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Post Info TOPIC: Vesta


L

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RE: Vesta
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One of the sky's nicest gifts this month is an easy way to find and track the large asteroid 4 Vesta. This space rock remains within 1 binocular field of the 4th-magnitude star Alpha Piscium, which lies halfway up in the southeastern sky during early evening.
From a suburban backyard, you can spot the 7th-magnitude asteroid without much effort. Apart from Alpha, only three other stars in the area shine brighter than Vesta. From December 7 to 9, Vesta appears near the vertex of an equilateral triangle of these stars, the brightest of which is Alpha itself.

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The asteroid Vesta is somewhat shy at 6.4 magnitude. We have a better-than-average chance to add the asteroid notch to our astronomy observing belts this week since Vesta reaches greatest brilliance tonight.

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Vesta the fourth largest asteroid will be at opposition on the 30th October, 2008.
The magnitude  6.5 asteroid is currently in the constellation Cetus, about 1.54 AU from the Earth.
A small telescope or binoculars will easily show up the asteroid.
Date       UT      R.A. (J2000) Decl.    Delta     r     El.    Ph.   V     
h m s
2008 10 24 000000 02 38 17.6 +03 58 34 1.540 2.518 166.7 5.2 6.5
2008 10 25 000000 02 37 18.9 +03 54 23 1.539 2.519 167.4 4.9 6.5
2008 10 26 000000 02 36 19.9 +03 50 17 1.538 2.519 168.0 4.7 6.5
2008 10 27 000000 02 35 20.4 +03 46 17 1.538 2.520 168.5 4.5 6.5
2008 10 28 000000 02 34 20.6 +03 42 22 1.538 2.521 168.8 4.4 6.5
2008 10 29 000000 02 33 20.6 +03 38 33 1.539 2.521 169.1 4.3 6.4
2008 10 30 000000 02 32 20.4 +03 34 51 1.539 2.522 169.2 4.2 6.4
2008 10 31 000000 02 31 20.1 +03 31 15 1.540 2.522 169.1 4.2 6.4
2008 11 01 000000 02 30 19.9 +03 27 46 1.542 2.523 169.0 4.3 6.5


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Venus occultion

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Posts: 128171
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Vesta occultation
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HIP 76876 (HD 140031)

HD140031
Expand (54kb, 560 x 560)

Position (J2000): RA: 15 41 53.5 Dec: -12 45 35
Size: 14'1 x 14'1

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The magnitude 7.6 asteroid (4) Vesta will occult the magnitude 8.8 star HIP 76876 at 07:16 UT , on the 31st January 2007 .
The event will be observable from Uruguay, Argentina, Chile

vestaoccult map

Position(2000): RA = 15 41 53.572 Dec.= -12 45 35.62

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Vesta Ephemeris

vestajanFeb2007

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-- Edited by Blobrana at 23:12, 2007-01-29

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Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2006 03 01 06 33.41 +25 33.2 1.888 2.503 117.3 20.6 7.4
2006 03 02 06 33.61 +25 34.5 1.899 2.502 116.4 20.8 7.4
2006 03 03 06 33.84 +25 35.7 1.910 2.502 115.4 21.0 7.4
2006 03 04 06 34.10 +25 36.9 1.922 2.501 114.5 21.2 7.4
2006 03 05 06 34.39 +25 38.0 1.933 2.500 113.5 21.3 7.5
2006 03 06 06 34.72 +25 39.1 1.944 2.499 112.6 21.5 7.5
2006 03 07 06 35.07 +25 40.1 1.956 2.499 111.7 21.7 7.5
2006 03 08 06 35.46 +25 41.1 1.967 2.498 110.8 21.8 7.5
2006 03 09 06 35.87 +25 42.0 1.979 2.497 109.9 22.0 7.5
2006 03 10 06 36.31 +25 42.9 1.990 2.497 109.0 22.1 7.5
2006 03 11 06 36.78 +25 43.7 2.002 2.496 108.1 22.2 7.6
2006 03 12 06 37.28 +25 44.5 2.014 2.495 107.2 22.4 7.6
2006 03 13 06 37.81 +25 45.2 2.026 2.494 106.3 22.5 7.6
2006 03 14 06 38.36 +25 45.9 2.038 2.494 105.4 22.6 7.6
2006 03 15 06 38.94 +25 46.5 2.050 2.493 104.6 22.7 7.6
2006 03 16 06 39.55 +25 47.1 2.061 2.492 103.7 22.8 7.6
2006 03 17 06 40.18 +25 47.6 2.073 2.491 102.9 22.9 7.6
2006 03 18 06 40.84 +25 48.0 2.086 2.491 102.0 23.0 7.7
2006 03 19 06 41.53 +25 48.4 2.098 2.490 101.2 23.1 7.7
2006 03 20 06 42.24 +25 48.8 2.110 2.489 100.3 23.2 7.7
2006 03 21 06 42.97 +25 49.1 2.122 2.488 99.5 23.3 7.7
2006 03 22 06 43.73 +25 49.3 2.134 2.488 98.7 23.3 7.7
2006 03 23 06 44.52 +25 49.5 2.146 2.487 97.9 23.4 7.7
2006 03 24 06 45.32 +25 49.7 2.158 2.486 97.1 23.4 7.7
2006 03 25 06 46.15 +25 49.7 2.170 2.485 96.3 23.5 7.8
2006 03 26 06 47.01 +25 49.8 2.183 2.485 95.5 23.6 7.8
2006 03 27 06 47.88 +25 49.7 2.195 2.484 94.7 23.6 7.8
2006 03 28 06 48.78 +25 49.7 2.207 2.483 93.9 23.6 7.8
2006 03 29 06 49.70 +25 49.5 2.219 2.482 93.1 23.7 7.8
2006 03 30 06 50.64 +25 49.3 2.232 2.482 92.3 23.7 7.8
2006 03 31 06 51.60 +25 49.0 2.244 2.481 91.6 23.7 7.8


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Position of Vesta on Feb 28th 2006.


Date    TT    R. A. (2000) Decl.        V
2005-Dec-28 07 16 42 +22 08 33.9 6.51
2005-Dec-29 07 15 39 +22 13 19.0 6.49
2005-Dec-30 07 14 35 +22 18 04.5 6.46
2005-Dec-31 07 13 30 +22 22 50.2 6.43
2006-Jan-01 07 12 25 +22 27 35.7 6.40
2006-Jan-02 07 11 19 +22 32 20.8 6.37
2006-Jan-03 07 10 13 +22 37 05.2 6.34
2006-Jan-04 07 09 06 +22 41 48.5 6.30
2006-Jan-05 07 07 59 +22 46 30.6 6.26
2006-Jan-06 07 06 52 +22 51 11.1 6.21
2006-Jan-07 07 05 45 +22 55 49.8 6.26
2006-Jan-08 07 04 37 +23 00 26.4 6.30
2006-Jan-09 07 03 30 +23 05 00.8 6.33
2006-Jan-10 07 02 23 +23 09 32.6 6.36
2006-Jan-11 07 01 16 +23 14 01.7 6.39
2006-Jan-12 07 00 10 +23 18 27.9 6.42
2006-Jan-13 06 59 04 +23 22 51.0 6.45
2006-Jan-14 06 57 58 +23 27 10.7 6.47
2006-Jan-15 06 56 53 +23 31 27.1 6.49
2006-Jan-16 06 55 49 +23 35 39.8 6.52
2006-Jan-17 06 54 45 +23 39 48.9 6.54
2006-Jan-18 06 53 42 +23 43 54.1 6.56
2006-Jan-19 06 52 40 +23 47 55.4 6.58
2006-Jan-20 06 51 39 +23 51 52.6 6.61
2006-Jan-21 06 50 39 +23 55 45.7 6.63
2006-Jan-22 06 49 40 +23 59 34.5 6.65
2006-Jan-23 06 48 43 +24 03 19.2 6.67
2006-Jan-24 06 47 46 +24 06 59.4 6.69
2006-Jan-25 06 46 51 +24 10 35.4 6.71
2006-Jan-26 06 45 57 +24 14 06.9 6.73
2006-Jan-27 06 45 05 +24 17 34.0 6.75
2006-Jan-28 06 44 14 +24 20 56.7 6.77
2006-Jan-29 06 43 25 +24 24 15.0 6.79
2006-Jan-30 06 42 37 +24 27 28.8 6.82


-- Edited by Blobrana at 23:32, 2006-02-28

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Vesta was the fourth asteroid to be discovered. With a diameter of 525 kilometres, Vesta appears to even the largest telescopes as a speck of light.



Vesta holds the distinction of being the brightest asteroid, occasionally being visible to the naked eye. Just now Vesta is at "opposition" and is an ideal time to observe the asteroid.
Vesta reflects 25 percent of the sunlight falling onto its surface, the moon, by comparison, reflects only 12 percent.
Opposition is when a celestial object appears opposite in the sky from the sun. It's during this time that a body lies closest to Earth and reaches its brightest.
Vesta will officially reaches this point on January 5, 2006, when it lies only 143,781,413 miles away.

To be sure it's Vesta, make a sketch of the stars you see and return night after night. You should soon notice that one of these "stars" is moving through this stellar pattern.
This, of course, is no star; it's Vesta.

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