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COMET 2002 T7 (LINEAR) - PHOTOS AND OBSERVATIONS. Possum Observatory
Comet 2002 T7 was discovered by LINEAR (Lincoln Laboratory Near-Earth Asteroid Research project) on 14 October 2002. At discovery it was magnitude 17.5. It is expected to reach about magnitude 2-3ish on the 18th May 2004 in the WSW evening sky in Eridanius. It will have an elongation of 38° (3° altitude at the end of astronomical twilight - but it rapidly climbs higher in the sky each night thereafter). It will be at a distance of 0.296 AU (40,266,743 km) when it will be traveling at 22.1' / hour in a PA of 99°. For a somewhat jumbled list of 5 day interval positions for this comet scroll to the bottom of this page...
Below are my photos and observations of this comet...
| CLICK ON IMAGE FOR A LARGER VIEW... | DETAILS: | |
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Date (UT): Scope: Camera: Exposures and ISO: NOTES: |
Tuesday 21.31 June 2004 41cm f4.5 Meade SF Newtonian Canon EOS 10D digital SLR Fourteen x 1 minute @ 3200 ASA Mag 10.1 galaxy NGC 3115 15' NNE (also mag 13.3 galaxy PGC 29300 in tail) |
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Date (UT): Scope: Camera: Exposures and ISO: NOTES: |
Tuesday 21.31 June 2004 41cm f4.5 Meade SF Newtonian Canon EOS 10D digital SLR Fourteen x 1 minute @ 3200 ASA Mag 10.1 galaxy NGC 3115 15' NNE |
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Date (UT): Scope: Camera: Exposures and ISO: NOTES: |
Tusday 15.29 June 2004 41cm f4.5 Meade SF Newtonian Canon EOS 10D digital SLR Ten x 1 minute @ 1600 ASA
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Date (UT): Scope: Camera: Exposures and ISO: NOTES: |
Monday 07.29 June 2004 41cm f4.5 Meade SF Newtonian Canon EOS 10D digital SLR Ten x 1 minute @ 1600 ASA
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| For a webpage re the 43* tail in the image below click here | ||
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Date (UT): Scope: Camera: Exposures and ISO: NOTES: |
Wed 19.30 May 2004 24mm (x1.6 = 38mm) f3.5 Canon EF lens Canon EOS 10D digital SLR One x 3 minute @ 1600 ASA 43 degree long tai. High cloud. |
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Date (UT): Scope: Camera: Exposures and ISO: Magnitude / Alt / Az: Seeing / Transparency: NOTES: |
Mon 26.71 April 2004 150mm f4.5 Canon EF lens Canon EOS 10D digital SLR One x 3 minute @ 800 ASA 4.4ish / 13° / ENE 2/5, 3/5 (Antonardi Scale) Overenhanced to bring out tail. |
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Date (UT): Scope: Camera: Exposures and ISO: Magnitude / Alt / Az: Seeing / Transparency: NOTES: |
Mon 26.71 April 2004 150mm f4.5 Canon EF lens Canon EOS 10D digital SLR One x 60 seconds @ 3200 ASA 4.4ish / 13° / ENE 2/5, 3/5 (Antonardi Scale) Head easily visible to naked eye |
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Date (UT): Scope: Camera: Exposures and ISO: NOTES: |
Wed 19.30 May 2004 24mm (x1.6 = 38mm) f3.5 Canon EF lens Canon EOS 10D digital SLR One x 3 minute @ 1600 ASA 43 degree long tai. High cloud. |
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My observations of this comet...
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DATE UT
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MAG
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DIA
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D/C
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TAIL
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SCOPE
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COMMENTS
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26.71 April 04
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4.4
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6'.0
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7/9
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4*
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10x50B
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Low in east. Head easily visible to naked eye. Nice
tail in binoculars.
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LINEAR (C/2002 T7) - positions at 5 day intervals (from GUIDE 8). Please
note that these ephemerides may change over of time...
Date RA declination mag Elong Alt Azim
---- -- ----------- --- ----- ------ ------
29 Apr 2004 18:35:37 00h02m03.12s +01 24' 37.4" 1.7 38.2 -34.00 239.93
Psc
4 May 2004 18:35:37 00h17m11.68s -01 06' 58.2" 1.4 40.7 -32.87 236.89 Psc
9 May 2004 18:35:37 00h48m52.00s -04 55' 38.1" 1.0 40.5 -28.04 236.62 Cet
14 May 2004 18:35:37 02h00m09.50s -11 27' 31.8" 0.5 36.8 -14.58 241.93
Cet
19 May 2004 18:35:37 04h34m49.00s -19 25' 51.1" 0.3 41.1 15.27 257.12 Eri
24 May 2004 18:35:37 07h17m33.18s -18 20' 52.7" 1.2 61.2 42.38 280.61 CMa
29 May 2004 18:35:37 08h36m55.52s -14 18' 04.6" 2.3 71.3 50.74 298.59 Hya
3 Jun 2004 18:35:37 09h14m41.71s -11 38' 36.2" 3.3 74.0 51.75 306.65 Hya
8 Jun 2004 18:35:37 09h36m06.25s -10 00' 03.4" 4.2 73.6 50.74 308.81 Hya
13 Jun 2004 18:35:37 09h50m06.96s -08 56' 39.5" 4.9 71.8 49.04 308.12 Sex
18 Jun 2004 18:35:37 10h00m18.75s -08 14' 46.5" 5.5 69.2 47.01 306.04 Sex
23 Jun 2004 18:35:37 10h08m20.21s -07 47' 05.6" 6.1 66.2 44.79 303.31 Sex
28 Jun 2004 18:35:37 10h15m01.69s -07 29' 23.1" 6.6 63.0 42.41 300.27 Sex
3 Jul 2004 18:35:37 10h20m51.17s -07 19' 01.4" 7.0 59.6 39.90 297.12 Sex
8 Jul 2004 18:35:37 10h26m05.45s -07 14' 18.4" 7.4 56.2 37.30 293.96 Sex
13 Jul 2004 18:35:37 10h30m55.11s -07 14' 07.1" 7.8 52.7 34.61 290.83 Sex
18 Jul 2004 18:35:37 10h35m26.78s -07 17' 39.4" 8.1 49.1 31.85 287.77 Sex
23 Jul 2004 18:35:37 10h39m44.64s -07 24' 18.6" 8.5 45.6 29.04 284.77 Sex
28 Jul 2004 18:35:37 10h43m51.34s -07 33' 34.9" 8.8 42.0 26.18 281.83 Sex
2 Aug 2004 18:35:37 10h47m48.73s -07 45' 04.5" 9.0 38.5 23.27 278.95 Sex
7 Aug 2004 18:35:37 10h51m38.22s -07 58' 29.7" 9.3 35.0 20.34 276.11 Crt
12 Aug 2004 18:35:37 10h55m20.76s -08 13' 37.2" 9.5 31.5 17.38 273.32 Crt
17 Aug 2004 18:35:37 10h58m56.79s -08 30' 15.2" 9.8 28.1 14.41 270.54 Crt
22 Aug 2004 18:35:37 11h02m26.40s -08 48' 12.7" 10.0 24.8 11.43 267.78
Crt
27 Aug 2004 18:35:37 11h05m49.47s -09 07' 18.6" 10.2 21.7 8.44 265.01 Crt
1 Sep 2004 18:35:37 11h09m05.90s -09 27' 24.1" 10.4 18.8 5.46 262.21 Crt
6 Sep 2004 18:35:37 11h12m15.60s -09 48' 22.6" 10.5 16.4 2.49 259.39 Crt
11 Sep 2004 18:35:37 11h15m18.26s -10 10' 08.1" 10.7 14.6 -0.46 256.52
Crt
16 Sep 2004 18:35:37 11h18m13.36s -10 32' 34.4" 10.9 13.8 -3.39 253.58
Crt
21 Sep 2004 18:35:37 11h21m00.20s -10 55' 34.3" 11.0 14.2 -6.28 250.56
Crt
26 Sep 2004 18:35:37 11h23m38.08s -11 19' 00.7" 11.1 15.7 -9.13 247.43
Crt
1 Oct 2004 18:35:37 11h26m06.35s -11 42' 47.7" 11.3 18.1 -11.93 244.19
Crt
6 Oct 2004 18:35:37 11h28m24.33s -12 06' 50.5" 11.4 21.0 -14.66 240.81
Crt
11 Oct 2004 18:35:37 11h30m31.12s -12 31' 03.7" 11.5 24.4 -17.31 237.26
Crt
16 Oct 2004 18:35:37 11h32m25.64s -12 55' 20.6" 11.6 28.1 -19.87 233.53
Crt
21 Oct 2004 18:35:37 11h34m06.69s -13 19' 33.5" 11.7 32.0 -22.31 229.60
Crt
26 Oct 2004 18:35:37 11h35m33.11s -13 43' 34.6" 11.8 36.0 -24.62 225.44
Crt
31 Oct 2004 18:35:37 11h36m43.77s -14 07' 16.9" 11.9 40.2 -26.77 221.04
Crt
5 Nov 2004 18:35:37 11h37m37.42s -14 30' 33.3" 12.0 44.6 -28.73 216.37
Crt
10 Nov 2004 18:35:37 11h38m12.60s -14 53' 14.8" 12.1 49.1 -30.48 211.42
Crt
15 Nov 2004 18:35:37 11h38m27.70s -15 15' 10.6" 12.1 53.6 -31.97 206.19
Crt
20 Nov 2004 18:35:37 11h38m21.10s -15 36' 08.2" 12.2 58.3 -33.18 200.69
Crt
25 Nov 2004 18:35:37 11h37m51.33s -15 55' 55.2" 12.3 63.1 -34.07 194.94
Crt
30 Nov 2004 18:35:37 11h36m56.95s -16 14' 18.9" 12.3 68.0 -34.60 188.97
Crt
5 Dec 2004 18:35:37 11h35m36.43s -16 31' 04.6" 12.4 73.1 -34.74 182.82
Crt
10 Dec 2004 18:35:37 11h33m48.24s -16 45' 55.3" 12.4 78.2 -34.47 176.56
Crt
15 Dec 2004 18:35:37 11h31m30.95s -16 58' 31.3" 12.5 83.5 -33.77 170.25
Crt
20 Dec 2004 18:35:37 11h28m43.55s -17 08' 31.7" 12.5 88.8 -32.62 163.97
Crt
25 Dec 2004 18:35:37 11h25m25.46s -17 15' 36.6" 12.6 94.3 -31.04 157.77
Crt
30 Dec 2004 18:35:37 11h21m36.44s -17 19' 25.3" 12.6 99.9 -29.02 151.72
Crt
4 Jan 2005 18:35:37 11h17m16.67s -17 19' 36.5" 12.7 105.6 -26.58 145.85
Crt