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Post Info TOPIC: Comet P/2011 A1 (LARSON)


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RE: Comet P/2011 A1 (LARSON)
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Comet 250P/Larson is at Opposition (1.254 AU) on the 9th January 2018.



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Comet 250P/Larson
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Comet 250P/Larson is at Opposition (3.885 AU) in the constellation Piscis Austrinus on the 20th August 2015

Ephemeris

Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase   Mag
2015 08 19    22 18 14.5 -27 41 33   3.8865  4.8676   164.0     3.3  24.3
2015 08 20    22 17 35.2 -27 45 31   3.8849  4.8657   164.0     3.3  24.3
2015 08 21    22 16 55.8 -27 49 25   3.8835  4.8639   164.0     3.3  24.3
2015 08 22    22 16 16.3 -27 53 14   3.8824  4.8620   163.8     3.3  24.3
2015 08 23    22 15 36.6 -27 56 58   3.8816  4.8601   163.6     3.4  24.3
2015 08 24    22 14 56.8 -28 00 37   3.8811  4.8583   163.3     3.4  24.3
2015 08 25    22 14 16.9 -28 04 11   3.8809  4.8564   162.9     3.5  24.3
2015 08 26    22 13 37.0 -28 07 40   3.8809  4.8545   162.5     3.6  24.3
2015 08 27    22 12 57.1 -28 11 04   3.8813  4.8526   162.1     3.7  24.3
2015 08 28    22 12 17.2 -28 14 22   3.8820  4.8507   161.5     3.8  24.3
2015 08 29    22 11 37.3 -28 17 35   3.8829  4.8488   160.9     3.9  24.3
2015 08 30    22 10 57.5 -28 20 42   3.8842  4.8469   160.3     4.0  24.3
2015 08 31    22 10 17.8 -28 23 43   3.8857  4.8450   159.7     4.2  24.3


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Comet 250P/Larson is at Opposition (4.255 AU) on the 23rd July 2014 

Ephemeris

Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   Mag
2014 07 20    20 21 00.1 -31 43 07   4.2560  5.2533   167.7     2.4  24.8
2014 07 21    20 20 19.7 -31 46 05   4.2553  5.2532   167.9     2.3  24.8
2014 07 22    20 19 39.1 -31 48 58   4.2549  5.2531   168.0     2.3  24.8
2014 07 23    20 18 58.3 -31 51 49   4.2548  5.2530   168.1     2.3  24.8
2014 07 24    20 18 17.5 -31 54 35   4.2550  5.2529   168.0     2.3  24.8
2014 07 25    20 17 36.6 -31 57 18   4.2555  5.2527   167.8     2.3  24.8
2014 07 26    20 16 55.7 -31 59 57   4.2563  5.2526   167.5     2.4  24.8
2014 07 27    20 16 14.8 -32 02 33   4.2574  5.2525   167.2     2.5  24.8
2014 07 28    20 15 33.9 -32 05 04   4.2588  5.2523   166.7     2.5  24.8
2014 07 29    20 14 53.0 -32 07 31   4.2605  5.2522   166.2     2.6  24.9
2014 07 30    20 14 12.2 -32 09 54   4.2625  5.2520   165.6     2.8  24.9
2014 07 31    20 13 31.6 -32 12 13   4.2648  5.2519   165.0     2.9  24.9


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RE: Comet P/2011 A1 (LARSON)
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Orbital elements:
    P/2011 A1 (Larson)
Epoch 2010 Nov. 20.0 TT = JDT 2455520.5
T 2010 Nov. 14.35903 TT MPC
q 2.2140278 (2000.0) P Q
n 0.13676469 Peri. 44.88916 -0.46123260 -0.85937844
a 3.7309554 Node 73.75623 +0.73578371 -0.50949998
e 0.4065789 Incl. 13.29324 +0.49586976 -0.04334116
P 7.21
From 214 observations 1995 Dec. 22-2011 Mar. 12

 MPEC 2011 - F21



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Orbital elements:
P/2011 A1 (Larson)
T 2010 Nov. 15.43246 TT MPC
q 2.2208562 (2000.0) P Q
n 0.13516894 Peri. 45.17571 -0.46852651 -0.85521142
a 3.7602620 Node 73.96069 +0.73149685 -0.51617571
e 0.4093879 Incl. 13.32956 +0.49537387 -0.04664825
P 7.29
From 15 observations 2010 Dec. 11-2011 Jan. 11.

MPEC 2011 - A46


Comet P/2011 A1 (LARSON) was discovered on the 11th December 2010, by S. Larson (Catalina Sky Survey).
The orbital elements of the comet indicate a perihelion passage on the 15th November, 2010, at a distance of 2.22 AU from the Sun, and an orbital period of 7.29 years.

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