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Post Info TOPIC: Asteroid 29 Amphitrite


L

Posts: 129960
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RE: Asteroid 29 Amphitrite
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Ephemeris
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2010 06 30 18 56.47 -32 19.9 1.682 2.689 169.7 3.9 9.5
2010 07 05 18 51.07 -32 24.4 1.678 2.686 170.4 3.6 9.4
2010 07 10 18 45.67 -32 25.7 1.681 2.683 167.8 4.6 9.5
2010 07 15 18 40.43 -32 23.8 1.690 2.681 163.6 6.2 9.6
2010 07 20 18 35.53 -32 18.7 1.706 2.678 158.6 8.0 9.7
2010 07 25 18 31.09 -32 10.9 1.728 2.675 153.4 9.8 9.8
2010 07 30 18 27.23 -32 00.6 1.756 2.672 148.1 11.6 9.9


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L

Posts: 129960
Date:
Asteroid (29) Amphitrite
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The magnitude 11.1 asteroid (29) Amphitrite will occult the magnitude 6.75 HD 175193 in the constellation Sagittarius, at 09:18 UT, 29th March 2010.
The 11.2 second event is visible from Bolivia and Peru.

Position (2000): RA 18 55 25.9222, Dec -29 12 47.187

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L

Posts: 129960
Date:
Asteroid 29 Amphitrite
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29 Amphitrite is one of the largest S-type asteroids, probably third in diameter after Eunomia and Juno, although Iris and Herculina are similar in size.
It is probably not a fully solid body, since its density is too low for a solid silicate object and much lower than Eunomia or Juno. Its orbit is less eccentric and inclined than those of its larger cousins - being indeed the most circular of any asteroid discovered up to that point - and as a consequence it never becomes as bright as Iris or Hebe, especially as it is much further from the Sun than those asteroids. It can reach magnitudes of around +8.6 at a favourable opposition, but more usually is around the binocular limit of +9.5.

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