117P/Helin-Roman-Alu 1

117P/Helin-Roman-Alu 1
Reported observations:
2016 Dec. 06.87 UT: m1=17.2 CCD, Dia.=0.29′, DC=8, Tail= 1.2’in PA: 256 deg ... 0.25-m L f/4.7... Sergey Shurpakov (C36, Baran’, Belarus)
2016 Nov. 24.90 UT: m1=17.1 CCD, Dia.=0.10′, DC=8/ ... 0.25-m L f/4.7... Sergey Shurpakov (C36, Baran’, Belarus)
2016 Sep. 10.03 UT: m1=17.5 CCD, Dia.=0.16′, DC=8/ ... 0.25-m L f/4.7 + CCD... Sergey Shurpakov (C36, Baran’, Belarus)
2016 Sep. 06.06 UT: m1=17.7 CCD, Dia.=0.15′, DC=8/, Tail= 0.35′ in PA: 269 deg ... 0.25-m L f/4.7 + CCD... Sergey Shurpakov (C36, Baran’, Belarus)
2016 Aug. 31.99 UT: m1=17.9 CCD, Dia.=0.16′, DC=9, Tail= 0.81′ in PA: 264 deg ... 0.25-m L f/4.7 + CCD... Sergey Shurpakov (C36, Baran’, Belarus)
2015 Nov. 11.94 UT: m1=14.8, Dia.=0.9′, DC=1 ... 50.8-cm L (307x)... Sandor Szabo (Sopron, Hungary)
2015 Oct. 15.88 UT: m1=15.1: CCD, Dia.=&0.5′, Tail= 1.4′ in PA: 230 deg ... [T16] 0.15-m f/7.3 refractor + CCD... A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Sep. 13.48 UT: m1=15.6 CCD, Tail= 2.6′ in PA: 247 deg ... [T20] 0.1-m f/5.0 astrograph + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 Sep. 12.98 UT: m1=15.2, Dia.=0.4′, DC=4 ... 60.3-cm L (305x)... Sandor Szabo (Sopron, Hungary)
2015 Aug. 17.81 UT: m1=16.0 CCD, Dia.=0.3′, Tail= 1.4′ in PA: 249 deg ... [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 Remotely from Siding Spring, Australia)
2015 July 23.14 UT: m1=15.7 CCD, Dia.=0.5′ Tail= 2.6′ in PA: 246 deg ... [T16] 0.15-m f/7.3 refractor + CCD... A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 June 13.83 UT: m1=16.1 CCD Dia.=0.3′ Tail= 0.7′ in PA: 240 deg... [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2014 Dec. 20.43 UT: m1=15.2 CCD, Dia.=0.3′ ... [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2014 Nov. 16.46 UT: m1=14.6 CCD, Dia.=0.5′, Tail= 0.4′ in PA: 222 deg ... [T12]0.11m f/5.0 refractor + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62, remotely from Siding Spring, Australia)
2014 Oct. 25.41 UT: m1=13.5, Dia.=0.5′, DC=3 ... 40.0-cm L f/4.5 (257x)... Seiichi Yoshida (Gunma, Japan)
2014 Oct. 12.41 UT: m1=14.2 CCD, Dia.=0.8′, Tail=&3′ in PA: 263 deg ... [T12]0.11m f/5.0 refractor + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62, remotely from Siding Spring, Australia)
2014 Sep. 28.04 UT: m1=14.0, DC=4 ... Visual 36″ F/3.5... Jean-François Viens (Cd’OA des Monts Notre-Dame, Québec, Canada)
2014 Sep. 11.38 UT: m1=13.4: CCD, Dia.=&1.7′, Tail=&2′ in PA: 295 deg ... [T9] 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62, remotely from Siding Spring, Australia)
2014 Aug. 31.38 UT: m1=13.2: CCD, Dia.=&1.3′, Tail=&2.0′ in PA: 308 deg ... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62, remotely from Siding Spring, Australia)
2014 Aug. 20.09 UT: m1=12.9, Dia.=0.5′, DC=4 ... 22-cm L (160x)... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2014 Aug. 19.14 UT: m1=12.8, Dia.=0.5′, DC=4 ... 22-cm L (160x)... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2014 July 19.59 UT: m1=13.3 CCD, Dia.=1.04′, Tail= 4.9′ in PA: 262 deg ... 0.43-m f/6.8 astrograph + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely Siding Spring, Australia)
2014 June 25.54 UT: m1=14.0 CCD, Dia.=0.51′, Tail= 2.7′ in PA: 257 deg ... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 Remotely from Siding Spring, Australia)
2014 May  27.44 UT: m1=14.2 CCD, Dia.=0.80′ Tail= 8.7′ in PA: 258 deg ... 0.1-m f/5.0 astrograph + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely Mayhill, U.S.A.)
2014 May  23.62 UT: m1=14.4 CCD, Dia.=0.35′, Tail= 1.2′ in PA: 259 deg ... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2014 Apr. 28.74 UT: m1=14.8: CCD, Dia.=&0.4′, Tail= 2′ in PA: 256 deg ... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely Siding Spring, Australia) [close to bright star 16 Cap (Pazhan)]
2014 Mar. 05.77 UT: m1=14.9 CCD, Dia.=0.26′, Tail= 0.8′ in PA: 266 deg ... 0.50-m f/6.8 astrograph + CCD + focal reducer... A. Novichonok & T. Prystavski (iTelescope observatory, Q62. Remotely from Siding Spring, Australia))
2014 Feb. 06.78 UT: m1=15.2 CCD, Dia.=0.24′ ... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62. Remotely Siding Spring, Australia)
2013 Sep. 21.39 UT: m1=14.9 CCD, Dia.=0.59′, Tail= 0.9′ in PA:315 deg ... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T.Prystavski (iTelescope observatory, Q62. Remotely Siding Spring, Australia)
2013 Sep. 03.41 UT: m1=14.7 CCD, Dia.=0.65′, Tail= 0.8′ in PA:302 deg ... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T.Prystavski (iTelescope observatory, Q62. Remotely Siding Spring, Australia)
2013 July 29.38 UT: m1=14.7: CCD, Dia.=&0.6′, Tail= 1.6′ in PA: 310 deg ... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T.Prystavski (iTelescope observatory Q62. Remotely Siding Spring, Australia)
2013 July 08.45 UT: m1=14.3, Dia.=0.6’, DC=2 ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Averted vision, difficult due to scintillation effects, averted vision]
2013 July 02.44 UT: m1=14.2, Dia.=0.5’, DC=2 ... 25-cm L f:5 (167x)... Chris Wyatt (Walcha, NSW, Australia) [Averted vision, coma diffuse with small diffuse central condensation during periods of good seeing.]
2013 June 29.19 UT: m1=14.6 CCD, Dia.=0.5′, Tail= 0.3′ in PA: 316 deg ... 0.11-m f/5.0 refractor + CCD... A. Novichonok & T.Prystavski (iTelescope observatory H06. Remotely Mayhill, U.S.A.)
2013 June 03.39 UT: m1=14.0, Dia.=0.7’, DC=2 ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse with slightly brighter central condensation, averted vision, observed over a period of 25 minutes]
2013 June 01.26 UT: m1=14.5 CCD, Dia.=0.63′, Tail= 1.2′ in PA: 303 deg ... 0.11-m f/5.0 refractor + CCD... A. Novichonok & T.Prystavski (iTelescope observatory, H06, remotely Mayhill, U.S.A.)
2013 May  27.18 UT: m1=14.6 CCD, Dia.=0.3’ ... CCD images unfiltered... Clermont Vallière (Cd’OA des Monts Notre-Dame, Québec, Canada)
2013 May  15.21 UT: m1=14.5 CCD, Dia.=0.2’, Tail= 2,6′ PA: 304°... CCD images unfiltered... Clermont Vallière (Cd’OA des Monts Notre-Dame, Québec, Canada)
2013 May  02.14 UT: m1=14.8, DC=3 ... Visual Aperture 36″ F/3.5... Jean-François Viens (Cd’OA des Monts Notre-Dame, Québec, Canada)
2013 Apr. 30.25 UT: m1=14.4 CCD, Dia.=0.52′, Tail= 1.7′ in PA: 293 deg ... 0.51-m f/4.5 reflector + CCD... A. Novichonok & T.Prystavski (iTelescope observatory, H06 (remotely Mayhill, U.S.A.)
2013 Apr. 22.27 UT: m1=16.3 CCD, Dia.=0.3’, Tail= 0,9′ PA: 304° ... CCD images unfiltered... Clermont Vallière (Cd’OA des Monts Notre-Dame, Québec, Canada)
2013 Apr. 13.94 UT: m1=15.3, Dia.=0.2’, DC=7 ... 50.8-cm reflector (250x)... Sandor Szabo (Hungary) [Very small and compact comet, motion was checked in 60 min. period]
2013 Apr. 07.18 UT: m1=15.3, DC=4 ... Visual, Aperture 36″ F/3.5... Jean-François Viens (Centre d’Observation Astronomique des Monts Notre-Dame, Québec, Canada)
2005 July 02.93 UT: m1=13.6, Dia.=1', DC=3 ... 45-cm L (100x)... J. Carvajal (Avila, Spain)