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* * * * * C/2018 N1 (NEOWISE) * * * * *
Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2018 10 3.81 S 10.0 TK 20.3T 77 4 2 GON Alto del Castro, León (Altitude 9°.) 2018 9 8.39 S 12.9 AQ 25.0L 83 1.8 1/ WYA Walcha, NSW (Very difficult, diffuse.) 2018 9 7.43 S 12.4 AQ 25.0L 83 2 2 WYA Walcha, NSW (Coma very diffuse, slight brightening to centre. Thunderstorms and lightning in vicinity making obs difficult.) 2018 9 6.45 S 12.3 AQ 40.6L 76 2.5 1 CAM Katherine, NT 2018 9 3.45 S 12.2 AQ 40.6L 76 2.5 1 CAM Katherine, NT 2018 9 1.86 S 9.3 TK 20.3T 77 10 2 GON Alto del Castro, León (Several stars inside the coma, the brightest being mag. 10.1 [TK]. Altitude 18°.) 2018 9 1.45 S 12.0 AQ 40.6L 76 3 1/ CAM Katherine, NT 2018 8 31.43 S 12.0 AQ 40.6L 76 3 2 CAM Katherine, NT 2018 8 14.89 S 8.9 TK 20.3T 77 9 2 GON Alto del Castro, León (Altitude 21°.) 2018 8 14.47 S 10.4 TK 25.0L 39 5.4 2 WYA Walcha, NSW (Coma very diffuse, transparent and weakly condensed. Enhances slightly in Swan band filter.) 2018 8 13.46 S 10.0 TK 40.6L 76 6 1/ CAM Katherine, NT 2018 8 13.38 S 10.2 TK 25.0L 39 6.4 3 WYA Walcha, NSW (Coma diffuse and transparent with slight brightening to an opaque centre.) 2018 8 11.47 S 9.8 TK 40.6L 76 8 2/ CAM Katherine, NT 2018 8 10.48 S 10.0 TK 40.6L 76 6 1 CAM Katherine, NT 2018 8 10.09 S 9.6 TK 10.0B 20 7 1/ GOI Araçatuba 2018 8 10.06 S 9.8 TK 22.0L 60 5 2 GOI Araçatuba 2018 8 9.89 S 8.8 TK 20.3T 77 10 2 GON Alto del Castro, León (Diffuse and wide coma. Observation made under better conditions, providing a wider coma diameter and brighter m1 estimate in comparison with my previous Aug. 7 observation. Altitude 22°.) 2018 8 9.46 S 10.0 AQ 40.6L 76 4 1/ CAM Katherine, NT 2018 8 8.39 S 9.8 TK 25.0L 39 5.2 2/ WYA Walcha, NSW (Very diffuse, transparent coma, weakly condensed.) 2018 8 7.96 S 9.2 TK 20.3T 77 8 1/ GON Alto del Castro, León (Altitude 12°.) 2018 8 7.46 S 9.0:TK 8.0R 36 8 2 CAM Katherine, NT 2018 8 6.59 S 9.7 TK 25.0L 39 10 2 WYA Walcha, NSW (Coma visible as a large weakly condensed patch of light. Enhances well in Swan Band filter. Sky background appears light in colour due to nearby rho Ophiuchi region.) 2018 8 6.43 S 9.5 TK 8.0B 20 8 2 CAM Katherine, NT 2018 8 5.897 aS 9.2 TK 15.6L 29 5 1 BOU Lauwersoog (Comet altitude 7.4° with Sun 14.5° below horizon. Very diffuse object.) 2018 8 4.43 S 9.3 TK 8.0B 20 10 1/ CAM Katherine, NT 2018 8 2.35 S 9.1 TK 25.0L 39 9.3 3 WYA Walcha, NSW (Coma diffuse, weakly condensed.) 2018 8 1.91 S 8.5 TK 20.3T 77 11 1/ GON Alto del Castro, León (Very diffuse and wide coma. Altitude 18°.) 2018 8 1.39 S 9.3 AA 10.0B 25 6 2 SEA Cowra, NSW (Rather slight but noticeble enhancement using Swan Band filter. Very diffuse and of low surface brightness.) 2018 8 1.35 S 9.8 TK 25.0L 39 8.3 2 WYA Walcha, NSW (Faint stars in coma. Coma large, transparent and diffuse. Enhances slightly in Swan Band filter.) 2018 7 31.90 S 8.5 TK 20.3T 77 12 1/ GON Alto del Castro, León (Very diffuse and wide coma. Altitude 16°.) 2018 7 31.43 S 9.0 TK 8.0B 20 10 1/ CAM Katherine, NT 2018 7 30.35 S 9.2 TK 25.0L 39 7 2 WYA Walcha, NSW (Coma very diffuse and large. Enhances slightly in Swan Band filter.) 2018 7 23.78 S 8.8 TK 8.0R 36 10 3 CAM Katherine, NT 2018 7 23.74 M 9.5 TK 25.0L 39 9 4 WYA Walcha, NSW (Coma large and diffuse. Moderately condensed opaque centre, faint star in coma.) 2018 7 22.79 S 9.0 TK 8.0R 36 12 2 CAM Katherine, NT 2018 7 22.09 S 8.3 TK 20.3T 77 15 2 GON Quintanilla de los Oteros, León (Very diffuse and wide coma. Altitude 17°.) 2018 7 21.78 S 9.0 TK 8.0R 36 10 2 CAM Katherine, NT 2018 7 20.79 S 9.2 TK 8.0R 36 10 1 CAM Katherine, NT 2018 7 20.73 S 9.7 TK 25.0L 39 5.2 3 WYA Walcha, NSW (Coma large and diffuse, slight brightening to centre.) 2018 7 18.75 M 9.9 TK 25.0L 39 6.8 3/ WYA Walcha, NSW (Coma large and diffuse. Enhances in Swan Band filter.) 2018 7 18.19 S 11.1 TK 22.0L 160 3 2 GOI Araçatuba 2018 7 18.11 S 8.8 TK 20.3T 77 12 1/ GON Alto del Castro, León (Mag. 11.0 [TK] star in coma.) 2018 7 17.78 S 10.0 TK 40.6L 76 7 2/ CAM Katherine, NT 2018 7 16.78 S 10.1 TK 40.6L 76 6 2/ CAM Katherine, NT 2018 7 16.72 S 10.1 TK 25.0L 39 5.5 3 WYA Walcha, NSW (Close to bright star. Weakly condensed. Coma slightly elongated to NW. Enhances in Swan Band filter.) 2018 7 15.55 S 10.7 AQ 25.0L 39 4 2/ WYA Walcha, NSW (Low altitude 17.2°. Coma very diffuse and weakly condensed. Enhances in Swan band filter.) 2018 7 15.25 S 11.7 AU 22.0L 160 3 2/ GOI Araçatuba 2018 7 13.75 S 10.3 TK 25.0L 39 5 3 WYA Walcha, NSW (Faint stars in coma. Very diffuse coma, slightly brighter but weakly condensed centre. Enhances in Swan Band filter.) 2018 7 13.72 S 12.0 AU 40.0L 144 1.8 2/ YOS Kita-karuizawa, Gunma (Diffuse.) 2018 7 11.75 S 11.1 AQ 25.0L 39 4.1 2/ WYA Walcha, NSW (Coma enhances in Swan Band filter. Very diffuse, weakly condensed.) 2018 7 10.77 S 10.9 TK 40.6L 76 6 2 CAM Katherine, NT 2018 7 10.10 S 9.4 TK 20.3T 77 12 1/ GON Alto del Castro, León (Brighter than expected. From dark mountain skies the comet shows a large and very diffuse outer coma. Field stars checked in DSS. Altitude 17°.) 2018 7 9.64 S 11.5 AQ 25.0L 83 3.3 3 WYA Walcha, NSW (Coma diffuse, opaque centre. Close to mag 11.8 star. Visible at 39x but difficult to separate from star.) 2018 7 8.79 M 11.4 AQ 40.6L 76 4 2 CAM Katherine, NT