C/2012 L2 (LINEAR)

C/2012 L2 (LINEAR)
2013 July 03.40 UT: m1=11.2, Dia.=1.5′, DC=3... 30-cm Dobson... Con Stoitsis (Nagambie, Victoria, Australia) [Diffused coma. No tail observed]
2013 July 03.35 UT: m1=11.5, Dia.=1.9’, DC=2... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, averted vision, low altitude (6°), slight interference by fading twilight and zodiacal light]
2013 June 27.20 UT: m1=10.8, Dia.=1.5′, DC=2... 30-cm Dobson... Con Stoitsis (Nagambie, Victoria, Australia) [No tail observed]
2013 June 07.40 UT: m1=10.8, Dia.=2.9′, DC=2... 30-cm Dobson... Con Stoitsis (Nagambie, Victoria Australia) [The coma is obviously more defused towards the centre. No tail observed. Light meter reading at twilight 20.78 (during observation)]
2013 June 03.35 UT: m1=10.4, Dia.=3.3’, DC=1/2... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma appears circular, diffuse inner coma, enhances using Swan Band filter, no tail]
2013 May  19.35 UT: m1=10.5, Dia.=1.4’, DC=1/2... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Moonlight, coma very diffuse]
2013 May  13.93 UT: m1=8.9, Dia.=5′, DC=2... 20×100 B... Marco Goiato (Araçatuba, Brasil) [moonlight interference, clouds]
2013 May  11.93 UT: m1=8.7, Dia.=5′, DC=3... 20×100 B... Marco Goiato (Araçatuba, Brasil)
2013 May  09.36 UT: m1=9.6, Dia.=3.9’, DC=2... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [No tail, coma shows faint elongation to SW, weakly brightens to centre, Swan Band filter enhances coma slightly]
2013 May  07.36 UT: m1=9.9, Dia.=3.7’, DC=2/3... 25-cm L f:5 (39)... Chris Wyatt (Walcha, NSW, Australia) [No tail, coma edges diffuse and gradually brightens weakly to centre, Swan Band filter enhances inner half of coma]
2013 May  03.88 UT: m1=8.5:, Dia.=7′, DC=3... 20-cm SCT (77x)... Juan José González (Puerto de Aralla, alt. 1500 m, León, España) [Más brillante que lo previsto. Amplia coma difusa. Fin del crepúsculo astronómico. Muy baja altura: 3º. Cielo claro de montaña hasta el horizonte]
2013 May  03.35 UT: m1=9.4, Dia.=4.2’, DC=3... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma has diffuse edges which gradually brighten to centre. No tail.]
2013 May  01.36 UT: m1=9.8, Dia.=3.8’, DC=3... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Low alt, coma has vey diffuse edges and a broad, weakly graduating patch of light to the centre, the inner 2/3rds of the coma enhances slightly using Swan Band filter, no tail, coma appears circular]
2013 Apr. 22.35 UT: m1=10.1, Dia.=1.8’, DC=2... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Moonlight, no tail, low altitude, averted vision. Cloud interference at times, seeing average. Comparison stars=TASS-4... Method=S... Cat=TA]
2013 Apr. 22.13 UT: m1=[10.5... 15-cm SCT (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico) [negativa en 15-cm]
2013 Apr. 18.36 UT: m1=10.0, Dia.=2.7’, DC=2... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Moonlight, no tail, coma shows diffuse edges with slight brightening to centre. Enhances slightly using Swan Band filter and shows the coma diameter to 3.5’. Comparison stars: Tycho-2... Method= S... Cat=TA]
2013 Apr. 13.82 UT: m1=11.0, Dia.=1.3’, DC=5... 50.8-cm reflector (189x)... Sandor Szabo (Hungary) [Only 5 degree from Moon, but easy to see]
2013 Apr. 12.84 UT: m1=11.4, Dia.=2′, DC=3, no tail... 23.5-cm SCT (67x)... Carlos Labordena (Castellón, España)
2013 Apr. 12.14 UT: m1=11.0, Dia.=2′, DC=3... 15-cm SCT (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico) [Cola: no visible]
2013 Apr. 10.94 UT: m1=10.4, Dia.=2.5′, DC=2... 22-cm L (160x)... Marco Goiato (Araçatuba, Brasil)
2013 Apr.  02.39: UT m1=11.0, Dia.=3′... 25.4-cm L (71x)... David A. J. Seargent (Cowra, NSW, Australia) [No obvious change using swan band filter. Low elevation and twilight glow]
2013 Mar. 30.94 UT: m1=10.8, Dia.=1.5′, DC=3... 22-cm L (160x)... Marco Goiato (Araçatuba, Brasil)
2013 Mar. 30.88 UT: m1=10.5, Dia.=3′, DC=3... 20-cm SCT (77x)... Juan José González (Granja de Moreruela, alt. 705 m, Zamora, España)
2013 Mar. 29.95 UT: m1=10.8, Dia.=1.5′, DC=3... 22-cm L (160x)... Marco Goiato (Araçatuba, Brasil) [No or little image enhance with comet filter]
2013 Mar. 24.01 UT: m1=8.0 CCD, Dia.=0.7’, Tail= 0.9′ PA: 56°...  CCD images unfiltered... Clermont Vallière (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, CANADA) [comparison star 3UCAC 231-018774 mag.=9.929]
2013 Mar. 07.10 UT: m1=11.0, Dia.=2′, DC=3, Tail: Not visible... 15-cm SCT (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2013 Mar. 05.78 UT: m1=11.0, Dia.=2.0′, DC=3... 42-cm L f:5 (81x)... Martin Lehky (Hradec Kralove, Czech Republic)
2013 Mar. 05.54 UT: m1=11.4 CAC... Camera 500D + 200mm lens f/2.8... Man-To Hui (Canton, China)
2013 Mar. 04.78 UT: m1=11.0, Dia.=2.1′, DC=3... 42-cm L f:5 (81x)... Martin Lehky (Hradec Kralove, Czech Republic)
2013 Mar. 04.75 UT: m1=11.3, Dia.=3′, DC=1/2... 25-cm L (77x)... Maciej Macidym (Chlebna, Poland)
2013 Mar. 03.10 UT: m1=11.0, Dia.=2′, DC=3, Tail= not visible... 15-cm SCT (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2013 Mar. 02.81 UT: m1=11.6, Dia.=1′, DC=3, Tail= 0.05 degree AP: 86°... 32-cm L f/5 (96x)... Uwe Pilz (Leipzig, Germany)
2013 Mar. 01.83 UT: m1=10.3, Dia.=4′, DC=2/... 20-cm SCT (77x)... Juan José González (Piedrafita de Babia, alt. 1240 m, León, España) [Coma difusa elongada hacia PA 50º]
2013 Feb. 28.75 UT: m1=10.8, Dia.=2.2′, DC=3, 40-cm reflector (154x)... Sandor Szabo (Sopron, Hunagry)
2013 Feb. 10.78 UT: m1=10.6, Dia.=2′, DC=s5, Tail=-- AP: 270°... 32-cm L f/5 (96x)... Uwe Pilz (Leipzig, Germany)
2013 Feb. 08.86 UT: m1=11.3, Dia.=1.8′, DC=3/... 20-cm SCT (100x)... Juan José González (Pandorado, alt. 1190 m, León, España)
2013 Feb. 08.77 UT: m1=11.1, Dia.=2′, DC=d3-4... 25-cm reflec. (100x)... Gabor Santa (Nagy-Hideg-hegy, Hungary) [59 deg above horizon. Very nice comet, round shaped coma opens a little by east (starting to show tail?)]
2013 Feb. 07.937 UT: m1=11.5, Dia.=1.3′, DC=d4... 25-cm reflec. (100x)... Gabor Santa (Nagy-Hideg-hegy, Hungary) [26 deg above horizon]
2013 Feb. 06.10 UT: m1=11.5, Dia.=2´, DC=2, Tail: Not visible... 15-cm SCT (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2013 Jan. 17.08 UT: m1=12.9 C CCD, Dia.=&1.5′... 11-cm R + CCD... Artyom Novichonok (remotely from Mayhill, U.S.A.)
2013 Jan. 11.82 UT: m1=13.5, Dia.=0.7′, DC=4... 50.8-cm L (189x)... Sandor Szabo (Hungary)
2013 Jan. 07.78 UT: m1=12.0, Dia.=1.5′, DC=3, no tail... 23.5-cm SCT (94x)... Carlos Labordena (Castellón, España)
2013 Jan. 03.87 UT: m1=11.8, Dia.=1.8′, DC=3/... 20-cm SCT (133x)... Juan José González (Aralla, alt. 1440 m, León, España)
2012 Nov. 06.83 UT: m1=14.7, Dia.=0.3′, DC=7... 20-cm SCT (133x)... Juan José González (Pandorado, alt. 1190 m, León, España)[Estrellas de campo comprobadas en el DSS. Estrellas de comparación de la fotometría Henden de Z Umi. Cielo muy claro de montaña]
2012 Sep. 17.05 UT: m1=17.7, DC=6... Visual 36″ F/ 3.5... Jean-François Viens (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)