7 7.0
2009 02 13 000000 11 11 35.0 +22 51 30 1.606 2.547 157.7 8.5 7.0
2009 02 14 000000 11 10 52.9 +22 59 28 1.602 2.547 158.5 8.2 7.0
2009 02 15 000000 11 10 09.6 +23 07 23 1.599 2.547 159.2 7.9 7.0
2009 02 16 000000 11 09 25.2 +23 15 12 1.597 2.547 159.9 7.7 7.0
2009 02 17 000000 11 08 39.8 +23 22 56 1.594 2.547 160.5 7.4 6.9
2009 02 18 000000 11 07 53.4 +23 30 34 1.592 2.547 161.1 7.2 6.9
2009 02 19 000000 11 07 06.1 +23 38 05 1.590 2.547 161.6 7.0 6.9
2009 02 20 000000 11 06 17.8 +23 45 30 1.588 2.547 162.1 6.9 6.9
2009 02 21 000000 11 05 28.8 +23 52 46 1.587 2.547 162.5 6.7 6.9
2009 02 22 000000 11 04 39.1 +23 59 54 1.585 2.547 162.8 6.6 6.9
2009 02 23 000000 11 03 48.6 +24 06 53 1.584 2.547 163.0 6.5 6.9
2009 02 24 000000 11 02 57.6 +24 13 43 1.584 2.547 163.2 6.4 6.9
2009 02 25 000000 11 02 06.1 +24 20 22 1.583 2.547 163.3 6.4 6.9
2009 02 26 000000 11 01 14.0 +24 26 51 1.583 2.547 163.3 6.4 6.9
2009 02 27 000000 11 00 21.7 +24 33 09 1.583 2.547 163.2 6.5 6.9
2009 02 28 000000 10 59 29.0 +24 39 15 1.584 2.547 163.0 6.5 6.9
2009 03 01 000000 10 58 36.1 +24 45 10 1.584 2.548 162.7 6.6 6.9
2009 03 02 000000 10 57 43.0 +24 50 51 1.585 2.548 162.4 6.8 6.9


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On November 11th the Dwarf Planet Ceres is at Opposition (Ceres is aligned with the Earth and Sun)
The magnitude 7.2 Dwarf Planet makes its closest approach to Earth on the 12th (at 1.832 AU).

Ceres1
Expand (199kb, 792 x 554)
From November 10th to December 2nd.

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L

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Ceres makes its best appearance in the next few weeks. On August 12, Ceres will be as visible as it gets when it reaches opposition. Even then, it will be tricky to spot it with binoculars or a small telescope. Your luck will be better if you attend a star party where bigger telescopes may be trained on Ceres. The asteroid is travelling through the constellation Piscis Austrinus (the Southern Fish), which is low in the southern sky.

Read more

-- Edited by Blobrana at 00:32, 2006-07-28

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The asteroid Ceres is at magnitude 7.3 tonight, in the constellation Libra.
Near to the star delta libra (mag 5)


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Anonymous

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This week, the asteroid Ceres reaches opposition, rising in the east as the sun sets in the west. With little interference from moonlight, you should have a great opportunity to spot Ceres.

Ceres is just under the limit of naked eye visibility (mag. 7), so a small pair of binoculars should show it up clearly.


The asteroid is less than one degree north of the bright star Zubeneschamali (Beta Librae) in the constellation of Libra.
Look to the south-east around 9 or 10 p.m.


Ceres is named after the Roman goddess of agriculture, and is the largest asteroid known, with a diameter of 567 miles.


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