* * * * * C/2014 Q1 (PANSTARRS) * * * * *

Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2015 10 3.41 S 12.9 AQ 25.0L 83 1 1/ WYA Walcha, NSW (Coma very diffuse, very weakly condensed. Low altitude 17.4°.) 2015 9 22.39 S 12.1 TK 25.0L 83 0.9 2 WYA Walcha, NSW (Moonlight. No tail visible. Coma very diffuse and weakly condensed.) 2015 9 2.93 S 10.7 AU 22.0L 60 2 3/ GOI Araçatuba 2015 8 20.93 S 9.5 TK 22.0L 60 3 3 GOI Araçatuba 2015 8 18.36 M 9.2 TK 40.6L 76 1.8 4 CAM Warners Bay, NSW 2015 8 18.35 M 9.3 TK 25.0L 39 2.4 5/ 17m 130 WYA Walcha, NSW (Moonlight and twilight. Dusttails faintly visible. Type III tail is 16 in length in p.a. 20 deg. Inner coma appears as an elongated diffuse patch, opaque and pale blue in colour, is about 2.5 in width with centreline in p.a. 106 deg. Central condensation sometimes stellar in good seeing.) 2015 8 17.38 M 9.0 TK 40.6L 76 2 4 CAM Warners Bay, NSW 2015 8 16.37 M 9.0 TK 40.6L 76 2 5 CAM Warners Bay, NSW 2015 8 15.93 S 8.9 TK 10.0B 20 3 3 GOI Araçatuba 2015 8 13.93 S 8.8 TK 10.0B 20 3 3/ GOI Araçatuba 2015 8 13.36 M 9.0 TK 40.6L 76 2 4 CAM Warners Bay, NSW 2015 8 11.93 S 8.6 TK 10.0B 20 3 3/ GOI Araçatuba 2015 8 10.38 M 8.9 TK 25.0L 39 3 6 0.7 115 WYA Walcha, NSW (Type III dust tail visible 43 in length in p.a. 25 deg. Diffuse and opaque inner coma enhances moderately. Type III tail brighter than Type II.) 2015 8 10.36 M 8.4 TK 40.6L 76 1.5 4 15m 110 CAM Warners Bay, NSW 2015 8 9.93 S 8.4 TK 10.0B 20 4 3/ GOI Araçatuba 2015 8 8.37 M 8.2 TK 40.6L 76 2 3 CAM Warners Bay, NSW 2015 8 7.93 S 8.3 TK 10.0B 20 4 3/ GOI Araçatuba 2015 8 7.35 M 8.5 TK 25.0L 39 2.3 5/ 50m 126 WYA Walcha, NSW (Inner coma bright, opaque, pale-aqua blue in colour and fanned with centre line p.a. at 113 deg. and approximately 5 in length and 3.5 in width at its extremity. Enhances in Swan Band filter. The Type II tail extends beyond the fan-shaped extension but fades rapidly and is transparent out to its extremity. The Type III tail is slightly curved with convex side to the NW. It traces to 57 in length in p.a. 33 deg. A broad semi-transparent patch in the tail is visible 17 in length and 4.5 in width approximately at its widest point 8.5 from coma centre and tapers back into the line of the tail where the tail fades and fans out to full transparency at its extremity.) 2015 8 6.93 S 8.2 TK 10.0B 20 4 3/ GOI Araçatuba 2015 8 5.34 M 8.0 TK 40.6L 76 2 4 CAM Warners Bay, NSW 2015 8 4.92 S 7.9 TK 10.0B 20 3 3/ GOI Araçatuba 2015 8 4.35 M 7.8 TK 40.6L 76 2 4 20m 105 CAM Warners Bay, NSW 2015 8 3.35 M 7.8 TK 8.0R 35 5 4 CAM Warners Bay, NSW 2015 8 2.92 S 7.9 TK 10.0B 20 4 4 GOI Araçatuba 2015 8 2.36 M 7.3 TK 5.0B 7 6.5 5 28m 118 WYA Walcha, NSW (Also type III dust tail visible, 50 in length in p.a. 34 deg. Type III dust tail more noticeable than the other tail in brightness. Coma does not appear to enhance in Swan Band filter.) 2015 8 2.35 M 7.8 TK 25.0L 39 2.0 6 51m 118 WYA Walcha, NSW (Outer coma diffuse, central condensation small, stellar and pale aqua-blue in colour. Inner coma opaque and fans out in direction of the Type III dust tail, tapering off in brightness approximately 6 from coma centre. Type II dust tail 12 width at extremity. Type III dust tail more prominent than the Type II tail and traces out to 42 in length in p.a. 27 deg., 9.7 width at extremity. Inner coma and central condensation enhance in Swan Band filter.) 2015 8 1.92 S 7.5 TK 5.0B 7 4 3 GOI Araçatuba 2015 8 1.35 M 7.8 TK 25.0L 39 1.6 6 32m 118 WYA Walcha, NSW (Outer coma diffuse and transparent. Inner coma opaque, aqua-blue in colour. Fan-shaped extension to about 4 from the faintly stellar central condensation in the direction of the Type II tail. Two dust tails visible, the Type II or Eastward directed tail fans out to around 10 in width at its extremity. The Type III dust tail is faintly visible to around 8.2 in pa.a. 27 deg. Inner coma enhances in Swan Band filter. Twilight and slight interference by the rising Moon.) 2015 7 31.35 M 7.7 TK 25.0L 39 2.3 5/ 0.3 115 WYA Walcha, NSW (Bright moonlight. Slight twilight interference. Altitude 20.6°. Type II dust tail faintly traceable. Outer coma very faint and washed out in background sky, Inner coma fanned in direction of the Type II tail, opaque, aqua-blue in colour. Enhances in Swan Band filter.) 2015 7 31.34 M 7.8 TK 8.0B 20 3 4 CAM Warners Bay, NSW 2015 7 30.92 S 7.2 TK 10.0B 20 4 4 GOI Araçatuba (Moonlight.) 2015 7 29.35 M 7.6 TK 25.0L 39 2.7 5/ 0.5 115 WYA Walcha, NSW (Moonlight, twilight. Altitude 18.8°. Also dust tail visible 10.5 in length in p.a. 33 deg. Swan Band filter enhances inner coma. Inner coma opaque and elongated in the direction of the ion tail. Central condensation small and sometimes stellar in good seeing.) 2015 7 29.34 M 7.5 TK 8.0R 16 5 3 CAM Warners Bay, NSW 2015 7 28.34 M 6.7 TK 8.0B 20 5 4 CAM Warners Bay, NSW 2015 7 27.36 M 6.7 TK 7.0B 11 6.2 5 28m 120 WYA Walcha, NSW (Moonlight, twilight. Low altitude 14.8°. Also faint dust tail visible 20 in length in p.a. 28 deg. Coma diffuse, central condensation moderately condensed. Swan Band filter enhances central condensation only, appears disc-like, almost stellar.) 2015 7 27.34 M 6.4 TK 8.0B 20 6 4 CAM Warners Bay, NSW 2015 7 26.93 S 6.1 TK 5.0B 7 6 4 GOI Araçatuba (Moonlight. Comet altitude 14°.) 2015 7 26.92 S 6.3 TK 10.0B 20 5 4/ GOI Araçatuba (Nautical twilight, moonlight. Comet altitude 17°.) 2015 7 26.34 M 6.0 TK 8.0B 20 6 4 40m 120 CAM Warners Bay, NSW 2015 7 26.34 M 6.9 TK 25.0L 39 1.6 6 0.5 115 WYA Walcha, NSW (Moonlight, twilight. Altitude 19.0°. Inner coma and central condensation enhances in Swan Band filter. Observation interrupted by cloud.) 2015 7 25.92 sS 5.7 TK 5.0B 7 6 4 GOI Araçatuba (Nautical twilight, moonlight, comet altitude 16°.) 2015 7 23.36 S 5.8 AA 8.0B 15 & 2 SEA Cowra, NSW (Type III tail about 1° long.) 2015 7 22.92 S 5.2 TK 10.0B 20 6 4/ GOI Araçatuba 2015 7 22.92 S 5.1 TK 5.0B 7 8 4 GOI Araçatuba (Nautical twilight. Comet altitude 14°.) 2015 7 21.35 M 5.6 TK 7.0B 11 3.5 6 1.7 120 WYA Walcha, NSW (Moonlight, twilight. low altitude 10.8°. Also broad dust tail visible 21 in p.a. 36 deg. Central condensation enhances strongly in Swan Band filter, outer coma does not. Transparent outer coma with small stellar central condensation, white in colour.) 2015 7 21.34 M 5.4 TK 8.0B 20 3 5 2.0 110 CAM Warners Bay, NSW 2015 7 20.91 S 4.9 TK 2.5B 8 8 4 GOI Araçatuba (Nautical twilight. Comet altitude 11°.) 2015 7 20.35 B 5.4 AA 10.0B 25 2.5 100 SEA (Comet visible in 2.5x25 opera glass. Type III tail 0.4° long.) 2015 7 20.34 M 5.0 TK 8.0R 35 2 6 1.0 130 CAM Warners Bay, NSW 2015 7 20.34 M 5.4 TK 7.0B 11 7 6 2.3 117 WYA Walcha, NSW (Moonlight, twilight. Low altitude 10.1°. Also dust tail visible 16 in p.a. 36 deg. superimposed over bright star of magnitude 5.2. Ion tail fans out to approximately 16 in width at its extremity. Coma enhances strongly in Swan Band filter. Transparent outer coma with small stellar central condensation. Through 25cm-L at 39x the coma appears aqua-blue in colour. Observation session ended by cloud interference.) 2015 7 19.91 S 4.9 TK 2.5B 8 8 4 GOI Araçatuba (Nautical twilight. Comet altitude 10°.) 2015 7 19.33 B 5.3 AA 10.0B 25 2.0 7 2.0 104 SEA Cowra, NSW (Type III tail 0.3° long in p.a. 30 deg.) 2015 7 17.35 B 5.2 AA 10.0B 25 0.6 8 1.3 90 SEA Cowra, NSW (Comet was a striking sight. Pale yellow colour. Secondary tail [Type III, 0.3° long in p.a. 20 deg.] appeared broad and diffuse, less intense than the main one.) 2015 7 16.34 M 5.2 TK 8.0B 20 2 7 1.0 110 CAM Warners Bay, NSW 2015 6 1.81 M 9.9 AQ 25.0L 83 1.1 3/ WYA Walcha, NSW (Moonlight. Low altitude 7.7°. Coma shows diffuse edges, brighter inner coma, opaque but weakly condensed centre. Does not enhance in Swan Band filter.)