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Post Info TOPIC: Asteroid 48 Doris


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Asteroid (48) Doris
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(48) Doris / HD 19698 event

On 2018 Feb 23, 14:09 UT, the 223 km diameter asteroid (48) Doris will occult a 6.0 mag star HD 19698 in the constellation Aries for observers along a path across SE Asia, India.

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Asteroid (48) Doris is at Opposition in the constellation Cetus on the 8th November 2017.

Magnitude: 10.9 V
Distance to Earth: 1.927 AU
Distance to Sun; 2.913 AU



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Asteroid (48) Doris is at Opposition in the constellation Virgo on the 20th March 2014

Magnitude: 11.1
Distance to Earth: 2.146 AU
Distance to Sun: 3.142 AU



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Asteroid (48) Dorisis at Opposition on the 23rd December, 2012.

Magnitude: 10.9
Distance to Earth: 1.913 au
Distance to Sun: 2.887 au



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Ephemeris

Date       UT      R.A. (J2000) Decl.    Delta     r     El.    Ph.   Mag
2012 12 22 000000 06 09 35.5 +13 31 18   1.913   2.887  169.9   3.4  10.9
2012 12 23 000000 06 08 43.8 +13 31 22   1.913   2.887  170.1   3.4  10.9
2012 12 24 000000 06 07 52.1 +13 31 31   1.913   2.887  170.1   3.4  10.9
2012 12 25 000000 06 07 00.4 +13 31 45   1.914   2.887  170.0   3.4  10.9
2012 12 26 000000 06 06 08.8 +13 32 03   1.914   2.887  169.7   3.5  10.9
2012 12 27 000000 06 05 17.4 +13 32 26   1.915   2.887  169.3   3.6  11.0
2012 12 28 000000 06 04 26.2 +13 32 54   1.917   2.888  168.8   3.8  11.0
2012 12 29 000000 06 03 35.3 +13 33 26   1.918   2.888  168.1   4.0  11.0
2012 12 30 000000 06 02 44.7 +13 34 03   1.920   2.888  167.4   4.3  11.0
2012 12 31 000000 06 01 54.6 +13 34 45   1.923   2.888  166.6   4.5  11.0
2013 01 01 000000 06 01 04.8 +13 35 31   1.925   2.888  165.8   4.8  11.0
2013 01 02 000000 06 00 15.6 +13 36 22   1.928   2.889  164.9   5.1  11.1
2013 01 03 000000 05 59 27.0 +13 37 17   1.931   2.889  164.0   5.4  11.1
2013 01 04 000000 05 58 38.9 +13 38 17   1.934   2.889  163.0   5.7  11.1
2013 01 05 000000 05 57 51.6 +13 39 21   1.938   2.889  162.0   6.0  11.1
2013 01 06 000000 05 57 04.9 +13 40 30   1.942   2.889  161.0   6.4  11.1
2013 01 07 000000 05 56 19.1 +13 41 42   1.946   2.890  160.0   6.7  11.2
2013 01 08 000000 05 55 34.0 +13 43 00   1.951   2.890  158.9   7.0  11.2
2013 01 09 000000 05 54 49.9 +13 44 21   1.955   2.890  157.9   7.4  11.2
2013 01 10 000000 05 54 06.6 +13 45 46   1.960   2.890  156.8   7.7  11.2


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Asteroid (48) Doris is at Opposition on the 23rd September, 2011.

Magnitude: 10.9
Distance to Earth: 2.049 AU
Distance to Sun: 3.053 AU



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Asteroid (48) Doris
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Asteroid (48) Doris is one of the largest main belt asteroids. It was discovered by Hermann Goldschmidt on September 19, 1857 from his balcony in Paris.
An occultation on March 19, 1981, suggested a diameter of 21925 km. Observations of an occultation on October 14, 1999, using four well-placed chords, indicate an ellipsoid of 278 x 142 km and that 48 Doris is an extremely irregular shaped object.

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Google earth file: Asteroid (48) Doris (9kb, kmz)

Ephemeris

Date       UT      R.A. (J2000) Decl.    Delta     r     El.    Ph.   V
2011 09 22 000000 23 59 15.8 +00 41 48   2.050   3.054  178.2   0.6  11.0
2011 09 23 000000 23 58 33.9 +00 35 12   2.049   3.053  179.2   0.3  10.9
2011 09 24 000000 23 57 52.0 +00 28 36   2.049   3.052  179.0   0.3  11.0
2011 09 25 000000 23 57 10.1 +00 21 59   2.049   3.051  178.0   0.7  11.0
2011 09 26 000000 23 56 28.2 +00 15 22   2.049   3.051  176.8   1.0  11.0
2011 09 27 000000 23 55 46.5 +00 08 46   2.049   3.050  175.7   1.4  11.1
2011 09 28 000000 23 55 04.9 +00 02 10   2.050   3.049  174.5   1.8  11.1
2011 09 29 000000 23 54 23.6 -00 04 24   2.051   3.049  173.3   2.2  11.1
2011 09 30 000000 23 53 42.5 -00 10 57   2.052   3.048  172.1   2.6  11.2
2011 10 01 000000 23 53 01.7 -00 17 27   2.054   3.047  171.0   3.0  11.2
2011 10 02 000000 23 52 21.3 -00 23 56   2.056   3.046  169.8   3.3  11.2
2011 10 03 000000 23 51 41.3 -00 30 22   2.058   3.046  168.6   3.7  11.2
2011 10 04 000000 23 51 01.7 -00 36 44   2.061   3.045  167.4   4.1  11.3
2011 10 05 000000 23 50 22.6 -00 43 03   2.063   3.044  166.3   4.5  11.3
2011 10 06 000000 23 49 44.1 -00 49 19   2.066   3.043  165.1   4.9  11.3
2011 10 07 000000 23 49 06.1 -00 55 31   2.070   3.043  163.9   5.2  11.3
2011 10 08 000000 23 48 28.8 -01 01 38   2.073   3.042  162.7   5.6  11.3
2011 10 09 000000 23 47 52.1 -01 07 41   2.077   3.041  161.6   6.0  11.4
2011 10 10 000000 23 47 16.1 -01 13 38   2.081   3.041  160.4   6.3  11.4
2011 10 11 000000 23 46 40.8 -01 19 31   2.086   3.040  159.2   6.7  11.4
2011 10 12 000000 23 46 06.3 -01 25 18   2.090   3.039  158.1   7.0  11.4


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RE: Asteroid 48 Doris
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Opposition: 26 April 2009
Distance to Earth: 2.25132 AU
Magnitude: 11.4

Ephemeris
Date       UT      R.A. (J2000) Decl.    Delta     r     El.    Ph.   V     
h m s
2009 04 01 000000 14 37 27.3 -10 51 43 2.343 3.251 150.6 8.7 11.9
2009 04 02 000000 14 36 56.4 -10 47 00 2.337 3.252 151.7 8.4 11.9
2009 04 03 000000 14 36 24.6 -10 42 13 2.331 3.252 152.8 8.1 11.9
2009 04 04 000000 14 35 51.8 -10 37 23 2.325 3.253 153.9 7.8 11.8
2009 04 05 000000 14 35 18.2 -10 32 29 2.319 3.253 155.0 7.5 11.8
2009 04 06 000000 14 34 43.7 -10 27 32 2.313 3.254 156.2 7.1 11.8
2009 04 07 000000 14 34 08.3 -10 22 32 2.308 3.254 157.3 6.8 11.8
2009 04 08 000000 14 33 32.2 -10 17 30 2.303 3.255 158.4 6.5 11.8
2009 04 09 000000 14 32 55.3 -10 12 24 2.298 3.255 159.5 6.2 11.7
2009 04 10 000000 14 32 17.6 -10 07 16 2.294 3.256 160.6 5.9 11.7
2009 04 11 000000 14 31 39.3 -10 02 06 2.290 3.256 161.7 5.5 11.7
2009 04 12 000000 14 31 00.3 -09 56 55 2.286 3.257 162.9 5.2 11.7
2009 04 13 000000 14 30 20.7 -09 51 41 2.282 3.258 164.0 4.9 11.7
2009 04 14 000000 14 29 40.5 -09 46 26 2.279 3.258 165.1 4.6 11.6
2009 04 15 000000 14 28 59.8 -09 41 09 2.276 3.259 166.1 4.2 11.6
2009 04 16 000000 14 28 18.5 -09 35 51 2.273 3.259 167.2 3.9 11.6
2009 04 17 000000 14 27 36.8 -09 30 33 2.270 3.260 168.3 3.6 11.6
2009 04 18 000000 14 26 54.6 -09 25 14 2.268 3.260 169.3 3.3 11.6
2009 04 19 000000 14 26 12.1 -09 19 55 2.266 3.261 170.3 3.0 11.5
2009 04 20 000000 14 25 29.2 -09 14 36 2.265 3.261 171.3 2.7 11.5
2009 04 21 000000 14 24 46.0 -09 09 17 2.263 3.262 172.2 2.4 11.5
2009 04 22 000000 14 24 02.6 -09 03 58 2.262 3.262 173.1 2.1 11.5
2009 04 23 000000 14 23 18.9 -08 58 41 2.261 3.263 173.8 1.9 11.5
2009 04 24 000000 14 22 35.1 -08 53 24 2.261 3.263 174.4 1.7 11.5
2009 04 25 000000 14 21 51.2 -08 48 09 2.261 3.264 174.8 1.6 11.4
2009 04 26 000000 14 21 07.2 -08 42 56 2.261 3.264 174.9 1.6 11.4
2009 04 27 000000 14 20 23.2 -08 37 44 2.261 3.265 174.8 1.6 11.4
2009 04 28 000000 14 19 39.2 -08 32 35 2.262 3.265 174.4 1.7 11.5
2009 04 29 000000 14 18 55.3 -08 27 28 2.263 3.266 173.9 1.9 11.5
2009 04 30 000000 14 18 11.5 -08 22 24 2.264 3.266 173.1 2.1 11.5


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(48) Doris
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 Goffin
M 30.20873 (2000.0) P Q
n 0.17970459 Peri. 257.46734 +0.15322085 -0.98816388
a 3.1100206 Node 183.74318 +0.94518606 +0.14874878
e 0.0747882 Incl. 6.55377 +0.28835166 +0.03749600
P 5.48 H 6.90 G 0.15 U 0


Ephemeris
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 01 01 09 31.15 +07 00.7 2.154 2.946 136.5 13.3 11.7
2008 01 06 09 29.28 +07 06.2 2.111 2.949 141.9 11.9 11.6
2008 01 11 09 26.90 +07 15.5 2.074 2.951 147.5 10.3 11.5
2008 01 16 09 24.04 +07 28.4 2.043 2.954 153.1 8.7 11.4
2008 01 21 09 20.78 +07 44.6 2.018 2.957 158.8 6.9 11.3
2008 01 26 09 17.21 +08 03.8 2.000 2.960 164.3 5.2 11.2
2008 01 31 09 13.42 +08 25.6 1.989 2.963 169.3 3.5 11.1
2008 02 05 09 09.51 +08 49.5 1.986 2.966 172.6 2.5 11.0
2008 02 10 09 05.59 +09 14.9 1.989 2.969 171.7 2.8 11.0
2008 02 15 09 01.79 +09 41.1 2.000 2.972 167.4 4.2 11.1
2008 02 20 08 58.21 +10 07.6 2.019 2.975 162.2 5.8 11.3
2008 02 25 08 54.96 +10 33.7 2.044 2.978 156.6 7.6 11.4



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