* Astronomy

Blobrana · L

RE: Comet 67P/Churyumov-Gerasimenko

Blobrana · L

Rosetta's Miro detects water but also shows no water emission from the darkside

Rosetta shows Comet 67P/Churyumov-Gerasimenko has a dry dusty crust

Credit ESA

Blobrana · L

Reprocessed image of Comet 67P/Churyumov-Gerasimenko on August 1st 2014.

Credits: ESA/Rosetta

Blobrana · L

Reprocessed image of 67P/Churyumov-Gerasimenko 02.08.14

Blobrana · L

Comet 67P/Churyumov-Gerasimenko makes its closest approach to the Earth (2.694 AU) on the 28th July 2014

Ephemeris

Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   Mag
2014 07 27    19 03 01.0 -30 54 45   2.6941  3.6573   158.3     5.9  18.8
2014 07 28    19 02 03.5 -30 55 54   2.6939  3.6517   157.3     6.2  18.8
2014 07 29    19 01 06.7 -30 56 58   2.6940  3.6461   156.2     6.5  18.8
2014 07 30    19 00 10.4 -30 57 57   2.6944  3.6405   155.1     6.7  18.8
2014 07 31    18 59 14.8 -30 58 51   2.6950  3.6349   154.0     7.0  18.8
2014 08 01    18 58 19.9 -30 59 39   2.6959  3.6292   152.9     7.3  18.8
2014 08 02    18 57 25.8 -31 00 23   2.6971  3.6236   151.8     7.6  18.7
2014 08 03    18 56 32.4 -31 01 01   2.6985  3.6179   150.7     7.9  18.7
2014 08 04    18 55 39.9 -31 01 34   2.7002  3.6123   149.6     8.2  18.7
2014 08 05    18 54 48.2 -31 02 02   2.7022  3.6066   148.5     8.4  18.7
2014 08 06    18 53 57.4 -31 02 25   2.7044  3.6009   147.4     8.7  18.7
2014 08 07    18 53 07.5 -31 02 43   2.7068  3.5952   146.3     9.0  18.7
2014 08 08    18 52 18.7 -31 02 57   2.7095  3.5895   145.3     9.3  18.7
2014 08 09    18 51 30.8 -31 03 05   2.7124  3.5838   144.2     9.5  18.7
2014 08 10    18 50 44.0 -31 03 10   2.7156  3.5781   143.1     9.8  18.7
2014 08 11    18 49 58.2 -31 03 09   2.7190  3.5723   142.0    10.1  18.7
2014 08 12    18 49 13.5 -31 03 04   2.7226  3.5666   140.9    10.3  18.7
2014 08 13    18 48 30.0 -31 02 55   2.7264  3.5608   139.8    10.6  18.7
2014 08 14    18 47 47.6 -31 02 42   2.7304  3.5551   138.7    10.8  18.7
2014 08 15    18 47 06.4 -31 02 24   2.7347  3.5493   137.6    11.1  18.7
2014 08 16    18 46 26.4 -31 02 02   2.7391  3.5435   136.6    11.3  18.7
2014 08 17    18 45 47.6 -31 01 37   2.7438  3.5377   135.5    11.6  18.7
2014 08 18    18 45 10.1 -31 01 07   2.7487  3.5319   134.4    11.8  18.7
2014 08 19    18 44 33.9 -31 00 34   2.7537  3.5261   133.3    12.0  18.7
2014 08 20    18 43 58.9 -30 59 56   2.7590  3.5203   132.3    12.3  18.7

Blobrana · L

Rotating Shape Model of Rosetta's Comet Target

Images of comet 67P/Churyumov-Gerasimenko taken on July 14, 2014, by the OSIRIS imaging system aboard the European Space Agency's Rosetta spacecraft have allowed scientists to create this three-dimensional shape model of the nucleus. The full rotation of the nucleus around its spin axis, shown here, emphasizes the bi-lobate structure already observed with the camera.
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Blobrana · L

Churyumov-Gerasimenko is a contact binary

The nucleus of the comet is clearly a contact binary -- two smaller (and unequally sized object) in close contact. The CNES page where this photo was released says the whole nucleus measures 4 by 3.5 kilometers, in good agreement with Hubble and Spitzer estimates.
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Blobrana · L

Comet 67P/Churyumov-Gerasimenko is at Opposition (2.742 AU) on the 10th July 2014

Blobrana · L

Comet ChuryumovGerasimenko on 28 February 2014

Blobrana · L

Comet 67P/Churyumov-Gerasimenko is at Opposition (4.230 AU) on the 11th June, 2013.

Ephemeris

Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   Mag
2013 06 10    17 17 53.1 -27 30 15   4.2324  5.2449   175.3     0.9  21.3
2013 06 11    17 17 08.1 -27 29 58   4.2296  5.2426   175.6     0.9  21.3
2013 06 12    17 16 23.1 -27 29 39   4.2272  5.2402   175.5     0.9  21.3
2013 06 13    17 15 38.0 -27 29 19   4.2252  5.2379   175.2     0.9  21.3
2013 06 14    17 14 52.9 -27 28 56   4.2234  5.2355   174.7     1.0  21.3
2013 06 15    17 14 07.9 -27 28 31   4.2219  5.2331   174.0     1.2  21.3
2013 06 16    17 13 22.9 -27 28 05   4.2207  5.2308   173.2     1.3  21.3
2013 06 17    17 12 38.0 -27 27 36   4.2199  5.2284   172.3     1.5  21.3
2013 06 18    17 11 53.2 -27 27 06   4.2194  5.2260   171.3     1.7  21.3
2013 06 19    17 11 08.6 -27 26 34   4.2191  5.2236   170.4     1.9  21.3
2013 06 20    17 10 24.2 -27 26 00   4.2192  5.2212   169.3     2.1  21.3