Comet 52P/Harrington-Abell
- July 25.57: m1 = 12.5 (+/-0.2) Dia. 1.2', DC = 5, 169x256 L, Silva (HI)
- July 26.55: m1 = 11.8 (+/-0.2) Dia. 2' , DC = 2, 84x256 L, Dilli. (HI)
- July 27.55: m1 = 12.0 (+/-0.2) Dia. 1.5', DC = 2, 84x256 L, Koko-H.(HI)
- July 30.58: m1 = 12.1 (+/-0.2) Dia. 1.5', DC = 2, 42x256 L, Dilli. (HI)
- Aug. 02.63: m1 = 12.7 (+/-0.2) Dia. 1' , DC = 3, 84x256 L, Koko-H.(HI)
- Aug. 04.60: m1 = 12.7 (+/-0.2) Dia. 1' , DC = 2, 84x256 L, Koko-H.(HI)
- Aug. 20.55: m1 = 12.2 (+/-0.2) Dia. 1.5', DC = 3, 84x256 L, Dilli. (HI)
- Aug. 24.55: m1 = 12.1 (+/-0.2) Dia. 1.5', DC = 2, 84x256 L, Dilli. (HI)
- Aug. 28.51: m1 = 12.4 (+/-0.2) Dia. 1.3', DC = 2, 84x256 L, Dilli. (HI)
- Aug. 30.60: m1 = 12.8 (+/-0.2) Dia. 1.2', DC = 3, 84x256 L, Dilli. (HI)
- Sep. 02.62: m1 = 12.8 (+/-0.2) Dia. 1.2', DC = 2, 84x256 L, Dilli. (HI)
- Sep. 15.50: m1 = 12.2:(+/-0.3) Dia. 1.2', DC = 2, 84x256 L, Dilli. (HI)
- Sep. 18.50: m1 = 12.7 (+/-0.2) Dia. 1.4', DC = 2, 84x256 L, Dilli. (HI)
- Sep. 20.57: m1 = 13.1 (+/-0.2) Dia. 1.0', DC = 2, 84x256 L, Dilli. (HI)
- Sep. 22.56: m1 = 12.6 (+/-0.2) Dia. 1.3', DC = 1-2,84x256 L, Dilli. (HI)
- Sep. 26.55: m1 = 12.7 (+/-0.1) Dia. 1.5', DC = 2, 84x256 L, Dilli. (HI)
- Sep. 30.54: m1 = 12.6 (+/-0.3) Dia. 1.0', DC = 2, 84x256 L, Dilli. (HI)
- Oct. 04.64: m1 = 12.6 (+/-0.3) Dia. 1.0', DC = 3, 84x256 L, Dilli. (HI)
- Oct. 18.45: m1 = 12.7 (+/-0.2) Dia. 1.0', DC = 2, 84x256 L, Dilli. (HI)
- Oct. 20.46: m1 = 12.7 (+/-0.3) Dia. 1.0', DC = 2, 84x256 L, Dilli. (HI)
- Oct. 23.53: m1 = 12.5 (+/-0.2) Dia. 1.3', DC = 3, 84x256 L, Dilli. (HI)
- Oct. 24.46: m1 = 12.2 (+/-0.2) Dia. 1.2', DC = 2, 84x256 L, Dilli. (HI)
- Oct. 26.50: m1 = 12.6 (+/-0.2) Dia. 1.5', DC = 2, 84x256 L, Dilli. (HI)
- Oct. 28.55: m1 = 12.3 (+/-0.2) Dia. 1.2', DC = 3, 84x256 L, Dilli. (HI)
- Nov. 17.45: m1 = 11.6 (+/-0.2) Dia. 1.8', DC = 2, 42x256 L, Dilli. (HI)
- Nov. 18.65: m1 = 11.5 (+/-0.2) Dia. 2.5', DC = 3, 42x256 L, Koko-H.(HI)
- Nov. 21.43: m1 = 11.4 (+/-0.1) Dia. 1.8', DC = 3, 42x256 L, Dilli. (HI)
- Nov. 23.46: m1 = 11.5 (+/-0.2) Dia. 2.0', DC = 3, 42x256 L, Dilli. (HI)
- Nov. 28.53: m1 = 11.4 (+/-0.2) Dia. 1.4', DC = 3, 42x256 L, Dilli. (HI)
- Dec. 11.38: m1 = 11.2 (+/-0.1) Dia. 2.0', DC = 3, 42x256 L, Dilli. (HI)
- Dec. 14.35: m1 = 11.2 (+/-0.1) Dia. 2.0', DC = 3, 42x256 L, Dilli. (HI)
- Dec. 16.60: m1 = 10.9 (+/-0.2) Dia. 2.0', DC = 4, 42x256 L, Koko-H.(HI)
- Dec. 17.40: m1 = 11.0 (+/-0.2) Dia. 2.5', DC = 4, 42x256 L, Dilli. (HI)
- Dec. 19.39: m1 = 11.1 (+/-0.1) Dia. 2.0', DC = 3, 42x256 L, Dilli. (HI)
- Dec. 20.32: m1 = 11.2 (+/-0.2) Dia. 2.0', DC = 3, 42x256 L, Dilli. (HI)
- 1999:
- Jan. 10.34: m1 = 10.7 (+/-0.1) Dia. 2.0', DC = 5, 42x256 L, Dilli. (HI)
- Jan. 12.30: m1 = 10.5 (+/-0.2) Dia. 3.5', DC = 4, 42x256 L, Dilli. (HI)
- Jan. 14.31: m1 = 10.8 (+/-0.2) Dia. 3.0', DC = 3, 42x256 L, Dilli. (HI)
- Jan. 16.35: m1 = 10.5 (+/-0.1) Dia. 3.0', DC = 3, 42x256 L, Dilli. (HI)
- Jan. 17.34: m1 = 10.7 (+/-0.2) Dia. 3.0', DC = 3, 42x256 L, Dilli. (HI)
- Jan. 20.35: m1 = 11.1 (+/-0.2) Dia. 2.5', DC = 4, 42x256 L, Dilli. (HI)
- Jan. 24.44: m1 = 10.8 (+/-0.1) Dia. 2.5', DC = 3, 42x256 L, Dilli. (HI)
- Jan. 27.58: m1 = 11.1 (+/-0.2) Dia. 2.5', DC = 3, 42x256 L, Dilli. (HI)
- Feb. 13.30: m1 = 11.3 (+/-0.2) Dia. 2.0', DC = 2, 42x256 L, Dilli. (HI)
- Feb. 14.36: m1 = 11.3 (+/-0.2) Dia. 1.5', DC = 2, 42x256 L, Dilli. (HI)
- Feb. 15.48: m1 = 11.3 (+/-0.2) Dia. 1.5', DC = 2, 42x256 L, Dilli. (HI)
- Feb. 18.27: m1 = 12.0:(+/-0.2) Dia. 1.5', DC = 2, 84x256 L, Koko-H.(HI)
- Mar. 07.27: m1 = 12.4 (+/-0.2) Dia. 1.4', DC = 1, 84x256 L, Dilli. (HI)
- Mar. 09.31: m1 = 12.5 (+/-0.2) Dia. 1.3', DC = 2, 84x256 L, Dilli. (HI)
- Mar. 12.46: m1 = 12.3 (+/-0.2) Dia. 1.5', DC = 1, 84x256 L, Dilli. (HI)
- Mar. 14.30: m1 = 12.7 (+/-0.2) Dia. 1.0', DC = 2, 84x256 L, Dilli. (HI)
- Mar. 17.33: m1 = 13.0 (+/-0.3) Dia. 1.0', DC = 2, 84x256 L, Dilli. (HI)
- Mar. 23.45: m1 = 13.3 (+/-0.3) Dia. 1.0', DC = 2, 169x256 L, Dilli. (HI)
- Apr. 05.29: m1 = 13.5:(+/-0.2) Dia. 1.0', DC = 2 , 84x256 L, Dilli. (HI)
- Apr. 08.30: m1 = 13.6 (+/-0.2) Dia. 1.0', DC = 1 , 84x256 L, Dilli. (HI)
Comments:
Comet in outburst according to IAUC6976: seems rather elongated, and
diffuse: will it last long? September 2.63, 169x256 L: faint central
condensation elongated on 1' (several condensations??) in PA 270.
Images
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[28 K] Sep. 02.6: Drawing at 169x (8'x8' 25.6cm L)
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[18 K] Nov. 28.5: Drawing at 169x (8'x6' 25.6cm L)