8/31 西村彗星观测记录 C/2023 P1 (Nishimura)
西村彗星集业余发现、亮度爆发、亮彗星于一体，并且成功收获了互联网的关注流量，但其观测期也是转瞬即逝，可谓来也匆匆、去也匆匆。目前依旧在朝着近日点进发，亮度升高，并且爆了长尾，观测高度也在下行，因此抓住一次难得的天气窗口就上阵了。http://pic2.zhimg.com/v2-85f019af5168e8e6528ed0fc10a5b5b5_r.jpg
VBN标注亮度6.9，光度曲线如下：
http://pic2.zhimg.com/v2-6a08762e853184a62c933433ce7e6c69_r.jpg
VBN光度曲线
http://pic4.zhimg.com/v2-a5090cc9ba24b736044eaf2b64caa7b3_r.jpg
COBS光度曲线
环境：波特尔4级，极限星等6.1-6.5，农历十六，满月，AOD0.45-0.5，视宁度指数2,1。
http://pic2.zhimg.com/v2-e793bc207550e73f93fdafbca36972a1_r.jpg
虽然是满月，但是在相反方位，且已被建筑物阻挡，问题不大。
4点10分起床，从北河三向下，提前使用DOB 8 通过星跳法，定位到30 Cnc和32 Cnc，开始观测。
http://pic1.zhimg.com/v2-9390f310f293e81839b2a5eaf4fbd100_r.jpg
4点45开始定位到位置看，透明度不好，侧视隐约可见。
5点04再看，直视可见，彗头相对聚集，亮度比靠近的恒星稍亮，右边有三颗定位恒星。（星链过境）
5点15分清晰可见，目测亮度比右边两颗亮的定位星稍暗，比靠近的恒星亮，彗头聚集度很高，就像一个很遥远的球状星团，但是不是均匀的，而是稍扁，显不规则，未见彗尾（忽略已知方向时）。
5点22分接近晨光，依然清晰可见。
5点45分隐隐约约不可见，46分已然消失，此时太阳高度角-8°。
数据记录：
aug 30.88, 7, -- (Yuyuan, China, 0.2-m Newtonian);
拍摄图示和目镜指示如下：
参数：f/1.89 3s ISO2500 5.43mm(等效焦距25mm)；DOB 200mm F6 无跟踪
http://pic4.zhimg.com/v2-35c5f1449553b8023d4889d45b7b840b_r.jpg
http://pic1.zhimg.com/v2-76bfbd547ff649899c56cdff3ff9017c_r.jpg
以下图片源于网络：
http://pic1.zhimg.com/v2-b71af5d9dec6574eb6f9a1a54b54d450_r.jpg
http://pic4.zhimg.com/v2-5a7f8b66af07f6160ba5413c763c4357_r.jpg
ICQ观测记录如下：
C/2023 P1 (Nishimura)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
aug 30.18, 7.2, 5.1' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
30.12, 7.0, 5' (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 0.126-m Refractor; 10' tail in p.a. 270 deg);
30.10, 7.1, 5' (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 25x126.0 Binoculars);
30.05, 7.2, -- (N. Novikov, Russia, d. Enaberdino, 0.153-m Newtonian);
29.79, 7.4, 2.9' (O. Miyazaki, 11x80 Binoculars);
29.77, 7.2, 5' (S. Yoshida, 0.4-m Newtonian);
29.09, 7.2, 4' (C. Harder, Jeersdorf f, 0.252-m Newtonian);
28.81, 7.5, 5.8' (K. Yoshimoto, 0.072-m Camera lens + CCD; 2.5° tail in p.a. 287 deg);
28.48, 7.4, 5' (C. Hergenrother, 10x50 Binoculars);
28.36, 7.8, 1' (A. Amorim, 0.09-m Refractor);
28.26, 7.2, 5' (P. Pérez Corujo, La Lechuza. Vega de San Mateo. Gran Canaria, 20x80 Binoculars);
28.22, 8.9, 5.5' (M. Mašek, 0.067-m Camera lens + CCD; 0.6° tail in p.a. 284 deg);
28.22, 7.6, 6.9' (M. Mašek, 0.067-m Camera lens + CCD; 0.8° tail in p.a. 282 deg);
28.18, 7.1, 5.5' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
28.15, 7.2, 5' (C. Labordena, La Serra d Engarcera, 11x80 Binoculars);
28.12, 8.9, 7.3' (P. Dekelver, 0.3-m Newtonian + CCD; 27.8' tail in p.a. 284 deg);
28.09, 7.6, 4' (C. Harder, Jeersdorf f, 0.298-m Newtonian; 3' tail in p.a. 295 deg);
28.09, 7.6, 4' (C. Harder, Jeersdorf f, 0.298-m Newtonian; 3' tail in p.a. 295 deg);
28.08, 7.4, 3' (P. Guzik, 25x100 Binoculars);
27.51, 7.7, -- (A. Guerra, Vacaville, California, 0.07-m Refractor + CCD);
27.42, 7.5, 1.8' (D. Zubenel, Hoyt, Kansas, USA, 0.152-m Newtonian);
27.18, 7.9, 6.2' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
27.17, 7.3, 5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain; 0.4° tail in p.a. 280 deg);
26.99, 7.8, 3.1' (A. Novichonok, 0.038-m Refractor + CCD; 26' tail in p.a. 282 deg);
26.81, 7.5, 5.6' (K. Yoshimoto, 0.077-m Refractor + CCD; 1.5° tail in p.a. 280 deg);
26.81, 8.3, 2.5' (K. Yoshimoto, 0.077-m Refractor + CCD; 1.2° tail in p.a. 280 deg);
26.81, 8.3, 5.6' (K. Yoshimoto, 0.077-m Refractor + CCD; 1.2° tail in p.a. 280 deg);
26.13, 7.2, 3.2' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
26.13, 7.6, 4' (V. Gonano, Udine, Italy, 10x50 Binoculars);
26.12, 7.8, 8' (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 0.126-m Refractor; 1' tail in p.a. 270 deg);
26.12, 7.6, 3' (G. van Buitenen, Dordrecht, NL (G06), 11x70 Binoculars);
26.11, 7.8, 6' (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 25x126.0 Binoculars);
26.09, 7.8, 5.5' (M. Jaeger, Martinsberg Austria, 0.07-m Camera lens + CCD; 75° tail in p.a. 278 deg);
25.79, 8.6, 2.6' (C. Wyatt, 0.4-m Newtonian);
25.78, 8.7, 2.4' (O. Miyazaki, 0.32-m Newtonian);
25.49, 7.8, 3' (C. Hergenrother, 30x125.0 Binoculars);
25.49, 7.5, 5' (C. Hergenrother, 10x50 Binoculars);
25.15, 7.9, 5' (C. Labordena, Castellfort, 0.2-m Schmidt-Cassegrain; 15' tail);
25.14, 7.8, 5' (C. Labordena, Castellfort, 11x80 Binoculars);
25.08, 7.8, 4' (P. Guzik, 25x100 Binoculars);
24.78, 8.4, 2.5' (O. Miyazaki, 0.32-m Newtonian);
24.36, 8.0, 5' (W. Souza, 0.15-m Newtonian);
24.35, 8.0, 4' (J. de Souza Aguiar, 25x100 Binoculars);
24.11, 8.0, 3' (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 0.126-m Refractor; 1.5' tail in p.a. 270 deg);
24.10, 8.0, 2.5' (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 25x126.0 Binoculars);
24.09, 8.2, 4.9' (J. Cerny, 25x100 Binoculars);
23.47, 7.9, 2.5' (C. Hergenrother, 30x125.0 Binoculars);
23.36, 8.0, 5' (W. Souza, 0.15-m Newtonian);
23.35, 8.2, 4' (J. de Souza Aguiar, 25x100 Binoculars);
23.12, 9.6, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD; 19' tail in p.a. 279 deg);
23.12, 7.8, 6' (A. Scholten, Eerbeek, 0.2-m Newtonian);
23.08, 8.3, 4.6' (O. Guthier, 0.125-m Refractor);
23.07, 7.8, 5' (M. Reszelski, Szamotuly, Poland, 25x100 Binoculars);
22.93, 9.3, 0.6' (N. Tirawat, Astro 820 Near BKK ,Thailand, 0.076-m "small telescopes and finders" with aperture not exceeding 4 inches + CCD; 11.83' tail in p.a. 290 deg);
22.78, 8.3, 2.3' (O. Miyazaki, 0.32-m Newtonian);
22.36, 8.0, 2' (M. Goiato, 20x100 Binoculars);
22.36, 8.3, 5' (W. Souza, 0.15-m Newtonian);
22.36, 8.5, -- (A. Amorim, 0.09-m Refractor);
22.35, 8.5, 3' (J. de Souza Aguiar, 25x100 Binoculars);
22.17, 9.0, 5.5' (J. Chambó Bris, Valles, Valencia, Spain, 0.2-m Newtonian + CCD; 12' tail in p.a. 281 deg);
22.17, 9.6, 3.3' (J. Ryske, Fregenal de la Sierra Spain, 0.305-m Ritchey-Chretien + CCD; 23' tail in p.a. 280 deg);
22.16, 7.6, 6' (J. Gonzalez Suarez, 20x80 Binoculars);
22.15, 7.8, 5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain; 0.3° tail in p.a. 270 deg);
22.14, 9.2, 2.8' (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
22.12, 9.5, 5.5' (M. Lošťák, 0.2-m Newtonian + CCD);
22.12, 7.9, 6' (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 25x126.0 Binoculars);
22.09, 8.3, 2.5' (S. Szabo, Sopron, 15x80 Binoculars);
22.06, 8.2, 4' (T. Karhula, Virsbo, Sweden, 0.12-m Refractor);
21.82, 8.7, 3.3' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 12' tail in p.a. 273 deg);
21.79, 8.9, 3.5' (C. Wyatt, 0.25-m Newtonian);
21.36, 8.5, -- (A. Amorim, 0.09-m Refractor);
21.17, 8.7, 3.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
21.17, 8.7, 7' (T. Lehmann, Hakos (remote), 0.2-m Newtonian + CCD; 0.8° tail in p.a. 268 deg);
21.12, 10.2, 4.4' (P. Dekelver, 0.3-m Newtonian + CCD; 26.6' tail in p.a. 269 deg);
21.11, 8.9, 6.3' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.08° tail in p.a. 263 deg);
21.09, 8.3, 3' (M. Filipek, 0.25-m Newtonian);
21.08, 8.5, 5.6' (O. Guthier, 16x70 Binoculars);
21.08, 8.3, 3' (P. Guzik, 25x100 Binoculars);
21.08, 8.8, 2.2' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
21.04, 10.6, 0.96' (S. Shurpakov, 0.41-m Newtonian + CCD);
20.98, 9.1, 2.6' (A. Novichonok, 0.027-m Refractor + CCD);
20.78, 9.5, 1.9' (O. Miyazaki, 0.32-m Newtonian);
20.17, 9.2, 4.1' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
20.15, 8.5, 5' (C. Labordena, Culla, 0.15-m Newtonian);
20.14, 8.3, 5' (C. Labordena, Culla, 11x80 Binoculars);
20.12, 10.1, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD; 5.8' tail in p.a. 281 deg);
20.10, 8.2, 5' (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 25x126.0 Binoculars);
20.08, 8.1, 3.8' (J. Cerny, 25x100 Binoculars);
20.07, 8.1, 5' (M. Reszelski, Szamotuly, Poland, 25x100 Binoculars);
19.81, 9.1, 3.5' (K. Yoshimoto, 0.072-m Camera lens + CCD);
19.12, 9.0, 2' (G. Pappa, Pedara,Sicily,Italy, 0.3-m Camera lens + CCD);
19.11, 9.1, 6.6' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
19.11, 10.0, 3.7' (M. Lošťák, 0.2-m Newtonian + CCD);
19.08, 8.4, 4.1' (M. Mašek, 0.25-m Newtonian);
19.08, 8.3, 3' (M. Ray, 73x120 Binoculars);
19.08, 8.5, 5.5' (J. Cerny, 25x100 Binoculars);
19.06, 8.3, 3' (M. Reszelski, Szamotuly, Poland, 25x100 Binoculars);
19.06, 8.7, 4' (U. Pilz, 0.32-m Newtonian);
18.11, 8.7, 4' (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 25x126.0 Binoculars);
18.08, 8.5, 3.5' (J. Cerny, 25x100 Binoculars);
17.98, 9.6, 2.2' (A. Novichonok, 0.038-m Refractor + CCD);
17.47, 9.2, 2' (C. Hergenrother, 30x125.0 Binoculars);
17.35, 9.9, -- (J. de Souza Aguiar, 0.27-m Newtonian);
17.18, 8.7, 3' (A. Kammerer, Hakos Astrofarm, Namibia, 0.4-m Newtonian);
17.16, 9.8, 3' (J. Chambó Bris, Valles, Valencia, Spain, 0.2-m Newtonian + CCD);
17.15, 11.3, 0.94' (N. James, 0.28-m Schmidt-Cassegrain + CCD);
16.08, 9.2, 2.9' (J. Cerny, 25x100 Binoculars);
16.08, 9.2, 2.2' (J. Cerny, 0.355-m Newtonian);
15.35, 10.8, -- (J. de Souza Aguiar, 0.27-m Newtonian);
14.16, 9.3, 4' (J. Gonzalez Suarez, Alto del Castro, Spain, 1720 m, 0.203-m Schmidt-Cassegrain);
13.81, 9.9, 3' (K. Yoshimoto, 0.072-m Camera lens + CCD);
13.81, 10.0, 3.6' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD); 小白问一下彗星在哪个方向啊，高度角有多大？？ 西边有一座山不知道会不会被挡到 在日出之前，在没有光害的晴朗天空朝东北方向看金星的左方，可以看得最清楚。
页:
[1]