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Ison comet survives the perihelion

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C/2012 S1 ISON BY HUBBLE SPACE TELESCOPE IN NOVEMBER

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SPECTRA OF COMET C/2012 S1 ISON

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ISON spectrum 300 l/mm (A/P=4.2). Background subtracted (20x20 binning). The ISON looks more NH2 prominent than C2 , Author : Vikrant Kumar ( Member of Cometary Investigation Astrophysics Group CIAG FB ), the comet show emission lines of CN , CO+, OH , NH , CH+ .. , the comet ison is rich in volatiles ices of ammonium , water , and HCN .

SPECTRUM OF COMET C/2013 R1 LOVEJOY

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Credit image : Vikrant Kumar , Comet Love Joy (C2013 R1) spectral analysis, 10.11.13, 02:20AM. see more lines 3079 1 #OH+ 3162 1 #CN+ 3210 1 #OH+ 3254 1 #CO2+ 3264 1 #CN+ 3317 1 #NH 3360 1 #NH 3370 1 #NH 3378 1 #CO2+ 3584 1 #CO/N2/N2+ 3589 1 #CO+ 3590 1 #CN 3597 1 #CO+ 3781 1 #CN 3883 1 #CN+/CN* 3954 1 #CH+ 3963 1 #CH+ 3976 1 #CH+ 3914 1 #N2+ 4056 1 #C3 4217 1 #CN 4231 1 #CH+ 4239 1 #CH+ 4254 1 #CH+ 4233 1 #CH+ 4238 1 #N2+ 4250 1 #CO+ 4257 1 #CO+ 4300 1 #CH 4310 1 #CH 4380 1 #C2 4738 1 #C2 4745 1 #C2 4753 1 #C2 4723 1 #C2 4702 1 #C2 5140 1 #(CN)2 5165 1 #C2 5636 1 #C2 5980 1 #NH2 6060 1 #NH2 6122 1 #C2 6331 1 #NH2 6340 1 #NH2 6620 1 #NH2 6761 1 #CH 7699 1 #CN —

NASA IRTF WORKING FOR COMET ISON

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One image at K (2.3microns) from the IRTf of ISON COMET ... Credit image of P.Yanamandra-Fisher ( CIOC_ISON & CIAG _FB)

154P/BREWINGTON by Faulkes Telescope South

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Lyman alpha emissions at 121.6 nm in the extreme ultraviolet from the hydrogen coma of a comets C/2012S1 , 2P/Encke and C/2013 R1 Lovejoy

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Lyman alpha emissions at 121.6 nm in the extreme ultraviolet from the hydrogen coma of a comet must be monitored from outside earth's atmosphere. Spacecraft such as SOHO SWAN instrument and SWIFT UVOTS can see in Lyman alpha. Also the process of charge exchange generates X-Rays. Lyman alpha and X ray emission in comets has been observed in comets with SWIFT XRT, XMM-Newton, CHANDRA ACIS, ROSAT Deep Survey Camera HRI, Extreme Ultraviolet Explorer satellite (EUVE), Odin satellite, OGO-5 satellite, GALEX Near Ultraviolet (NUV), and Orbiting Astronomical Observatory (OAO-2). Stunning image SWAN / SOHO of the day October 29, 2013, which has captured the Lyman-Alpha emission in 121.6 nm of the 3 most visible comets now in the far UV, the image gives us scientific information about Crown H forming these comets coma due to the process known as fluorescence ionized atoms and molecules of H, N, C and O, namely the dissociation of H2O in OH and H, when sunlight falls on this, and in a rounda…